Waterfall Email Enrichment Cost Calculator
Get the best coverage at the lowest cost.
Find the optimal provider order, what each step really adds, and the point where adding more providers stops being worth it.
Benchmark rates and prices updated August 2026.
Your setup
100 to 10,000,000
- OrbiSearchcharges per attemptper 1k attempts, finds (benchmark default, edit it)
Best waterfall for your inputs
Each color is one provider's contribution, in order. Thin slices are what later steps add; the hatched band is what none of your providers find.
| # | Provider | Billing Model | Rows submitted | Emails found | Step cost | Cost per 1k new emails | Coverage so far |
|---|---|---|---|---|---|---|---|
| 1 | OrbiSearch | charges per attempt | 100,000 | 79,200 | $207.00 | $2.61 | 79.2% |
| ↳20,800 rows remain unfound | |||||||
Rates are valid-emails-found rates from our email finder benchmark. Emails found marked estimated have no measured overlap data for that provider, so we assume a small unique contribution. Edit any number you disagree with. Prices as of Aug 2026.
How the model works
A waterfall sends each row to your cheapest provider first, then passes only the unfound rows down the chain. Order and cutoff decide most of your cost.
Cheapest per found email goes first
Each provider's true cost is its cost per found email: the sticker price for tools that charge per found email, price divided by find rate for tools that charge per attempt.
Each added provider finds fewer new emails than the one before, at a higher cost per email
Providers overlap heavily, so step two only gets credit for emails step one missed. We model that overlap from our benchmark, measured where we have it.
Know when to stop
When a provider's cost per added email climbs to several times your blended cost, it is buying you almost nothing. The calculator draws that line for you.
Where the numbers come from
Find rates marked as benchmark come from our published email finder benchmark: the same contact list run through every tool, with every found email re-verified live, so the rates are validated find rates, not vendor claims. Rates for tools we haven't benchmarked are estimates, clearly marked, and editable like everything else.
For every combination of tools we benchmarked, we use the overlap we measured on the same contacts. For everything else we use a conservative estimate, and total coverage can never exceed the best combined result we measured (about 90%): no stack finds emails that do not exist. The minimum credited to unbenchmarked tools matches the median unique contribution we measured in our benchmark.
Prices are list prices as of August 2026 and are editable in the calculator. Pay different rates? Edit any price and the results update.
Start your waterfall with the cheapest step
A free OrbiSearch account includes 100 credits to find and verify work emails, so you can test the first step of your waterfall on your own list today.
Sign up freeFrequently Asked Questions
Common questions about waterfall email enrichment: what it is, how to order providers, what it costs, and what find rates to expect.