Breathe Easy: We are the Air Quality Experts

We are air quality experts, guiding industry clients and moving projects forward for more than 30 years. Bison Engineering knows the environmental regulatory landscape and how best to get you where you need to be. And we know your industry, what you are trying to achieve, and the challenges you face. This combination makes us highly effective in delivering the environmental services you need to maximize efficiency.




We identify the rules that
do and don't apply to your
unique universe. Then we
help keep you in


We’ve got you covered all the way. We’ll help you site, design, purchase, install, ensure quality data recovery, audit, collect data, and report.

Stack Testing

In addition to collecting quality data to demonstrate compliance, we can help improve your processes to reduce waste and improve results.

Other Services

As trusted members of their teams, many of our clients rely on us to help address all their environmental compliance requirements.

Bison has joined forces with EEMC/EMRC!

Bison purchased EEMC/EMRC late in 2015. The combination expands our ability to service clients from our Billings, Montana office and adds consulting and ambient monitoring service capabilities for EEMC’s Tucson, Arizona office. In addition, Bison can now provide EMRC gas flow monitoring equipment and design to existing clients and new clients around the world.

our mission

Through innovative engineering and scientific excellence,

we offer our clients a “Clear Advantage” in achieving the delicate balance between a healthy environment and a thriving industrial economy.