Company lists · Data refreshed September 2026
Top 25 Progressive law firms based in Philadelphia, United States
RevenueBase identified 43 progressive law firms headquartered in Philadelphia, United States as of September 2026 and tracks 4,984 professional contacts across them, including 2,549 with verified work emails. New York is the largest hub.
This list covers progressive law firms headquartered in Philadelphia, 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.
The 25 largest progressive law firms based in Philadelphia, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,682 contacts → | ||||
Partial evidence “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 916 contacts → | ||||
Indirect evidence “Inspired People.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 277 contacts → | ||||
Indirect evidence “Margolis Edelstein was founded in Philadelphia over 65 years ago.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 242 contacts → | ||||
Indirect evidence “With over 100 attorneys in offices throughout Pennsylvania, New Jersey, New York, Connecticut and Delaware, we provide businesses, organizations, and individuals with legal…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 240 contacts → | ||||
Partial evidence “Founded in 1933, Dilworth Paxson conducts a broad and diverse regional law practice representing a wide variety of clients ranging from Fortune 500 companies to closely-held…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 212 contacts → | ||||
Indirect evidence “Montgomery McCracken’s collaborative approach – in all we do – delivers access to the right people at the right time, efficiencies in our work, and outcomes our clients need and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 162 contacts → | ||||
Partial evidence “Berger Montague is one of the nation’s preeminent law firms focusing on complex civil litigation, class actions, and mass torts.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 133 contacts → | ||||
Indirect evidence “Zarwin Baum DeVito Kaplan Schaer, P.C.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 119 contacts → | ||||
Indirect evidence “Bennett, Bricklin & Saltzburg LLC is committed to providing our clients high quality yet cost effective civil litigation services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 65 contacts → | ||||
Indirect evidence “For over 75 years, Kleinbard attorneys have served as trusted advisors and advocates for clients to help them achieve their goals.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 50 contacts → | ||||
Partial evidence “McEldrew Purtell is a boutique law firm based in Philadelphia specializing in catastrophic injury / wrongful death and civil rights cases nationwide.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 49 contacts → | ||||
Partial evidence “Recognized as one of the preeminent civil litigation law firms in Pennsylvania and New Jersey, the attorneys of Feldman Shepherd have established a track record of winning…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 24 contacts → | ||||
Indirect evidence “ABOUT THE FIRM Astor Weiss Kaplan & Mandel, LLP offers a broad range of expert legal services to its clients by providing high-quality representation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 21 contacts → | ||||
Partial evidence “Langsam Stevens Silver & Hollaender LLP is a boutique law firm that has developed a client-driven and cost-effective philosophy to provide exceptional advice and legal counsel…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 21 contacts → | ||||
Indirect evidence “For decades, esteemed attorney Joseph Vaughan has endeavored to provide his clients with exceptional legal representation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 19 contacts → | ||||
Partial evidence “The Law Firm of Ahmad Zaffarese LLC, a certified Minority Business Enterprise (MBE), is comprised of a highly skilled group of attorneys and staff dedicated to solving your legal…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 18 contacts → | ||||
Partial evidence “For more than 30 years, the law firm of Fineman Krekstein & Harris P.C.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Partial evidence “Steve Harvey Law LLC, based in Philadelphia, Pennsylvania, is a team of lawyers that advises and represents clients in litigation and at trial.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Indirect evidence “Since its founding, the firm Kohn, Swift & Graf, P.C.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 8 contacts → | ||||
Indirect evidence “Levin Sedran & Berman represents plaintiffs in complex cases on both a national and local level.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Indirect evidence “At The Igwe Firm, we are dedicated to providing top notch legal representation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Partial evidence “At Shein Law we pride ourselves in offering an unmatched level of personal service to our clients and their families.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Indirect evidence “Founded in 1983, Bazelon Less & Feldman was born of a belief that most commercial litigation matters could best be handled by a small group of highly talented and experienced…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “First Law Strategy Group is an unique law firm specializing in "Values Work." Whether you value justice, civil rights, property rights, public policy rights, or "simply" fair…” Source: RevenueBase Database · checked Sep 14, 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: progressive 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 progressive law firms.
- Partial evidence
- Its own public description names part of progressive law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name progressive 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 43 progressive law firms based in Philadelphia, United States
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Progressive law firms based in Philadelphia, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Philadelphia, so it is reported there. Company counts and contact totals on this page are exact for Philadelphia, over 43 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 progressive 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 Philadelphia, United States whose own description of what they do matches “progressive 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 progressive 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 progressive law firms, and records with no verified work email. Companies headquartered outside Philadelphia 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, 2,549 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.
Progressive law firms by metro in the United States
- Progressive law firms in New York139
- Progressive law firms in Los Angeles97
- Progressive law firms in Chicago92
- Progressive law firms in Washington64
- Progressive law firms in San Francisco61
- Progressive law firms in Atlanta56
- Progressive law firms in Houston53
- Progressive law firms in Dallas49
- Progressive law firms in San Diego48
- Progressive law firms in Denver43
- Progressive law firms in Philadelphia43
- Progressive law firms in New Orleans37
- Progressive law firms in Miami36
- Progressive law firms in Minneapolis33
- Progressive law firms in Boston32
- Progressive law firms in Seattle30
- Progressive law firms in Austin29
- Progressive law firms in Phoenix28
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 progressive 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 progressive law firms are there based in Philadelphia, United States?
RevenueBase identified 43 progressive law firms headquartered in Philadelphia, 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?
Ballard Spahr LLP, headquartered in Philadelphia, tops this list with the largest team on record.
Which city has the most progressive law firms?
New York leads with 139 headquartered companies, followed by Los Angeles (97) and Chicago (92).
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 2,549 verified decision-maker contacts tracked across these 43 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.
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