Read the Digital360 case study“Their approach toward target companies has always been professional, effective, and never intrusive.”
Every part of the engine
We build the Clay tables that find your buyers, enrich them cheapest source first and feed the campaign that books the call.
Growth Cab is a Clay Enterprise Partner. Clay sits in the middle of the tools we run every day
ClayEnterprise Partner
InstantlyCertified Expert
SmartleadCertified Partner
HubSpotSolutions Partner
SalesforcePartnerClient lists that run through our Clay workspace
A waterfall asks one provider at a time and stops at the first answer. The order decides the bill, so the provider that costs us nothing goes first. This is one real run from our workspace.
Prospeoour key45found, at 0 Clay credits96 rows asked, 45 emails found

Same 600 leads, 8 contact databases: Prospeo marked only 1 dead address as valid, and on our own key it costs zero Clay credits. Prospeo sponsored the test. See the full results
A signal run from our own outbound, start to finish. Every company that fails a check leaves before the paid enrichment columns, so it never reaches them.
A Clay consultant decides which columns run, on which rows, in what order, and where the results go. Switch the table to a typical build to see where the credits go.
The accounts your sales team wants, with the fit rules they approve.
Hiring, new leaders and funding, so outreach starts when a buyer has a reason. Which ones work
The people who sign inside each account. How we build a list
Your Clay tableBuilt by Growth CabDuplicates, customers and off-target accounts leave first, before any paid column.
Enrichment runs on every row, duplicates and current customers included.
Mobiles and work emails, cheapest source first, the next one only on misses.
Provider order picked on day one and never checked again.
Claygent and AI columns answer what no database covers, with the source saved next to every answer.
An AI column on every row fills the gaps with guesses that look like facts.
Clean fields in HubSpot or Salesforce, every table with one named owner.


Email and LinkedIn campaigns fed straight from the table, from domains kept apart from yours. Deliverability
Every reply and signal called back and qualified, until the call is in your calendar. Outsourced SDRs
The table looks finished and feeds nothing
Three questions decide it. Answer them and we tell you what we would do in your place, even when the answer is not us.
The people who build and run the tables in our Clay workspace
Federico DonatoneFounder & CEO
Guglielmo CitterioExecutive Director
Arturo TomielloGrowth Operations ManagerA few hundred accounts from one source do not need a waterfall. Research them by hand and pick one data tool.
Your list is small enough for one person to learn Clay between other priorities. Use the free kit below to check the first tables.
Clay will run several workflows every day, enough to keep one specialist busy all year. Hire, and keep the know-how inside.
You need the tables now and nobody to run them yet. We build them, run them with our outreach and hand them over with written instructions.
Each client has a folder in our Clay workspace, with a workbook for each list and each new segment. These are clients whose lists live there, and what their programs produced.
Client folders
Read the Digital360 case study“Their approach toward target companies has always been professional, effective, and never intrusive.”
Read the Airbag Studio case study“The quality of the opportunities generated also exceeded my expectations.”
400+ B2B clients since 2022 10,000+ qualified opportunities opened 23% average close rate $500M+ pipeline generated. All 26 case studies
The checks we run on any Clay workflow before it scales, ours included, with a practice table to import into a scratch workspace. Free, no sign-up.
Short answers. The first call covers the rest, with your own tables on the screen.
Book a callA Clay consultant designs, builds and maintains Clay workflows: account lists, enrichment waterfalls, AI research and the connection to your CRM or outreach tools. At Growth Cab every table feeds a live campaign or your CRM, with one named owner, for B2B tech companies selling contracts of $50,000 or more.
Either. In yours, credits bill to your Clay account and everything stays where your team works. In ours, Prospeo runs first on our own key at zero Clay credits, and the finished lists go to your CRM or a shared sheet. You keep the tables, the logic and the written instructions either way.
Usually, yes. The biggest saving comes from stopping enrichment on rows nobody was going to work: duplicates, current customers and accounts outside your fit rules. Then comes the waterfall order, with the cheapest source that covers your market first. One of our runs took 302 companies to 96 decision makers with 93 mobiles and 91 verified emails for about 550 Clay credits.
A column that asks several data providers for the same field, one after another, and stops at the first one that finds it. The order sets the cost. In our work email waterfall Prospeo goes first and found 45 of 96 emails in one run; the other providers only saw the rows it missed.
A company this size rarely keeps a full-time GTM engineer busy. The usual answer: a consultant builds the first workflows and hands them to the person on your team who will run them, with written instructions. If your list is a few hundred accounts, one contact database may be enough.
Five questions. Will you build in our workspace? Can you show a table you built that feeds a live campaign? How do you decide the order of the waterfall? What does one accepted record cost in credits, counting the rows you throw away? What do we keep when the work ends? Our answers: yes, or in ours; the table at the top of this page; cost and coverage for your market; divide the credits by the records you keep; every table, its logic and written instructions.
Not always. If your list is small and each deal is large, a waterfall is overhead, and one contact data tool from our GTM Tools page may be enough.
Yes, where a data provider has no answer: what an account sells, who it sells to, who owns the decision. We ran 30,400+ AI research steps in our workspace between June and September 2026. AI steps run after the fit check, keep the source next to every answer and send doubtful rows to a person.
Yes. Our SDRs work the accounts your tables surface by phone, email and LinkedIn until a qualified call is in your calendar, and emails go out from sending domains kept apart from your company domain. See outsourced SDR services and our email deliverability consultant page.
B2B tech companies past product-market fit, selling contracts of $50,000 or more, in the US and Europe. Growth Cab is a Clay Enterprise Partner, founded in 2022 by Federico Donatone and Lorenzo Asnaghi. More on the About page.
Show us your tables on the first call. We tell you what to keep, what to cut and whether you need Clay at all. If we cannot help, we say so.
Or write to success@growthcab.com
