Company lists · Data refreshed September 2026

Top 11 Sustainable IT consulting firms based in San Francisco, United States

RevenueBase identified 37 sustainable IT consulting firms headquartered in San Francisco, United States as of September 2026 and tracks 230 professional contacts across them, including 109 with verified work emails. New York is the largest hub.

This list covers sustainable IT consulting firms headquartered in San Francisco, 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 6, 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 6, 2026 86% judged on-target in blind review
37Companies
230Contacts tracked
109Verified emails
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The 11 largest sustainable IT consulting firms based in San Francisco, United States

Ranked by team size
Top 11 of 37 sustainable IT consulting firms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable IT consulting 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 evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-200141 contacts →

“Stok leads organizations to decarbonize now.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-105 contacts →

“Healthy Building Science combines principles of green building and environmental science to offer a full range of services for both commercial and residential clients.”

Source: company website · checked Sep 6, 2026
3Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-105 contacts →

“KSH is a healthcare management consulting firm focusing on environmental sustainability.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-105 contacts →

“San Timoteo Energy Associates We bring Climate Action Down to Earth - providing practical and actionable ideas and project development for our clients.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-505 contacts →

“Berkeley Applied Science & Engineering, Inc.”

Source: company website · checked Sep 6, 2026
6Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-103 contacts →

“Navigating the complexities of today’s sustainability landscape can be overwhelming.”

Source: company website · checked Sep 6, 2026
7Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202611-502 contacts →

“Radar 2030 is a mission-driven consulting team of climate-conscious experts and collaborators using cutting-edge technology to pioneer and implement global sustainability…”

Source: company website · checked Sep 6, 2026
8Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-102 contacts →

“We propel conscious companies through innovative and memorable marketing, brand & experience design.”

Source: company website · checked Sep 6, 2026
9Partial evidenceSan Francisco, United StatesHQ checked Sep 6, 202611-501 contacts →

“Green Lens supports businesses to accelerate sustainability initiatives and action plans.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-101 contacts →

“The future playbook is:"Move smart and fix things." GoodOps is a strategic advisory firm architecting the resilient global operations that will define the next era.”

Source: company website · checked Sep 6, 2026
11Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261-101 contacts →

“Developing sustainable business strategies and tools focused on company growth, adaptability, and revenue generation.”

Source: company website · checked Sep 6, 2026

Showing 11 of 37 sustainable IT consulting firms based in San Francisco, United States

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Sustainable IT consulting firms based in San Francisco, United States at a glance

As of Sep 6, 2026
47.4%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
281.1%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
6
51-200
2

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 37 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 sustainable IT consulting 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 San Francisco, United States whose own description of what they do matches “sustainable IT consulting 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 sustainable IT consulting 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 sustainable IT consulting firms, and records with no verified work email. Companies headquartered outside San Francisco 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, 109 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 6, 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 sustainable IT consulting 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 sustainable IT consulting firms are there based in San Francisco, United States?

RevenueBase identified 37 sustainable IT consulting firms headquartered in San Francisco, 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?

STOK, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most sustainable IT consulting firms?

New York leads with 104 headquartered companies, followed by Chicago (54) and Washington (50).

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 109 verified decision-maker contacts tracked across these 37 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 6, 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 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.