Company lists · Data refreshed September 2026

Top 25 Sustainability and climate change consulting firms based in Los Angeles, United States

Name: Sustainability and climate change consulting firms based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 67 companies tracked

RevenueBase identified 67 company matches for sustainability and climate change consulting firms associated with Los Angeles, United States as of September 2026 and tracks 1,086 professional contacts across them, including 571 with verified work emails. Across the United States, New York is the largest hub for this category (198 companies); Los Angeles has 67.

This list covers company matches for sustainability and climate change consulting firms associated with Los Angeles, 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 21, 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 21, 2026 How this list was built

67Companies

1,086Contacts tracked

571Verified emails

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The 25 largest sustainability and climate change consulting firms based in Los Angeles, United States

Ranked by team size

Top 25 of 67 company matches for sustainability and climate change consulting firms based in Los Angeles, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Psomas	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	501-1,000	748 contacts →
	Exact match “Our award-winning projects are produced through innovation, creativity, and technical expertise.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Partner Energy	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	51-200	57 contacts →
	Exact match “Partner Energy, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Verdical Group	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	11-50	29 contacts →
	Exact match “Established in 2012, Verdical Group has developed a nationally known brand and industry leading reputation as a sustainability consulting firm focused on decarbonizing the built…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Viridan Group	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	11-50	23 contacts →
	Exact match “Viridan Group is an executive search firm at the forefront of two of the most dynamic industries shaping the modern world: Energy and Data Centers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Impact Sciences	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	11-50	18 contacts →
	Exact match “Informing communities and creating a clear path to understanding are at the core of what we do at Impact Sciences.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Leading Edge	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	11-50	17 contacts →
	Exact match “Leading Edge is a California based sustainability consultancy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Ecomotion	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	10 contacts →
	Exact match “EcoMotion provides sustainability advising and consulting cities, counties, utilities, corporations, and campuses to help them achieve their energy and environmental goals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	ALL About Waste	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	11-50	9 contacts →
	Exact match “Over 21 Years of Expertise in Sustainability Solutions At All About Waste, we are an award-winning global leader in zero-waste and circular economy solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Argento Graham	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	7 contacts →
	Exact match “Argento/Graham offers strategic and technical green building consulting services to all stakeholders involved in the development and operation of new and existing buildings.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Bespoke ESG	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	6 contacts →
	Exact match “Bespoke ESG gets companies through the sustainability work that has a deadline.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Ethowork Consulting, LLC	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	6 contacts →
	Exact match “Thank you for visiting our page.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	NEW Theme	Exact match	Los Angeles, United StatesHQ recorded Sep 21, 2026	1-10	6 contacts →
	Exact match “Expanding upon the premise of sustainability, NEW THEME architecture seeks to foster a dialogue between green ideas and their articulation in radical new forms.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Labeling Sustainability INC	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	11-50	5 contacts →
	Exact match “At Labeling Sustainability, we are dedicated to guiding manufacturers, their suppliers and their distributors through the intricate journey of environmental accountability.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Okapi Architecture INC	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	4 contacts →
	Exact match “Okapi is passionate about bringing the design teams to the world of sustainability and energy efficiency by collaborating with public utility's fundings, such as Savings By Design.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Earthara	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	4 contacts →
	Exact match “We work across sectors, partnering with clients ranging from startups and small businesses to Fortune companies.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	ZC Sustainability	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	3 contacts →
	Exact match “We are a collaborative of trusted advisors who are committed to addressing climate change by helping create a sustainable, high performing, resilient, and equitable built…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Insight Energy Consulting	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	3 contacts →
	Exact match “At Insight Energy Consulting, our mission is to innovate and lead in energy efficiency and sustainability.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Livingworks	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	11-50	2 contacts →
	Exact match “LivingWorks is a forward thinking firm focused on creative, practical, and cost-effective sustainable solutions for commercial and institutional buildings, both public and private.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	319climate	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “319Climate is a boutique consulting and innovation dedicated to accelerating the transition to a low carbon, climate resilient and equitable future.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Mimeos Sustainability Consultants	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “Mimeos is the premier sustainability consultancy dedicated to designing & building solar energy systems with an "Efficiency-First" Approach.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Bison Tiger	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “We are a CREATIVE agency, PRODUCTION house, and SUSTAINABILITY consultancy with a unique perspective and skill set.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Industrymc	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	11-50	1 contacts →
	Exact match “IndustryMC is a boutique Los Angeles-based management consulting firm that unlocks cost savings, efficiency gains and climate solutions for industrial facilities.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Accelerating Purpose	Exact match	Los Angeles, United StatesHQ recorded Sep 21, 2026	1-10	1 contacts →
	Exact match “Accelerating Purpose is an impact consulting firm whose mission is to collaborate with purpose-driven business leaders to activate their most pressing and compelling social and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Sustainable Design Collective INC SDC	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	1 contacts →
	Exact match “Sustainable Design Collective (SDC) is a design-led consultancy operating across advisory, project delivery, and communications, focused on creating healthier and more sustainable…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	ONE Small Step Sustainability Consulting	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 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 “sustainability and climate change consulting 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 25 of 67 sustainability and climate change consulting firms based in Los Angeles, United States

See the full list, filter by size, metro and specialty, and access 571 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainability and climate change consulting firms based in Los Angeles, United States at a glance

As of Sep 21, 2026

52.6%Verified-email coverage

16.2Average contacts per company

1-10Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 67 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 Los Angeles, United States whose business descriptions match “sustainability and climate change consulting 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 571 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 21, 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.

Sustainability and climate change consulting 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 “sustainability and climate change consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainability and climate change consulting firms are there based in Los Angeles, United States?

RevenueBase identified 67 company matches for sustainability and climate change consulting firms associated with Los Angeles, 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?

Psomas 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 sustainability and climate change consulting firms?

New York leads the United States with 198 company records, followed by Houston (79) and Washington (77). Los Angeles has 67.

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 571 professional contacts with verified work emails tracked across these 67 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 21, 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.