Providing innovative solutions for a better future

You can rely on our team of consultants to address your environmental challenges
in every market that we serve, worldwide.

Technical excellence, true collaboration, and innovation are the foundation
of every project we complete.

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HMMH is a trusted leader in the study, assessment, and mitigation of the impacts of new and existing transportation projects on communities.


Recent Blog Posts NASA’s Urban Air Mobility Noise Technical Paper – Setting the Stage for Future Work in UAM

As a member of NASA’s Urban Air Mobility Noise Working Group (UNWG), HMMH is proud to have contributed to the recently…

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Recent News Sustainable Arts & Crafts Webinar to Celebrate 50th Anniversary of Earth Day

In celebration of the 50th Anniversary of Earth Day, HMMH hosted a sustainable craft and learn webinar for house bound kids.…

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HMMH has supported Massport for over 30 years providing technical analyses for a wide variety of projects at our airports. I confidently recommend HMMH to provide high quality environmental services in a timely and efficient manner. They are truly experts in their field.

- Senior Project Manager, Massachusetts Port Authority

HMMH did a first-rate job. The results of the study were exactly what we were looking for to help strike a balance between the rights of residents and the need for a local business to thrive and foster the area’s tourism industry. HMMH would be my first call when faced with a similar problem in the future.

- Page County Administrator, Shenandoah, VA

HMMH’s efforts were instrumental in the Authority’s ultimate success in providing an outstanding project that exceeded FAA requirements, met our noise-impacted community’s expectations and stayed within our budget. I would highly recommend HMMH to any airport that demands a successful, transparent and quality project.

- Former (Retired) Director, Airport Noise Mitigation, San Diego Regional Airport Authority

HMMH's understanding of state and federal requirements along with their responsiveness to project needs make HMMH the gold standard in their field.

- Project Manager, Stantec

HMMH is an extremely professional firm with excellent response time. Work is always of the highest caliber. The firm is trusted and respected by our citizens, staff and the Board of County Commissioners.

- Airport Director, Martin County Airport

HMMH consistently provided high quality products and their advice was invaluable in guiding the JPDO's effort to frame important policy issues to key government decision makers.

- Project Manager, JPDO

There is no other firm, in my opinion, that ranks as high as HMMH in their knowledge and expertise in all noise matters both nationally and internationally.

- Former (Retired) Director, Office of Environmental Services, Maryland Aviation Administration