Contact
Offering New Engineering Possibilities

Get in touch! We service North America and the Pacific Rim from our West Coast offices. Additionally, Holmes Group has offices in Australia, New Zealand and the Netherlands.
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San Francisco
235 Montgomery Street
Suite 1250
San Francisco, CA 94104
P 415 693 1600
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Los Angeles
523 West 6th Street
Suite 1122
Los Angeles, CA 90014
P 213 481 5630
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Seattle
810 3rd Avenue
Suite 350
Seattle, WA 98104
P 206 709 5070
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Portland
555 SE MLK Jr. Boulevard
Suite 602
Portland, OR 97214
P 503 673 9323
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Boulder
100 Arapahoe Avenue
Suite 10
Boulder, CO 80302
P 303 309 1600
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San Diego
2869 Historic Decatur Road
San Diego, CA 92106
P 619 831 0801
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Holmes Group
Holmes Group is an organization of engineering and design specialists, each independently expert in our fields, who work together as an integrated whole.
Australia
Sydney
Brisbane
Melbourne
The Netherlands
Groningen
New Zealand
Auckland
Christchurch
Wellington
Hamilton
Hawke’s Bay
Queenstown
United States
San Francisco
Los Angeles
Boulder
Seattle
Portland
Our Portfolio
We explore new ideas and emergent technologies to challenge prescriptive codes, achieve cost savings, and reduce embodied carbon in our solutions.
See Our Work