FullEnrich review: B2B data enrichment waterfall — verified emails and direct mobiles
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The multi-provider waterfall is the entire product, and understanding how it actually works — not just the marketing description — changes how you evaluate it against alternatives.
What makes FullEnrich stand out
The multi-provider waterfall is the entire product, and understanding how it actually works — not just the marketing description — changes how you evaluate it against alternatives.
Each data provider in the cascade has a fundamentally different data collection architecture. Some crawl professional networks and public directories continuously. Others source from opt-in databases compiled from job applications, conference registrations and B2B content downloads. Some buy carrier-derived mobile number data directly from telecoms partners. Others infer email patterns from confirmed addresses at the same domain, then verify the inferred address by proxy. None of these methods has universal coverage, and their strengths vary sharply by geography, industry vertical and seniority level. A provider with excellent coverage of US SaaS engineering teams may have near-zero coverage of German Mittelstand operations managers. This is the real reason a waterfall beats any single source — you're not just retrying the same lookup, you're querying fundamentally different collection architectures in sequence until one of them has the answer.
Who it's for
- →SDR and outbound teams using Smartlead, Instantly or Lemlist where 20-40% of contacts come back with missing emails
- →RevOps teams running CRM enrichment on historical HubSpot or Pipedrive records with patchy contact data
- →Agencies and SDR teams with a cold calling motion that need direct mobile numbers in EU and US markets
- →Teams already using Clay who want to run a cheaper, simpler waterfall outside the Canvas for high-volume pure-enrichment jobs
- →SMB teams that need better hit-rates than Apollo's native data delivers but can't justify Clay or ZoomInfo pricing
Who it's not for
- ✕Teams running phone-heavy campaigns at volume on the $29 Starter plan — 10 credits per phone = 50 phone lookups/month maximum
- ✕All-in-one seekers: Apollo bundles a 275M+ database, sequencer and dialer at comparable pricing if you need the full stack
- ✕ABM and intent-driven motions where firmographic signals and buying intent matter more than raw contact data — use ZoomInfo, 6sense or Clay + Bombora for that
- ✕Buyers who need real-time LinkedIn profile enrichment in-browser — FullEnrich's Chrome extension lost LinkedIn functionality in June 2024 and hasn't recovered it
- ✕Teams needing native Salesforce sync — Salesforce integration is not live as of May 2026 (Zapier workaround required)
FullEnrich pricing
| Tier | Price | Key unlock |
|---|---|---|
| Free | $0 | 50 credits/mo, no credit card |
| Starter | $29/mo | 500 credits/mo, pay-per-success |
| Pro | $55/mo | 1,000 credits/mo, Make + n8n integrations |
| Scale | From ~$400/mo | Custom volume, bring your own API keys |
AI features in FullEnrich
The system ranks providers by historical hit-rate for each query type, industry vertical, geography and seniority level. Cheaper providers are tried first; expensive tier-1 providers are only invoked when lower-tier sources miss. The routing is continuously updated as FullEnrich observes which providers win on which query patterns, lowering the average cost per successful enrichment over time.
Each returned email and phone number carries a confidence score based on the number of independent sources that agreed on the result and the verification method used. High-confidence results (multiple-source agreement + SMTP verified) are separated from single-source unverified results in the output, letting downstream automation apply different logic to each tier.
Core platform features
The core feature. FullEnrich sequences requests across 15-20+ premium data providers per lookup, retrying with successively broader sources until a result is found or the cascade exhausts all providers. Named public providers include Hunter, Datagma, PeopleDataLabs, ContactOut and Apollo. You pay only when the waterfall returns a verified result.
Upload a CSV with first name, last name and company domain (or LinkedIn URL) — FullEnrich processes thousands of records and returns a results file with verified emails, mobile numbers and confidence scores. Standard processing time is minutes for batches up to a few thousand; larger jobs may queue. Most outbound teams run weekly enrichment batches before uploading to their sequencer.
The API supports both single-contact real-time enrichment (returns in seconds, used for CRM enrichment on new contact creation) and bulk enrichment via async job with webhook callback (returns when complete, used for large-batch processing). The API is well-documented and commonly used via Clay, Make and n8n.
Native two-way sync with HubSpot and Pipedrive allows you to trigger enrichment from new contact creation or run enrichment jobs across existing records. The HubSpot integration is the most mature — it maps FullEnrich results directly to HubSpot properties, including confidence scores and the source provider.
Pre-built connectors for the three major automation platforms cover teams not on HubSpot or Pipedrive, and teams that want to route results conditionally based on enrichment outcome. Common automations: enrich inbound form submissions, trigger sequence enrollment when email is found, route to LinkedIn sequence when email is not found.
Beyond email and phone, FullEnrich returns company data (industry, size, location, tech stack signals) and person data (job title, seniority, LinkedIn URL) at 0.25 credits per contact when pulled without an email or phone lookup. Useful for CRM hygiene and ICP scoring without burning full credits on data you don't need.
Strengths & weaknesses
Materially higher hit-rate than single-source tools
Pay-per-success pricing removes wasted spend
Strong direct mobile coverage for US and EU
Lowest-friction entry point in the enrichment category
4.8/5 on G2 with 165 reviews — unusually strong for a data tool
Phone credits are a trap on the Starter plan
No LinkedIn Chrome extension since June 2024
No native Salesforce integration
Pure data layer with no workflow logic
Catch-all emails inflate reported hit-rates
Divided Trustpilot profile — understand why before drawing conclusions
Best FullEnrich alternatives
Clay
The right upgrade path when you need more than a waterfall. Clay sits on top of 100+ providers (FullEnrich is one of them), adds AI agent research columns, conditional routing logic and native pushes to Smartlead, Instantly and Lemlist. It's 3-5x more expensive at equivalent volumes and has a steep learning curve, but it replaces 4-6 separate tools once you're running it properly. If your workflow is 'enrich → score → personalise → route,' Clay earns the premium. If it's just 'get me a verified email,' FullEnrich is cheaper and faster.
Apollo.io
The right choice if you also need a sequencer and a prospecting database. Apollo bundles a 275M+ contact database, email sequencer, basic dialer and enrichment into one platform starting at $49/user/month. The data quality is strong for US enterprise; weaker in EMEA and SMB segments. For teams that need to find net-new contacts (not just enrich a list they already have), Apollo is the better entry point. FullEnrich wins for pure enrichment lift on top of an existing list.
Cognism
The right choice for GDPR-regulated European outreach where phone-verified mobile numbers are non-negotiable. Cognism is more expensive than FullEnrich (typically $1,000+/month minimum contract) but its Diamond Data phone-verified coverage for UK, DACH and Nordics is best-in-class. For US-heavy ICPs, FullEnrich is cheaper with comparable mobile results.
Lusha
The right choice for individual contributors and small teams who want a lighter-weight tool with a still-functioning LinkedIn Chrome extension. Lusha's per-user pricing is cheaper for a single SDR than FullEnrich's monthly plan if you're only enriching 50-100 contacts a month. The trade-off: single-source data means lower hit-rates, and there's no bulk API for automation.
- H
Hunter.io
The right choice for email-only enrichment at low volume when you don't need phones. Hunter's domain search and email verification is straightforward and starts free. The find rate is lower than FullEnrich (single source vs. waterfall) but for teams that only need work emails in well-covered domains like US tech, the gap is smaller than it sounds. No phone enrichment at all.
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FullEnrich is a B2B data enrichment tool that finds verified emails and direct mobile phone numbers for contacts. Instead of querying a single data provider, it uses a 'waterfall' architecture that sequences requests across 15-20+ premium providers — Hunter, Datagma, PeopleDataLabs, ContactOut, Apollo and others — stopping when a verified result is found. Email results are verified via SMTP handshake; phone results via carrier ping. You only pay a credit when enrichment succeeds.
FullEnrich starts at $29/month for 500 credits (or $26/month annual). The Pro plan is $55/month for 1,000 credits ($49/month annual). Credits cost: 1 per verified business email, 10 per direct mobile phone number, 3 per personal email. There's a free tier with 50 credits and no credit card required. The credit math that catches most teams off-guard: phone enrichment at 10 credits/number burns through the Starter plan in about 50 contacts if you're looking up both email and phone simultaneously.
FullEnrich reports an average hit rate of approximately 80% across all enrichment requests. Independent benchmarks put the email hit rate at 70-85% on US enterprise lists — roughly 10-20 percentage points above what a single-source provider (Apollo, Hunter, Lusha) returns on the same lists. Phone hit rates are lower and vary more by region — EU direct mobile coverage is strong; accuracy in APAC and LATAM is more variable.
Not anymore for LinkedIn. FullEnrich removed LinkedIn functionality from its Chrome extension on June 16, 2024, when LinkedIn updated its scraping policies. The extension still exists but no longer enriches LinkedIn or Sales Navigator profiles. The current workflow is CSV export from LinkedIn → upload to FullEnrich → download results. Competitors like Lusha and Kaspr still offer working LinkedIn Chrome extensions if real-time in-browser enrichment is critical to your workflow.
Pick FullEnrich if your problem is purely 'I have a list of contacts and I need more verified emails and mobile numbers than my current provider is finding.' It's simpler, cheaper for pure enrichment, and faster to set up. Pick Clay if you also need to run AI research on accounts, apply conditional routing logic, or build a multi-step enrichment-to-sequencer pipeline. Clay uses FullEnrich as one of its 100+ provider options — many teams run both, with Clay orchestrating the workflow and FullEnrich handling the waterfall enrichment column.
Not natively as of May 2026. FullEnrich has native HubSpot and Pipedrive integrations. Salesforce integration has been on the public roadmap but wasn't live at the time of writing. Teams using Salesforce as their CRM can connect FullEnrich via Zapier or Make with a modest workflow setup — inbound contact created in Salesforce triggers enrichment via Zapier, results written back to custom fields. It works but adds operational overhead compared to the native HubSpot path.
For email-only enrichment at moderate volume (up to 500 contacts/month), yes — $29/month with a free trial is hard to argue against. The pay-per-success model means zero wasted spend. For phone-heavy workflows at small scale, the economics break: 50 phone lookups per month for $29 doesn't justify it versus doing outreach through a tool that includes data (Apollo) or paying for individual LinkedIn Sales Navigator InMails. The sweet spot for FullEnrich is outbound teams of 2-10 reps doing 200-800+ email enrichments per month who've already hit the ceiling on their sequencer's native data quality.
It depends on what you need beyond enrichment. Clay for complex waterfall + AI workflows. Apollo.io if you also need a prospecting database and email sequencer. Cognism for GDPR-compliant European mobile coverage. Lusha for a solo user who wants a working LinkedIn Chrome extension. Hunter.io for email-only enrichment at very low volume. For most SMB outbound teams who just need better email hit-rates, FullEnrich is still the clearest option in its price tier.
The 80% average hit rate FullEnrich cites is a blended figure across all request types and geographies. The actual rate you see depends heavily on your ICP. US enterprise and mid-market SaaS is the sweet spot — most premium data providers built their core datasets here first, so you'll typically see 75-85% email hit rates on clean US lists. Western Europe (UK, DACH, Nordics, France) is well-covered and usually delivers 65-80%. Southern Europe, APAC and LATAM are meaningfully thinner across the whole category — realistic expectations are 50-65% for APAC contacts and lower for certain industries (government, healthcare, education) where professional data is harder to source. The practical advice: if your ICP is concentrated in a geography or segment you're not sure about, run a 100-200 contact benchmark test on a representative sample before committing to a plan. FullEnrich's free 50 credits is enough to get a directional signal on a small batch.
Nothing — you don't pay. The credit system only deducts when FullEnrich returns a verified result. A failed waterfall (where all 15-20+ providers come back empty) costs zero credits. The one exception to watch: catch-all domain emails. FullEnrich considers these a successful find and charges a credit, because the SMTP check confirms the domain accepts mail. But a catch-all email carries higher bounce risk than a verified individual mailbox, since the server accepts anything addressed to that domain. If your list has a lot of enterprise or legacy-industry domains that run catch-all mail servers, apply a secondary verification pass (tools like Neverbounce or ZeroBounce can flag catch-alls) before loading them into your sending sequence.