Company lists · Data refreshed September 2026

Top 25 Climate and environmental consulting firms based in San Francisco, United States

Name: Climate and environmental consulting firms based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 62 companies tracked

RevenueBase identified 62 company matches for climate and environmental consulting firms associated with San Francisco, United States as of September 2026 and tracks 2,595 professional contacts across them, including 1,034 with verified work emails. Across the United States, New York is the largest hub for this category (114 companies); San Francisco has 62.

This list covers company matches for climate and environmental consulting firms associated with San Francisco, 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

62Companies

2,595Contacts tracked

1,034Verified emails

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The 25 largest climate and environmental consulting firms based in San Francisco, United States

Ranked by team size

Top 25 of 62 company matches for climate and environmental consulting firms based in San Francisco, 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	Climatebase	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	n/a	759 contacts →
	Exact match “Climatebase is the community for climate & sustainability professionals, and the world's #1 platform for green jobs.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Environmental Science Associates	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	501-1,000	732 contacts →
	Exact match “ESA is a 100% employee-owned environmental consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Climate Policy Initiative	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	51-200	288 contacts →
	Exact match “CPI is an analysis and advisory organization with deep expertise in finance and policy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Energy And Environmental Economics, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	51-200	156 contacts →
	Exact match “Energy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	STOK	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	51-200	141 contacts →
	Exact match “Stok leads organizations to decarbonize now.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	KWH Analytics	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	43 contacts →
	Exact match “kWh Analytics, a leading Climate Insurance provider, underwrites property insurance and revenue firming products for renewable energy assets.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	CEA Consulting	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	41 contacts →
	Exact match “CEA Consulting supports a wide range of philanthropies, nonprofits, businesses, and government agencies in effectively tackling urgent environmental challenges-from climate change…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Panorama Environmental, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	40 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Energy Innovation Policy And Technology LLC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	51-200	36 contacts →
	Exact match “Energy Innovation Policy & Technology LLC® is an energy and environmental policy firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	SRT Consultants	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	34 contacts →
	Exact match “A water resources and environmental engineering consulting firm based in the San Francisco Bay Area, with a second office location in Seattle, WA.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Leighfisher	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	201-500	32 contacts →
	Exact match “LeighFisher is a global management consulting firm that combines deep market-specific knowledge with specialized expertise in business advisory, facility and operational planning…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Applied Technology & Science A-T-S	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	25 contacts →
	Exact match “Applied Technology & Science (A-T-S) is an engineering and environmental consulting firm in San Francisco focused on water and energy delivery infrastructure, natural resource…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Civic Edge Consulting	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	23 contacts →
	Exact match “Founded in 2003, Civic Edge is a WBE/SBE/LBE/DBE-certified firm providing award-winning strategic communications, authentic community engagement, and responsive public relations…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Biomaas INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	20 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Silvestrum Climate Associates	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	1-10	15 contacts →
	Exact match “Silvestrum Climate Associates (SCA) provides integrated approaches for climate mitigation in coastal settings.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Aurora Environmental Services, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	13 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Pathways Climate Institute	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	1-10	13 contacts →
	Exact match “We Help communities create pathways to climate resilience.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Climind	Exact match	San Francisco, United StatesHQ recorded Sep 21, 2026	11-50	10 contacts →
	Exact match “Climind - Mind for Climate, is an AI platform specializing in addressing climate and sustainability challenges for business Climind offers users comprehensive climate solutions…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Climatecheck	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	7 contacts →
	Exact match “ClimateCheck is the first definitive, easy-to-use platform to rate real estate based on expected changes to the world’s climate.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	ADH Environmental	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	7 contacts →
	Exact match “ADH Environmental (ADH) is an environmental engineering, consulting, and management services corporation, serving the public and private sectors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Healthy Building Science, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	1-10	5 contacts →
	Exact match “Healthy Building Science combines principles of green building and environmental science to offer a full range of services for both commercial and residential clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Sapere Environmental, LLC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	1-10	5 contacts →
	Exact match “Sapere Environmental, LLC is a specialty environmental consulting firm providing biological resource management, construction monitoring and compliance, mitigation monitoring…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	SAN Timoteo Energy Associates	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	1-10	5 contacts →
	Exact match “San Timoteo Energy Associates We bring Climate Action Down to Earth - providing practical and actionable ideas and project development for our clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Sunset Ecological Solutions	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	1-10	5 contacts →
	Exact match “Sunset Ecological Solutions, LLC (Sunset) provides biological and ecological consulting services to developers, land owners, construction firms, municipalities, attorneys and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Base Energy, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	11-50	5 contacts →
	Exact match “Berkeley Applied Science & Engineering, Inc.” 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 “climate and environmental 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 62 climate and environmental consulting firms based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 1,034 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Climate and environmental consulting firms based in San Francisco, United States at a glance

As of Sep 21, 2026

39.8%Verified-email coverage

41.9Average contacts per company

1-10Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 62 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 San Francisco, United States whose business descriptions match “climate and environmental 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 1,034 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.

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

How many climate and environmental consulting firms are there based in San Francisco, United States?

RevenueBase identified 62 company matches for climate and environmental consulting firms associated with San Francisco, 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?

Climatebase 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 climate and environmental consulting firms?

New York leads the United States with 114 company records, followed by Houston (102) and Washington (77). San Francisco has 62.

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 1,034 professional contacts with verified work emails tracked across these 62 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.