Who is Rock Compliance?

Rock Compliance is a private equity firm based in the United Kingdom.

Firm facts

Rock Compliance

Type

private equity firm

Headquarters

United Kingdom

Website

rockcompliance.co.uk

Owned by

Andwis

Industries

• Construction & infrastructure
• Professional & business services

Last verified 2026-10-30

How they work

Rock Compliance provides water, air and environmental compliance services for buildings and estates across the UK. It grew by acquiring regional businesses, including Eplus Global and Glisten Water, before joining Andwis in 2025. Its current operations combine acquired teams into the Rock Compliance platform.

Rock’s acquisition history describes the integration of regional service businesses into a national platform. Its 2026 update reports consolidation of IWS business, contracts and systems into Rock. The reviewed sources do not publish a standard seller timetable or current independent approval authority.

Platform or bolt-on

Verified acquisitions add businesses or capabilities to the existing operating group. Historically, regional water, air and related compliance-service businesses that add expertise and coverage. The Glisten transaction was described as its seventh acquisition since formation in 2017; no independent post-Andwis financial buying mandate is asserted.

Sector focus

Historically, regional water, air and related compliance-service businesses that add expertise and coverage. The Glisten transaction was described as its seventh acquisition since formation in 2017; no independent post-Andwis financial buying mandate is asserted.

Ownership

Acquired local businesses are integrated into Rock’s operating platform rather than necessarily retained as separate companies.

Capital model

Operating company within Andwis, ultimately backed by H.I.G. Capital.

Geography

United Kingdom, through national coverage and regional service teams.

Sources

• rockcompliance.co.uk · website
• rockcompliance.co.uk · research
• rockcompliance.co.uk · research
• andwis.com · research
• rockcompliance.co.uk · research
• rockcompliance.co.uk · research
• rockcompliance.co.uk · research
• rockcompliance.co.uk · research
• hig.com · research