Timeline

1820

Ames Crosta Company -

Founded and later acquired by Biwater Services, Ltd.

MWH Global
1844

T. Hawksley established practice in England -

Thomas Hawksley, one of the greatest 19th century water engineers – In his lifetime, he achieved international recognition for developing the first pressurized clean water supply available at the turn of a tap. This system saved countless lives when cholera struck Great Britain in 1848–9 and is one of the reasons the country’s health and prosperity accelerated ahead of many others in the following decades.

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MWH Global
1866

T&C Hawksley -

International engineering partnership established.

MWH Global
1890

Dodd & Dodd -

Public health engineering firm set up in UK.

MWH Global
1920

Harza Engineering -

Energy and environmental engineering established.

MWH Global
1934

JD & DM Watson -

Partnership formed for municipal wastewater treatment.

MWH Global
1945

James M. Montgomery (JMM) -

Environmental engineering consultancy firm specializing in water and wastewater established in California. Began construction management services.

MWH Global
1978

Watson Hawksley, Ltd. -

Joined to provide international environmental engineering consultancy.

MWH Global
1990

Montgomery Watson -

JMM merged with Watson Hawksley to become the global firm of Montgomery Watson.

MWH Global
1993

MWH Constructors established -

Starting from zero in the early 1990s, Constructors grew from US $1.5 million in 1994 to revenues of over US $200 million in just 10 years.

MWH Constructors
1996

Began Design-Build public utility work

MWH Constructors
2001

Montgomery Watson Harza -

Montgomery Watson merged with Harza to create global energy, utility, and environmental engineering company.

MWH Global
2003

MWH -

Montgomery Watson Harza became known as MWH and, eventually, MWH Global.

MWH Global
2010

Biwater Services Ltd -

MWH Constructors acquires UK water construction and engineering firm Biwater Services Ltd.

MWH Constructors
2015

Slayden -

MWH Constructors acquires Slayden Construction Group.

MWH Constructors
2016

Stantec Consulting, Inc. -

Stantec acquires MWH Global.

Stantec
2017

Stantec Construction Group Formed

MWH Constructors
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