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Simpson Thacher advises Blackstone on the Sale of a Majority Stake of DESOTEC

11.21.25

Simpson Thacher has advised private equity funds managed by Blackstone on its agreement to sell a majority stake in DESOTEC to EQT Future fund (or “EQT”), a leader in circular mobile filtration solutions. The transaction is subject to customary conditions and is expected to close during H1 2026.

DESOTEC operates the world’s largest fleet of mobile (re)-activated carbon filters, combining innovative technical solutions to more than 2,000 customers across Europe and North America. The Company’s business model generates strong recurring revenues and customer retention, underscoring the mission-critical nature of its service and DESOTEC's compelling value proposition for customers.

The Simpson Thacher team included Geoff Bailhache, Sean Macdonald, Beanka Chiang, Rachael Short, Ella Hammond (Corporate); Yash Rupal, Caleb McConnell, Oliver Rosshandler (Tax) and Dan Peach, Andrew Bechtel, Margareta Newman (Finance).