Sullivan Street Partners-Backed Ancora Group Acquires UK Marine Engineering Specialist Red7Marine in Undisclosed Mid-Market Buy-and-Build Deal
Sullivan Street Partners (SSP), a UK-based private equity (PE) firm specialising in mid-market buy-outs, has completed the acquisition of Red7Marine through its portfolio company Ancora Group. The deal, announced on 1 June 2026, marks Ancora's first acquisition since SSP assembled the group in March 2025 by combining Teignmouth Maritime Services, Hesselberg Erosion Protection, and Marine Plant Hire. Financial terms have not been disclosed. Red7Marine, founded in 1999 and headquartered in Ipswich, Suffolk, reported a turnover of £42.2 million and a pre-tax profit of £5.5 million in the year ending 31 July 2025, employing an average of 64 people. Its work spans marine civils, flood defence, offshore renewables, cable installation, and nuclear infrastructure, and it operates a fleet of specialist jack-up barges (flat-bottomed vessels that can raise themselves above the water on legs for stability during offshore work). The combination gives Ancora a stronger presence on the UK south coast and adds self-delivery capability through Red7Marine's specialist vessel fleet. SSP managing partner Layton Tamberlin described the deal as an 'important add-on' as SSP targets a nationwide network of self-delivering marine contractors. Ancora's CEO Simon Light cited climate, regulatory, and economic pressures as drivers of demand for integrated marine solutions. Burges Salmon provided legal counsel to Sullivan Street and Ancora, with RSM handling financial diligence and PwC providing tax diligence.
Why this matters
This deal is a textbook PE buy-and-build strategy — SSP is aggregating specialist UK marine contractors to create scale, self-delivery capability, and pricing power ahead of an eventual exit. The combination activates corporate M&A work (share purchase agreement, warranty and indemnity (W&I) insurance review, conditions precedent management) as well as regulatory diligence around offshore renewables and nuclear infrastructure licensing. The 'why now' trigger is multi-layered: ageing coastal infrastructure, climate-driven coastal defence spend, and the UK government's infrastructure pipeline all point to sustained demand for marine civils work. Burges Salmon's role as legal adviser confirms the Bristol-headquartered firm's strength in mid-market UK infrastructure transactions.
On the Ground
A trainee on this matter would assist with drafting and tracking conditions precedent (CP) checklists ahead of completion, verifying the disclosure letter against the target's accounts, and coordinating Companies House filings post-completion. They would also support preparation of the completion bible, indexing due diligence reports across the financial, tax, and legal workstreams.
Interview prep
Soundbite
PE buy-and-build in UK marine infrastructure signals sustained M&A advisory demand as coastal defence spend accelerates.
Question you might get
“What legal due diligence workstreams would be most critical when acquiring a marine engineering business that operates in offshore renewables and nuclear infrastructure, and what specific risks might those sectors introduce to a share purchase agreement?”
Full answer
Sullivan Street Partners has acquired Red7Marine through Ancora Group in an undisclosed deal, adding a £42m-revenue marine engineering business to its growing UK marine contractor platform. The deal creates a scaled group with self-delivery capability across ports, flood defence, offshore renewables, and nuclear infrastructure — sectors all benefiting from the UK's infrastructure pipeline. This fits the broader PE pattern of building sector-specific platforms ahead of an exit, compressing holding periods as portfolio companies scale through acquisition rather than organic growth alone. The deal suggests that mid-market infrastructure advisory — particularly for firms like Burges Salmon with established buy-and-build track records — will continue to generate steady deal flow as climate-linked infrastructure spending rises.
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