A Clay agency (sometimes called a "Claygency") is a service provider that builds, manages, and optimises Clay workflows for B2B companies: data enrichment, account scoring, signal detection, outbound automation, and CRM integration. The best Clay agencies leave behind documented, client-owned systems. The worst leave behind a dependency and a monthly invoice.
Pricing disclaimer: Agency pricing changes frequently. Figures below are accurate as of October 2026, sourced from published pricing pages, Clutch profiles, and public materials. Where pricing is not published, we state "Not public." Contact each agency directly for a current quote.
Key Takeaways
- Clay has an official partner directory at clay.com/experts with 186 partners across four tiers. Elite Studio (6 agencies), Studio (13), Advanced Artisan (23), and Artisan (144). Verify any agency's claimed tier there before signing.
- Two of the six Elite Studio Partners were acquired in 2026. The Kiln by 2X (January) and RevPartners by Walker Sands (June). The Clay agency space is consolidating.
- "Claygency" is a community term, not an official Clay designation. Clay's official programme is called the Solutions Partner Program.
- The most common failure mode is automating before the ICP is defined. Beautiful Clay workflows that reach companies who will never buy burn credits and domain reputation at scale.
- Advanced Client (our firm) uses Clay as core infrastructure in every engagement. We are not positioned as a "Clay agency" but as a GTM engineering consultancy where Clay is a central tool. We design the signal model, build the workflows, and hand over the entire system by day 120. Founder-led delivery, 8 figures+ of pipeline across 30+ B2B brands.
Why We Wrote This and Our Disclosure
Advanced Client is a GTM engineering consultancy based in London. We use Clay daily across every client engagement to power enrichment, signal detection, and account scoring. We are not a Clay-only agency: Clay is one component of the broader GTM system we design and install.
Disclosure: Advanced Client appears on this list. To counterbalance that bias, every agency receives the same structure, we verify partner tiers against Clay's official directory, and we name the specific situations where a specialist Clay agency is the better choice over us. Every fact attributed to a competitor comes from their public materials as of October 2026.
If we got something wrong about your agency, email tom@advancedclient.io and we will update the article.
How Clay's Partner Programme Works
Clay runs a Solutions Partner Program with four tiers. The tiers are assigned by Clay based on delivery track record; the exact criteria are not published.
| Tier | Count | What It Signals |
|---|---|---|
| Elite Studio | 6 | Highest Clay usage, enterprise-grade delivery, closest relationship with Clay |
| Studio | 13 | Established agencies with proven Clay delivery at scale |
| Advanced Artisan | 23 | Mid-tier, experienced builders with a track record |
| Artisan | 144 | Entry-level partners, newer to the programme |
Important: A partner badge belongs to the firm. Your workflows are built by a specific person. Always ask who will build your tables and whether that person stays on the engagement.
How We Evaluated
We assessed each agency across six criteria.
1. Clay partner tier (15%) Verified against clay.com/experts. Higher tiers indicate more Clay usage and a closer relationship with the platform team.
2. Implementation depth (25%) Can the agency build complex, multi-step Clay workflows: enrichment waterfalls, scoring models, signal detection, conditional routing, and CRM sync? Or do they build simple list-pull tables?
3. What you own afterwards (20%) Do workflows, tables, and enrichment logic live in your Clay workspace, or in the agency's? Does the engagement include documentation and training?
4. Proof quality (15%) Named clients with attributed pipeline or revenue rank above aggregated claims. Clutch and G2 reviews add independent validation.
5. Scope beyond Clay (15%) Clay is one tool. Does the agency also handle CRM architecture, sending infrastructure, signal strategy, and campaign execution, or do you need additional partners for those?
6. Pricing transparency (10%) Published pricing or clear ranges earn more credit than "book a call."
Comparison Table
| Rank | Agency | HQ | Clay Tier | Best For | Pricing | Proof |
|---|---|---|---|---|---|---|
| 1 | Advanced Client | London, UK | Uses Clay as core infrastructure | B2B companies that want the full GTM system, not just Clay workflows | From $5K/mo (Sprint) to $50K+ (Install) | Tier 2: named clients, attributed revenue |
| 2 | Growth Engine X | US (remote) | Elite Studio | High-volume cold email at scale | Not public | Tier 2: named clients (Clay, OpenAI, Notion) |
| 3 | Frontal | US (remote) | Elite Studio | Multi-channel GTM: outbound + ABM + paid + content | From $5K/mo, 3-month min | Tier 2: Clutch 5.0 (16 reviews) |
| 4 | The Kiln (2X) | Brooklyn, NY | Elite Studio | Outbound automation and inbound enrichment | $10K-$25K/mo | Tier 2: named clients |
| 5 | RevPartners | Nashville, US | Elite Studio | HubSpot + Clay dual architecture | $9,850-$27,000/mo | Tier 2: 1,000+ HubSpot deployments |
| 6 | FullFunnel | Boston, US | Elite Studio | Signal-driven GTM and Clay Enterprise | Not public | Tier 2: named clients |
| 7 | Go Nimbly | San Francisco, US | Elite Studio | Enterprise RevOps with Clay practice | $50K+ per project | Tier 2: enterprise clients |
| 8 | The GTM Engineering Company | Spain (remote) | Artisan | Seed-Series C needing one fractional builder | From ~$5K/mo | Tier 2: named testimonials |
| 9 | demandDrive | Boston, US | Studio | Outsourced sales with Clay-powered enrichment | Not public | Tier 3: 15+ years, 1,000+ engagements |
| 10 | Nebor | Amsterdam, NL | Listed | European B2B teams needing Clay + outbound | Not public | Tier 3: named clients |
| 11 | OneAway | US | Listed | Clay + Apify scraping workflows | Not public | Tier 3: 190+ Clay tables built |
| 12 | Peakora | DACH region | Studio | German-speaking markets | Not public | Tier 3: regional specialist |
Agency Profiles
1. Advanced Client: GTM engineering consultancy with Clay at the core
- HQ: London, UK
- Best For: B2B companies ($1M+ revenue or venture-backed) that want the full GTM system designed and installed, not just Clay workflows.
- Clay Role: Core infrastructure in every engagement. Used for enrichment waterfalls, account scoring, signal detection, and CRM sync.
- Model: Build-to-own. Three tiers: GTM Sprint from $5K/mo (3-month minimum, one channel, one ICP), GTM Engineering Install from $50K+ (full multi-channel system, 8-12 weeks), LinkedIn Ads management from $3K/mo + ad spend. Founder-led delivery.
- Key Result: m3ter: $447K closed-won, $2.4M pipeline, CPL $5,171 to $334. Verifile: 17 FTSE 100 meetings, live in 28 days. 8 figures+ total pipeline.
At a Glance
| Field | Value |
|---|---|
| Website | advancedclient.io |
| Clay Tier | Uses Clay as core infrastructure (not positioned as a Clay-only agency) |
| Type | GTM engineering consultancy |
| Best for | B2B companies that want an owned GTM system, not just Clay tables |
| Delivery model | Founder-led, built inside the client's own tools, full handover by day 120 |
| Pricing | GTM Sprint from $5K/mo. Full Install from $50K+. LinkedIn Ads from $3K/mo + spend |
What We Do
Advanced Client was founded in 2023 by Tom Grainger (CEO) and Louis Young (COO). Every engagement opens with diagnosis: sales call transcripts, CRM data, closed-won and closed-lost analysis. That work produces the ideal customer profile, a TAM of named accounts, and custom buying signals specific to the client's market.
Clay sits at the centre of the build. We use it for multi-provider enrichment waterfalls, account and contact scoring, signal detection workflows, and CRM sync. But Clay is one layer of the system. The full build includes CRM architecture, sending infrastructure (Instantly, HeyReach), LinkedIn automation, signal tools (Trigify, WhiteWhale), and reporting.
Everything is built in the client's own Clay workspace, CRM, and accounts. By day 120, the client owns every workflow, table, sequence, and playbook outright.
Evidence
| Client | Result | Source |
|---|---|---|
| m3ter | $2.4M pipeline, $7M+ influenced, $447K closed-won, 42 meetings, CPL $5,171 to $334, 4.71x ROAS | advancedclient.io case study |
| Verifile | $312K revenue, 17 FTSE 100 meetings, system live in 28 days, 100% handover | advancedclient.io case study |
| Studio X | $5.7M pipeline, 50+ opportunities, built from zero outbound | advancedclient.io case study |
| RAIN Group | 12-week build, ~15 custom buying signals, 7 tools transferred, 100% owned | advancedclient.io case study |
Strengths
- Full GTM system, not just Clay workflows. ICP, signals, CRM, sending, reporting, and handover.
- Founder-led: the people who scope the problem build the system.
- Ownership by design. Every asset lives in the client's accounts from day one.
- Custom signal work built from the client's own sales data.
Considerations
- Not a Clay-only agency. If you need someone to maintain existing Clay tables on an ongoing retainer, a dedicated Clay specialist may be more efficient.
- Founder-led means capacity is limited to 4-6 active clients.
- The full Install starts at $50K+, not suited to companies under $500K ARR.
- No sales methodology or training. If deals stall after the first meeting, fix the process first.
Best for: B2B companies that want the full GTM system designed and installed, with Clay as the enrichment and scoring engine, and full ownership at the end.
2. Growth Engine X: High-volume cold email powered by Clay
At a Glance
| Field | Value |
|---|---|
| Website | coldoutbound.com |
| Founder | Eric Nowoslawski (former Clay employee) |
| HQ | US (remote) |
| Clay Tier | Elite Studio |
| Best for | B2B companies that need high-volume, Clay-powered cold email at scale |
| Pricing | Not public. Application-based |
What They Do
Growth Engine X is run by Eric Nowoslawski, a former Clay employee who built his agency around the platform. The firm sends over 8 million emails per month across approximately 52 concurrent clients and has served 300+ companies. Services cover end-to-end cold email: infrastructure setup, Clay-powered list building, campaign strategy, and CRM integration.
The client list is the strongest credential: Clay itself, Notion, Instantly.ai, OpenAI, Anthropic, Vanta, Verkada, Rippling, Mistral AI, Intercom, and Secureframe. When the platform's own company hires you to run outbound, it validates the expertise.
Evidence
| Client | Result | Source |
|---|---|---|
| Clay | 4:1 ROAS within 2 months | coldoutbound.com |
| Instantly.ai | 10-20 positive responses per day, 3+ year partnership | coldoutbound.com |
| OpsKings | 90 leads per day for one client | Smartlead case study |
Strengths
- Former Clay employee with the deepest platform knowledge of any agency founder on this list.
- Client roster includes Clay, OpenAI, Anthropic, and Notion.
- Volume capability (8M+ emails/month) is unmatched.
- Elite Studio tier.
Considerations
- Cold email only. No ABM, paid media, CRM architecture, or multi-channel GTM.
- No published pricing. Application-based intake.
- No Clutch or G2 profile for independent validation.
- Founder-fronted brand with no visible team page.
Pricing: Not public. Starts with a free test campaign.
Best for: B2B companies with a large TAM, a proven offer, and the need for high-volume Clay-powered cold email.
3. Frontal: Full-stack GTM agency and Clay Elite Studio Partner
At a Glance
| Field | Value |
|---|---|
| Website | frontal.so |
| Founders | Alex Vacca (CEO), Kenny Damian (Co-founder, Head of GTM) |
| HQ | US (remote) |
| Clay Tier | Elite Studio |
| Best for | B2B tech companies that need outbound + ABM + paid + content + RevOps from one partner |
| Pricing | From $5K/mo, 3-month minimum |
What They Do
Frontal is the done-for-you agency arm of the former ColdIQ, rebranded in 2026. Alex Vacca scaled ColdIQ to approximately $7M ARR bootstrapped before splitting the brand: ColdIQ became a self-serve GTM data platform (unified API, 700+ endpoints), and Frontal became the service business.
Frontal covers five service lines: GTM engineering (outbound), ABM, paid media (LinkedIn and Google Ads), content engineering, and RevOps. They are one of four Clay Elite Studio Partners that also offer services beyond Clay, and the broadest in channel coverage.
Evidence
| Client | Result | Source |
|---|---|---|
| AirOps | $7.83M qualified pipeline (10 months) | frontal.so case study |
| AirOps (ABM) | $9.6M total pipeline, 4x ROI on $136K ad spend (90 days) | frontal.so case study |
| Teikametrics | $300K+ pipeline, 100+ hours saved per month | frontal.so case study |
| Design Pickle | 10 demos/week to 58 demos in 14 days | frontal.so case study |
| Peoplelogic | 100 meetings per month, 86% positive reply rate | frontal.so case study |
Clutch: 5.0/5.0 across 16 verified reviews.
Strengths
- Broadest service scope of any Clay Elite Studio Partner: outbound, ABM, paid, content, and RevOps.
- Strong pipeline attribution in published case studies.
- Senior operators deliver directly.
- 275+ companies served (under ColdIQ and Frontal combined).
Considerations
- Brand is new (2026 rebrand). Track record is real (ColdIQ era) but the Frontal name is recent.
- ColdIQ's legacy G2 reviews are mixed (2.5-3.8 stars with few reviews).
- Multi-channel breadth may mean less depth in any single channel versus a specialist.
- No published pricing beyond the $5K/mo minimum.
Best for: B2B tech companies that want a single Clay-centric partner covering outbound, ABM, paid media, and RevOps.
4. The Kiln (now part of 2X): Clay-native outbound and inbound enrichment
At a Glance
| Field | Value |
|---|---|
| Website | thekiln.com |
| Founders | Mathias Powell and Patrick Spychalski (both former Clay employees) |
| HQ | Brooklyn, NY |
| Clay Tier | Elite Studio |
| Best for | Mid-market companies needing outbound automation and inbound lead enrichment |
| Pricing | $10K-$25K/mo, 3-month minimum |
What They Do
The Kiln was founded in 2023 by two former Clay employees who understood the platform from the inside. Patrick Spychalski was Clay's first marketing contractor. The agency built to $3M+ ARR and a team of 26 before being acquired by 2X in January 2026. 2X is a larger outsourcing firm (~1,300 employees across US, Malaysia, and Philippines), giving The Kiln access to enterprise-scale delivery.
Services cover outbound automation, inbound lead enrichment, and RevOps workflows across Clay, HubSpot, Salesforce, and Apollo.
Evidence
| Client | Result | Source |
|---|---|---|
| Windsurf | Named client | thekiln.com |
| Browserbase | Named client | thekiln.com |
| Sendoso | Named client | thekiln.com |
| T-ROC | Named client | thekiln.com |
Strengths
- Two former Clay employees as founders. Deep platform expertise.
- Published pricing gives buyers a clear expectation.
- 2X acquisition provides enterprise-scale resources and delivery capacity.
- Elite Studio tier.
Considerations
- Post-acquisition, the founding team's involvement may evolve. Confirm who builds your tables.
- Named clients are listed but most lack attributed metrics.
- The 2X parent company is an outsourcing firm, which changes the delivery dynamic from a boutique agency.
Pricing: $10K-$25K/mo, 3-month minimum.
Best for: Mid-market companies that want Clay-powered outbound and enrichment from a team with deep platform expertise and enterprise-scale resources.
5. RevPartners (now Walker Sands): HubSpot + Clay dual-elite architecture
At a Glance
| Field | Value |
|---|---|
| Website | revpartners.io |
| Founder | Brendan Tolleson (Co-founder and CEO) |
| HQ | Nashville / Atlanta |
| Clay Tier | Elite Studio |
| Best for | HubSpot-native companies that need Clay layered into their RevOps |
| Pricing | $9,850-$27,000/mo |
What They Do
RevPartners is the only firm holding both HubSpot Elite Solutions Partner and Clay Elite Studio Partner status simultaneously. Founded by Brendan Tolleson, the firm was acquired by Walker Sands in June 2026, creating a combined entity of 250+ people.
The firm specialises in CRM architecture (HubSpot), RevOps, and GTM engineering via Clay. They host SouthBound, an annual conference at The Coca-Cola Roxy in Atlanta with approximately 500 attendees (~70% CEOs). Their HubSpot practice has a 5.0 rating across 1,000+ deployments.
Evidence
- 1,000+ HubSpot deployments with a 5.0 rating.
- Clutch 5.0 (limited reviews).
- SouthBound conference demonstrates community credibility.
Strengths
- Only dual-elite partner (HubSpot + Clay). If your CRM is HubSpot, nobody else combines both at this level.
- Published pricing.
- Walker Sands acquisition provides marketing and brand resources.
Considerations
- HubSpot-centric. If your CRM is Salesforce or Attio, the dual-elite advantage does not apply.
- Post-acquisition delivery model may change. Confirm team continuity.
- Limited published case studies with attributed pipeline metrics.
Pricing: $9,850-$27,000/mo.
Best for: HubSpot-native companies that want Clay enrichment and automation layered into their existing CRM architecture by a dual-certified team.
6. FullFunnel: Signal-driven GTM and Clay Enterprise partner
At a Glance
| Field | Value |
|---|---|
| Website | fullfunnel.co |
| Founded | 2014 |
| HQ | Boston, MA |
| Clay Tier | Elite Studio |
| Best for | Companies that need signal-driven outreach and Clay Enterprise implementation |
| Pricing | Not public. Flex / Grow / Enterprise tiers. 1-month minimum |
What They Do
FullFunnel positions as a "Clay Enterprise Partner and Engineer of Record," meaning they manage Clay Enterprise deployments for companies that need dedicated support. The firm has approximately 44 team members across five continents and has been operating since 2014, making it the longest-running agency on this list.
Services span GTM and RevOps: signal-driven outreach, enrichment pipelines, scoring, and CRM integration.
Note: There is a separate company called Fullfunnel.io (based in Tallinn, founded by Andrei Zinkevich and Vladimir Blagojević). That is a different firm.
Evidence
| Client | Result | Source |
|---|---|---|
| GLOBO | Named client | fullfunnel.co |
| Finairo | Named client | fullfunnel.co |
| Collette Health | Named client | fullfunnel.co |
Strengths
- Clay Enterprise Partner with dedicated "Engineer of Record" positioning.
- Longest operating history of any agency on this list (since 2014).
- Global team across five continents.
- 1-month minimum engagement is the lowest commitment on this list.
Considerations
- Named clients lack attributed pipeline or revenue metrics.
- No published pricing.
- The "Enterprise Partner" positioning suggests a focus on larger companies; may not suit early-stage.
- No Clutch or G2 profile with meaningful review volume.
Pricing: Not public.
Best for: Companies adopting Clay Enterprise that need a dedicated Engineer of Record and signal-driven GTM services.
7. Go Nimbly: Enterprise RevOps consultancy with a Clay practice
At a Glance
| Field | Value |
|---|---|
| Website | gonimbly.com |
| Founders | Ian Mesey, Jason Reichl, Jennifer Igartua, Troy Conquer |
| HQ | San Francisco, CA |
| Clay Tier | Elite Studio |
| Best for | Mid-market to enterprise companies needing Salesforce + Clay RevOps architecture |
| Pricing | $50K+ per project. $150-$199/hr |
What They Do
Go Nimbly is the largest and highest-priced Clay partner on this list. With an estimated 80-100+ employees and $50K+ project minimums, the firm operates as an enterprise RevOps consultancy where Clay is one layer of a broader Salesforce-centric architecture. Scope includes fractional RevOps, CPQ, quote-to-cash, account hierarchies, and product-led growth infrastructure.
This is not a "Claygency" in the traditional sense. It is an enterprise RevOps firm that has earned Elite Studio status through its Clay practice.
Strengths
- Largest team and deepest bench of any Clay partner.
- Enterprise Salesforce expertise combined with Clay.
- Elite Studio tier despite being primarily a RevOps consultancy.
Considerations
- $50K+ per project makes this inaccessible to most startups and SMBs.
- Clay is one tool in their stack, not the central focus.
- Primarily Salesforce-oriented.
Pricing: $50K+ per project. $150-$199/hr.
Best for: Enterprise companies that need RevOps architecture across Salesforce and Clay with a large, experienced team.
8. The GTM Engineering Company: Fractional Clay builder for early-stage startups
At a Glance
| Field | Value |
|---|---|
| Website | gtmeagency.com |
| Founder | Jorge Macias (Y Combinator S18 alumnus) |
| HQ | Spain (remote) |
| Clay Tier | Artisan |
| Best for | Seed-Series C companies that want one senior fractional builder |
| Pricing | From ~$5K/mo, 3-month minimum |
What They Do
Jorge Macias runs a single-seat fractional GTM engineering practice, building Clay automations, RevOps workflows, and CRM integrations for early-stage VC-backed startups. He has built 100+ GTM systems and helped companies grow from zero to $3M ARR.
Important context: Despite being Artisan-tier (the lowest in Clay's partner programme), Macias ranks on page 1 of Google for "best Clay agencies" through aggressive content marketing across multiple blog domains. This is a useful reminder that search rankings and Clay partner tiers are not the same thing.
Evidence
- 20+ named testimonials including a Chief of Staff for Revenue at GitHub.
- Self-reported ~12% reply-rate lift and 95% cleaner CRM data.
- Clay Solutions Partner and Close CRM Partner.
Strengths
- Most accessible pricing for early-stage companies.
- No coordination overhead: one person, full stack.
- Tool-agnostic approach.
Considerations
- Artisan-tier (lowest Clay partner level). Verify current status at clay.com/experts.
- Single-seat capacity limits availability.
- Self-reported metrics without independent validation.
Pricing: From approximately $5K/mo, 3-month minimum.
Best for: Seed to Series C companies that want a single experienced builder rather than an agency team.
9. demandDrive: Outsourced sales with Clay-powered enrichment
At a Glance
| Field | Value |
|---|---|
| Website | demanddrive.com |
| HQ | Boston, MA |
| Clay Tier | Studio |
| Best for | Companies that need outsourced SDRs with Clay enrichment behind them |
| Pricing | Not public |
What They Do
demandDrive has been running outsourced sales and growth marketing for 15+ years across 1,000+ client engagements. They joined Clay's partner ecosystem as a Studio partner in May 2026, upgrading from Clay user to Clay Enterprise by late 2025 after reporting "millions of dollars in ROI."
The firm is female-owned and provides outsourced SDR/BDR teams, growth marketing, RevOps, and GTM engineering, with Clay powering the enrichment and scoring layer behind the human outreach.
Strengths
- 15+ years of operation and 1,000+ engagements.
- Studio-tier Clay partner.
- Combines human SDR teams with Clay-powered automation.
- Female-owned business.
Considerations
- Primarily an outsourced sales firm. Clay is the engine, not the product.
- Limited published case studies with attributed metrics.
- Pricing not public.
Best for: Companies that want outsourced sales teams backed by Clay-powered enrichment and scoring.
10. Nebor: European Clay agency for B2B outbound
At a Glance
| Field | Value |
|---|---|
| Website | nebor.ai |
| HQ | Amsterdam, Netherlands |
| Clay Tier | Listed in directory |
| Best for | European B2B teams needing Clay-powered outbound |
| Pricing | Not public |
What They Do
Nebor is an Amsterdam-based GTM agency built around Clay. The two founders bring 18 years of shared experience in B2B sales and marketing. They also publish one of the more thorough Clay agency listicles, which signals domain expertise even if it is partly a marketing play.
Strengths
- European timezone and GDPR familiarity.
- Clay-centric approach.
- Active content presence in the Clay community.
Considerations
- Limited published case studies with attributed metrics.
- Exact Clay partner tier not prominently verified.
- Smaller team.
Best for: European B2B companies that want a Clay-focused agency in their timezone with GDPR awareness.
11. OneAway: Clay + Apify scraping workflows
At a Glance
| Field | Value |
|---|---|
| Website | OneAway |
| HQ | US |
| Clay Tier | Listed in directory |
| Best for | Companies that need Clay workflows combined with custom web scraping |
| Pricing | Not public |
What They Do
OneAway has built 190+ Clay tables and specialises in combining Clay with Apify for custom web scraping workflows. This niche is useful for companies whose signal data lives on websites, directories, or platforms that standard enrichment providers do not cover.
Strengths
- 190+ Clay tables built.
- Apify + Clay combination for custom scraping use cases.
- Certified Clay Enterprise Partner.
Considerations
- Niche scope: Clay + scraping. No broader GTM services.
- Limited public case studies.
Best for: Companies that need Clay enrichment combined with custom web scraping from non-standard data sources.
12. Peakora: DACH-region Clay specialist
At a Glance
| Field | Value |
|---|---|
| Website | Peakora |
| HQ | DACH region (Germany/Austria/Switzerland) |
| Clay Tier | Studio |
| Best for | German-speaking companies needing Clay-powered GTM |
| Pricing | Not public |
What They Do
Peakora is a Studio-tier Clay partner focused on the DACH market. For German-speaking B2B companies, working with an agency that understands local market conventions, data protection requirements, and language nuances is often more important than working with the highest-tier global partner.
Strengths
- Studio-tier Clay partner.
- DACH market specialisation.
- Local language and compliance understanding.
Considerations
- Regional focus limits scope for global companies.
- Limited public case studies in English.
Best for: German-speaking B2B companies that need a Clay partner familiar with the DACH market.
Practitioner's Perspective
By Tom Grainger, CEO, Advanced Client. Based on building Clay-powered GTM systems for 30+ B2B companies.
The Tool Is Not the System
We use Clay every day. It is the best data orchestration tool on the market for B2B GTM teams. And it is still just a tool.
The most common mistake we see is companies hiring a "Clay agency" to build workflows before answering three questions: Who are we trying to reach? What signal tells us they are ready to buy? And what do we say when we reach them?
A Clay table that enriches 10,000 contacts per week is worthless if the ICP is wrong. A scoring model that surfaces 50 accounts per day is worthless if nobody has defined what "ready to buy" looks like in your market. Automation at scale multiplies whatever you feed it, including bad targeting and weak messaging.
The right sequence is: define the ICP from your own sales data, identify the signals that predict buying, then build the Clay workflows that operationalise both. Most agencies start at step three.
Five Questions to Ask Any Clay Agency
1. "What is your Clay partner tier, and can I verify it at clay.com/experts?" Agencies claim tiers that may be outdated. The directory is the source of truth.
2. "Who specifically will build my tables?" A partner badge belongs to the firm. Your tables are built by an individual. Demand to know who, and whether they stay throughout the engagement.
3. "Will the workflows live in my Clay workspace or yours?" If the answer is "ours," everything leaves when the contract ends. Insist on your own workspace from day one.
4. "What happens to my Clay credits?" One agency workspace with 41 tables burned an entire month's Clay credits by the 11th because nobody tracked which tables were active. Ask how credit usage is monitored and capped.
5. "What does handover look like?" Documentation and training are the difference between a system you can run and a dependency you cannot escape. Define the handover before signing.
When a Dedicated Clay Agency Is Better Than Us
If your GTM system already works and you specifically need ongoing Clay table management and optimisation, a dedicated Clay agency like Growth Engine X or The Kiln will be more efficient than a full GTM engineering engagement. We are built for designing and installing the system, not for maintaining individual tables on an ongoing retainer.
If your primary need is high-volume cold email and your ICP, messaging, and infrastructure are already strong, Growth Engine X sends 8M+ emails per month. That volume capability is their core competence.
If you are a HubSpot-native company and the gap is specifically Clay + HubSpot integration, RevPartners holds both Elite certifications. That dual expertise is hard to match.
Decision Matrix
1. "We need the full GTM system designed and installed, with Clay as one component." Advanced Client. We build the ICP, signals, Clay workflows, CRM, sending infrastructure, and reporting, then hand it all over.
2. "We need high-volume cold email at scale, powered by Clay." Growth Engine X. Former Clay employee, 8M+ emails per month, clients include Clay and OpenAI.
3. "We want one partner for outbound, ABM, paid, content, and RevOps." Frontal. Broadest service scope of any Elite Studio Partner.
4. "We run HubSpot and need Clay layered into our RevOps." RevPartners. Only dual-elite partner (HubSpot + Clay).
5. "We are enterprise and need Salesforce + Clay architecture." Go Nimbly. Largest team, deepest enterprise RevOps bench.
6. "We are early-stage and need one affordable builder." The GTM Engineering Company. Single-seat, from ~$5K/mo.
7. "We need Clay Enterprise implementation and a dedicated Engineer of Record." FullFunnel. Positioned specifically as Clay Enterprise partner.
8. "We are in the DACH region and need a local Clay partner." Peakora. Studio-tier, German-speaking market specialist.
9. "We need outsourced SDRs with Clay-powered enrichment." demandDrive. 15+ years of outsourced sales, Studio-tier Clay partner.
10. "We need Clay combined with custom web scraping." OneAway. 190+ Clay tables, Apify integration specialist.
How to Choose a Clay Agency: A 5-Step Framework
Step 1: Define what you actually need
Are you looking for someone to build Clay workflows only, or do you need the broader GTM system (ICP, signals, CRM, sending, reporting)? A "Clay agency" solves the first problem. A GTM engineering consultancy solves both.
Step 2: Verify the partner tier
Go to clay.com/experts and confirm the agency's current tier. Partner tiers can change, and agencies sometimes claim a tier they no longer hold.
Step 3: Confirm ownership and workspace structure
Ask whether workflows will be built in your Clay workspace or the agency's. If it is the agency's workspace, negotiate ownership transfer as part of the contract. Settle this before signing, not after.
Step 4: Check proof on your terms
Named clients with attributed pipeline or revenue are the strongest proof. Clutch and G2 reviews add independent validation. Logos without metrics are credible but harder to verify. Ask for a reference at your stage and in your market.
Step 5: Start bounded
A 3-month engagement with a defined scope and handover gives you a clear exit point. Extending a good engagement is easy. Escaping a 12-month retainer with no ownership clause is not.