Barr is an engineering and environmental consulting firm, bringing services to clients across North America and around the world for over a century.

Barr integrates engineering and environmental consulting services to provide the real-world solutions our clients need.

Providing exceptional service is Barr’s fundamental focus, and solving clients’ complex problems is what makes us tick. In a world of experts, our engineering and environmental team brings even more to …

Barr's environmental & engineering specialties provide services to clients & teams in industry sectors such as power, refining, mining, and manufacturing.

From our many office locations across North America, Barr is able to handle all of your engineering & environmental consulting needs.

Serving our clients Barr’s Salt Lake City staff serve a wide range of industries, including mining, fuels, and manufacturing, as well as the public sector. We’re active members of professional organizations …

To provide environmental consulting & engineering services to clients at a distance from our fully staffed offices, Barr maintains project offices close to key project sites.

From our Duluth office and more than a dozen additional offices around North America, Barr is able to handle all of your engineering & environmental consulting needs.

Getting our start Barr’s Denver office opened in May 2019 with the acquisition of Marquez Environmental Services, an environmental consulting firm specializing in air permitting and compliance services for …

Getting our start Established in October 2023, our Albuquerque office got its start when the staff of Ecosphere joined Barr. Ecosphere, an environmental consulting firm, specialized in environmental …