Renew will pay £17m for the business, which employs around 200 staff and made an operating profit of £3.5m last year.
The family-owned business was set up just 14 years ago and offers engineering services covering all aspects of wireless telecoms infrastructure delivery, including site acquisition and design, construction, installation and site optimisation.
Clarke has relationships with all of the UK’s cellular network operators and major network equipment manufacturers and turned over £33m last year.
The wireless telecoms infrastructure market is currently experiencing growth as demand for mobile internet access and communications is outstripping the capability and capacity of the existing mobile network infrastructure alongside the introduction of 4G services.
This is resulting in a growing need for network operators to add new infrastructure, upgrade existing networks and decommission redundant assets.
Roy Harrison, chairman of Renew, said: “Clarke Telecom is a leader in a field which is enjoying strong structural growth and broadens Renew’s activities in the infrastructure market.
“This earnings enhancing acquisition accords with the group’s clear strategy of growing its engineering services business, where it can secure strong framework positions with major clients in sustainable markets supporting critical UK infrastructure.”