Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,518 pages of information and 233,949 images on early companies, their products and the people who designed and built them.
1885 William Barclay Parsons founded the company in New York City that would later become Parsons Brinckerhoff, a leading infrastructure consultancy.
Early projects included the design of the original New York City subway system and the Cape Cod Canal.
1995 Acquired Merz and McLellan
1998 Acquired Rust, Kennedy & Donkin
2009 Acquired by Balfour Beatty
2014 Acquired by WSP