Marble raises $3.75m: Evertrace spotted Felix Rösner 339 days earlier

Marble has raised $3.75m in pre-seed funding, co-led by Heartcore and Seedcamp. The Munich-based company builds AI coworkers that learn how a team works by watching it, and then take over repetitive processes.

Evertrace spotted Felix Rösner, co-founder of Marble, 339 days before the funding announcement.

Before the round

On 28 November 2025, Evertrace detected a stealth signal for Felix Rösner. Felix was in stealth, working on something new. That was 339 days before Marble's funding announcement.

Felix Rösner and co-founder Christophe Schmit met at the Center for Digital Technology and Management in Munich, and started Marble in late 2025.

What they’re building

Many companies want AI to take over routine work, but the steps of that work are rarely written down. Marble's desktop app records how employees use their tools and turns that activity into structured maps of each process.

From these maps, Marble builds AI agents it calls Marble Coworkers. They run the processes in the tools a company already uses, and bring in a person when a step needs judgement or approval. Marble says the data is anonymised and analysed in aggregate, and employees can pause the recording at any time. Early customers include EGYM, Mutares and Enam.

The round

Heartcore and Seedcamp co-led the $3.75 million pre-seed round. Angel investors include a Datadog board member, a Personio founder and executives from McKinsey, Mistral AI and Lovable. Marble will use the funding to scale its inference capabilities, grow its engineering team in Munich and launch in the US.

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