Company lists · Data refreshed September 2026
Top 25 Startup law firms based in San Francisco, United States
RevenueBase identified 71 startup law firms headquartered in San Francisco, United States as of September 2026 and tracks 446 professional contacts across them, including 226 with verified work emails. New York is the largest hub.
This list covers startup 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 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.
The 25 largest startup law firms based in San Francisco, United States
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Indirect evidence | 66 contacts → | |||
“Bartko LLP is a mid-size firm dedicated to strategic representation of clients in California, nationally and abroad.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Partial evidence | 50 contacts → | |||
“Silicon Legal Strategy provides targeted, bottom-line-oriented advice to technology startups, innovative entrepreneurs and seasoned investors.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Partial evidence | 30 contacts → | |||
“We act as outside general counsel to venture-backed tech startups and the investors that fund them.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Partial evidence | 25 contacts → | |||
“We are a boutique law firm specializing in intellectual property, technology law and related litigation.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Strong evidence | 22 contacts → | |||
“Inventus is an innovative global law firm which provides superior legal services to entrepreneurs, startups, and mid-sized companies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Partial evidence | 11 contacts → | |||
“Cognition IP is a Y Combinator backed (YC W18) intellectual property law firm revolutionizing legal services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Strong evidence | 10 contacts → | |||
“Mission Law is a tech-enabled startup legal practice on a mission to improve how startups and professionals do legal.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Partial evidence | 9 contacts → | |||
“Niesar & Vestal LLP is a general business law firm providing exceptional legal services and dynamic business solutions in a cost-effective manner.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Partial evidence | 9 contacts → | |||
“Primum Law Group is boutique business law firm located in San Francisco, a city that has become home to many international companies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Partial evidence | 9 contacts → | |||
“Hakimi Law is a unique Business and Intellectual Property Firm focused on serving the long-term interests of our clients by providing comprehensive and in-depth legal services…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Strong evidence | 8 contacts → | |||
“We help startups, entrepreneurs, and growing businesses navigate the legal side of building a company - without the friction, complexity, or surprise bills of a traditional law…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Indirect evidence | 7 contacts → | |||
“Established in 2008, with offices in San Francisco, San Diego and Shanghai, Pillar Legal helps technology leaders protect their companies so they can focus on innovation and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Partial evidence | 6 contacts → | |||
“Holland Law is a boutique law firm committed to providing our clients with expert and efficient solutions for their legal needs in intellectual property, business disputes, and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Indirect evidence | 4 contacts → | |||
“Futterman Dupree Dodd Croley Maier LLP lawyers provide high quality legal work and exceptional service.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Partial evidence | 4 contacts → | |||
“Inspire Business Law Group, LLP provides legal services tailored to guide businesses through every stage-from formation to growth and eventual sale.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Partial evidence | 3 contacts → | |||
“Orman Williams is a boutique law firm dedicated to providing the highest levels of legal expertise and service to emerging technology companies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Partial evidence | 2 contacts → | |||
“New World Law, LLP is a boutique business and immigration law firm that provides legal counsel to creative and emerging companies in the San Francisco Bay Area and beyond.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Partial evidence | 2 contacts → | |||
“Gutierrez Marca LLP offers business and employment law counseling and transactional representation to clients in a broad range of industries, including venture capital, consumer…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Indirect evidence | 2 contacts → | |||
“Accelerate Legal, Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Partial evidence | 2 contacts → | |||
“Specializing in fundraising, company formation, drafting contracts, negotiating, and provides advice on technology-related and intellectual property legal issues faced by startups…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Strong evidence | 2 contacts → | |||
“Bay Area boutique patent law firm catering to the needs of startups.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Strong evidence | 2 contacts → | |||
“Kyle Law Corporation was founded in 2009 to meet the business and corporate legal challenges faced by startups, emerging growth companies, entrepreneurs and executives.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Partial evidence | 2 contacts → | |||
“Ball Law Corporation is a boutique business and litigation law firm founded by two Stanford undergrad classmates, Jonathan Ball (Harvard Law School) and Thomas O'Brien (Columbia…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Indirect evidence | 2 contacts → | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Partial evidence | 2 contacts → | |||
“TECH LAW SF GROUP INC.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
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: startup 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 startup law firms.
- Partial evidence
- Its own public description names part of startup law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name startup 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 71 startup law firms based in San Francisco, United States
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Startup law firms based in San Francisco, United States at a glance
As of Sep 6, 2026Companies by employee count
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 71 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 startup 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 “startup 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 startup 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 startup 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, 226 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.
Startup law firms by metro in the United States
- Startup law firms in New York143
- Startup law firms in San Francisco71
- Startup law firms in Los Angeles64
- Startup law firms in Chicago59
- Startup law firms in Austin44
- Startup law firms in Houston42
- Startup law firms in Atlanta41
- Startup law firms in San Diego41
- Startup law firms in Seattle40
- Startup law firms in Washington40
- Startup law firms in Dallas36
- Startup law firms in Denver33
- Startup law firms in Boston28
- Startup law firms in Miami27
- Startup law firms in Irvine25
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 startup 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 startup law firms are there based in San Francisco, United States?
RevenueBase identified 71 startup 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?
Bartko LLP, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most startup law firms?
New York leads with 143 headquartered companies, followed by San Francisco (71) and Los Angeles (64).
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 226 verified decision-maker contacts tracked across these 71 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.