Company lists · Data refreshed September 2026

Top 17 Sustainable architecture firms based in Boulder, United States

Name: Sustainable architecture firms based in Boulder, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 31 companies tracked

RevenueBase identified 31 company matches for sustainable architecture firms associated with Boulder, United States as of September 2026 and tracks 257 professional contacts across them, including 95 with verified work emails. Across the United States, New York is the largest hub for this category (282 companies); Boulder has 31.

This list covers company matches for sustainable architecture firms associated with Boulder, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 18, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 18, 2026 How this list was built

31Companies

257Contacts tracked

95Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 17 largest sustainable architecture firms based in Boulder, United States

Ranked by team size

Top 17 of 31 company matches for sustainable architecture firms based in Boulder, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 18, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Z Design Group LLC	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	58 contacts →
	Exact match “Z Design Group provides comprehensive services encompassing architecture, planning and interior design.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
2	Coburn	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	35 contacts →
	Exact match “Coburn creates great places for people, for communities, for life and for work.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
3	Sopher Sparn Architects	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	21 contacts →
	Exact match “We are a Colorado-based architecture firm known for our innovative planning and design solutions.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
4	Arch11	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	15 contacts →
	Exact match “At Arch11, architecture is a wildly specific art revealing meaning between space, place, and people.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
5	Rodwin Architecture	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	14 contacts →
	Exact match “Rodwin Architecture is a Boulder-based, award-winning architecture and design team specializing in high-quality, custom new homes in and around Boulder, Colorado.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
6	Workshop8	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	1-10	12 contacts →
	Exact match “WORKSHOP8 is more than an architecture firm.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
7	Caddis Collaborative	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	11 contacts →
	Exact match “Caddis is a multidisciplinary design firm that explores ways of living more lightly upon our earth in beautiful, healthy environments.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
8	Cottonwood Custom Builders	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	11 contacts →
	Exact match “Motivated by his passion for sustainability, Jeff Hindman founded Cottonwood Custom Builders in 1995.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
9	Markel Homes	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	10 contacts →
	Exact match “We design and build quality homes that people love.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
10	Skycastle Construction	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	8 contacts →
	Exact match “Founded in Boulder in 2001, Skycastle Construction specializes in bespoke homes for discerning clients seeking the highest standards of sustainability, craftsmanship, and service.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
11	HMH Architecture Interiors	Exact match	Boulder, United StatesHQ recorded Sep 18, 2026	1-10	7 contacts →
	Exact match “HMH Architecture + Interiors designs houses with beauty and functionality.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
12	Bldg.Collective Architecture Design	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	1-10	5 contacts →
	Exact match “ABOUT bldg.collective was founded in 2009 with the purpose of approaching the practice of architecture in a unique way.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
13	Habilis Designbuild	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	1-10	3 contacts →
	Exact match “Habilis DesignBuild is dedicated to creating unique, sustainable dwellings tailored to your needs as well as the needs of the planet.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
14	Clearwater Design Studio	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	1-10	3 contacts →
	Exact match “Founded in 2022 by Architect Kyle Callahan, Clearwater Design Studio is a forward reaching Architectural practice based in Boulder, Colorado, springing forth from the evolution of…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
15	PEH Architects	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	11-50	1 contacts →
	Exact match “PEH ARCHITECTS, INC is an architecture & planning company based out of 1319 SPRUCE ST, Boulder, Colorado, United States.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
16	Verso LLC	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	1-10	1 contacts →
	Exact match “Verso is a small architecture and interiors firm in Boulder, specializing in residential and light commercial design, with a focus on sustainability and preservation.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
17	Constructive Alternatives	Exact match	Boulder, CO, United StatesHQ recorded Sep 18, 2026	1-10	1 contacts →
	Exact match “We bring over four decades of experience creating award-winning, eclectic, green-built homes.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “sustainable architecture firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 17 of 31 sustainable architecture firms based in Boulder, United States

See the full list, filter by size, metro and specialty, and access 95 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Sustainable architecture firms based in Boulder, United States at a glance

As of Sep 18, 2026

37.0%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

Email recency for this list is measured across the whole United States list rather than for Boulder, so it is reported there. Company counts and contact totals on this page are exact for Boulder, over 31 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Boulder, United States whose business descriptions match “sustainable architecture firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 95 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 18, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Sustainable architecture firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sustainable architecture firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable architecture firms are there based in Boulder, United States?

RevenueBase identified 31 company matches for sustainable architecture firms associated with Boulder, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Z Design Group LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most sustainable architecture firms?

New York leads the United States with 282 company records, followed by Los Angeles (131) and Seattle (128). Boulder has 31.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 95 professional contacts with verified work emails tracked across these 31 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 31 sustainable architecture firms based in Boulder, United States. Start with a free account, no credit card.

Download this list →

Related lists

Sustainable architecture firms by geography

Browse the directory

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.