[3] The Useful Simple Trust also owns Thomas Matthews, a sustainable communication design practise ;[4] Think Up, a company specialising in engineering educational materials;[5] Useful Simple Projects, a strategic sustainability consultant, and Useful Studio an architecture design practise.

[6] The trustees of the Useful Simple Trust are: Expedition Engineering's notable projects are: Expedition is working with One world Design on the design of the new Diamond Jubilee Footbridge across the Thames between Battersea and Chelsea.

[20] In 2018, Expedition put forward a proposal for HS4Air, a 140-kilometre (87 mi) high-speed railway line in the south of England which would connect the High Speed 1 and High Speed 2 railway lines, create a rapid link between Heathrow and Gatwick Airports, and connect regional cities in Britain to the Channel Tunnel.

[22][23] Expedition has twice won the IStructE's Supreme Award for Structural Engineering, for the London 2012 Velodrome in 2011[24] and for the Infinity Bridge in 2009.

In 2012 Expedition was named Engineering Consultant of the Year at the Building Awards.