Amsterdam-based Promptwatch has raised €6 million in seed funding to expand its AI search optimization platform and move deeper into the execution layer of generative engine optimization.

The round was led by Berlin-based seed + speed Ventures, with participation from Blum Ventures. Existing investor Arches Capital also returned after backing Promptwatch’s pre-seed round in September 2025.

Promptwatch said the capital will support product development, international expansion and hiring across its engineering and go-to-market teams. The company also plans to establish an office in New York City as it builds closer relationships with US brands, marketing agencies and enterprise customers.

From AI visibility tracking to automated execution

Founded in 2025 by Gijs de Groot and Klaas Foppen, Promptwatch helps companies understand how their brands, products and content appear in answers generated by systems such as ChatGPT, Claude and Perplexity.

The problem differs from traditional search optimization. Marketing teams can track keyword rankings, website traffic and page performance in conventional search. AI assistants may recommend, compare or exclude brands without giving companies the same visibility into which sources shaped the response.

Promptwatch collects data from prompts, AI-generated responses, citations, crawler activity, model changes and different content formats. It then uses that information to identify the sources influencing brand recommendations, locate missing information and detect technical barriers that may prevent AI systems from accessing website content.

The platform extends beyond measurement. Its agentic workflow can prioritize optimization opportunities, generate content designed for AI retrieval and publish approved material through content management integrations including WordPress, Webflow and Framer. The company also offers crawler monitoring, citation analysis, competitor comparisons and prompt-level visibility tracking.

Capital-efficient growth strengthens the funding case

Promptwatch reported passing €2 million in annual recurring revenue in May 2026, approximately 12 months after launch. It had previously raised €1.2 million in pre-seed funding, bringing its disclosed capital raised to approximately €7.2 million.

The funding announcement states that more than 1,840 organizations use the platform, including Duolingo, Fireflies and global marketing company Monks. Promptwatch said its data infrastructure processes more than 10 million data points each day, although other company materials use higher figures.

The company’s early revenue performance appears central to the investment. seed + speed Ventures focuses on early-stage B2B software businesses and typically invests between €500,000 and €2 million initially, alongside commercial support for sales and marketing development.

Why AI search optimization is becoming a software category

The commercial question is no longer limited to whether a company ranks on Google. Brands increasingly need to understand whether AI systems recognize their products, cite reliable information and include them when users request recommendations.

That creates demand for a new software layer connecting content, reputation, technical accessibility, prompt intelligence and measurement. Many early GEO products concentrate on monitoring brand mentions or comparing AI visibility scores. Promptwatch is betting that measurement alone will become difficult to differentiate.

Its strategic bet is an end-to-end workflow: observe how models represent a company, determine why that representation exists and execute the changes needed to improve it.

This approach also places Promptwatch closer to established SEO platforms, content intelligence tools, marketing automation systems and enterprise content management software. The opportunity is meaningful, but the category remains fluid. AI platforms change their retrieval systems, source preferences and answer formats frequently, making durable attribution and performance measurement difficult.

What the €6 million round signals

Promptwatch’s funding points to a broader transition from generative engine monitoring toward operational AI search infrastructure.

Marketing teams are unlikely to adopt another analytics dashboard unless it produces clear actions. Platforms that can connect visibility data with technical fixes, content production, publishing and measurable business outcomes may be better positioned to become part of recurring marketing workflows.

Promptwatch must now demonstrate that automated optimization can improve visibility without creating low-quality content or encouraging brands to chase unstable model behavior. It will also need to prove that AI visibility connects to qualified traffic, customer acquisition and revenue rather than becoming another isolated marketing metric.

The next stage of the category will be shaped by the companies that can turn opaque AI recommendations into an accountable workflow. Promptwatch’s €6 million round gives it additional capital to test whether agentic execution—not monitoring—becomes the defining layer of AI search optimization.