| Go Web Design & Development Ltd | |
| Go Websites | |
| GO-4IT.co.uk | |
| Go2 Telecom Ltd | Cheshire |
| go6 media | West Sussex |
| GoAhead Consulting Ltd | |
| GOAT Digital Ltd | |
| GoCardless Ltd | Greater London |
| GoCloud Ltd | East Riding of Yorkshire |
| Goddess Gaia Ventures | |
| Godel Technologies | Greater Manchester |
| Gofore plc | |
| GoGo Marketing & Advertising Ltd | |
| Goji Financial Services Ltd | |
| Gokart London Ltd | |
| Golang Cafe | |
| Golang Developer Jobs | |
| Gold Coast Media Ltd | |
| Gold Standard Phantoms | |
| Gold-I | Surrey |
| Gold-Vision | Northamptonshire |
| Golden Gorilla Media | |
| Goldenboy Media Ltd | |
| Golding Computer Services Ltd | East Riding of Yorkshire |
| Goldmine Design | Causeway Coast and Glens |
| Goldsmiths, University of London | Greater London |
| Goldsmiths, University of London - Department of Computing | Greater London |
| Golivenow | |
| Golledge Electronics | Somerset |
| GoMetro | |
| Gomie Design | |
| Gomo Learning | East Sussex |
| GomobiApp | |
| GoMy | Greater Manchester |
| Gonear Software Solutions | |
| Gooch & Housego plc | Somerset |
| Good Comms | |
| Good Praxis | |
| GoodBytes.Network Ltd | Greater London |
| GoodCore Software Ltd | Greater London |
| GoodFit.io | |
| Goodlord | |
| Goodman Lantern Ltd | |
| Goodspeed | |
| GoodVision Ltd | |
| Goodwin Electronics Ltd | Merseyside |
| Goodwin Machinery Ltd | Greater Manchester |
| Gooey | Greater Manchester |
| Gooii Ltd | Nottinghamshire |
| Goonhilly Earth Station Ltd | |