Halcrow Group Limited was a multinational engineering consultancy company, based in the United Kingdom. The UK-based consultancy specialised in the provision of planning, design and management services for infrastructure development worldwide. With interests in transportation, water, maritime and property, the company undertook commissions in over 70 countries . In 2011, the company was acquired by US firm CH2M Hill, and in 2013 it was announced that the Halcrow would be discontinued.The parent subsequently (2015) rebranded the whole group to CH2M.