Cosuno

Cosuno is a Berlin-based tendering platform that automates the construction bidding process across Germany, Austria, and Switzerland — connecting general contractors, project developers, and architects with a network of 280,000+ subcontractors. The product publishes 4,000+ tenders a month and uses AI to assist both with creating tenders and generating bids, claiming roughly 5.7% savings in construction costs for clients. Founded in 2019, Cosuno has raised about $45M (Series B led by Avenir Growth, with Spark Capital and Cherry Ventures), and grew to ~140 employees. Internally it leans on flat hierarchies and a 'no bureaucracy' working style — a good fit for a PM who wants to work on a B2B marketplace inside a notoriously analog industry.