Custom List
Building Services

Focus On Prospects that Matter with Custom Lead Lists

We provide highly targeted, verified B2B leads through expert-driven list building strategies aligned with your ICP

  • Email Validation
  • Direct Dial/Contact Verification
  • CRM Integration
Get Your B2B List Building Proposal

Success Stories

...it's all about results

Healthcare

Physician Contact Data Mining for Healthcare Consulting Firm | Qualified Leads Increased by 25%

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eCommerce

Global eCommerce Seller Data Enrichment & Verification | 98% Accuracy Across 1.5M+ Records

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Transportation

Prospect Data Enrichment for European Mobility App | 120K+ Records Classified with 99.2% Accuracy

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Environmental Technology

Salesforce Data Cleansing & Enrichment for 500K+ Records | Boosted Sales by 52%

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IT

Custom B2B List Building for Software Testing Firm | 21% Surge in Verified Leads

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CUSTOM LIST BUILDING SERVICES

Eliminate Outbound Failure with B2B List Building Services

Tired of paying for prospect lists that bounce, prospects that don't respond, or “leads” who aren't even the right audience for your pitch?

Empower your SDRs and ABM teams with specialized B2B custom list building services. We utilize AI tools with expert oversight to build qualified lead lists for the enterprise sales teams. These lists match your Ideal Customer Profile (ICP), ensure low bounce rates and high deliverability, and maximize the ROI of your outreach campaigns. Every lead undergoes a manual verification process by our research analysts to ensure that job titles, company sizes, and intent signals are 100% accurate. We deliver your lists in custom formats (CSV, Excel) or integrate them directly into your CRM (Salesforce, HubSpot, Pipedrive, etc.) so you can act on outreach-ready data in time.

CUSTOM LIST BUILDING VS. DATA PROVIDERS

Why Choose Custom List Building Over Data Providers or Automated Data Collection?

Our custom list building services offer a more targeted and reliable solution than lists purchased from third-party data providers or pure-play automated data collection tools. Unlike generic list building companies, we don't rely on stagnant databases; we build every target account/profile from the ground up. Our team uses automated website data scraping, manual web research, prospecting platforms (Apollo.io, ZoomInfo, Cognism, Lusha), email tools (Mailchimp, Klaviyo), and specialized AI agents (Clay, SDRx) to build qualified lead lists for the enterprise sales teams, ensuring your outreach efforts are both personalized and impactful.

List of Potential Prospects Bought from 3P Data Providers

  • Often contain inactive profiles and outdated data.
  • May not align with your Ideal Customer Profile (ICP).
  • Result in high bounce rates and wasted resources.

Automated Data Collection (AI Tools)

  • Can quickly generate lead lists, but often lacks the accuracy and relevance needed.
  • Don’t ensure decision-maker level contacts or high-quality leads.
  • Doesn’t guarantee a list of contacts that closely matches your business ICP.

Why B2B Custom List Building Services Outperform Data Providers and AI Tools

  • Human-verified leads that align with your ICP.
  • In-depth data mining and contact research ensure full company and contact information.
  • Targeted lead lists segmented by industry, role, buying signals, and engagement potential.
  • Contact discovery for key decision-makers to shorten the sales cycle through strategic targeting.
  • Low bounce rates and high email deliverability for better outreach and a positive sender score.

CUSTOM LIST BUILDING SAMPLE

B2B List Building Services Sample

PROCESS

How Do We Build Custom Lists for B2B Prospecting

We follow a rigorous, multi-step, human-in-the-loop approach to building custom B2B lists that are not only highly targeted but also optimized for your business needs. Each step of our custom list building services process is designed to deliver campaign-ready contacts aligned with your Ideal Customer Profile (ICP), enhancing your outreach and driving meaningful sales outcomes.

1

Define Ideal Customer Profile (ICP)

We work with your sales & marketing teams, analyze your existing customers, historical sales data, and market patterns to identify the business characteristics of prospects/accounts most likely to convert. It ensures that our custom list building services align with your go-to-market strategy, enabling your team to target decision-makers precisely and eliminate irrelevant prospects.

2

Curate a List of Qualified Prospects

Next, we build target lists based on requirements. Leveraging trusted online data sources—including company websites, professional directories, and LinkedIn Sales Navigator—we automate data collection via filters and gather business information and contact details (like company name, size, location, job titles, email IDs, phone numbers).

3

Clean, Standardize & Validate Collected Data

We process the data (cleansing, standardization, normalization, and validation) to ensure accuracy and consistency. Each record is manually cross-checked against your defined ICP parameters to confirm relevance and completeness. Using a human-in-the-loop approach, we eliminate redundancies and perform email validation & syntax checks. This forms the foundation of a high-quality list of potential prospects tailored to your market segment and outreach goals.

4

Identify Missing Fields & Enrich Data

We employ a hybrid data enhancement approach. Using premium sales intelligence tools like Apollo, ZoomInfo, Lusha, we identify and resolve information gaps (like email, direct dials, etc.). With data mining and contact research (manual web research, API-driven scraping), we add firmographic, technographic, social, and intent data to add context and depth, transforming partial records into fully actionable B2B contact profiles.

5

Integrate Verified Data into CRM/MA Tools

The finalized data is securely integrated into your CRM or Marketing Automation (MA) platforms for immediate use. We ensure full compatibility with tools like Salesforce, HubSpot, Pipedrive, Zoho, and others—mapping each field to the existing data structure (via APIs, secure file transfer, or manual CRM data entry). This step ensures your sales and marketing teams can instantly begin outreach using clean, structured, and campaign-ready data.

TECH STACK/TOOLS

Tools And Methods We Use for Custom List Building

OUR SERVICES

Our Comprehensive Custom List Building Services

We offer custom list building services that cater to a variety of business needs. Whether you're looking for targeted prospect lists for email outreach, LinkedIn lead generation, or account-based marketing (ABM), we provide end-to-end solutions for businesses of all sizes.

Custom Prospect List Building

We specialize in building qualified lead lists for businesses, ensuring that every contact is verified and matches your Ideal Customer Profile (ICP).

  • Email + Phone + Postal Address: We provide comprehensive contact lists with email addresses, phone numbers, and postal addresses for multi-channel outreach.
  • Contact + Company List Building: We deliver full company and contact information, enabling you to target decision-maker level contacts in your target companies.
  • LinkedIn Lead Lists: We leverage LinkedIn lead generation strategies to capture contacts from LinkedIn, ensuring the right connections for outreach.
  • Social Media Data-Based List Building: We add data from social channels (X, Instagram, Facebook) to enrich target profiles/lead lists, and can also create social media platform-specific B2B contact lists.

Email List Building

Our email list building services are designed to ensure your email campaigns target the right prospects and achieve high deliverability. Here’s what you get when we build an email list for B2B prospecting:

  • Verified and Cleaned Data: We offer strategic mailing list compilation, verification, & cleansing.
  • Targeted for B2B Outreach: We build business email lists to match your ICP and ensure your messages reach the right people.
  • Validated Emails: We check for syntax errors, identify "catch-all" addresses, and ping mail servers to confirm the inbox is active and protect your sender score.
  • Mailing List Data Entry: Our team formats, cleans, and integrates email contact lists in your CRM or marketing tool.

Contact Discovery

Our B2B contact discovery services help identify the right decision-makers for your campaigns through web research and data scraping.

  • Targeted Web Research: Using advanced tools, we gather relevant company and contact details for target accounts that closely match your buyer criteria, enabling you to reach key stakeholders.
  • Identify High-Value Stakeholders: We look for relevant job titles/roles so that your outreach is mapped to the actual power structures within your target accounts.
  • Enrich Data for Better Outreach: By mapping organizational structure, highlighting roles with budget authority, and adding direct dials/emails, we offer a list of hard-to-find contacts that generic tools miss and ways to reach them.

Contact List Building for Enterprise ABM

We support your ABM campaigns by building targeted contact lists for high-value accounts.

  • Full Contact Coverage for Predefined Accounts: We identify all key decision-makers (economic, technical, influencers) within target organizations.
  • In-Depth Contact and Company Data Collection: We extract data related to company structure, funding, leadership changes, acquisitions, tech stack, current vendors, buying triggers, etc.
  • Region-Specific Lists (EU, APAC): Our region-specific contact data lists are GDPR-compliant and follow local regulations to ensure your outreach is legally safe.

Ongoing List Cleanup & Data Validation

Data decays quickly, so we provide data maintenance services to revive your legacy databases, protect your sender reputation, and ensure your CRM remains a source of truth.

  • Contact List Cleansing: We check existing data to identify inaccurate, incomplete, or outdated records.
  • Data Enrichment and Standardization: We standardize data formats and append missing data or additional information, enriching your B2B prospecting lists.
  • Contact Data & Email Validation: We validate all prospect data (phone numbers, emails, postal addresses) from multiple sources to reduce bounce rates and ensure high-quality engagement.

Campaign-Based List Segmentation

We organize your prospect list into targeted segments based on industry, role, or other campaign-specific criteria so you can run multiple personalized outreach sequences simultaneously & get high response rates.

  • Segmentation for Campaigns: We segment your lists based on campaign objective, i.e., cold outreach, LinkedIn lead generation, ABM, event/webinar, etc., to ensure relevant messaging.
  • Lead Generation Support: We provide LinkedIn lead generation services and email-based outreach support to help engage qualified leads.

Security and Compliance

Your data security is our priority

ISO
Certified

HIPAA
compliance

GDPR

GDPR
adherence

Regular
security audits

Encrypted data
transmission

Secure
cloud storage

Outsource List Building Services—Save Hundreds of Hours for Your SDRs

Here’s all you need to do to land verified, high-quality B2B leads that can convert easily:

  • Define Your Ideal Customer Profile (ICP)
  • Select the Data Fields You Need (Email, Phone, Company Info, etc.)
  • Choose Your Data Delivery Frequency (Daily, Weekly, or Monthly)
Get Started with a Free Sample List

TYPES OF DATA

What Data Can We Collect for Your B2B Prospect Lists?

We understand that accurate, detailed data is crucial for building high-quality B2B lists that drive successful outreach. We compile a wide range of verified contact information to create lists of businesses that match your data for lead generation requirements.

Industry
Job Titles/Roles
Company Level Data
Email & Direct Dials
Geography
Technographics
Firmographics
Social Media Data
LinkedIn Data

We collect detailed industry data to ensure your leads are aligned with specific market segments, allowing you to target businesses that fit your Ideal Customer Profile (ICP). This includes industry classification and related sub-categories for more refined targeting.

  • Primary industry (e.g., SaaS, Manufacturing, Healthcare, Financial Services, E-commerce)
  • Sub-categories (e.g., Marketing Technology, Sales Enablement, HR Tech, Payment Processing)
  • NAICS codes (North American Industry Classification System)
  • SIC codes (Standard Industrial Classification)
  • Niche verticals (e.g., B2B SaaS, DTC brands, Medical device manufacturing)

We focus on capturing decision-maker level contacts within organizations. From executives to department heads, we ensure that your lists include the most relevant job titles and roles that align with your sales objectives, helping you connect with key players in the decision-making process.

  • C-Suite: CEO, CFO, CRO, CMO, CTO, COO
  • VP-Level: VP of Sales, VP of Marketing, VP of Revenue Operations, VP of Engineering
  • Director-Level: Director of Sales Development, Director of Demand Generation, Director of IT
  • Manager-Level: Sales Manager, Marketing Manager, Product Manager
  • Specialized Roles: Head of Growth, Revenue Operations Manager, Sales Enablement Lead, SDR/BDR Manager
  • Functional Roles: Procurement Manager, IT Administrator, HR Business Partner

Our B2B list building services gather detailed company-level information, including company name, size, location, and revenue, enabling you to identify high-potential companies. This helps you tailor your outreach for each business, enhancing the relevance and success of your campaigns.

  • Company Name: ABC Corp, XYZ Industries
  • Company Size: 50-200 employees, 200-500 employees
  • Revenue: $10M–$50M, $50M–$200M
  • Location: New York, London, Berlin, Sydney
  • Industry: E-commerce, SaaS, Healthcare

We build account and contact lead lists (including mobile number & email) to ensure your sales team can reach decision-makers across all channels. This ensures high deliverability and direct access to decision-makers, minimizing bounce rates and maximizing engagement.

  • Corporate email addresses (firstname.lastname@company.com)
  • Personal/alternative email addresses (for C-suite when corporate emails bounce)
  • Direct dial office numbers
  • Mobile phone numbers (for key executives)
  • Office extensions
  • Email verification status (verified, catch-all, risky)
  • Phone number type (landline, mobile, VoIP)
  • Alternate contact methods (assistant email/phone)

We gather geographic data such as location, timezone, and regional insights to ensure that your outreach is not only relevant but also compliant with local regulations (like GDPR). Geographic targeting ensures you connect with prospects in the right regions, improving your engagement rates.

  • Location: North America, Europe, APAC
  • Timezones: EST, IST, GMT, CET
  • Region-specific targeting (e.g., targeting healthcare professionals in the US and UK)
  • Local regulations: GDPR compliance, CCPA

We help you understand the technologies that your target companies are using. From software platforms to cloud infrastructure, we provide technographic data to ensure your outreach speaks directly to the needs of each organization’s tech stack.

  • Cloud Infrastructure: AWS, Microsoft Azure, Google Cloud
  • CRM Systems: Salesforce, HubSpot, Pipedrive
  • Marketing Automation Tools: Marketo, HubSpot, Pardot
  • Enterprise Resource Planning (ERP): SAP, Oracle ERP, Microsoft Dynamics
  • eCommerce Platforms: Shopify, Magento, WooCommerce
  • Collaboration Tools: Slack, Microsoft Teams, Zoom
  • Data Management Systems: Tableau, Informatica, Alteryx
  • Cybersecurity Solutions: Palo Alto Networks, Cisco, McAfee

Firmographic data includes company size, revenue, industry, and location—providing key details about each organization’s structure and market position. This helps you create tailored outreach strategies based on firmographic criteria.

  • Company size: Small (1-50 employees), Mid-market (51-500 employees), Large (500+ employees)
  • Revenue: $1M–$10M, $10M–$50M, $50M+
  • Industry: Manufacturing, Finance, Healthcare, E-commerce
  • Location: U.S., Europe, APAC regions

We collect data from social media profiles, including LinkedIn URLs, Twitter handles, and other relevant social profiles, enabling you to engage with leads across platforms. This helps with multi-channel outreach and ensures you reach decision-makers wherever they are active.

  • LinkedIn profiles (e.g., linkedin.com/in/johndoe)
  • Twitter handles (e.g., @janedoe)
  • Facebook pages (for businesses or public figures)
  • Instagram profiles (for personal brands, B2C businesses)

As part of our LinkedIn lead generation services, we gather LinkedIn contact details and profile information, providing direct access to your target decision-makers through personalized outreach.

  • LinkedIn profiles: Name, job title, company, location, LinkedIn URL
  • LinkedIn connections: First-degree connections with decision-makers
  • Endorsements & Skills: Key competencies, endorsements from peers or colleagues

  • Industry

    We collect detailed industry data to ensure your leads are aligned with specific market segments, allowing you to target businesses that fit your Ideal Customer Profile (ICP). This includes industry classification and related sub-categories for more refined targeting.

    • Primary industry (e.g., SaaS, Manufacturing, Healthcare, Financial Services, E-commerce)
    • Sub-categories (e.g., Marketing Technology, Sales Enablement, HR Tech, Payment Processing)
    • NAICS codes (North American Industry Classification System)
    • SIC codes (Standard Industrial Classification)
    • Niche verticals (e.g., B2B SaaS, DTC brands, Medical device manufacturing)

  • Job Titles/Roles

    We focus on capturing decision-maker level contacts within organizations. From executives to department heads, we ensure that your lists include the most relevant job titles and roles that align with your sales objectives, helping you connect with key players in the decision-making process.

    • C-Suite: CEO, CFO, CRO, CMO, CTO, COO
    • VP-Level: VP of Sales, VP of Marketing, VP of Revenue Operations, VP of Engineering
    • Director-Level: Director of Sales Development, Director of Demand Generation, Director of IT
    • Manager-Level: Sales Manager, Marketing Manager, Product Manager
    • Specialized Roles: Head of Growth, Revenue Operations Manager, Sales Enablement Lead, SDR/BDR Manager
    • Functional Roles: Procurement Manager, IT Administrator, HR Business Partner

  • Company Level Data

    Our B2B list building services gather detailed company-level information, including company name, size, location, and revenue, enabling you to identify high-potential companies. This helps you tailor your outreach for each business, enhancing the relevance and success of your campaigns.

    • Company Name: ABC Corp, XYZ Industries
    • Company Size: 50-200 employees, 200-500 employees
    • Revenue: $10M–$50M, $50M–$200M
    • Location: New York, London, Berlin, Sydney
    • Industry: E-commerce, SaaS, Healthcare

  • Email & Direct Dials

    We build account and contact lead lists (including mobile number & email) to ensure your sales team can reach decision-makers across all channels. This ensures high deliverability and direct access to decision-makers, minimizing bounce rates and maximizing engagement.

    • Corporate email addresses (firstname.lastname@company.com)
    • Personal/alternative email addresses (for C-suite when corporate emails bounce)
    • Direct dial office numbers
    • Mobile phone numbers (for key executives)
    • Office extensions
    • Email verification status (verified, catch-all, risky)
    • Phone number type (landline, mobile, VoIP)
    • Alternate contact methods (assistant email/phone)

  • Geography

    We gather geographic data such as location, timezone, and regional insights to ensure that your outreach is not only relevant but also compliant with local regulations (like GDPR). Geographic targeting ensures you connect with prospects in the right regions, improving your engagement rates.

    • Location: North America, Europe, APAC
    • Timezones: EST, IST, GMT, CET
    • Region-specific targeting (e.g., targeting healthcare professionals in the US and UK)
    • Local regulations: GDPR compliance, CCPA

  • Technographics

    We help you understand the technologies that your target companies are using. From software platforms to cloud infrastructure, we provide technographic data to ensure your outreach speaks directly to the needs of each organization’s tech stack.

    • Cloud Infrastructure: AWS, Microsoft Azure, Google Cloud
    • CRM Systems: Salesforce, HubSpot, Pipedrive
    • Marketing Automation Tools: Marketo, HubSpot, Pardot
    • Enterprise Resource Planning (ERP): SAP, Oracle ERP, Microsoft Dynamics
    • eCommerce Platforms: Shopify, Magento, WooCommerce
    • Collaboration Tools: Slack, Microsoft Teams, Zoom
    • Data Management Systems: Tableau, Informatica, Alteryx
    • Cybersecurity Solutions: Palo Alto Networks, Cisco, McAfee

  • Firmographics

    Firmographic data includes company size, revenue, industry, and location—providing key details about each organization’s structure and market position. This helps you create tailored outreach strategies based on firmographic criteria.

    • Company size: Small (1-50 employees), Mid-market (51-500 employees), Large (500+ employees)
    • Revenue: $1M–$10M, $10M–$50M, $50M+
    • Industry: Manufacturing, Finance, Healthcare, E-commerce
    • Location: U.S., Europe, APAC regions

  • Social Media Data

    We collect data from social media profiles, including LinkedIn URLs, Twitter handles, and other relevant social profiles, enabling you to engage with leads across platforms. This helps with multi-channel outreach and ensures you reach decision-makers wherever they are active.

    • LinkedIn profiles (e.g., linkedin.com/in/johndoe)
    • Twitter handles (e.g., @janedoe)
    • Facebook pages (for businesses or public figures)
    • Instagram profiles (for personal brands, B2C businesses)

  • LinkedIn Data

    As part of our LinkedIn lead generation services, we gather LinkedIn contact details and profile information, providing direct access to your target decision-makers through personalized outreach.

    • LinkedIn profiles: Name, job title, company, location, LinkedIn URL
    • LinkedIn connections: First-degree connections with decision-makers
    • Endorsements & Skills: Key competencies, endorsements from peers or colleagues

CLIENT SUCCESS STORIES

It's all about results.

Here’s Proof of What Targeted Lists Can Do for Your Sales & Marketing Campaigns

Discover the tangible, meaningful improvements our clients experience across their workflows, marketing campaigns, outreach precision, and sales initiatives when they outsource list building services​ to SunTec India.

data mining & enrichment services

Discover how our data mining & enrichment services provided a client with a precise, targeted list of US physicians

40%

Increment in Prospect Outreach Efficiency

25%

Rise in Qualified Leads

35%

Enhancement in Lead Data Accuracy
Read More
Contact Discovery and Data Enrichment

End-to-end contact discovery, data enrichment, and validation for a global eCommerce seller database across Amazon and Shopify platforms.

98%

Data Accuracy Achieved

40%

Improved Lead Generation

60%

Faster Lead Acquisition
Read More
Mobility App Data Management and Classification

Delivered a verified, NAICS-classified database of 61K companies and 59K contacts for global expansion.



99.2%

Accurate Data Classification

40%

Higher Client Acquisition
Read More
optimizing CRM data

Helping a Water Technology Company Boost Its Marketing and Sales Effort Through Salseforce Data Cleansing and Account Profiling

39%

Improved Email Delivery Rate

25%

Increase in Click Through Rate

52%

Boost in Sales With Clean and Accurate Data
Read More
custom-list-building

Discover how we helped the tech company identify and engage with high-potential leads by handling web research and personalized list building

30%

Increase in Sales Efforts

21%

Increase in Verified Leads
Read More

View All

INDUSTRY SOLUTIONS

Custom List Building Services for Diverse Industries

In B2B outreach, a 'one-size-fits-all' list is a recipe for high bounce rates and low engagement. Different industries live in different digital ecosystems—some on LinkedIn, others in niche trade directories or regulatory filings. We tailor our B2B list building services to the unique DNA of your sector, ensuring that whether you are targeting Healthcare, Fintech, or Construction, we capture the nuanced data points that will support your outreach efforts.

Healthcare & Life Sciences

  • B2B list building services to gather contact data for healthcare professionals, including physicians, specialists, hospital administrators, and healthcare decision-makers.
  • Build targeted lists for hospitals, clinics, and healthcare institutionsto connect with key decision-makers in the medical field.
  • Lead discovery services to identify top contacts like doctors, pharmacists, and medical researchers that align with buyer criteria.
  • B2B lead lists for pharma, focusing on specialists, treatment areas, and clinical trial decision-makers.

Financial Services

  • Custom list building services for financial advisors, CFOs, fund managers, and compliance officers to maximize your outreach to top-tier decision-makers.
  • B2B Contact list building services for investment firms, banks, wealth management companies, and other financial institutions.
  • Lead and customer data enrichment for insurance professionals.
  • B2B contact discovery services for decision-makers in niche sectors, such as private equity or venture capital.

Technology / SaaS / IT

  • B2B list building services for SaaS providers, IT consultants, and technology vendors.
  • Lead data enrichment for CTOs, product managers, DevOps engineers, and software developers.
  • Custom lists for IT service providers and cloud computing companies to identify companies using specific software tools.
  • Technographics-based targeting to gather insights on companies using particular technologies like AWS, Azure, or Salesforce.
  • B2B lists based on enterprise tech buyer profiles, ensuring outreach to those with purchasing authority.

Retail & eCommerce

  • Data mining and contact research for businesses in retail, identifying decision-makers and market trends.
  • Targeted B2B lead lists for eCommerce managers, marketing directors, and merchandising managers in the retail sector.
  • B2B contact list building services for retail professionals, supply chain managers, and inventory planners in the eCommerce industry.
  • B2B lead generation for retail decision-makers using geographic data to target specific regions for seasonal campaigns.
  • Email list building services for multi-channel retail outreach, reaching the right eCommerce professionals via email.

Real Estate & Construction

  • Custom B2B lists for real estate companies, property managers, and contractors to facilitate construction projects and real estate transactions.
  • Lead discovery services for architects, project managers, and construction engineers.
  • Firmographics-based segmentation for real estate professionals, targeting companies by size, location, and construction projects.
  • Location-based targeting for real estate markets, ensuring your list of potential prospects is region-specific.
  • B2B lists for construction-related businesses, including architectural firms, general contractors, and suppliers.

White-label Data Enrichment

  • Custom list building services for white-label data enrichment providers serving marketing agencies and data resellers.
  • B2B lead lists for data analytics companies and B2B marketing agencies, offering clean, accurate, and verified prospect data to clients.
  • Lead generation services for businesses requiring custom prospect lists to deliver white-label solutions to their customers.
  • API-driven scraping and mining prospect data to gather verified contact data from multiple sources to deliver custom lists on demand.
  • Seamless business data enrichment via CRM data entry & integration, ensuring secure delivery of qualified leads.

Manufacturing

  • Targeted B2B lists for manufacturers, procurement managers, and operations managers in industrial sectors.
  • Custom contact lists for manufacturing professionals, including supply chain directors, plant managers, and production engineers.
  • Geographic targeting for manufacturing hubs, ensuring your outreach is focused on specific industries and regions.
  • B2B list building services for manufacturers, ensuring you target the right decision-makers in procurement, inventory management, and production.
  • Lead generation for industrial sectors and manufacturing companies, ensuring effective contact discovery and list segmentation.

Legal & Professional Services

  • Custom list building services for law firms, corporate lawyers, and legal departments to help you connect with key professionals in the legal sector.
  • Lead data enrichment for senior partners, general counsels, and legal experts.
  • B2B contact lists for professional service providers in the legal, accounting, and consulting sectors.
  • Contact discovery services to target legal decision-makers and clients requiring specific legal services.
  • B2B lead lists for legal outreach, ensuring your firm connects with the right contacts within the legal industry.

Hospitality & Travel

  • Build a list of contacts in the travel industry for hotel managers, event planners, tourism boards, and travel agents.
  • Lead discovery services for hotel chains, hospitality venues, and conference organizers.
  • Geographic targeting for local tourism and global travel businesses, ensuring your B2B lists are regionally focused.
  • Contact list building services for hospitality decision-makers like hotel owners, event coordinators, and travel advisors.
  • B2B email marketing lists for hotel chains, travel businesses, and destination marketers.

Energy & Utilities

  • Custom list building services for energy providers, utility companies, and renewable energy organizations.
  • B2B lead lists for project managers, energy consultants, and key decision-makers in the energy sector.
  • Geographic targeting for energy-related projects, including solar, wind energy, and oil & gas industries.
  • Contact discovery services for energy industry professionals, connecting with the right decision-makers for energy and utility initiatives.
  • Firmographics for energy companies and utilities, ensuring your outreach is industry and region-specific.

What Sets us Apart

Enterprise-Ready B2B List Building Services Powered by Human Precision & AI

The highest cost in B2B sales & marketing isn't the data—it's the time your team wastes on bad leads.

We help your enterprise move past that challenge and toward real-time intelligence with an AI-powered, human-verified path to your next closed deal, backed by multi-layer email validation that protects your deliverability and sender scores. By blending AI & automation with manual oversight from subject-matter experts, we ensure your outreach is fueled by high-fidelity data and that every contact is 'active' and relevant to your campaign.

Zero Stale Data

Custom lists compiled from scratch for every project, with recently verified data.

Guarantee of Accuracy

Get 99.95% field-level accuracy on all critical fields(email, phone, title, company, country).

Clean CRM Integration

Delivering a clean, non-redundant dataset to your CRM with a Dedupe Rate ≥ 99.5%

No Mandatory Annual Contracts

Flexible pricing models, easy team scalability, and complete ownership of data

RELATED SERVICES

Custom List Building Is One Piece of a Broader Marketing And Sales Strategy

To consistently identify, reach, and convert qualified prospects, your business needs a robust, data-driven foundation. We provide the end-to-end support needed at every stage of sales and marketing execution—from verified, intent-driven prospect intelligence to lead generation and data management—empowering your teams to drive conversions with confidence.

LinkedIn Lead
Generation

Our team helps you leverage LinkedIn for targeted B2B outreach with profile enrichment, connection building, InMail campaigns, and lead generation optimized for LinkedIn Sales Navigator.

Learn More

Data Cleansing
Services

We prepare your contact and business data for effective use by validating existing records, removing irrelevant, incomplete, duplicate, or incorrect data, and appending relevant data, while ensuring data consistency.

Learn More

B2B Data Enrichment Services

We turn your contact and prospect databases into reliable sources of actionable data by updating outdated records, adding missing firmographic and contact details, and standardizing all data fields.

Learn More

CONTACT US

Let’s Build Your Custom B2B Lead List and Boost Your Sales Pipeline

Focus on engaging the right decision-makers and converting qualified leads while we handle the heavy lifting of building your custom B2B list. We ensure your outreach efforts are supported with human-verified, cleaned, and segmented data aligned with your Ideal Customer Profile (ICP).

Request a free sample list to see how our custom list building services can help you scale your outreach and drive higher conversion rates.

FAQ - Frequently Asked Questions

B2B Custom List Building Services

While platforms like ZoomInfo, Apollo.io, or Lusha offer great data in large volumes, these are generalist, static databases naturally prone to data decay. We specialize in B2B custom list building services, finding target prospects that align with your Ideal Customer Profile (ICP). Our services offer the best coverage possible by combining data from prospecting platforms like ZoomInfo, validating it via automated scraping, and enriching it with additional records through manual research,, ensuring low bounce rates and higher-quality leads, unlike generic data platforms.

We validate every email and phone number, using a combination of human research and automated systems to ensure data accuracy. This significantly reduces bounce rates and improves campaign success by providing you with reliable contact data.

Yes, our B2B list building services comply with prominent global data privacy regulations, like GDPR, as well as region-specific and enterprise-specific legal policies, ensuring your contact lists are secure and compliant. We also follow ethical data collection practices to protect your business.

Most 'bad' data experiences come from vendors who resell static, pre-scraped databases. But we don’t sell data. We offer a custom research service, collect data specific to your criteria only, align domain experts to verify the nuances, utilize AI and automation to speed up the process, and ensure 99.95% field-level data accuracy before delivering custom B2B lists to your sales/marketing teams.

Not at all. Every project is overseen by a dedicated manager who acts as a single point of contact and keeps things on schedule. Depending on your needs, we can offer round-the-clock support and the flexibility to scale resources as needed, ensuring that we meet your expectations without any communication friction.

We focus on providing high-quality B2B custom list building services​ that are highly relevant to your ICP. If you're not satisfied with the performance, we optimize your data for lead generation through contact list cleansing to match your sales needs better and improve lead engagement.

When you outsource list building services​ to us, you will receive a custom list of potential prospects tailored specifically to your ICP and industry needs. Our focus is on qualified leads and decision-makers, ensuring that the lists align with your specific sales and marketing goals.

We provide fast turnaround times, delivering custom list building services within your expected window, ensuring you can quickly begin your outreach efforts and meet your campaign deadlines.

No, our B2B lists are CRM-ready and delivered in your required format, and they integrate easily with platforms like Salesforce, HubSpot, and Pipedrive, ensuring a seamless transition and data consistency within your system.

We offer flexible hiring options with no long-term contracts for the contact list building services. You can opt for B2B list building services without the commitment of high upfront fees, allowing you to scale as needed.

Our custom list building services work behind the scenes, providing you with the decision-maker level contacts you need to reach qualified leads while ensuring that you maintain your position as the trusted expert.

We prioritize data security through ISO-certified processes (ISO 27001:2022 and ISO 9001:2015), following GDPR and HIPAA compliance, signing non-disclosure agreements, and securing all your data with strict role-based accessprotocols to ensure that your information is protected at all times.

Unlike pre-built lists, our B2B list building services focus on gathering relevant company and contact details and mining prospect data through API-driven scraping and human verification to match your ICP. This approach delivers more accurate & relevant decision-maker level contacts that drive higher ROI for your sales and marketing efforts.

B2B list building services are specialized solutions designed to help businesses generate qualified leads by creating highly targeted prospect databases based on business-specificIdeal Customer Profile (ICP). Custom list building services focus on identifying potential business customers (prospects) and gathering information such as email addresses, phone numbers, job titles, LinkedIn profiles, and company details. With our B2B lead generation services, your sales and marketing teams can execute personalized outreach campaigns, saving valuable time and boosting conversions.

Investing in custom list-building services provides multiple benefits that positively enhance your lead generation and sales efforts:

  • Precision Targeting: Get verified leads (only those prospects who match your Ideal Customer Profile (ICP)), ensuring your sales team focuses their efforts on converting qualified leads instead of wasting time and efforts on bad leads with less conversion likelihood.
  • Faster Campaign Activation: With verified, accurate lead/prospect data, your marketing and sales teams can launch outreach campaigns immediately, avoiding delays due to contact list cleansing.
  • Higher Conversion Rates: By getting decision-maker level contacts and full company and contact information, your chances of converting leads increase significantly.
  • Multi-Channel Engagement: With access to verified email, phone numbers, and social media profiles, you can build a more refined, comprehensive, and effective strategy to target prospects across multiple channels.