History and Parent Companies

Hatch Mott MacDonald is an award-winning full-service engineering firm. With headquarters in Iselin, New Jersey, and 77 offices across Canada and the US, HMM serves public and private clients across North America.

In addition to its own staff of 3,000, HMM draws on the experience, resources, and the 25,000 worldwide staff of its two parent companies, Hatch and Mott MacDonald.


Hatch Mott MacDonald

In 1996, Hatch Ltd. and the Mott MacDonald Group created Hatch Mott MacDonald in order to take advantage of engineering opportunities in North America.

Hatch Mott MacDonald initially focused on the transportation market, providing services in tunnels, rail and transit, rail systems, bridges and highways, and aviation. The company grew rapidly, gaining a reputation as one of North America’s premier tunneling and transit engineering firms.

In 2001, Hatch Mott MacDonald expanded its expertise by acquiring Killam Associates, a water, wastewater, and environmental services firm. With roots dating back to 1937, Killam brought a strong presence in the northeastern and southeastern US.

HMM has won awards for projects including Calgary West Light Rail Transit, York Spadina Subway Extension (Toronto), Sea-to-Sky Highway Improvement (Vancouver to Whistler), and San Francisco–Oakland Bay Bridge. Current projects include East Side Access (New York City) and the Alaskan Way Tunnel (Seattle).

Hatch Mott MacDonald has continued to grow, quadrupling its revenue over the last decade — primarily through organic growth. Strategic acquisitions have strengthened our presence in selected geographic areas and market sectors. Today, HMM’s staff operates from locations throughout North America.



Mott MacDonald Group
Headquartered in Croydon, UK, Mott MacDonald was founded in 1902 (as Mott & Hay) by engineers Basil Mott and David Hay. Since 1888, both men had worked together on the City and South London Railway, under the direction of Sir Benjamin Baker and James Henry Greathead. Greathead was known as the foremost soft-ground tunneler of his time, while Baker was famous for his work on London’s District Railway, the Forth Bridge in Scotland, and the first Aswan Dam, which was completed in 1902.

The Mott MacDonald Group gained its current name in 1989, when Mott, Hay & Anderson (as it was then called) merged with Sir M. MacDonald & Partners, a company with its own connection to the original Aswan Dam. As Advisor to Egypt’s Ministry of Public Works, Sir Murdoch MacDonald was involved in the construction and the first heightening of the dam, which was completed in 1912. In 1921 he returned to England, entered a partnership with Archibald MacCorquodale, and continued his work in hydroelectric development, including the second heightening of the Aswan Dam, completed in 1933.

Mott MacDonald has expanded over the years through the acquisition of companies including Husband and Company, James Williamson & Partners, and Ewbank Preece (1994), Cambridge Education Associates (2000), Dalal Consultants (2001), Franklin + Andrews (2002), HLSP (2003), Fulcrum Consulting (2009), and Hughes Trueman (2010). The company now spans the globe, with around 150 company, site, and associate offices in over 120 countries.


Hatch Ltd.
Headquartered in Mississauga, Canada, Hatch Ltd. was founded in Toronto in 1955, as W.S. Atkins & Associates. The company was first involved in subway tunneling and other civil engineering projects, and expanded into metallurgy when Gerald Hatch joined in 1958.

Dr. Hatch led the renamed company until his retirement in 1990. Taking a hands-on approach, he developed new industrial processes and published many papers in the fields of high-temperature and metallurgical engineering. Dr. Hatch recognized the potential of using direct reduced iron as a feedstock for making steel in electrical furnaces, and his company won the Governor General Award for Excellence for implementing that process. In 2011, Dr. Hatch was inducted into the Canadian Science and Engineering Hall of Fame.

Hatch today provides consulting, operations support, technologies, process design, and project and construction management to clients in three principal sectors: mining and metals, energy, and infrastructure. Beginning in 1996, Hatch began an expansion program with the acquisition of companies including Billiton Engineering (1996), Rescan Mining (1998), BHP Engineering (1999), Kaiser Engineers (2000) and Acres International (2004).

In 2013, Hatch was named one of Canada’s Best Managed companies for the sixth consecutive year.

Photo of the Forth Bridge by George Gastin, 2008.