Company · Sheffield

A factory should not buy the same water twice.

Most rinse water leaves a factory after a single use, only lightly dirty. Tarn exists to send it back to the line instead. We build one machine and we build it for the factory floor.

How we work

Three rules we hold to.

  • One machine, made well

    We make one skid in a few sizes. Every part on it is one we have tested on a working line.

  • Your water decides

    Nothing is sold before a pilot runs on your own water. If the figures do not hold, we say so.

  • Every litre logged

    The plant records what it returns every 60 seconds, so the savings can be checked, not taken on trust.

So far

From a bench rig to a skid.

  1. 2024A bench rig treats rinse water from a brewery in a rented unit.
  2. 2025Tarn is founded in Sheffield. The first pilot skid is built.
  3. 2026Three pilots run on live lines: food and drink, textiles, metal finishing.
  4. NextThe first full skids, rented to the pilot sites.

Roles

People who like plant rooms.

  • Field service engineerSheffield · Travel across the UK
  • Process engineer, waterSheffield
  • Controls engineer, PLC and SCADASheffield or remote

None of these roles is open today.