Clay agencies
40 agencies in the index build on Clay. Ranked by the evidence on record, the first three are Hypergen (HQ not published, from $5,000 a month), SalesCaptain (London, UK, from $3,500 a month) and Skydog Ops (New York, US, from $10,000 a month). Clay is a data enrichment and workflow tool that pulls from many data providers into one table and pushes the result into sequencers and CRMs. Clay agencies build signal-based lists and workflows the client can keep, and Clay runs a partner program that lists certified agencies by tier. 22 of the 40 publish a monthly minimum, from $2,500 to $10,000, with a median of $5,000. 1 offers pay-per-meeting pricing and 1 offers pay-per-lead; the rest work on a retainer or do not say. The services most often offered here are GTM engineering, cold email and intent data. 11 have a Clutch or G2 rating on file with the date it was read. Ask whether the workspace and its data stay with you when the engagement ends.
| # | Agency | HQ | Stack | From (monthly) | Model | Proof | Badges |
|---|---|---|---|---|---|---|---|
| 1 | Hypergen↗ Lite plans from $6.5k/mo with 6-month minimum also reported | Not published | Clay, HubSpot | $5,000 | Retainer | Clutch5.0 (15) | Clay NativeVerified DeliverabilityEditor's PickTop Outbound Agency US 2026 |
| 2 | SalesCaptain↗ ~$3.5k/mo commonly cited; signal-based outbound | London, UK | Clay, HubSpot | $3,500 | Retainer | Clutch4.7 (22) | Clay NativeEditor's PickTop Outbound Agency Europe 2026 |
| 3 | Skydog Ops↗ Clay-to-CRM signal ingestion and scoring | New York, US | Clay, HubSpot | $10,000 | Retainer | G25.0 (165) | Clay Native |
| 4 | FullFunnel↗ | Boston, US | Clay, HubSpot | $5,000 | Retainer | G24.7 (72) | Clay Native |
| 5 | demandDrive↗ Clay Studio Partner; pairs Clay builds with outsourced SDRs | Waltham, US | Clay, HubSpot | $5,000 | Retainer | G24.6 (69) | Clay NativeSDR Pod |
| 6 | DevCommX↗ $6.5k/mo per service reported | Not published | Clay, Smartlead, HubSpot | $6,500 | Retainer | n/a | Clay Native |
| 7 | Groflo↗ Forward-deployed SDRs on top of Clay engine; quarterly terms | Miami, US | Clay, Instantly, Smartlead | $6,000 | Retainer | n/a | Clay NativeSDR Pod |
| 8 | Growth Alliance↗ Three principals; programs from $10k/mo, smaller work from $2.5k | Prague, CZ | Clay, HubSpot | $2,500 | Retainer | n/a | Clay Native |
| 9 | GTMBase↗ | Berlin, DE | Clay, HubSpot | $5,000 | Retainer | n/a | Clay NativeTop Outbound Agency DACH 2026 |
| 10 | OneGTM↗ Done-with-you GTM engineering + advisory | US | Clay, Instantly | $5,000 | Retainer | n/a | Clay Native |
| 11 | RevenueHoop↗ RevOps + outbound campaign design | New York, US | Clay, HubSpot | $5,000 | Retainer | n/a | Clay Native |
| 12 | Rillation Revenue↗ Visitor ID + lookalike outbound; 30+ tools stack | New York, US | Clay, Smartlead | $5,000 | Retainer | n/a | Clay Native |
| 13 | The GTM Engineering Company↗ Starter $4k/mo, Growth $6k/mo; fractional GTM engineering | Not published | Clay, HubSpot | $4,000 | Retainer | n/a | Clay Native |
| 14 | Workflows.io↗ AI RevOps + ABM sprints; 3-month minimum | New York, US | Clay, HubSpot | $5,000 | Retainer | n/a | Clay Native |
| 15 | Reachly↗ 3-month minimum per Clay directory | Bangkok, TH | Clay | $5,000 | Retainer | Clutch5.0 (1) | Clay NativeTop Outbound Agency APAC 2026 |
| 16 | Arvana↗ Clay-targeted ABM with ads | Berlin, DE | Clay | $5,000 | Retainer | n/a | Clay NativeTop Outbound Agency DACH 2026 |
| 17 | Blue Modern Advisory↗ Clay-to-Snowflake reporting; regulated-industry focus | New York, US | Clay | $10,000 | Retainer | n/a | Clay Native |
| 18 | DealDeploy↗ PE deal-sourcing niche; deliverables in client-owned GitHub | New York, US | Clay, Custom | $10,000 | Retainer | n/a | Clay Native |
| 19 | LeadHaste↗ Publisher of several self-ranked listicles | Sofia, BG | Clay, Custom | $2,500 | Retainer | n/a | Clay NativeVerified Deliverability |
| 20 | mgsh↗ Two-person founder-led Clay boutique | London, UK | Clay | $10,000 | Retainer | n/a | Clay NativeTop Outbound Agency UK 2026 |
| 21 | Terra Firma↗ Weekly outbound experiments for early-stage startups | New York, US | Clay | $10,000 | Retainer | n/a | Clay Native |
| 22 | The Kiln↗ Clay-native; reported acquired by 2X | Brooklyn, US | Clay | $10,000 | Retainer | n/a | Clay Native |
| 23 | ColdIQ↗ Clay Elite Studio; remote Europe-based delivery; now also sells a GTM data API | Not published | Clay, Smartlead, Instantly, lemlist, Apollo | Ask | Not published | G22.5 (6) | Clay NativeEditor's Pick |
| 24 | Operatus↗ Salesforce/HubSpot consulting plus Clay enrichment | New York, US | Clay, HubSpot | Ask | Not published | G24.7 (29) | Clay Native |
| 25 | Nebor↗ Clay + n8n + HubSpot; 3-month minimum | Amsterdam, NL | Clay, HubSpot | Ask | Retainer | G25.0 (1) | Clay Native |
| 26 | Spring Drive↗ London + New York | London, UK | Clay | Ask | Not published | Clutch4.9 (12) | Clay Native |
| 27 | Growth Engine X↗ High-volume cold email; free test campaign; 3-month minimum | New York, US | Clay, Smartlead, Instantly | Ask | Retainer | n/a | Clay NativeVerified Deliverability |
| 28 | RevPartners↗ HubSpot Elite + Clay Elite Studio partner; RevOps-led | US | HubSpot, Clay | Ask | Not published | Clutch5.0 (1) | Clay Native |
| 29 | Novlini↗ Clay inside Attio; day-rate retainer | Paris, FR | Clay | Ask | Retainer | n/a | Clay Native |
| 30 | Strongest↗ Pay per realised meeting | FI | Clay | Per meeting | Pay-per-meeting | n/a | Clay NativePay-Per-MeetingTop Outbound Agency DACH 2026 |
| 31 | Vanderbuild↗ Retainer, project or pay-per-warm-lead | Warsaw, PL | Clay | Ask | Hybrid | n/a | Clay Native |
| 32 | Intelligent Resourcing↗ Clay + n8n routing into HubSpot | Melbourne, AU | Clay, HubSpot | Ask | Not published | n/a | Clay NativeTop Outbound Agency Australia 2026 |
| 33 | OpsLiftOff↗ Fractional RevOps with Clay enrichment | Boston, US | Clay, HubSpot | Ask | Not published | n/a | Clay Native |
| 34 | StackOptimise↗ Free trial contacting 6,000 ICP leads | London, UK | Clay, Smartlead | Ask | Not published | n/a | Clay Native |
| 35 | Understory↗ Clay Enterprise Partner; allbound model mixing paid media and outbound | Miami, US | Clay, HubSpot, Instantly | Ask | Not published | n/a | Clay Native |
| 36 | Lead Assassin↗ | Manila, PH | Clay | Ask | Not published | n/a | Clay Native |
| 37 | Scalantec↗ | Berlin, DE | Clay | Ask | Not published | n/a | Clay Native |
| 38 | Targetory↗ | Eckental, DE | Clay | Ask | Not published | n/a | Clay Native |
| 39 | ThynkGrowth↗ Remote India team | IN | Clay | Ask | Not published | n/a | Clay NativeVerified Deliverability |
| 40 | Zevenue↗ Clay TAM builds plus rep training | Toronto, CA | Clay | Ask | Not published | n/a | Clay NativeTop Outbound Agency Canada 2026 |
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Related pages
Same stack, by region
Parent: All agencies
Questions
- How much does a Clay agency cost?
- 22 of the 40 publish a monthly minimum, from $2,500 to $10,000, with a median of $5,000. Setup fees and minimum terms vary, so ask for both before comparing monthly prices.
- Retainer or pay-per-meeting?
- A retainer buys an agreed scope each month and suits a defined ICP with at least three months of runway. Pay-per-meeting moves the risk to the agency and suits offers with a short sales cycle. On this page, 1 agency offers pay-per-meeting pricing and 1 pay-per-lead.
- How long until results?
- New sending domains need two to three weeks of warm-up before volume goes out, and list building runs alongside it. Most agencies quote first meetings in weeks four to eight.
- Does the stack matter?
- 40 of the 40 build on Clay and 17 work inside HubSpot. Ask who owns the sending domains, the data and the workflows when the engagement ends; some agencies hand them over and some keep them.