Promptwatch Raises €6 Million as AI Search Repeats the SEO Boom

Amsterdam-based Promptwatch has raised €6 million (about $6.8 million) in seed funding to expand the platform brands use to track and shape how ChatGPT, Gemini and Claude describe them. Berlin’s Seed + Speed Ventures led the round, joined by Blum Ventures, while Arches Capital returned after backing the startup’s first check.

The wager is that AI search spawns its own version of the optimization industry Google built around traditional search two decades ago. This time the ranking signals are harder to see, and researchers are already publishing warnings about how easily the new playbook can be gamed.

Seed + Speed Ventures Leads a €6 Million Round

The round pushes Promptwatch’s total funding to just over €7 million, a little over a year after Gijs de Groot and Klaas Foppen founded the company in Amsterdam. The team has grown to 17 people.

Arches Capital first backed the startup with a €1.2 million pre-seed round in September 2025, then returned as a participant in the new raise.

1. 2025: Gijs de Groot and Klaas Foppen found Promptwatch in Amsterdam to help brands track how AI models describe them.
2. September 2025: Arches Capital backs the startup with its first check, a €1.2 million pre-seed round.
3. May 2026: Promptwatch passes €2 million in annual recurring revenue, about a year after its platform went live.
4. July 2026: A €6 million seed round closes, led by Seed + Speed Ventures with Blum Ventures and Arches Capital.

The raise lands in an active stretch for European seed rounds. Munich-based Finto, an AI accounting startup, chose Munich over Silicon Valley after Y Combinator and closed a $3.4 million round of its own this year.

Search Optimization Has Been Here Before

Generative Engine Optimisation, or GEO, is the practice of shaping content so AI chatbots cite, quote or recommend a brand instead of a rival. The term barely existed three years ago. Neither did an industry built around it.

Search optimization has lived through a fight like this before. When Google became the default way people found information, an entire economy of consultants, link-building agencies and rank-tracking software grew up around landing in the top few blue links. Google spent years pushing back with algorithm updates aimed at spammy tactics. Promptwatch’s founders are betting the same economics repeat now that a growing share of queries end inside a chat window instead of a results page.

Gartner projects organic search traffic could fall by half or more by 2028 as more people turn to AI assistants instead of links, with 58% of users already routing at least some searches through AI tools rather than a traditional results page. A 2026 governance position paper on AI search risks warns the new cycle concentrates influence in a handful of model makers, a dynamic Google’s own rise never quite produced because rival search engines kept some competitive pressure alive.

How Does Promptwatch’s Agentic Engine Actually Work?

Promptwatch scans more than 10 million data points a day, pulled from real user prompts, AI-generated answers, citations, model updates and agentic traffic, then flags where a brand is missing, misquoted or losing ground to a competitor. Its Content Agent drafts fixes, and a feature called Actions can publish them straight into a client’s content management system. More than 1,840 organizations now run on the platform.

The company tracks its own findings on a live feed tracking citation and content shifts across models.

In less than a year, we’ve built advanced capabilities including our Content Agent, Actions and Model Context Protocol (MCP), which connects Promptwatch to AI tools such as ChatGPT and Claude. With Agentic AI Search Optimisation, we’re making it easier for organisations to scale their AI search marketing through automated execution.

Gijs de Groot, Promptwatch’s co-founder and chief executive, said the Model Context Protocol integration lets the platform publish changes directly inside the same AI tools it tracks.

The mechanics differ enough from classic search ranking that Promptwatch and its rivals built new instruments to track them.

The Market Promptwatch Is Racing to Own

The category Promptwatch competes in barely existed when the company launched. Independent trackers size the global GEO market at $886 million in 2024, climbing toward $7.3 billion by 2031, a jump of eightfold increase tracked across dozens of vendor data points.

In the United States alone, the GEO market is on pace to reach $365.4 million in 2026, expanding at a 42.9% annual rate, more than three times faster than traditional SEO software spending. Google’s AI Overviews now appear in about 25% of all Google searches, nearly double the 13% share recorded just months earlier.

Amsterdam is not the only European city producing AI-adjacent seed rounds this year. Berlin’s Lissi, which builds connectors for the European Union’s digital identity wallet standard, raised €3.5 million to scale across European markets, a reminder of how much early-stage capital is chasing infrastructure sitting underneath everyday digital services.

Why Even Believers Flag the Same Weak Points

The same reports fueling GEO’s growth numbers acknowledge a structural problem: attribution is broken. When an AI assistant answers a question using a brand’s content, the resulting visit often shows up in analytics as direct traffic, with no referral path back to the page that earned the citation.

Researchers have also documented citation errors baked into how models select sources. A study diagnosing citation failures in generative search found AI engines pull the large majority of their citations from third-party sources, meaning a brand’s own website content alone rarely wins a mention.

A separate paper on manipulation risk is blunter. Research on AI recommendation-agent vulnerabilities found coordinated content attacks can raise the odds of a flawed or low-quality product entering an AI system’s recommendation set by up to 83.2%, the same mechanics legitimate GEO platforms use on behalf of paying clients.

• GEO vendors and investors point to adoption data showing brands that optimize for AI search see meaningfully higher visibility and more qualified traffic than those that ignore it.
• Academic researchers counter that the same techniques can be turned against consumers, pushing flawed products into AI recommendations without disclosure.
• Publishers argue generative answers strip away the referral clicks that funded the original reporting AI models now summarize for free, a grievance behind a wave of copyright lawsuits against AI companies.

None of this has slowed the fundraising. It has mostly shaped what investors expect founders to say out loud about the category’s limits.

A New York Desk and the Next Round of Hires

Promptwatch says the new capital funds four things:

• Building the next generation of its agentic search optimization technology
• Expanding into international markets beyond Europe
• Growing engineering and go-to-market teams
• Opening a New York City office to serve US brands, agencies and enterprise customers

The New York office is expected to open within the year, giving Promptwatch a physical base to court the US agencies and enterprise marketers now deciding how much of next year’s search budget follows readers from a results page into a single AI-generated answer.

Frequently Asked Questions

What Does Promptwatch’s Platform Actually Do?

Promptwatch monitors how AI chatbots such as ChatGPT, Gemini and Claude describe a brand, then generates and publishes fixes for the gaps it finds. Beyond client dashboards, the company also publishes free AI search data reports on its own site, sharing aggregate findings on how citations and content types shift across models.

Has Promptwatch Disclosed Its Valuation?

No. Promptwatch has not disclosed the valuation attached to either its September 2025 pre-seed round or its July 2026 seed round, a common practice among early-stage European startups raising seed capital.

How Is Generative Engine Optimization Different From SEO?

Generative Engine Optimization focuses on how an AI model selects and phrases a single answer. Traditional SEO focuses on how a page ranks inside a list of links. The related term answer engine optimization, or AEO, is used by some marketers interchangeably, and surveys show 98% of chief marketing officers now say they are investing in some form of it.

Who Competes With Promptwatch?

Berlin-based Peec is among Promptwatch’s closest rivals in the GEO category. Gijs de Groot, Promptwatch’s chief executive, has said the company sets itself apart by generating chatbot-ready content directly for clients.

Which Companies Use Promptwatch?

Promptwatch counts more than 1,840 organizations as customers, including language-learning app Duolingo, meeting-transcription company Fireflies and digital agency Monks.