Founded in 1978 in the UK, the company has grown into an international business employing around 350 staff in 15 offices (London, Leeds, Edinburgh, Glasgow, Boston, Mexico City, Rome, Bologna, Madrid, San Juan, Bogota, Abu Dhabi, São Paulo, Santiago, Toronto, Vancouver, Montreal and Denver). Clients including government, operators, financiers, regulators, developers, international agencies and other interest groups in over 50 countries.

The company works across all modes of transport and markets including: aviation, bus & coach, cycling, highways, maritime, rail, toll roads & bridges, urban transit and walking. The services that Steer Davies Gleave provides cover the areas of: business advisory, design & marketing, development planning, economics, environment, green logistics, market research, modelling & forecasting, policy-led procurement, project development & appraisal, sustainable transport, transaction support, transport engineering, and transport policy & planning.