Company lists · Data refreshed September 2026

Top 25 Software patent law firms based in Los Angeles, United States

Name: Software patent law firms based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 176 companies tracked

RevenueBase identified 176 software patent law firms headquartered in Los Angeles, United States as of September 2026 and tracks 2,909 professional contacts across them, including 1,382 with verified work emails. Across the United States, New York is the largest hub for this category (357 companies); Los Angeles has 176.

This list covers software patent law firms headquartered in Los Angeles, 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 14, 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 14, 2026 86% judged on-target in blind review

176Companies

2,909Contacts tracked

1,382Verified emails

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The 25 largest software patent law firms based in Los Angeles, United States

Ranked by team size

Top 25 of 176 software patent law firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to software patent 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	Irell & Manella LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	201-500	258 contacts →
	Partial evidence “Irell & Manella LLP is a law firm focused on complex commercial and IP litigation.” Source: RevenueBase Database · checked Sep 14, 2026
2	Mitchell Silberberg & Knupp LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	201-500	255 contacts →
	Indirect evidence “Since 1908, MSK has displayed an ability to understand the complex, demystify the mysterious, and define the unknown.” Source: RevenueBase Database · checked Sep 14, 2026
3	Musick, Peeler & Garrett	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	201-500	204 contacts →
	Partial evidence “Musick Peeler, a premier law firm with over 80 attorneys across five offices in major commercial centers of California, exemplifies excellence in legal service.” Source: RevenueBase Database · checked Sep 14, 2026
4	Glaser Weil	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	51-200	172 contacts →
	Partial evidence “Glaser Weil is a premier law firm headquartered in Los Angeles with outstanding experience and market-leading successes in litigation, corporate, intellectual property and real…” Source: RevenueBase Database · checked Sep 14, 2026
5	Sheppard	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	1,001-5,000	165 contacts →
	Indirect evidence “Businesses turn to Sheppard to deliver sophisticated counsel to help clients move ahead.” Source: RevenueBase Database · checked Sep 14, 2026
6	Haight Brown & Bonesteel	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	51-200	157 contacts →
	Indirect evidence “From civil litigation to business transactions, Haight Brown & Bonesteel LLP provides practical and effective resolution advice to the most perplexing disputes, ranging from early…” Source: RevenueBase Database · checked Sep 14, 2026
7	Raines Feldman Littrell LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	51-200	148 contacts →
	Partial evidence “RAINES is a full-service business law firm, built for what’s next.” Source: RevenueBase Database · checked Sep 14, 2026
8	Russ, August & Kabat	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	51-200	75 contacts →
	Indirect evidence “Russ August & Kabat was founded in 1990 by Larry Russ, Rick August and Jules Kabat.” Source: RevenueBase Database · checked Sep 14, 2026
9	Ellis George LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	51-200	71 contacts →
	Indirect evidence “Ellis George LLP is a leader in business litigation that has been providing creative solutions, efficient teamwork and fearless advocacy to its clients for over 40 years.” Source: RevenueBase Database · checked Sep 14, 2026
10	Hill, Farrer & Burrill LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	51-200	67 contacts →
	Indirect evidence “Hill Farrer attorneys have successfully handled thousands of transactions and won thousands of cases.” Source: RevenueBase Database · checked Sep 14, 2026
11	Sklar Kirsh LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	51-200	57 contacts →
	Partial evidence “Sklar Kirsh LLP is a corporate, real estate, entertainment, and litigation law firm founded by attorneys from nationally and internationally recognized firms who provide top tier…” Source: RevenueBase Database · checked Sep 14, 2026
12	King, Holmes, Paterno & Soriano, LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	56 contacts →
	Partial evidence “The attorneys at King, Holmes, Paterno & Soriano, LLP provide innovative thinking, cutting edge deal making and powerful litigation and business strategies to our clients.” Source: RevenueBase Database · checked Sep 14, 2026
13	Chapman Glucksman	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	30 contacts →
	Partial evidence “Founded in 1985, Chapman Glucksman is a multi-faceted law firm with offices in Los Angeles, Orange County, Sacramento and the Bay Area.” Source: RevenueBase Database · checked Sep 14, 2026
14	LTL Attorneys LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	51-200	29 contacts →
	Indirect evidence “Trusted by general counsel of leading global companies, our highly skilled lawyers focus solely on trials and litigation.” Source: RevenueBase Database · checked Sep 14, 2026
15	Koletsky Mancini Feldman LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	29 contacts →
	Indirect evidence “Koletsky, Mancini, Feldman & Morrow was founded in 1987 with one goal in mind, to provide its clients with the highest quality legal services in the most cost effective manner…” Source: RevenueBase Database · checked Sep 14, 2026
16	DTO LAW	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	28 contacts →
	Partial evidence “Founded by former Big Law attorneys, DTO Law is an elite boutique with offices in Los Angeles, Silicon Valley, and New York, though our attorneys handle cases and matters across…” Source: RevenueBase Database · checked Sep 14, 2026
17	Gipson Hoffman & Pancione	Partial evidence	Los Angeles, United StatesHQ checked Sep 14, 2026	11-50	28 contacts →
	Partial evidence “Gipson Hoffman & Pancione (GHP) is a boutique law firm committed to serving its clients with deep expertise, strategic insight, and meticulous attention to detail.” Source: RevenueBase Database · checked Sep 14, 2026
18	Parker Shaffie LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	25 contacts →
	Indirect evidence “Parker Shaffie LLP has represented international, national and local clients for almost three decades.” Source: RevenueBase Database · checked Sep 14, 2026
19	Waymaker LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	24 contacts →
	Indirect evidence “Waymaker LLP is known for winning trials and appeals across the county for clients that include Fortune 500 companies, startups and high net-worth individuals.” Source: RevenueBase Database · checked Sep 14, 2026
20	Kubota & Basol LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	24 contacts →
	Partial evidence “We provide highest-quality patent legal services with the agility and flexibility to sustainably meet our clients' patent needs into the future.” Source: RevenueBase Database · checked Sep 14, 2026
21	Foundation LAW Group LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	23 contacts →
	Partial evidence “Foundation Law Group LLP is a boutique law firm specializing in mergers and acquisitions, startups, securities, digital media, entertainment, intellectual property, real estate…” Source: RevenueBase Database · checked Sep 14, 2026
22	Leech Tishman Nelson Hardiman	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	22 contacts →
	Partial evidence “Leech Tishman Nelson Hardiman is a national, full-service law firm dedicated to assisting businesses, institutions, and individuals.” Source: RevenueBase Database · checked Sep 14, 2026
23	Willenken LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “Willenken is a premier boutique litigation firm renowned for our attorneys’ formidable trial capabilities and innovative strategic acumen.” Source: RevenueBase Database · checked Sep 14, 2026
24	Valle Makoff LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “Valle Makoff LLP provides business litigation and related transactional advice to corporate, fiduciary and individual clients in federal and state courts, arbitrations and in…” Source: RevenueBase Database · checked Sep 14, 2026
25	Park Lawless & Tremonti LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 14, 2026	11-50	17 contacts →
	Partial evidence “With more than a century of combined experience at some of the preeminent Am Law 50 international law firms, our lawyers bring extensive experience in complex litigation and…” Source: RevenueBase Database · checked Sep 14, 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: software patent 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 software patent law firms.
Partial evidence: Its own public description names part of software patent law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software patent 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 176 software patent law firms based in Los Angeles, United States

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Software patent law firms based in Los Angeles, United States at a glance

As of Sep 14, 2026

47.5%Verified-email coverage

16.5Average contacts per company

1-10Median size (employees)

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

115

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 176 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 software patent 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 Los Angeles, United States whose own description of what they do matches “software patent 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 software patent 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 software patent law firms, and records with no verified work email. Companies headquartered outside Los Angeles 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, 1,382 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 14, 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.

Software patent 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 software patent 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 software patent law firms are there based in Los Angeles, United States?

RevenueBase identified 176 software patent law firms headquartered in Los Angeles, 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?

Irell & Manella LLP, headquartered in Los Angeles, tops this list with the largest team on record.

Which city in the United States has the most software patent law firms?

New York leads the United States with 357 headquartered companies, followed by Chicago (187) and Los Angeles (176).

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 1,382 verified decision-maker contacts tracked across these 176 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 14, 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.