Waterfall B2B contact enrichment — verified emails and phones
Verified: · By AIStack Editorial
FullEnrich finds verified B2B emails and phone numbers by 'waterfalling' across many data providers, so hit-rates beat any single source. It's the ideal upstream partner to a cold-email tool like Instantly — better data in, better campaigns out. Pricing is transparent with a real free tier; just watch that phone lookups cost 10x an email credit.
[DRAFT — verdict pending hands-on retest of the current product version]
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| Plan | Price | Best for |
|---|---|---|
| Free | $0 | 50 credits/mo, indefinite |
| Starter | ~$29/mo | ~500 credits/mo (cheaper annually) |
| Pro | ~$55/mo | ~1,000 credits/mo |
| Scale / Enterprise | Custom | High-volume, quoted |
Verified 2026-07-10: genuine free tier (50 credits/mo). Mobile-phone lookups cost 10 credits vs 1 for email; failed lookups don't consume credits. Confirm current pricing at fullenrich.com/pricing before a refresh.
FullEnrich solves a specific, expensive problem in outbound: bad contact data. Send cold email to stale or unverified addresses and you tank deliverability and waste sends. FullEnrich fixes the input side by waterfalling — querying many data providers in sequence until it returns a verified email or mobile number, rather than trusting one database.
The ideal user is an outbound sales or SDR team, or an agency, that already sends outreach and needs higher-quality contacts feeding it. If you use a cold-email tool like Instantly, FullEnrich is the upstream half of the stack: it finds the people, Instantly reaches them.
The product is focused and does enrichment well:
The combination of multi-source accuracy plus transparent, forgiving pricing is what sets it apart in a category known for opaque contracts.
FullEnrich is freemium and credit-based. The free tier gives 50 credits a month indefinitely — enough to test hit-rates on your own list. Paid plans (from ~$29/mo) raise your monthly credits, and annual billing lowers the effective price. The one gotcha to plan for: an email lookup is 1 credit, but a mobile-phone lookup is 10 credits, so a phone-heavy workflow burns credits far faster than an email-only one.
| Plan | Price | Credits/mo |
|---|---|---|
| Free | $0 | 50 |
| Starter | ~$29/mo | ~500 |
| Pro | ~$55/mo | ~1,000 |
| Scale / Enterprise | Custom | High volume |
Two honest points. Phone-credit cost: at 10 credits per mobile lookup, plans deplete quickly if direct dials are your priority — factor that into which tier you buy. It's one layer of the stack: FullEnrich finds and verifies contacts, but it doesn't send anything — you still need an outreach tool like Instantly to actually run campaigns. Used together, they're a strong pairing; used alone, FullEnrich is a data source rather than a complete outbound solution.
Instantly is a cold-outreach powerhouse: unlimited sending accounts, built-in deliverability warmup and a large B2B lead database in one platform. It's a strong fit for sales teams and lead-gen agencies sending real volume. The catch is a modular pricing structure that can cost far more than the advertised entry price once you add leads and CRM.
Instead of relying on one data provider, FullEnrich queries several in sequence until it finds a verified email or phone. This 'waterfall' approach meaningfully raises hit-rates versus any single database, which is the core reason teams use it.
Yes — a genuine free tier with 50 credits a month, indefinitely. Paid plans start around $29/mo for roughly 500 credits, with credit rollover that's unusually forgiving in this category.
Mobile-phone lookups consume about 10 credits versus 1 for an email, because verified mobile data is harder and pricier to source. If phone numbers are a priority, budget your credits accordingly.
They're a stack, not rivals. FullEnrich supplies the verified emails and phones; a tool like Instantly sends the outreach. Better data upstream means better deliverability and reply rates downstream — many teams run the two together.
Because it waterfalls across multiple sources and verifies results, accuracy is typically higher than a single provider — and failed lookups don't cost credits. No enrichment tool is perfect, but the multi-source approach is designed to maximise valid hits.
FullEnrich
