Fullenrich

FullEnrich is a B2B contact data enrichment platform built around a single mechanism: waterfall enrichment. Rather than selling access to one proprietary contact database, FullEnrich orchestrates queries across a chain of more than twenty third-party data providers — vendors frequently named in its own materials and coverage pages include Apollo, Hunter, Dropcontact, RocketReach, Clearbit, and Kaspr — and returns the first verified match. The pitch is coverage: no single provider has complete global reach, so a sequential cascade across many sources finds contacts a single-source tool would miss. The company was founded in 2023, is headquartered in San Francisco (FullEnrich Corp, 28 Geary St, Suite 650, Suite #346, per its terms of service), and operates with a distributed team across Europe and the US.

How the waterfall works

The workflow is described consistently across the vendor's site, help center, and API docs. A contact is submitted — individually, via CSV or Excel upload, by syncing a HubSpot list, via a Sales Navigator Chrome extension, or programmatically through the API. FullEnrich then routes the request through its provider sequence, one provider at a time. If a provider returns a result, that result must pass verification before it is delivered; if the result fails verification or the provider has nothing, the next provider is queried. Credits are charged only when a verified result is delivered, so failed lookups are free — this "pay per find" model is the core of the product's pricing logic and its main argument against paying for multiple single-provider subscriptions.

Verification is the other structural pillar. Every found email passes what the vendor calls triple verification — syntax validation, MX record checks, and SMTP handshake — with all three engines required to agree. The homepage claims 31.53% of data it purchases fails its own verification and is discarded. FullEnrich also attempts to resolve catch-all domains (mail servers that accept all addresses) rather than simply flagging them as risky, and reports a bounce rate under 1%. For phones, the vendor says it returns mobile numbers validated as active lines via carrier-network checks, matches line ownership against the lead's name, and returns landlines free (only mobiles consume credits). Find rates are cited at roughly 80% on average, with the vendor itself noting this varies considerably by industry and geography — a fair caveat worth taking seriously in any evaluation.

Credit model and pricing

Pricing is credit-based and published on fullenrich.com/pricing. Standard rates: 1 credit per work email found, 3 credits per valid personal email, 10 credits per mobile phone number, 1 credit per reverse email lookup, and 0.25 credits per person or company exported from Search (repeat exports of the same record are free). Entry-level paid plans start at $29/month for 500 credits (per vendor content pages; the public pricing page now advertises tiered monthly credit volumes from 500 up to 100K+, with volume discounts — one tier is quoted at $0.055 per credit). New accounts get 50 free credits with no credit card required. Credits roll over for three months on monthly plans and twelve months on yearly plans; custom enterprise plans may use different credit ratios. All plans include unlimited users with a shared credit pool, API access, and integrations.

Product surface

Beyond waterfall enrichment, the platform includes: a people/company Search database (filterable, export-able; the database itself contains no emails or phones — those come from enrichment), Reverse Email Lookup to identify who is behind an inbound email address, and live person/company enrichment (job title, tenure, headcount, industry, social links). Integration coverage is broad for a company this size: native HubSpot sync, Clay, Zapier, Make, n8n, Salesforce, a documented REST API with webhook or polling delivery, and — notably — an MCP server plus named integrations for Claude, OpenAI, and Manus, positioning it for AI-agent workflows. This matches the product's actual usage pattern in modern GTM stacks, where enrichment is increasingly invoked by agents and automation platforms rather than humans.

Security and compliance

FullEnrich states it is SOC 2 Type II certified (customers can request the report), GDPR and CCPA compliant, and runs regular penetration tests. Its trust center details Article 32 measures: HTTPS/TLS in transit, AES encryption at rest, JWT session tokens with RBAC, encrypted logging, and hosting on DigitalOcean (itself SOC 2 and ISO 27001 compliant). Terms of service define the company as a facilitator between providers and the client rather than a database owner — an accurate description of the waterfall model — and note that personal email enrichment is opt-in and places GDPR obligations on the client. One nuance from the T&Cs: personal email enrichment is positioned for recruitment use cases, which buyers should keep in mind for outbound compliance.

Fit assessment

FullEnrich fits teams that need breadth of contact coverage — especially European and mixed-geography prospecting, where regional providers matter and single-source US-centric tools underperform — and that prefer a pay-for-results credit model over flat per-seat database subscriptions. It is particularly natural in Clay-based stacks (FullEnrich ships as a native Clay action) and in agentic/automation workflows via API and MCP. Teams that primarily want a browsable contact database with emails pre-attached may prefer search-first tools, though FullEnrich's Search now covers that gap in a more limited way. Companies needing strict enterprise procurement terms should note that SSO and some security features are paid add-ons at the Enterprise tier.

Verdict

FullEnrich is a well-regarded waterfall enrichment platform whose architecture — multi-provider cascade, triple verification, pay-per-find credits — directly addresses the two biggest failure modes of single-source enrichment: coverage gaps and stale or unverified data. Its vendor-reported claims (80%+ find rate, <1% bounce) are plausible for the category but are vendor-supplied figures; independent verification should come from the free 50-credit trial run against your own segment, which the vendor explicitly encourages. Pricing is transparent and the credit economics are straightforward, though heavy mobile-phone enrichment at 10 credits per number can burn budgets faster than email-only use cases. Worth a trial for outbound, RevOps, and agency teams; evaluate against alternatives like Clay's own waterfall, Apollo, or ContactOut on your actual data rather than on marketing claims.

Sources: fullenrich.com (homepage, /pricing, /waterfall-enrichment, /integrations, /trust), help.fullenrich.com credit documentation, docs.fullenrich.com API reference, and FullEnrich's published Terms and Conditions (last updated Aug 20, 2026). All product capabilities, pricing, and performance figures above are vendor-reported as of verification date; this review contains no hands-on testing or independent ratings.