The 180-employee Devon contractor, which specialises in drainage, geospatial surveys and civil engineering, has been snapped up by the Goldman Sachs-owned Adler & Allan Group – a national operator focused on delivering utilities and infrastructure.
Glanville turned over around £31m last year, generating a pre-tax profit of nearly £4m.
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The deal marks Adler & Allan’s ninth acquisition in just four years.
Since Goldman Sachs’ private equity arm took ownership in 2021, the Harrogate-headquartered group has been on a rapid growth drive, targeting firms across water, waste, remediation and environmental compliance.
Last reported turnover for the group in 2024 reached £217m, generating an operating profit of £15m and employing around 950 staff.
Recent additions to the group include:
- Glanville Environmental (May 2025): Civils contractor delivering drainage, geospatial and remediation services across the South West.
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MEL Environmental Solutions (Oct 2024): Sustainable remediation specialist focusing on contaminated land.
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Utility Line (Mar 2024): Independent connection provider and EV infrastructure contractor.
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QEMS (Feb 2024): Specialist in engineering solutions and quality testing for utilities.
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Public Sewer Services (Feb 2024): Field services contractor to the water, energy and environmental sectors.
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Detectronic Holdings (Mar 2023): Developer of flow and level monitoring tech for water companies.
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Aqua Consultants (Jan 2023): Operational consultancy for the regulated water and utilities sectors.
- Oneline Surveys (2021): waste water
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Jet Aire (2021): Sewage.
Adler & Allan chief executive Henrik Pedersen said: “This acquisition strengthens our position as a turnkey partner to the utilities sector with services from strategic environmental consultancy, data, insight, and analytics, and specialist engineering.”
Glanville’s latest accounts show net assets of just over £5m, with £10m in current assets and around £1.75m in the bank as of March 2024.
Adler & Allan, whose wider group revenue is understood to be nearing $750m globally, is using its Goldman Sachs backing to build a market-leading package of environmental services for UK infrastructure operators under pressure to meet tough ESG and pollution targets.
