Fourteen of the 26 largest engineering firms in New Hampshire are proud Plan NH members, according to the New Hampshire Business Review Book of Lists. This strong representation reflects Plan NH’s reach and relevance within the state’s engineering community, as well as the value firms place on being part of a collaborative, cross-sector network.
Engineering firms play a critical role in shaping the built environment—from infrastructure and transportation systems to site design and environmental stewardship. Their engagement with Plan NH underscores a shared commitment to thoughtful planning, innovative design, and sustainable development practices that benefit communities across the state.
By working together through Plan NH, these industry leaders are helping to advance resilient, vibrant places throughout New Hampshire. It’s a powerful reminder that meaningful progress happens through partnership, and that the collective expertise of our members continues to make a lasting impact statewide.
Thank you to these engineering firms for supporting our mission and work:
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- #1 Hoyle, Tanner & Associates
- #2 Wright-Pierce
- #3 Greenman-Pedersen Inc.
- #4 VHB
- #5 GZA GeoEnvironmental
- #7 TFMoran
- #9 Sanborn, Head & Associates
- #12 Weston & Sampson Engineers
- #14 Tighe & Bond
- #16 Fuss & O’Neill
- #17 The Turner Group
- #18 Nobis Group
- #21 HEB Engineers
- #22 Horizons Engineering
See the complete NHBR Biz List here.