Founded in 1895, Malcolm Pirnie is a privately owned environmental engineering firm. It maintains more than 60 offices throughout the world. The firm has a staff of over 1,700 employees. Malcolm Pirnie provides dam engineering, drinking water planning, air quality and asset management, and real estate and infrastructure development services. It offers facility design, hydrogeology and information management solutions. The firm provides construction, environmental consultation, risk assessment, wastewater treatment, remediation, modeling, and odor and program management services. The firm serves wastewater and energy utilities and the municipal, state and federal government. Malcolm Pirnie also offers services to the chemical, pharmaceutical, transportation, and oil and gas industries.

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