Company lists · Data refreshed October 2026

Top 25 Living building challenge consultants based in the United States

RevenueBase identified 235 company matches for living building challenge consultants associated with the United States as of October 2026 and tracks 2,975 professional contacts across them, including 995 with verified work emails. Seattle is the largest hub.

This list covers company matches for living building challenge consultants associated with the 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 October 17, 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 Oct 17, 2026 How this list was built
235Companies
2,975Contacts tracked
995Verified emails
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The 25 largest living building challenge consultants based in the United States

Ranked by team size
Top 25 of 235 company matches for living building challenge consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAustin, TX, United StatesHQ recorded Oct 17, 2026n/a1,150 contacts →

Exact match

“OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2Exact matchNorwalk, CT, United StatesHQ recorded Oct 17, 202651-200144 contacts →

Exact match

“For over five decades, we’ve been at the forefront of transforming the built environment to be more energy efficient, accessible, healthy, and resilient.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3Exact matchMonroe, OH, United StatesHQ recorded Oct 17, 2026201-500139 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4Exact matchCarlsbad, CA, United StatesHQ recorded Oct 17, 202651-20092 contacts →

Exact match

“Verdani Partners is a full service sustainability consulting firm specialized in corporate sustainability, LEED certification and greening and retrofitting existing buildings.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 17, 202651-20088 contacts →

Exact match

“GSBS is at the forefront of architecture's bright, sustainable future, fostering healthier lives, more positive interactions and a brighter environment.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
6Exact matchDenver, CO, United StatesHQ recorded Oct 17, 202611-5077 contacts →

Exact match

“Group14 Engineering is a Denver-based consulting firm committed to inspiring better buildings where people thrive.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7Exact matchPortland, OR, United StatesHQ recorded Oct 17, 202651-20059 contacts →

Exact match

“Recognized for advanced subject matter expertise, wide-ranging technical resources, creative problem-solving, and excellence in professional practice, Brightworks Sustainability…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8Exact matchAtlanta, GA, United StatesHQ recorded Oct 17, 202651-20059 contacts →

Exact match

“At Epsten Group, we pride ourselves on being a pioneer for sustainability in the built environment.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9Exact matchOrange, CA, United StatesHQ recorded Oct 17, 202651-20048 contacts →

Exact match

“VCA Green provides a full scope of green building consulting and commissioning services, including LEED®, GreenPoint Rated, CALGreen compliance, HERS, commercial energy audits and…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10Exact matchAtlanta, GA, United StatesHQ recorded Oct 17, 202611-5048 contacts →

Exact match

“Sustainable Investment Group, LLC (SIG) is a full-service sustainable building consulting firm that provides environmentally focused solutions to design, construction, and real…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11Exact matchEdmonds, WA, United StatesHQ recorded Oct 17, 202611-5042 contacts →

Exact match

“BEE provides a comprehensive range of services dedicated to designing, inspecting, and testing buildings with a specific focus on weatherization and air barrier, energy efficiency…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12Exact matchAtlanta, GA, United StatesHQ recorded Oct 17, 202611-5041 contacts →

Exact match

“Ecoworks Studio is an internationally recognized firm in the practice of integrated design principles, sustainability and wellness consulting services.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13Exact matchSeattle, WA, United StatesHQ recorded Oct 17, 202611-5028 contacts →

Exact match

“Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14Exact matchBaltimore, MD, United StatesHQ recorded Oct 17, 202611-5026 contacts →

Exact match

“About Lorax Partnerships Lorax Partnerships provides sustainability and green building consulting services to building developers, owners, and occupants, as well as business…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15Exact matchRichmond, VA, United StatesHQ recorded Oct 17, 202611-5025 contacts →

Exact match

“Viridiant is a non-profit organization advancing sustainable building practices through education, consultation, and certification across the Mid-Atlantic and Southeast.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Oct 17, 202611-5023 contacts →

Exact match

“BarlisWedlick is an award-winning, full-service firm known for designing expressive, sustainable, and soulful places to live, work, and gather.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17Exact matchSeattle, WA, United StatesHQ recorded Oct 17, 202611-5022 contacts →

Exact match

“O'Brien360 is a nationally recognized leader in the sustainable building community.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18Exact matchRichmond, VA, United StatesHQ recorded Oct 17, 202611-5022 contacts →

Exact match

“Sustainable Design Consulting, LLC (SDC) is an award-winning, prolific green building consulting and training firm dedicated to bettering our built environment through sustainable…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19Exact matchBoston, MA, United StatesHQ recorded Oct 17, 202611-5020 contacts →

Exact match

“Stack + Co.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20Exact matchPhiladelphia, PA, United StatesHQ recorded Oct 17, 202611-5020 contacts →

Exact match

“Re:Vision is a deep green architecture and sustainability consulting practice dedicated to the design of high-performance buildings and sustainable communities.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21Exact matchAurora, CO, United StatesHQ recorded Oct 17, 202611-5019 contacts →

Exact match

“Energetics is a boutique energy, sustainability, and daylighting consulting firm founded in 2015 with the guiding principal that all buildings can be made more energy efficient…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22Exact matchDecatur, GA, United StatesHQ recorded Oct 17, 202611-5019 contacts →

Exact match

“SK Collaborative works with developers, builders, remodelers, contractors, architects, and homeowners to implement cost-effective techniques that improve building performance.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23Exact matchChicago, IL, United StatesHQ recorded Oct 17, 202611-5015 contacts →

Exact match

“Eco Achievers helps property owners smartly transform their buildings into healthy, resilient and efficient places.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 17, 202611-5015 contacts →

Exact match

“At Lloyd Architects, we take the time to learn how our clients live and work, knowing that our mutual vision ensures a uniquely tailored project that fits our clients’ lifestyles.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25Exact matchNorth Adams, MA, United StatesHQ recorded Oct 17, 202611-5014 contacts →

Exact match

“Every project leaves behind valuable knowledge.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase

Showing 25 of 235 living building challenge consultants based in the United States

See the full list, filter by size, metro and specialty, and access 995 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Living building challenge consultants based in the United States at a glance

As of Oct 17, 2026
33.4%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
4.7%Largest-city concentration · Seattle
Oct 17, 2026Page data refreshed

Companies by employee count

1-10
163
11-50
63
51-200
7
201-500
1
501-1,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 235 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 the United States whose business descriptions match “living building challenge consultants” 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 995 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 October 17, 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.

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 “living building challenge consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many living building challenge consultants are there based in the United States?

RevenueBase identified 235 company matches for living building challenge consultants associated with the United States as of October 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?

OLA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most living building challenge consultants?

Seattle leads with 11 company records, followed by Portland (10) and Denver (6).

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 995 professional contacts with verified work emails tracked across these 235 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 October 17, 2026.

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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.