Best Clay agencies (2026)
Updated October 11, 2026. Clay directory and vendor sites read October 11, 2026.
Clay keeps a public Solutions Partner Directory at clay.com/experts. On October 11, 2026 it listed 186 partners in four tiers: 6 Elite Studio, 13 Studio, 23 Advanced Artisan and 144 Artisan. This page takes the ten agencies that list pages about GTM engineering name most often and checks each one against that directory. Eight of the ten are in it and two are not.
Sales.co publishes this page. Sales.co is not in Clay's directory and is not a Clay partner. It uses Clay and Claude inside software it built itself, and its package is outreach run for you. It is in the last row of the table for that reason.
The table is ordered the way Clay's directory orders its tiers, top tier first. Inside a tier, the agency named in more of the 14 list pages comes first.
| Agency | Clay directory tier | What its own site says | Published price | Minimum term | Source |
|---|---|---|---|---|---|
| ColdIQ | Elite Studio (as Frontal AI) | Its Clay directory entry, under the name Frontal AI, says "1 of 5 Clay Elite Studio Partners worldwide"; the directory showed six on the read date | Not published | 90-day initial term | coldiq.com/implementation |
| Growth Engine X | Elite Studio | Quotes a Clay engineer calling its founder's workspace Clay's most used | Not published | Not stated | growthenginex.com |
| RevPartners | Elite Studio | "Elite Studio Clay partner" and Elite HubSpot Solutions Partner | From $12,900/mo; $25,000 fixed-price builds | 6-month initial term (retainer tiers) | revpartners.io/clay-agency |
| The Kiln | Elite Studio | Says its team includes early Clay employees | Not published | Not stated | thekiln.com |
| demandDrive | Studio | Says it is a "certified Clay Studio Partner" | Not published | Not stated | demanddrive.com/services/revenue-operations/clay-services |
| SalesCaptain | Advanced Artisan | Calls itself a "Clay-certified agency" and "#1 Enterprise Clay Partner" | Not published | Not stated | salescaptain.io |
| Understory | Advanced Artisan | Says it is "an Enterprise Clay Partner and one of the first five Clay Experts certified" | Not published | 6-month minimum (4 for smaller companies) | understoryagency.com |
| The GTM Engineering Company | Artisan | Builds Clay tables and hands them over; no partner claim on the pages read | From $5,000/mo | Monthly, typical engagement 3 to 6 months | gtm-engineering.io |
| DevCommX | Not listed | Lists Clay in its stack; no partner claim on the pages read | Not published | Not stated | devcommx.com/faq |
| Earleads | Not listed | No Clay claim on the page read | Not published | Not stated | earleads.com |
| Sales.co | Not listed | Uses Clay and Claude inside software it built itself; not a Clay partner | $5,500/mo flat | Month-to-month | sales.co/gtm-engineering |
Clay's top two tiers in full
The directory's top tier, Elite Studio, had 6 partners: Go Nimbly, The Kiln, RevPartners, Growth Engine X, FullFunnel and Frontal AI. The next tier, Studio, had 13: CS2, Levver, Growth Today, Skydog Ops, Enablement, Saleslift Studio, LeadFabric, OneThousandPieces, Peakora, Workflows.io, LeanScale, NewEdge Growth and demandDrive. Go Nimbly and FullFunnel are in the top tier but are not among the ten most-named agencies compared here.
By tier
- Elite Studio: ColdIQ (listed as Frontal AI), Growth Engine X, RevPartners, The Kiln.
- Studio: demandDrive.
- Advanced Artisan: SalesCaptain, Understory.
- Artisan: The GTM Engineering Company.
- Not in the directory: DevCommX, Earleads, and Sales.co.
Where an agency's wording and the directory differ
Three agencies describe their Clay status in words the directory does not use. SalesCaptain's site says "#1 Enterprise Clay Partner" and Understory's says "an Enterprise Clay Partner and one of the first five Clay Experts certified"; the directory lists both in the Advanced Artisan tier and has no tier called Enterprise. Clay may use that word for a program the directory does not show, so ask the agency what it refers to. Frontal AI's directory entry says "1 of 5 Clay Elite Studio Partners worldwide", and we counted 6 in that tier on the day we read it. RevPartners ("Elite Studio Clay partner") and demandDrive ("certified Clay Studio Partner") use the directory's own tier names.
ColdIQ is listed as Frontal AI
ColdIQ does not appear in the directory under its own name. The entry for Frontal AI (frontal.so) says "ColdIQ Agency became Frontal; same team, sharper focus", and Frontal's site gives "ColdIQ Agency" as an alternate name. coldiq.com still has a managed-service page, and its home page now sells a marketplace of data providers on credits. More on Sales.co vs ColdIQ.
Which one for which job
- A Clay build inside HubSpot at a fixed price: RevPartners. $25,000 for a 90-day Clay Implementation, or $12,900+ a month for an ongoing service.
- A custom engineering project: The Kiln. Its site lists CRM data cleaning, account scoring, AI research automation and inbound lead enrichment, and says its engineers work on a few clients at a time. No price is published.
- Cold email at volume: Growth Engine X. Up to 5,000 emails a day per client and a free test campaign for companies that qualify.
- Clay tables built in your CRM and handed over, at a published price: The GTM Engineering Company, from $5,000 a month.
- Clay next to outsourced SDRs: demandDrive.
- Clay next to paid media and LinkedIn content, for B2B SaaS: Understory, with a six-month minimum for most clients.
- Outreach run for you on email, calls, ads and LinkedIn, without a Clay partner badge: Sales.co, $5,500 a month, month-to-month. The client owns the data, with dashboards and exports.
How this was made
We read every entry in Clay's Solutions Partner Directory on October 11, 2026 (186 entries) and looked up the ten agencies by name and website. The "own site" column quotes or paraphrases each agency's own pages, read the same day. The ten agencies are the ones named most often across 14 list pages that ranked on Google for GTM engineering agency queries; three of those lists are about Clay agencies specifically. Tiers change, so check the directory before you buy. Report a change: contact.
Sources
- Clay Solutions Partner Directory: clay.com/experts, read October 11, 2026 (186 partners listed).
- Sales.co: sales.co/gtm-engineering, read October 11, 2026.
- SalesCaptain: salescaptain.io, salescaptain.io/clay-agency, salescaptain.io/outbound-sales, read October 11, 2026.
- ColdIQ: coldiq.com/implementation, coldiq.com, frontal.so, read October 11, 2026.
- Understory: understoryagency.com, understoryagency.com/gtm-engineering, read October 11, 2026.
- Growth Engine X: growthenginex.com, read October 11, 2026.
- RevPartners: revpartners.io/clay-agency, revpartners.io/pricing, read October 11, 2026.
- DevCommX: devcommx.com/faq, devcommx.com, read October 11, 2026.
- The GTM Engineering Company: gtm-engineering.io, gtm-engineering.io/services, read October 11, 2026.
- demandDrive: demanddrive.com/services/revenue-operations/clay-services, demanddrive.com/services/outsourced-sales-services/outsourced-sales-development, read October 11, 2026.
- The Kiln: thekiln.com, read October 11, 2026.
- Earleads: earleads.com, read October 11, 2026.
Related pages
Best GTM engineering agencies (2026) · GTM engineering agency cost · Sales.co GTM engineering
Sales.co vs SalesCaptain · Sales.co vs ColdIQ · Sales.co vs Understory · Sales.co vs Growth Engine X · SalesCaptain alternatives · ColdIQ alternatives · Understory alternatives · Growth Engine X alternatives
GTM engineering agency for B2B SaaS · GTM engineering agency for startups · Agency vs in-house GTM engineer · Outsourced GTM engineering · Month-to-month GTM engineering agencies · Signal-based outbound agencies · Multichannel outbound agencies · Account-based outbound agencies
FAQ
What is the best Clay agency?
Clay's own directory is the place to start: on October 11, 2026 it listed 186 partners and put 6 in its top tier, Elite Studio: Go Nimbly, The Kiln, RevPartners, Growth Engine X, FullFunnel and Frontal AI. Which one fits depends on the job. RevPartners sells fixed-price Clay builds for HubSpot, The Kiln takes custom engineering projects, and Growth Engine X runs cold email at volume.
Is Sales.co a Clay partner?
No. Sales.co is not in Clay's Solutions Partner Directory. It uses Clay and Claude inside software it built itself to find signals, build and research the account list, and write the emails. If you want an agency to build Clay tables in your own Clay workspace, pick a partner from the directory.
How many Clay partners are there?
Clay's Solutions Partner Directory listed 186 partners on October 11, 2026: 6 Elite Studio, 13 Studio, 23 Advanced Artisan and 144 Artisan.
How much does a Clay agency cost?
Of the ten agencies on this page, two publish a price: RevPartners (from $12,900/mo; $25,000 fixed-price builds) and The GTM Engineering Company (from $5,000/mo). SalesCaptain's Clay agency page says monthly retainers in the market run from roughly $3,000 to $15,000. More on GTM engineering agency cost.