Staff at Unit, a Soho post-production house, are sitting pretty, ergonomically speaking. Video editing involves a lot of sitting down, says Luke Colson, facility director, so the company invested in top-of-the-range Aeron chairs, shown below - designed with the help of orthopaedic surgeons and physiotherapists. At £600 each, the chairs were not cheap. But, says Mr Colson: "I spend seven hours a day sitting down."

KPMG, the professional services firm, also takes employee health and comfort seriously. Staff can request an expert workstation assessment, with advice on ergonomic suitability. "For personal assistants and people who do a lot of typing we have started to introduce a lot of split-screen workstations," KPMG says.