Company lists · Data refreshed September 2026

Top 25 Infrastructure law firms based in San Francisco, United States

Name: Infrastructure law 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 51 companies tracked

RevenueBase identified 51 infrastructure law firms headquartered in San Francisco, United States as of September 2026 and tracks 11,629 professional contacts across them, including 2,495 with verified work emails. Houston is the largest hub.

This list covers infrastructure law 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 21, 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 21, 2026 86% judged on-target in blind review

51Companies

11,629Contacts tracked

2,495Verified emails

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The 25 largest infrastructure law firms based in San Francisco, United States

Ranked by team size

Top 25 of 51 infrastructure law firms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure law 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	URS Corporation, An Aecom Company	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	10001+	7,706 contacts →
	Indirect evidence “URS Corporation operations are now affiliated with AECOM.” Source: RevenueBase Database · checked Sep 21, 2026
2	TYLIN	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,067 contacts →
	Partial evidence “As a global engineering firm, we design infrastructure solutions that connect and elevate communities.” Source: RevenueBase Database · checked Sep 21, 2026
3	Farella Braun Martel LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	250 contacts →
	Partial evidence “Farella Braun + Martel LLP is a leading Northern California law firm representing corporate and private clients in sophisticated business and real estate transactions and complex…” Source: RevenueBase Database · checked Sep 21, 2026
4	Shute, Mihaly & Weinberger LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	77 contacts →
	Partial evidence “Shute, Mihaly & Weinberger LLP is a law firm specializing in government, land use, natural resource and environmental law.” Source: RevenueBase Database · checked Sep 21, 2026
5	SSL LAW Firm LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	62 contacts →
	Partial evidence “From inception, SSL has embraced an innovative law firm model that has enabled us to provide extraordinary service to our clients at lower hourly rates.” Source: RevenueBase Database · checked Sep 21, 2026
6	Clean Energy Counsel, LLP	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	45 contacts →
	Indirect evidence “At Clean Energy Counsel, we devote our legal power to advancing clean energy and a sustainable future.” Source: RevenueBase Database · checked Sep 21, 2026
7	Leighfisher	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	32 contacts →
	Indirect evidence “LeighFisher is a global management consulting firm that combines deep market-specific knowledge with specialized expertise in business advisory, facility and operational planning…” Source: RevenueBase Database · checked Sep 21, 2026
8	Montez Group INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	29 contacts →
	Indirect evidence “Montez Group Incorporated (MGI) is a multidisciplinary professional services firm providing expert Construction Management, Project Controls, and Quality Management services…” Source: RevenueBase Database · checked Sep 21, 2026
9	FMG Company	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	24 contacts →
	Indirect evidence “FMG + COMPANY is an award-winning firm focusing on delivering high-value sustainable architecture design, program & project management services to transit, aviation and civic…” Source: RevenueBase Database · checked Sep 21, 2026
10	COX Wootton Lerner Griffin & Hansen LLP	Indirect evidence	San Francisco, United StatesHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
11	Friedman & Springwater LLP	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “Friedman & Springwater LLP has been dedicated to providing clients with exceptional legal representation since its founding in 2003.” Source: RevenueBase Database · checked Sep 21, 2026
12	Olmm Consulting Engineers	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “OLMM is a reputable and award-winning structural engineering firm with offices in San Francisco and Oakland.” Source: RevenueBase Database · checked Sep 21, 2026
13	SSC INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “SSC Inc, Engineering Excellence, Delivered.” Source: RevenueBase Database · checked Sep 21, 2026
14	Dillingham & Murphy, LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Partial evidence “Dillingham & Murphy, LLP is an AV-rated medium size law firm in San Francisco, California.” Source: RevenueBase Database · checked Sep 21, 2026
15	Schinner & Shain, LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	10 contacts →
	Partial evidence “Schinner & Shain is a full-service law firm comprised of dynamic transactional and litigation attorneys, serving clients from its offices in San Francisco and Malibu.” Source: RevenueBase Database · checked Sep 21, 2026
16	CPM Associates, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	10 contacts →
	Indirect evidence “In 2022, CPM became Consor, integrating our decades of experience delivering program management, project management, cost controls, and construction management services for…” Source: RevenueBase Database · checked Sep 21, 2026
17	Cleantech LAW Partners	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “Cleantech Law Partners is a full-service law firm dedicated exclusively to the renewable energy industry.” Source: RevenueBase Database · checked Sep 21, 2026
18	Miura & Partners US	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	8 contacts →
	Partial evidence “Miura & Partners US provides legal expertise and strategic counseling to multi-national businesses in the areas of corporate law, licensing and commercial transactions, business…” Source: RevenueBase Database · checked Sep 21, 2026
19	Haasnajarian	Partial evidence	San Francisco, United StatesHQ checked Sep 21, 2026	11-50	7 contacts →
	Partial evidence “San Francisco law firm in its 37th year practicing in the areas of real estate, business, construction, government contracts, liquor licensing and estate planning.” Source: RevenueBase Database · checked Sep 21, 2026
20	Severson & Werson	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	201-500	7 contacts →
	Indirect evidence “At Severson, we focus relentlessly on our Clients’ definition of success.” Source: RevenueBase Database · checked Sep 21, 2026
21	Kaufhold Gaskin LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “Kaufhold Gaskin LLP is a boutique law firm focused exclusively on delivering great results for our clients.” Source: RevenueBase Database · checked Sep 21, 2026
22	Project Finance Advisory Limited Pfal	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	11-50	5 contacts →
	Partial evidence “Project Finance Advisory Ltd.(“PFAL”) is an independent financial and commercial advisory firm with experience structuring and closing complex, large-scale infrastructure projects…” Source: RevenueBase Database · checked Sep 21, 2026
23	Gross Klein PC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Gross Klein PC represents individuals, businesses, non-profit organizations, governmental entities, and Indian tribes in litigation and regulatory proceedings throughout the…” Source: RevenueBase Database · checked Sep 21, 2026
24	Bell Kearns LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “Bell Kearns is a boutique law firm specializing in the application of land use, natural resource, and environmental impact disclosure laws to large-scale development projects in…” Source: RevenueBase Database · checked Sep 21, 2026
25	DAN TAN LAW	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “Dan Tan Law is a boutique litigation and international arbitration law firm based in San Francisco, New York, and Singapore.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: infrastructure law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names infrastructure law firms.
Partial evidence: Its own public description names part of infrastructure law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 51 infrastructure law firms based in San Francisco, United States

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Infrastructure law firms based in San Francisco, United States at a glance

As of Sep 21, 2026

21.5%Verified-email coverage

228.0Average contacts per company

11-50Median size (employees)

325.5%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

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 51 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 infrastructure law 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 “infrastructure law 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 infrastructure law 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 infrastructure law 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, 2,495 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 21, 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.

Infrastructure law firms by metro in the United States

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 infrastructure law 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 infrastructure law firms are there based in San Francisco, United States?

RevenueBase identified 51 infrastructure law 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?

URS Corporation, An Aecom Company, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most infrastructure law firms?

Houston leads with 166 headquartered companies, followed by New York (162) and Washington (134).

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 2,495 verified decision-maker contacts tracked across these 51 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 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 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.