European retailers expanding internationally face a rapidly growing regulatory burden. Every product must comply with labelling rules, safety documentation and traceability requirements across dozens of markets – a process that today involves manual checks, consultants and weeks of work for every product launch. Copenhagen-based startup Complir is building an AI platform that automates the entire workflow. The company has now been accepted into Y Combinator, the Silicon Valley accelerator behind companies like Stripe, Airbnb and Dropbox.
Prior to its acceptance into Y Combinator, Complir had already proven its commercial viability. Over the past six months, the company has experienced 45% month-on-month growth and recently opened an office in France as part of its European expansion. In December 2025, the company raised €1.7 million in pre-seed funding at a post-money valuation of €6.8 million. The round was led by Vendep Capital with participation from Likeminded, Plug and Play, F-Log Ventures and a strong group of business angels from the retail industry and tech startup scene – including former Coop Group CEO Kraen Østergaard Nielsen, Coop Trading chairman and GS1 board member Per Thau, and Neil S. W. Murray from The Nordic Web Ventures.
With its acceptance into Y Combinator, Complir now accelerates its growth with access to Silicon Valley’s most connected network of investors, founders and tech companies.
From Flying Tiger Copenhagen to Silicon Valley
Complir is not a typical startup story. The company was founded in Copenhagen in 2024 by Gustav Bang and Tine Kühnel, born out of a concrete problem at Flying Tiger Copenhagen – one of retail’s most complex operators, managing over 500 new products per month across 44 markets while facing increasing EU requirements around product compliance and traceability.
Rather than building a product in a vacuum, Complir gained full access to Flying Tiger Copenhagen’s organisation and developed its AI-driven compliance platform in close collaboration with one of retail’s most demanding operators. The result was a solution that was battle-tested from day one – and a reference brand that opened doors internationally.
“We have proven that our solution works inside some of Europe’s most complex retail organisations. YC now gives us the tools and the network to prove the same to the rest of the world – and to do it faster than we could alone,”
says Gustav Bang, CEO of Complir.
For Complir, acceptance into YC means access to something that is hard to buy: credibility and a network in the US market from day one. The YC stamp of approval is, in Silicon Valley and among global investors, a mark of quality that opens doors that would otherwise take years to knock on.
