Waterfall email enrichment: up to 10 providers, verified work emails and direct dials — pay only when we find one.
The waterfall email enrichment tool for B2B lists. Upload names and domains and Coldcast cascades up to 10 data providers until a verified work email comes back, verifies every hit (syntax, MX, SMTP mailbox, catch-all), cleans the catch-alls, and charges 1 credit only when an email is found — 99%-valid results, a typical 90-95% email match on B2B lists, no subscription, credits never expire. Free trial with 50 enrichment credits, no card.
Bulk CSV in. Verified work emails and direct dials out.
Drop in a sheet of names and domains — Coldcast runs the whole cascade, verifies every hit and bills only on finds.
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Upload your list
A CSV or XLSX with first name, last name and a domain — that’s all the waterfall needs to start. Or send a list straight from the Sales Navigator, LinkedIn, Apollo or ZoomInfo scrapers in the same account.
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Map your columns
Supports website_one and website_two columns for contacts with multiple domains, so a second company domain is tried before a row is given up on.
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Waterfall across up to 10 providers
Each contact cascades source after source, in sequence, and stops at the first verified hit — no redundant lookups, no single-database blind spots.
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Verify before billing
Syntax, MX, SMTP mailbox check and catch-all detection run on every hit; risky catch-all addresses are tested and filtered out.
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Pay only when found
You’re charged 1 credit only for emails that come back 99% valid — never for bounces, unknowns or misses. A row with no email found costs 0.
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Sync to your stack
Download a clean, deduplicated CSV or Excel (XLSX) file, or push enriched rows to HubSpot, Salesforce, Instantly, Smartlead, Lemlist or Google Sheets.
The email enrichment tool that cascades up to 10 providers and bills only on finds.
Match rates a single database can’t touch, verified before you pay, at a price that undercuts the subscription waterfalls.
Up to 10 providers, one cascade
Each contact runs through up to 10 data providers in sequence and stops at the first verified email — coverage comes from the chain, not from one database.
99%-valid results
Verified deliverable — not a “best guess” address.
Verified before you’re billed
Syntax, MX, SMTP mailbox check and catch-all detection run on every hit before a credit is charged.
Catch-all cleaning
Separates safe-to-send catch-alls from the risky ones, which keeps bounces low and protects your sender reputation.
Pay-per-find billing
1 credit only when a verified email is found; a miss costs 0 — no spend wasted on bounces, unknowns or duplicates.
High email find rate
A typical 90-95% email match on B2B lists, because the cascade keeps searching where a single provider is weak.
Direct dials where available
Where a provider has a direct-dial phone, it comes back alongside the verified work email so you can run phone plays too.
Bulk CSV/XLSX enrichment
Upload a CSV or XLSX of first name, last name and domain; get a clean, deduplicated file back with the enriched columns added.
Multi-domain columns
website_one and website_two supported out of the box.
No subscription, credits never expire
$30 per 10,000 enrichment credits, pay-as-you-go, no seats — 3x more affordable than the big tools, and the balance waits until you need it.
Sync to HubSpot, Salesforce & more
Push enriched rows to HubSpot, Salesforce, Instantly, Smartlead, Lemlist or Google Sheets, or export CSV/XLSX.
Scrape, enrich, verify in one account
Sales Navigator, LinkedIn Search, Post Engagers, Apollo and ZoomInfo scrapers feed the waterfall with shared credits — no bring-your-own-list required.
Single-source database vs subscription waterfall vs Coldcast.
Why GTM teams, SDRs and agencies move their waterfall to Coldcast.
Accuracy you can send on
Catch-all cleaning plus 99% validity means far fewer bounces and a sender reputation that stays healthy.
You only pay for wins
1 credit per found email, 0 for a miss — never per row attempted.
Coverage where one provider is weak
A single database is thin in some regions, industries and seniorities; the cascade keeps searching across up to 10 providers.
No waterfall to build
No Clay tables, n8n flows or provider subscriptions to stitch together — the cascade is pre-built in one account.
No subscription, no seats
$30 per 10,000 enrichment credits, pay-as-you-go, and credits never expire.
Drops into your workflow
Export CSV/XLSX or sync to HubSpot, Salesforce, Instantly, Smartlead, Lemlist and Google Sheets — and scraped lists flow in from the same account.
Questions, answered.
A CSV or XLSX with first name, last name and a domain. We also support website_one and website_two columns for contacts with multiple domains. Lists from the Coldcast Sales Navigator, LinkedIn, Apollo and ZoomInfo scrapers can go straight into the waterfall without re-uploading.
You’re charged 1 credit only for emails that verify at 99% confidence — never for catch-alls, unknowns or bounces. A row where no provider returns a verified email costs 0.
Yes — every catch-all is tested, and the risky ones are filtered out before a credit is charged.
The waterfall cascade plus catch-all cleaning produces 99%-valid results and match accuracy most teams simply can’t get from a single provider.
Yes — push enriched contacts straight into HubSpot, Salesforce, Instantly, Smartlead, Lemlist or Google Sheets, or download a clean CSV or Excel file.
Waterfall enrichment queries multiple data providers in sequence for each contact, moving to the next source only when one doesn’t return a verified result. Cascading providers this way finds a valid email or direct dial for far more of your list than any single provider can.
Up to 10. Each contact is sent through the providers in sequence and the cascade stops at the first verified email, so you are never charged for redundant lookups. If no provider returns a verified email, you pay nothing for that row.
$30 per 10,000 enrichment credits. It costs 1 credit per found email and 3 credits per domain enriched, and a row with no email found costs 0. Credits are pay-as-you-go, never expire, and there is no subscription and no per-seat fee. The free trial includes 50 enrichment credits with no card required.
A single database has coverage gaps by region, industry and seniority, so a cascade across up to 10 providers finds emails a single source misses. With Coldcast you can also export a whole Apollo or ZoomInfo search to CSV without spending their export credits, then run the rows through the waterfall to fill the gaps, all from one account with shared credits.
No. The cascade is pre-built. You upload a CSV or XLSX with first name, last name and domain, Coldcast runs the providers in sequence, verifies the hits and returns the file. There are no tables to build, no provider accounts to connect and no API keys to manage.
On typical B2B lists the waterfall reaches a 90-95% email match, with direct-dial phones returned where a provider has them. Results vary by geography and seniority, which is exactly why a cascade beats any single provider.
Every email the waterfall returns is verified before it is billed: syntax, MX, SMTP mailbox check and catch-all detection, with risky catch-alls filtered out. You only send to addresses that passed, which keeps bounces low and your domain healthy.
Enriched rows export as clean, deduplicated CSV or Excel, or sync to HubSpot, Salesforce, Instantly, Smartlead, Lemlist and Google Sheets.
Yes. The Sales Navigator, LinkedIn Search, Post Engagers, Apollo and ZoomInfo scrapers, the waterfall enricher, email verification and domain enrichment all live in one Coldcast account with shared credits, so a scraped list can go straight into enrichment without re-uploading elsewhere.
If your list already has email addresses and you only need to know which are safe to send, run Coldcast Email Verify at 1 credit per email ($10 per 10,000). Use the waterfall when rows are missing an email or you want a verified replacement for a doubtful one.
Waterfall enrichment finds a verified work email, and a direct dial where available, for a named person at a domain: 1 credit per found email. Domain enrichment turns a company domain into firmographics, technographics and verified contacts: 3 credits per domain. Both run from the same account with shared credits.
Yes. The free trial includes 50 enrichment credits, plus 50 verification credits and 100 scraping leads, with no card required. Because a miss costs 0, those 50 credits go entirely to found emails.
Run your list through the waterfall — 50 enrichment credits free, no card.
Upload a CSV of names and domains, get verified work emails and direct dials back, and pay 1 credit only when an email is found — no subscription, credits never expire.