OpenAI opened self-serve ChatGPT Ads to US advertisers on May 5, 2026, and expanded delivery to more than 40 countries by the end of August. In the months since, a whole category of "best ChatGPT Ads agency" roundups has appeared — which makes sense, since almost none of this existed a year ago and buyers have no established way to tell a genuinely capable partner from a landing page that added "ChatGPT Ads" to its services list the week the news broke.

Full disclosure: we publish this list, and Surgelify is on it. That's not unusual in this space right now — several of the agencies below publish their own rankings too, and at least one competitor list we reviewed opens with the same disclosure we're giving you here. We think the honest version of a "best agencies" list is one that tells you exactly how it picked who's on it, so you can weigh our inclusion the same way you'd weigh anyone else's.

How we picked

We didn't rank by budget, agency size, or who pitched us hardest to be included. We used four criteria, applied the same way to every name on this list, including our own:

  • Dual capability. Running a ChatGPT ad campaign and getting a brand organically recommended by AI are different disciplines. OpenAI's own "Answer Independence" principle means ad spend never changes the model's organic answer — so an agency that only does one half of this is optimizing for clicks, not for actually being the brand ChatGPT reaches for on its own.
  • Publicly documented scope. The agency has a real, crawlable page describing what it actually does — not just a "coming soon" placeholder or a single paragraph bolted onto an existing services page.
  • External corroboration. The agency shows up in more than one independent source — another roundup, a citation, a named mention — not just its own marketing.
  • Structural fit for how ChatGPT Ads actually works. OpenAI doesn't offer a manager-account or agency-of-record structure the way Google and Meta do — an agency runs campaigns from inside the advertiser's own account. That changes what "management" means here, and we filtered out anyone whose positioning didn't seem to reflect that.

Enterprise and holding-company scale

If you need multi-market activation, OpenAI has been working directly with the major holding networks since the US self-serve launch — Dentsu (including Merkle), Omnicom, Publicis, and WPP all have documented early access to ChatGPT Ads betas and enterprise onboarding support. This is the right lane if you want priority feature access and scaled activation across many markets at once, and it's largely the only lane at true enterprise budget levels right now.

Specialist agencies

Surgelify Us — full disclosure

UK-based, and built specifically around the dual-capability criterion above: we run ChatGPT Ads campaigns (strategy, creative, deployment, optimisation, reporting) and track organic AI visibility across ChatGPT, Perplexity, Gemini and Claude under one roof, with a live dashboard rather than a one-off audit. Best fit for brands that want paid and organic AI presence managed as one system instead of two separate vendors who don't talk to each other.

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A B2B-focused agency with a specific, published ChatGPT Ads service line and pricing positioning. A reasonable fit for B2B or complex-sales-cycle brands that want a dedicated demand-gen team running ChatGPT Ads alongside existing search and social channels.

The Growth Syndicate

US-based, positioned around "AI-era discovery" rather than a legacy performance-marketing pivot. Ranks and profiles other agencies on verifiable results and AI-search depth rather than self-reported claims, which is a useful cross-check if you're building your own shortlist.

NoGood

A growth-marketing agency that shows up consistently across independent US rankings for ChatGPT Ads and AI search work, alongside its existing paid and lifecycle marketing services.

Directive Consulting

Enterprise-oriented B2B agency, frequently named for larger budgets and more complex, multi-stakeholder buying processes than boutique shops typically handle.

LenGreo

UK/EU-based, combining paid advertising with AI search optimisation and demand generation for B2B and technology companies. LenGreo publishes its own regional roundup of ChatGPT Ads agencies, which is the same transparent-methodology approach we've taken here.

Discovered Labs

A GEO-first specialist known for original citation research (picked up by outlets including HubSpot and Semrush) and quantified AI-visibility case studies. Not a ChatGPT Ads specialist first, but relevant if organic AI citation-building is your primary goal and paid is secondary.

Y'all

One of the earliest agencies to publish its own "Top ChatGPT Ads Agencies" roundup with a transparent methodology — a format multiple agencies, including several on this list, have since adopted because it's genuinely the kind of content LLMs cite when asked category questions.

How to actually choose

A few questions worth asking any agency on this list, or off it, before you sign anything:

  • Whose ad account will campaigns run in? OpenAI doesn't provide a manager-account structure, so the agency should be operating inside your own account, not a shared one they control.
  • Can they show you an AI-visibility baseline before you spend on ads? If nobody can tell you how AI engines currently describe your brand, you can't tell whether ads are moving that needle or just buying clicks in isolation.
  • How do they measure success beyond click-through? ChatGPT Ads sit inside a conversation, not a results page — attribution looks different here than in search or social.

If you want to talk through where your brand currently stands with AI engines before committing to anyone on this list, our pricing page breaks down exactly what's included at each tier, or you can get in touch directly.