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Langan Competitors and Similar CompaniesClear all

Langan's competitors and similar companies include Brown and Caldwell, ERM and Ethisphere.

	Langan Langan Engineering, Environmental, Surveying and Landscape Architecture is a company providing engineering and environmental consulting services.	Brown and Caldwell Brown and Caldwell is an engineering consulting firm.	ERM The ERM International Group is a company that provides environmental, health, safety, and social consulting services.	Ethisphere Ethisphere is a company that provides ethics and compliance program solutions.
Founding Date	Founding Date 1970	Founding Date 1947	Founding Date 1971	Founding Date 2007
Type	Type Private	Type Private	Type Subsidiary	Type Private
Tags	Tags Business Products & Services compliance construction & design engineering sustainability	Tags Business Products & Services construction management facilities management management consulting	Tags Business Products & Services compliance management consulting sustainability	Tags Business Products & Services compliance
Locations	Locations Parsippany-Troy Hills, US HQ Calgary, CA Athina, GR Panamá, PA Abu Dhabi, AE Dubai, AE London, GB see more	Locations Walnut Creek, US HQ Burnaby, CA Hagåtña, GU Alexandria, US Andover, US Blue Ash, US Boise, US see more	Locations London, GB HQ Buenos Aires, AR Adelaide, AU Brisbane City, AU Melbourne, AU Newcastle, AU Sydney, AU see more	Locations Scottsdale, US HQ
Employees	Employees 2,0965% increase	Employees 2,486	Employees 7,4041% decrease	Employees 67
Operating ⚠
Countries	Countries 100 (May, 2022)	Countries N/A	Countries 38 (Aug, 2023)	Countries N/A
Services Provided	Services Provided N/A	Services Provided 14 (Sep, 2020)	Services Provided 10 (Aug, 2023)	Services Provided N/A
Trademarks (US)	Trademarks (US) 3 (May, 2022)	Trademarks (US) N/A	Trademarks (US) N/A	Trademarks (US) 13 (Oct, 2025)