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Pipe & Signal

Account list and enrichment waterfall

Get a clean ICP list with the right people and verified emails

We turn your ICP into rules, build the account list, then run a waterfall across data sources until each contact has a verified email.

Send a scoping brief

Mfrom $5,000 · £4,000

Indicative price. You get a fixed quote after the brief.

Trigger

A new market, a new segment, or a CRM full of stale contacts.

How the account list and enrichment waterfall workflow runs

  1. 01

    List

    ICP rules

    Your ICP becomes rules in code: size, market, tech stack, stage.

  2. 02

    List

    Account list

    Jobs pull matching accounts and remove the ones already in your CRM.

  3. 03

    Enrich

    Find people

    The waterfall finds people in the roles you target.

  4. 04

    Enrich

    Check emails

    A verifier checks each email before it enters the database.

  5. 05

    Report

    Load

    Accounts and contacts load to the CRM, with a source for each field.

Tools

  • Apollo, Crustdata or ZoomInfo for accounts
  • LeadMagic, Apollo or Clay waterfalls for people and emails
  • Postgres as the store
  • HubSpot, Salesforce or Attio as the CRM

Data in

  • Your ICP description
  • Target roles and seniority
  • Your current CRM export, to remove duplicates

Data out

  • An account table you can re-run
  • Contacts with verified emails
  • A source and a cost for each field

You own

  • The ICP rules
  • The waterfall order and its cost per hit
  • The database

Code or Clay?

Clay waterfalls are fast to set up for a one-off list. For a list you re-run each week, code calls each vendor direct, with no per-action platform fee. The diagnostic compares both costs at your volume.

See the GTM tech stack by layer and Clay vs Claude Code.

Price: size M, from $5,000

Medium: One workflow with several sources, a scoring step and a CRM write-back.

From $5,000 · £4,000 as a single build. Indicative price. You get a fixed quote after the brief.

GTM engineering pricing by size

You can buy this workflow alone at size M. It is also part of this larger build:

Seed to Series B B2B SaaS

L

Owned lead machine

All 7 steps, from list to report, built as code in your own repo.

from $12,000£9,600 per build

  • List, enrichment, signals, AI research, routing, sending and reporting.
  • A repo in your GitHub with scheduled jobs and a database.
  • Direct calls to vendor APIs, with no per-row platform fee from us.
  • Tests, a cost log for every run, and a runbook.

Outcome You own a working lead machine and the code that runs it.