Company lists · Data refreshed September 2026

Top 25 Sustainability consultancy firms based in Los Angeles, United States

RevenueBase identified 78 sustainability consultancy firms headquartered in Los Angeles, United States as of September 2026 and tracks 512 professional contacts across them, including 139 with verified work emails. Across the United States, New York is the largest hub for this category (201 companies); Los Angeles follows with 78.

This list covers sustainability consultancy firms headquartered in Los Angeles, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
78Companies
512Contacts tracked
139Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest sustainability consultancy firms based in Los Angeles, United States

Ranked by team size
Top 25 of 78 sustainability consultancy firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability consultancy firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202651-20057 contacts →

Indirect evidence

“Partner Energy, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202611-5029 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-1020 contacts →

Indirect evidence

“OUR MISSION Our mission is to facilitate a paradigm shift in the entertainment and advertising industries toward sustainable production and event practices as well as inspire…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202611-5018 contacts →

Indirect evidence

“Informing communities and creating a clear path to understanding are at the core of what we do at Impact Sciences.”

Source: RevenueBase Database · checked Sep 29, 2026
5Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202611-5017 contacts →

Strong evidence

“Leading Edge is a California based sustainability consultancy.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-1010 contacts →

Partial evidence

“EcoMotion provides sustainability advising and consulting cities, counties, utilities, corporations, and campuses to help them achieve their energy and environmental goals.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202611-509 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“Argento/Graham offers strategic and technical green building consulting services to all stakeholders involved in the development and operation of new and existing buildings.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-106 contacts →

Partial evidence

“Bespoke ESG gets companies through the sustainability work that has a deadline.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-106 contacts →

Indirect evidence

“Thank you for visiting our page.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceLos Angeles, United StatesHQ checked Sep 29, 20261-106 contacts →

Partial evidence

“Expanding upon the premise of sustainability, NEW THEME architecture seeks to foster a dialogue between green ideas and their articulation in radical new forms.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202611-505 contacts →

Indirect evidence

“Progressive green event planning that blends style and taste with environmental responsibility.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202611-505 contacts →

Partial evidence

“At Labeling Sustainability, we are dedicated to guiding manufacturers, their suppliers and their distributors through the intricate journey of environmental accountability.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“We work across sectors, partnering with clients ranging from startups and small businesses to Fortune companies.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“At MG Consulting Firm, we are more than consultants, we are your global partner in operational excellence and sustainable growth.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“At Insight Energy Consulting, our mission is to innovate and lead in energy efficiency and sustainability.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202611-502 contacts →

Indirect evidence

“LivingWorks is a forward thinking firm focused on creative, practical, and cost-effective sustainable solutions for commercial and institutional buildings, both public and private.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“319Climate is a boutique consulting and innovation dedicated to accelerating the transition to a low carbon, climate resilient and equitable future.”

Source: RevenueBase Database · checked Sep 29, 2026
20Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-102 contacts →

Strong evidence

“Mimeos is the premier sustainability consultancy dedicated to designing & building solar energy systems with an "Efficiency-First" Approach.”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-102 contacts →

Strong evidence

“We are a CREATIVE agency, PRODUCTION house, and SUSTAINABILITY consultancy with a unique perspective and skill set.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 202611-501 contacts →

Indirect evidence

“IndustryMC is a boutique Los Angeles-based management consulting firm that unlocks cost savings, efficiency gains and climate solutions for industrial facilities.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Founded by Rosalind Helfand, PAJE Consulting (Policy | Action | Justice | Environment) takes a collaborative approach, from the local to the global - to moving the needle towards…”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceLos Angeles, United StatesHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Sustainable Design Collective (SDC) is a design-led consultancy operating across advisory, project delivery, and communications, focused on creating healthier and more sustainable…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 78 sustainability consultancy firms based in Los Angeles, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 139 reachable decision-makers.

Free signup · no credit card

View the full list →

Sustainability consultancy firms based in Los Angeles, United States at a glance

As of Sep 29, 2026
27.1%Verified-email coverage
6.6Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
62
11-50
13
51-200
2
1,001-5,000
1

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 78 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sustainability consultancy firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Los Angeles, United States whose own description of what they do matches “sustainability consultancy firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sustainability consultancy firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among sustainability consultancy firms, and records with no verified work email. Companies headquartered outside Los Angeles are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 139 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sustainability consultancy firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sustainability consultancy firms are there based in Los Angeles, United States?

RevenueBase identified 78 sustainability consultancy firms headquartered in Los Angeles, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Partner Energy, headquartered in Los Angeles, tops this list with the largest team on record.

Which city in the United States has the most sustainability consultancy firms?

New York leads the United States with 201 headquartered companies, followed by Los Angeles (78) and Houston (77).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 139 verified decision-maker contacts tracked across these 78 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 78 sustainability consultancy firms based in Los Angeles, United States. Start with a free account, no credit card.

Download this list →

Related lists

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 Smart Search, 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.