Company lists · Data refreshed September 2026
Top 25 Big 4 law firms based in San Diego, United States
RevenueBase identified 94 big 4 law firms headquartered in San Diego, United States as of September 2026 and tracks 1,440 professional contacts across them, including 828 with verified work emails. Across the United States, New York is the largest hub for this category (536 companies); San Diego has 94.
This list covers big 4 law firms headquartered in San Diego, 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 23, 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 big 4 law firms based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 413 contacts → | ||||
Indirect evidence “Procopio is committed to helping clients reach their full potential while striving always to provide the highest level of client service.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 2 | 185 contacts → | ||||
Partial evidence “Klinedinst has become the go-to law firm across the Western U.S, providing exceptional legal services in litigation, trial, and transactional law.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 3 | 112 contacts → | ||||
Partial evidence “Wilson Turner Kosmo is the largest certified women-owned law firm in San Diego, and one of the largest in California.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 4 | 100 contacts → | ||||
Indirect evidence “Since our founding in 1948, Seltzer Caplan McMahon Vitek has dedicated itself to serving as advocates for our clients and our community.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 5 | 64 contacts → | ||||
Indirect evidence “Solomon Ward’s legal team is dedicated to achieving excellence in the eyes of our clients, and we have consistently succeeded in this endeavor since 1977.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 6 | 43 contacts → | ||||
Partial evidence “Founded in 1978, Duckor Metzger & Wynne, A Professional Law Corporation (DMW) is an AV-rated, full-service, San Diego-based law firm representing clients across a broad range of…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 7 | 34 contacts → | ||||
Partial evidence “Dunn DeSantis Walt & Kendrick, LLP is a Southern California civil law firm providing legal counsel to businesses and professionals, locally and nationally.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 8 | 31 contacts → | ||||
Partial evidence “WILSON GETTY LLP is a law firm based in Southern California specializing in civil litigation, business and transactional law.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 9 | 30 contacts → | ||||
Indirect evidence “RPS strives to provide its clients with best-in-class legal solutions at competitive boutique firm rates.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 10 | 27 contacts → | ||||
Indirect evidence “Hughes & Pizzuto, APC traces its roots to Glenn Wright Jacobs & Schell, founded in 1952 by Eugene Glenn and Leroy A.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 11 | 27 contacts → | ||||
Partial evidence “As one of San Diego’s longest standing business and trial law firms, Sullivan Hill has grown and evolved over the years as our local economy and business landscape has changed.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 12 | 19 contacts → | ||||
Indirect evidence “At Witham Mahoney & Abbott, we are helping clients build strong businesses, make sound investments, and ensure their professional and personal interests are protected along the…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 13 | 18 contacts → | ||||
Indirect evidence “Strong cross-border relationships.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Indirect evidence “Brockman Quayle Bennett (BQB LLP) provides the absolute highest level of legal representation to its clients throughout the state of California.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 15 | 11 contacts → | ||||
Indirect evidence “Artiano Shinoff APC takes pride in the high quality of our client service.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 contacts → | ||||
Partial evidence “Teeple Hall, LLP provides extensive experiences to the practice of law along with a level of personalized service that our clients required.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 contacts → | ||||
Indirect evidence “Global Legal, Wealth, Tax, and Business Counsel” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Partial evidence “The Naumann Law Firm is a team of highly qualified professionals, including lawyers, legal assistants, paralegals and support staff.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Indirect evidence “Nicholas & Tomasevic, LLP represents businesses and individuals in litigation across a spectrum of specialized practice areas, including employment and consumer class actions…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Partial evidence “Miller, Monson, Peshel, Polacek & Hoshaw was founded in 1959 by Ralph Gano Miller with the intent of bringing together the worlds of business and law.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Partial evidence “The Coopersmith Law Firm, LLP represents individuals and businesses at all stages of litigation, and advises clients on methods to avoid and minimize the risk of litigation.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Indirect evidence “Crafting diverse solutions for businesses and individuals.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Partial evidence “Robberson Schroedter LLP is a women-founded boutique law firm, focused on business litigation, cross-border litigation, business bankruptcy and restructuring, and mediation.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Partial evidence “Noon & Associates is a civil litigation law firm dedicated to providing the highest quality, professional and ethical legal representation in a cost-effective manner.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Partial evidence “The Casas Law Firm, PC is committed to delivering innovative and successful solutions to your legal issues.” Source: RevenueBase Database · checked Sep 23, 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: big 4 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 big 4 law firms.
- Partial evidence
- Its own public description names part of big 4 law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name big 4 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 94 big 4 law firms based in San Diego, United States
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Big 4 law firms based in San Diego, United States at a glance
As of Sep 23, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 94 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 big 4 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 Diego, United States whose own description of what they do matches “big 4 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 big 4 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 big 4 law firms, and records with no verified work email. Companies headquartered outside San Diego 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, 828 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 23, 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.
Big 4 law firms by metro in the United States
- Big 4 law firms in New York536
- Big 4 law firms in Chicago267
- Big 4 law firms in Los Angeles235
- Big 4 law firms in Dallas184
- Big 4 law firms in Houston163
- Big 4 law firms in Miami157
- Big 4 law firms in Atlanta142
- Big 4 law firms in Washington135
- Big 4 law firms in Boston117
- Big 4 law firms in San Francisco105
- Big 4 law firms in Austin89
- Big 4 law firms in Denver82
- Big 4 law firms in Irvine79
- Big 4 law firms in Philadelphia79
- Big 4 law firms in Minneapolis69
- Big 4 law firms in Portland66
- Big 4 law firms in Seattle61
- Big 4 law firms in New Orleans60
- Big 4 law firms in Coral Gables59
- Big 4 law firms in Birmingham55
- Big 4 law firms in Cleveland54
- Big 4 law firms in Phoenix54
- Big 4 law firms in Fort Lauderdale50
- Big 4 law firms in Tampa48
- Big 4 law firms in Columbus45
- Big 4 law firms in Pittsburgh42
- Big 4 law firms in Salt Lake City40
- Big 4 law firms in Charlotte39
- Big 4 law firms in Milwaukee39
- Big 4 law firms in Sacramento39
- Big 4 law firms in Baltimore38
- Big 4 law firms in Nashville37
- Big 4 law firms in Raleigh36
- Big 4 law firms in Newport Beach35
- Big 4 law firms in Indianapolis34
- Big 4 law firms in Orlando34
- Big 4 law firms in Columbia33
- Big 4 law firms in San Antonio33
- Big 4 law firms in Kansas City32
- Big 4 law firms in Tulsa32
- Big 4 law firms in Oklahoma City31
- Big 4 law firms in Pasadena31
- Big 4 law firms in Jacksonville30
- Big 4 law firms in San Jose30
- Big 4 law firms in White Plains30
- Big 4 law firms in Cincinnati29
- Big 4 law firms in Newark28
- Big 4 law firms in Wilmington28
- Big 4 law firms in Beverly Hills27
- Big 4 law firms in Boca Raton26
- Big 4 law firms in Buffalo26
- Big 4 law firms in Las Vegas26
- Big 4 law firms in Fort Worth25
- Big 4 law firms in Scottsdale25
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 big 4 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 big 4 law firms are there based in San Diego, United States?
RevenueBase identified 94 big 4 law firms headquartered in San Diego, 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?
Procopio, Cory, Hargreaves & Savitch LLP, headquartered in San Diego, tops this list with the largest team on record.
Which city in the United States has the most big 4 law firms?
New York leads the United States with 536 headquartered companies, followed by Chicago (267) and Los Angeles (235). San Diego has 94.
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 828 verified decision-maker contacts tracked across these 94 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 23, 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.