Giacom World Networks, Hessle
Founded by Nick Marshall in 1999, this cloud IT and communications solutions provider is based in the East Riding of Yorkshire.
Giacom began life as an Internet Service Provider, but introduced its own email security platform in 2006 and built its own hosted exchange service in 2010.
The company now claims to be Europe’s largest reseller-only channel for cloud services. It was acquired by London-based specialist asset management firm Livingbridge this year.
Check out our '101 Yorkshire and Humberside’ list for more tech stars from the region.