MSG Broadcast - Harpenden

2Emme Technology -

Fourth Tier Solutions Ltd - Harpenden

HCL Technologies UK Ltd. - Welwyn Garden City

Virtue Tech - Harpenden

Barton Blakeley Technologies LTD - Harpenden

Ocado Technology - Hatfield

Rothamsted Research - Harpenden

dataHE - St Albans

Fine-All Consulting LTD - Harpenden