KeslerLab is an independent product studio shipping software for athletes, operators, and the people who build them.
KeslerLab is a UK-registered product studio based in Suffolk. We're a small team of engineers and designers who care about details most teams skip.
We work in tight loops — close to the problem, close to the user, close to the code. Every product we ship, we use ourselves.
We take on a small number of partnerships each year, alongside our own products.
A premium daily check-in and readiness app for professional athletes and coaches — 30-second daily input, AI-assisted recovery insights, and a shared body map between athletes and their support staff.
Interfaces that respect the user's attention. Dense where it needs to be, quiet everywhere else.
React Native and native iOS/Android. Production apps with real users, not prototypes.
Rails, Node, PostgreSQL, sensible cloud. We own the full stack of the products we ship.
Practical machine learning applied to real product loops, not demos.
We embed with early-stage teams to ship the first credible version of a product.
We maintain what we build. No throw-over-the-wall delivery.
We take on a small number of new engagements each quarter. If you're working on something we'd be useful for, write to us.
EMAIL info@keslerlab.co
ADDRESS 82a James Carter Road
Mildenhall, Suffolk, IP28 7DE
United Kingdom
COMPANY KeslerLab Ltd · Reg. No. 16804759
Registered in England & Wales
INCORP. 23 October 2025
D-U-N-S 234284969