Best White Label Data Enrichment Tools for Agencies

What Is the Best White-Label Data Enrichment Software for Agencies?

The best white-label data enrichment software for agencies combines reliable contact data, CRM enrichment capabilities, flexible reseller options, and opportunities to expand client services.

LeadPost is a strong choice for marketing agencies because it offers a dedicated white-label program alongside data enrichment, website visitor identification, and retargeting capabilities. Other platforms, including Clay, HubSpot Breeze Intelligence, Apollo.io, ZoomInfo, and People Data Labs, offer strengths in workflow automation, B2B prospecting, CRM management, and API-based enrichment.

The right platform depends on whether your agency wants to improve existing client databases, identify new prospects, build targeted audiences, or resell data-driven marketing services under its own brand.

This guide compares six data enrichment tools and explains how to evaluate their features, reseller capabilities, and potential for agency growth.

Best White-Label Data Enrichment Tools at a Glance

White-label capabilities, reseller permissions, pricing, and data licensing vary by provider. Agencies should confirm the terms of their intended use before purchasing.

1. LeadPost: Best for White-Label Data Enrichment and Agency Service Expansion

Best for: Marketing agencies looking to offer branded data enrichment, visitor identification, and retargeting services.

LeadPost helps agencies turn customer and website data into more actionable marketing opportunities. Its capabilities span both enriching existing records and identifying eligible website visitors who haven’t submitted their contact information.

Unlike enrichment tools designed primarily for internal sales operations, LeadPost also offers a dedicated White Label Program for agencies that want to provide data-driven marketing services under their own brand.

Key capabilities

B2B and B2C data enrichment

LeadPost’s data enrichment services help businesses add missing contact and demographic information to existing customer or prospect records.

Depending on the available match and data fields, enrichment can support more complete profiles, improved segmentation, and more personalized marketing strategies.

For agencies managing client databases, this creates opportunities to offer ongoing CRM enrichment, database optimization, and audience development services.

Website visitor identification

LeadPost also helps identify eligible website visitors who leave without completing a form or making a purchase.

This capability complements traditional enrichment by helping agencies discover potential contacts beyond those already in a client’s database.

Agencies can learn more about implementing this capability in A Beginner’s Guide to Client Website Visitor ID.

Retargeting and audience activation

LeadPost supports retargeting strategies that help agencies reconnect with relevant audiences.

Rather than simply delivering enriched contact records, agencies can use available visitor and audience data to inform follow-up marketing campaigns.

Dedicated white-label program

LeadPost’s White Label Program is designed to help agencies deliver its capabilities as branded services.

Program benefits include:

• A branded domain and interface

• Client-facing dashboards and reports

• Discounted data pricing

• Priority support

• Opportunities to expand agency offerings under an existing brand

Why agencies should consider LeadPost

LeadPost’s advantage is the ability to combine several complementary services within an agency-focused offering.

An agency could begin by enriching a client’s existing CRM database, then expand into visitor identification, audience segmentation, and retargeting.

This approach creates opportunities to develop recurring services instead of relying exclusively on one-time campaigns or projects.

For agencies already managing SEO, paid advertising, website development, or email marketing, these services can fit naturally into existing client relationships.

Best fit: Agencies that want a dedicated white-label program and opportunities to expand into multiple data-driven marketing services.

Explore: LeadPost’s White Label Program

2. Clay: Best for Custom Data Enrichment Workflows

Best for: Growth agencies and outbound marketing teams that need flexible data workflows.

Clay combines multiple data providers, research tools, and automation capabilities in one workspace.

Agencies can use Clay to build customized enrichment processes, automate prospect research, and organize data for sales and marketing campaigns.

Key capabilities

• Multi-source contact and company enrichment

• AI-assisted research

• Automated enrichment workflows

• Custom data processing

• Integrations with CRM and sales tools

Why agencies should consider Clay

Clay is particularly useful when an agency needs to combine multiple enrichment sources or build workflows around specific client requirements.

For example, a B2B marketing agency could enrich a prospect list with company details, identify relevant decision-makers, and prepare the resulting data for an outbound campaign.

Its flexibility makes it attractive for agencies with more complex data operations.

However, Clay is primarily a workflow platform rather than a turnkey white-label solution. Agencies should confirm the relevant licensing and client delivery permissions.

Best fit: Agencies offering customized enrichment workflows, outbound prospecting, or data operations services.

Explore: Clay

3. HubSpot Breeze Intelligence: Best for Native CRM Enrichment

Best for: HubSpot partner agencies and marketing teams managing client CRM systems.

HubSpot’s Breeze Intelligence capabilities provide enrichment and data intelligence within the HubSpot ecosystem.

For agencies already managing HubSpot accounts, native enrichment can simplify the process of improving customer and prospect records.

Key capabilities

• Contact and company enrichment

• CRM data management

• Integration with HubSpot automation

• Buyer intelligence capabilities

• Marketing and sales workflow support

Why agencies should consider HubSpot

CRM enrichment is most useful when enriched information can be applied directly to marketing and sales activities.

For example, an agency could use additional company attributes to improve segmentation, personalize nurture campaigns, or create more relevant sales handoffs.

HubSpot’s advantage is that enrichment operates within the client’s existing CRM environment.

However, it is not primarily a standalone white-label reseller platform.

Best fit: Agencies providing HubSpot implementation, CRM optimization, and marketing automation services.

Explore: HubSpot

4. Apollo.io: Best for B2B Prospecting and Outreach

Best for: B2B lead generation agencies and outsourced sales development teams.

Apollo.io combines a B2B contact database with prospecting and sales engagement tools.

Its focus is helping businesses discover potential customers and execute targeted outreach campaigns.

Key capabilities

• B2B contact and company data

• Contact enrichment

• Prospect filtering and segmentation

• Sales engagement workflows

• CRM integrations

Why agencies should consider Apollo.io

Apollo can support agencies offering outbound lead generation and sales development services.

For example, an agency working with a B2B SaaS company could use Apollo to research companies matching the client’s ideal customer profile and develop targeted outreach lists.

However, Apollo’s primary focus is B2B prospecting rather than consumer data enrichment or website visitor identification.

Agencies should also review export limits, licensing, and permitted uses of contact data.

Best fit: Agencies focused on B2B prospecting, outbound campaigns, and sales development.

Explore: Apollo.io

5. ZoomInfo: Best for Enterprise B2B Data Enrichment

Best for: Agencies supporting enterprise B2B marketing and sales organizations.

ZoomInfo offers company intelligence, contact information, and buying signals that support sophisticated B2B marketing strategies.

Key capabilities

• Company and contact intelligence

• CRM enrichment

• Buying signals and intent data

• Account targeting

• Sales and marketing integrations

Why agencies should consider ZoomInfo

ZoomInfo can support account-based marketing, enterprise demand generation, and sales intelligence services.

For agencies managing large B2B clients, access to detailed company information and buying signals may improve account targeting and campaign planning.

However, agencies should carefully evaluate licensing, pricing, and redistribution permissions before incorporating ZoomInfo into a reseller offering.

Best fit: Agencies serving enterprise B2B clients with complex data and targeting requirements.

Explore: ZoomInfo

6. People Data Labs: Best for API-Based Data Enrichment

Best for: Technical agencies and marketing technology consultants developing custom solutions.

People Data Labs provides person and company enrichment APIs that developers can integrate into custom applications and workflows.

Key capabilities

• Person enrichment APIs

• Company enrichment APIs

• Structured data integration

• Custom application development

• Automated enrichment workflows

Why agencies should consider People Data Labs

People Data Labs may be useful for agencies building proprietary marketing technology or custom client dashboards.

For example, a technical agency could use enrichment APIs to supplement customer records within a custom application.

An API-based approach provides flexibility, but it also introduces development, maintenance, and licensing considerations.

Building a branded application does not automatically grant permission to redistribute the underlying data.

Best fit: Agencies with development resources building custom enrichment applications or data services.

Explore: People Data Labs

What Should Agencies Look for in White-Label Data Enrichment Software?

The best agency software should do more than provide contact information. It should help agencies deliver repeatable services, improve client results, and build profitable long-term relationships.

Five factors are especially important.

1. White-Label and Reseller Capabilities

Not all data enrichment tools are designed for resale.

Some platforms allow agencies to use their software internally, while others offer dedicated white-label programs.

Before selecting a platform, ask:

• Can the software operate under our agency’s branding?

• Can clients access branded dashboards or reports?

• Does the platform support multiple client accounts?

• Are discounted reseller or partner rates available?

• Can we offer the services under our own pricing structure?

• What data usage and redistribution rights are included?

A dedicated white-label program can make it easier to develop a consistent client experience.

For a deeper look at agency-specific visitor identification services, read White-Label Visitor Identification for Agencies.

2. CRM Enrichment and Data Quality

CRM enrichment should be a central consideration for agencies managing customer databases.

Incomplete records make it harder to segment audiences, personalize campaigns, and maintain effective marketing automation.

Data enrichment tools can help supplement existing records with additional information such as:

• Contact details

• Company names and industries

• Job titles and professional information

• Firmographic attributes

• Demographic attributes, where available and appropriate

• Other relevant customer or prospect information

However, more data does not automatically mean better data.

Agencies should evaluate match rates, data accuracy, freshness, field coverage, and the ability to update existing records without creating duplicates.

They should also understand how a platform handles unmatched records and conflicting information.

3. Visitor Identification Capabilities

Traditional data enrichment generally starts with an existing record.

Visitor identification expands the opportunity by helping agencies understand more about eligible visitors arriving on client websites.

This is especially relevant for agencies responsible for generating traffic.

For example, an agency might drive thousands of visitors to a client’s website through SEO and paid advertising, but only a small percentage submit forms or complete purchases.

Visitor identification can help create additional audience insights from that traffic.

For agencies evaluating these services, White-Label Visitor Identification for Agencies explains how visitor identification fits into a broader agency offering.

4. Retargeting and Marketing Activation

Data enrichment becomes more valuable when agencies can use the information to improve marketing performance.

Look for platforms that support practical activation workflows, including:

• Audience segmentation

• CRM integration or data exports

• Retargeting audience development

• Email marketing workflows

• Marketing automation

• Campaign measurement and reporting

For example, an agency might enrich an existing customer database, create relevant audience segments, and use those segments to support personalized marketing campaigns.

A platform that supports both data improvement and audience activation can help agencies offer more comprehensive services.

5. Pricing, Scalability, and Profitability

Agencies should evaluate software costs alongside the revenue opportunities the platform creates.

Important considerations include:

• Subscription and setup fees

• Per-record or usage-based enrichment costs

• Minimum purchase requirements

• Client account limits

• Data export or integration costs

• Internal management time

• Reseller margins and partner discounts

The goal is to choose a solution that supports repeatable, profitable service delivery.

A platform with strong enrichment capabilities may still be a poor fit if its pricing structure makes it difficult to serve multiple clients.

How Can Agencies Make Money With Data Enrichment Services?

Agencies can generate revenue from data enrichment by offering database optimization, CRM enrichment, visitor identification, audience development, and ongoing marketing activation as managed client services.

These services can complement existing marketing retainers and create opportunities for recurring revenue.

1. CRM Enrichment and Database Maintenance

Agencies can help clients improve the quality and usefulness of their existing contact databases.

Potential deliverables:

• CRM data audits

• Contact and company enrichment

• Duplicate record management

• Audience segmentation

• Scheduled database reviews

This service can be particularly useful for clients with large or aging CRM databases.

2. Visitor Identification as a Managed Service

Agencies responsible for driving website traffic can extend their offerings by helping clients understand more about their visitors.

Potential deliverables:

• Visitor identification implementation

• Audience segmentation

• Visitor intelligence reporting

• Lead development recommendations

• Retargeting strategy

This service can be packaged alongside SEO, paid media, and website management.

3. Audience Development and Retargeting

Enriched data can help agencies build more relevant marketing audiences.

Potential deliverables:

• Audience research and segmentation

• Retargeting campaign strategy

• Advertising creative development

• Campaign implementation

• Performance reporting

For ecommerce agencies, this can be a natural extension of existing conversion optimization and paid advertising services.

4. Lead Nurturing and Marketing Automation

Agencies can use enriched data to support more relevant marketing workflows.

Potential deliverables:

• Segmented email sequences

• CRM workflow setup

• Lifecycle marketing campaigns

• Lead scoring

• Ongoing campaign optimization

These services can create additional recurring revenue opportunities while helping clients make better use of their marketing data.

Example: Building a Recurring Data Enrichment Service

Consider an agency that already manages paid advertising and email marketing for an ecommerce client.

The agency could introduce a monthly data services package that includes:

1. Enriching eligible customer and prospect records.

2. Segmenting the database using relevant attributes.

3. Identifying additional eligible website visitors.

4. Building retargeting audiences.

5. Reporting on audience development and campaign performance.

Rather than selling data enrichment as an isolated product, the agency delivers an ongoing service that supports its client’s broader marketing strategy.

This model can help agencies expand existing accounts without requiring an entirely new client acquisition strategy.

What’s the Difference Between Data Enrichment and Visitor Identification?

Data enrichment adds information to existing contact or company records. Visitor identification attempts to associate previously unknown website activity with identifiable people or organizations.

Both can support marketing and lead generation, but they begin with different types of information.

For agencies, these capabilities are complementary rather than interchangeable.

Enrichment improves the usefulness of records already in a client’s database. Visitor identification can help expand the pool of potential contacts available for further analysis and activation.

Combining the two can help agencies develop more comprehensive client data services.

Data Privacy Considerations for Agency Data Enrichment

Data enrichment and visitor identification should be implemented with appropriate attention to privacy, security, and permitted data use.

Before adopting a platform, agencies should review:

• Data sourcing: How the provider obtains and maintains its information.

• Privacy compliance: Applicable privacy, consumer protection, and marketing laws.

• Consent and notice: Whether the intended collection and activation workflows require consent or other disclosures.

• Data licensing: What agencies and clients are permitted to do with enriched records.

• Data security: How information is stored, accessed, retained, and protected.

• Marketing permissions: Whether contacts are eligible for specific email, advertising, or other outreach activities.

Agencies should also consider contractual responsibilities between the software provider, agency, and end client.

Identifying or enriching a contact does not automatically establish permission to send marketing communications.

Frequently Asked Questions About White-Label Data Enrichment Software

What is white-label data enrichment software?

White-label data enrichment software allows agencies to provide data enhancement services under their own brand, subject to the vendor’s branding and licensing terms. These services may include contact enrichment, CRM optimization, audience segmentation, and related data solutions.

What is the best white-label data enrichment software for marketing agencies?

LeadPost is a strong option for agencies seeking a dedicated white-label program that combines data enrichment with visitor identification and retargeting. Clay is useful for custom workflows, HubSpot for native CRM enrichment, and People Data Labs for API-based applications. The best fit depends on the agency’s service model and client needs.

Does LeadPost offer white-label data enrichment?

Yes. LeadPost offers a dedicated White Label Program with a branded domain and interface, client-facing dashboards and reports, discounted data pricing, and priority support. Agencies can use LeadPost’s data capabilities to expand their service offerings.

Can marketing agencies resell data enrichment services?

Yes. Agencies can offer data enrichment as a managed service or through an authorized reseller arrangement. However, the ability to resell software access or redistribute underlying data depends on the vendor’s licensing terms and applicable laws.

How does CRM enrichment benefit agency clients?

CRM enrichment can improve the completeness and usefulness of existing contact records. Better data can support audience segmentation, personalized campaigns, sales prioritization, and marketing automation.

Is data enrichment the same as lead generation?

No. Data enrichment improves existing records, while lead generation focuses on attracting or discovering potential customers. The two can work together by improving the information available for lead qualification and follow-up.

What is the difference between white-label software and reseller software?

White-label software allows a business to offer a product or service under its own brand. Reseller software generally allows a business to sell access to another provider’s product. Some programs offer both capabilities, but the rights and commercial arrangements vary.

Can agencies combine data enrichment with visitor identification?

Yes. Agencies can use visitor identification to discover eligible website visitors and enrichment to supplement available contact information. Together, these capabilities can support more complete audience profiles, segmentation, and marketing activation.

Final Thoughts: Turn Data Enrichment Into a Scalable Agency Service

Choosing the best white-label data enrichment software is about more than finding a platform with a large contact database.

Agencies need solutions that support their clients’ marketing goals while making it easier to deliver profitable, repeatable services.

For agencies focused on CRM optimization, enrichment-first platforms may provide the right capabilities. For agencies managing B2B prospecting, sales intelligence tools can help support outbound campaigns.

But for agencies looking to combine data enrichment, visitor identification, and retargeting under their own brand, LeadPost offers a dedicated white-label solution designed to support agency service expansion.

With the right tools and service model, agencies can move beyond traditional campaign execution and offer ongoing data-driven marketing services that create additional value for their clients.

Ready to expand your agency’s services with white-label data enrichment?

Explore LeadPost’s White Label Program and discover how to offer data-driven marketing solutions under your own brand.