The deal was agreed for £30 million, comprising £27 million in cash with the balance satisfied through the issue of some 520,000 new ordinary shares.

Enviros was sold by its management and private equity firm ECI Partners, which backed a buy-out at the company six years ago. This deal represents a multiple of more than 2.6 times ECI’s investment and is the sixth exit from its ECI 7 fund.

Post-completion, Enviros will continue to trade under its brand and be led by chief executive Barry Newby and head of finance Andrew Smith.

Enviros, which was established in 1995, provides a range of environmental and technology services through four divisions: climate change; risk and resource management; corporate services; and land and water.

The company employs more than 350 people in its 10 offices throughout the UK and Ireland serving organisations such as The Carbon Trust and BP.

Last year, Enviros reported a turnover of £29.5 million, generating EBITDA of £2.6 million and a pre-tax profit of £700,000 before non-recurring items.