Modular off-site manufacturer acquires assets of insolvent portable building maker
Modular manufacturing specialist, Thurston Group, has acquired the assets, intellectual property and customer relationships of Alsim System Building Ltd, following its recent insolvency.
The acquisition will complement Wakefield-headquartered Thurston’s product offering and allow it to expand its Cabins division as it seeks to solidify its position in the UK modular and portable building sector.
It will also diversify the firm’s offering, enabling it to manufacture an additional style of temporary living accommodation not currently within its portfolio.

Hull-based Alsim was established in 1992 and grew into a leader in the temporary living and secure accommodation sector, employing 52 people before running into financial difficulties in late 2024.
The acquisition of Alsim’s assets follows Thurston Group’s investment into Storplan, a specialist fabrication business in February this year, which has increased production capacity and unlocked the ability to deliver larger structural steel projects and more complex modular construction schemes.
Matt Goff, managing director of Thurston Group, said: Alsim has long been respected for its design expertise and customer relationships within the construction sector.
“By acquiring its assets and IP, we’re not only strengthening our own technical capability but also reinforcing our position as a trusted, forward-thinking off-site manufacturer.
“This acquisition enables us to support Alsim’s existing customers with confidence, while enriching our design library and expanding the breadth of solutions we offer.
“Strategic moves like this are fundamental to Thurston’s growth – we’re actively seeking further opportunities to diversify, scale our capacity, and enhance our expertise to better serve a growing client base and cement our leadership in the modular industry.”
Founded in 1970, Thurston Group, now has a portfolio of over 100 clients. The firm employs about 380 people across its four sites in East and West Yorkshire and is on track to turnover £60m this year.
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