10 Best Data Enrichment Tools for Founders [2026 Updated]

1. Clearbit

• Type: Paid
• URL: https://clearbit.com
• Overview: Clearbit provides B2B data enrichment that appends firmographic, demographic and technographic attributes to leads and accounts to improve targeting and segmentation. It offers real-time APIs and batch enrichment to keep CRMs and marketing platforms up to date.

2. ZoomInfo

• Type: Paid
• URL: https://www.zoominfo.com
• Overview: ZoomInfo is an enterprise B2B data platform that enriches contact and company records with detailed firmographics, direct-dial numbers, and intent signals. It integrates with CRMs and automation tools to power prospecting, segmentation, and account-based marketing.

3. Apollo

• Type: Paid
• URL: https://www.apollo.io
• Overview: Apollo offers a living B2B database and enrichment services that fill missing contact and company fields, deduplicate records, and push updates into CRMs via API or CSV. It bundles enrichment with intent and engagement signals to improve outreach accuracy and campaign performance.

4. Lusha

• Type: Paid
• URL: https://www.lusha.com
• Overview: Lusha provides contact and company enrichment focused on direct phone numbers, emails, and up-to-date job and company data for B2B prospecting. It offers APIs, CSV enrichment and CRM integrations to automate data updates and reduce manual research.

5. Hunter

• Type: Free
• URL: https://hunter.io
• Overview: Hunter enriches leads by turning email addresses or domains into profiles with names, positions, company details, and associated metadata via API or bulk CSV. It combines email verification and enrichment to help marketers improve deliverability and segmentation.

6. Snov.io

• Type: Free
• URL: https://snov.io
• Overview: Snov.io is a prospecting and enrichment platform that finds emails, enriches contact records with firmographic details, and verifies addresses to improve outreach accuracy. It supports bulk CSV enrichment, CRM syncs, and an API for automated data workflows.

7. People Data Labs

• Type: Paid
• URL: https://www.peopledatalabs.com
• Overview: People Data Labs delivers person- and company-level enrichment APIs that append rich demographic, professional, and social attributes for identity resolution and segmentation. Their datasets and API support large-scale enrichment, matching, and custom attribute retrieval for marketing and analytics.

8. Pipl

• Type: Paid
• URL: https://pipl.com
• Overview: Pipl provides identity and contact enrichment that links emails, names, and phone numbers to comprehensive profiles containing professional and digital footprint data. It’s designed for marketers and trust teams needing high-precision enrichment and identity resolution.

9. Seamless.AI

• Type: Paid
• URL: https://www.seamless.ai
• Overview: Seamless.AI offers real-time B2B data enrichment that fills missing contact details, direct dials, and company attributes to reduce data decay and improve outreach. The platform supports CSV enrichment, CRM syncs, and API access for automated list cleansing and augmentation.

10. FullContact (Contacts API by FullContact / Profile enrichment)

• Type: Paid
• URL: https://www.fullcontact.com
• Overview: FullContact provides person and company enrichment APIs that append social handles, demographic and firmographic details to emails or domains for richer segmentation. The service is built for marketers and platforms that need normalized identity profiles and cross-channel mapping.