Northumberland brothers to pitch OnlyCat’s AI innovation on BBC TV show Dragons' Den

A Cramlington-based company run by brothers Martin and Tomas Rosinski will be in the spotlight on the hit BBC television show Dragons’ Den.

Viewers will see them pitch OnlyCat, which is an AI-powered cat flap designed to help prevent cats bringing prey into the home while still allowing them to come and go freely.

They will then find out if one or more of the investors for the episode on Thursday, February 12 starting at 8pm – Peter Jones, Deborah Meaden, Touker Suleyman, Steven Bartlett and Susie Ma – make them an offer and if they do, how Martin and Tomas respond.

Martin explained that the idea began at home with his cat, called Jinx.

Brothers Martin and Tomas Rosinski pitching OnlyCat on Dragons' Den.placeholder image
Brothers Martin and Tomas Rosinski pitching OnlyCat on Dragons' Den.

He said “Jinx is brilliant – but like many cats, she had a habit of proudly bringing home things we didn’t want brought in.

“That was the spark. We wanted to solve a real, everyday problem for cat owners in a way that was smart, practical, and genuinely life‑improving.”

OnlyCat’s key innovation is its built-in AI camera, which screens a cat’s entry. If the system detects prey, the flap stays locked and the owner can receive a video alert showing the foiled attempt.

The flap also supports microchip-based access control, allowing households to decide exactly which cats can come and go.

Tomas added: “Our goal was simple – keep the freedom cats love, while giving owners back control at the front door.

“OnlyCat is already the fastest‑growing startup we’ve ever built. We’re building an incredible team, we’re seeing phenomenal feedback from customers and demand is growing rapidly.”

The brothers first launched OnlyCat via crowdfunding and have since scaled rapidly, with revenues now exceeding £2million and growing exponentially. They now manufacture in the UK and ship globally.

As demand accelerates, Martin and Tomas are supported by a strengthened senior management team alongside a growing group of talented engineers, designers, technicians and software specialists building the next generation of smart pet technology.

Customer feedback has been one of the strongest signals of product-market fit, with owners describing OnlyCat as “life-changing” and “worth every penny”.

In the programme, Martin and Tom will seek investment to help accelerate manufacturing, expand global distribution and support the next stage of growth.

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