Company lists · Data refreshed September 2026

Top 25 Health insurance law firms based in Philadelphia, United States

Name: Health insurance law firms based in Philadelphia, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 47 companies tracked

RevenueBase identified 47 health insurance law firms headquartered in Philadelphia, United States as of September 2026 and tracks 5,050 professional contacts across them, including 2,443 with verified work emails. Across the United States, New York is the largest hub for this category (115 companies); Philadelphia has 47.

This list covers health insurance 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 28, 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 28, 2026 86% judged on-target in blind review

47Companies

5,050Contacts tracked

2,443Verified emails

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The 25 largest health insurance law firms based in Philadelphia, United States

Ranked by team size

Top 25 of 47 health insurance law firms based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to health insurance 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	Ballard Spahr LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
2	Marshall Dennehey	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,147 contacts →
	Indirect evidence “Welcome to our company page!” Source: RevenueBase Database · checked Sep 28, 2026
3	Post & Schell, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	336 contacts →
	Indirect evidence “For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…” Source: RevenueBase Database · checked Sep 28, 2026
4	Margolis Edelstein	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	277 contacts →
	Indirect evidence “Margolis Edelstein was founded in Philadelphia over 65 years ago.” Source: RevenueBase Database · checked Sep 28, 2026
5	Weber Gallagher	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	264 contacts →
	Partial evidence “With more than 160 legal professionals, Weber Gallagher provides counsel to local, national and international businesses, insurance companies and financial institutions in…” Source: RevenueBase Database · checked Sep 28, 2026
6	Kline & Specter, PC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	215 contacts →
	Partial evidence “A Philadelphia-based law firm handling wrongful injury lawsuits, including medical malpractice, product liability, premises liability, civil rights and auto accident litigation.” Source: RevenueBase Database · checked Sep 28, 2026
7	Rawle & Henderson LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	51-200	204 contacts →
	Partial evidence “Rawle & Henderson, LLP, is a Mid-Atlantic regional law firm whose attorneys engage in civil trial litigation.” Source: RevenueBase Database · checked Sep 28, 2026
8	Marks, O'neill, O'brien, Doherty & Kelly, P.C	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	51-200	181 contacts →
	Strong evidence “We are a regional insurance defense law firm with offices in Philadelphia, Pittsburgh, New Jersey, New York, Delaware and Maryland.” Source: RevenueBase Database · checked Sep 28, 2026
9	Mintzer Sarowitz Zeris & Willis Pllc	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	127 contacts →
	Indirect evidence “Mintzer Sarowitz Zeris & Willis PLLC is a partnership of experienced defense counsel committed to providing our clients with the highest level of representation and service.” Source: RevenueBase Database · checked Sep 28, 2026
10	Bennett, Bricklin & Saltzburg LLC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	51-200	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 28, 2026
11	Swartz Campbell	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	51-200	119 contacts →
	Indirect evidence “A Regional Litigation Firm Founded in 1921, Swartz Campbell has provided defense litigation services to insurers and self-insureds throughout the eastern United States.” Source: RevenueBase Database · checked Sep 28, 2026
12	Goldberg, Miller & Rubin	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	51-200	90 contacts →
	Indirect evidence “Goldberg, Miller & Rubin has built a solid foundation in civil litigation with several hundred defense verdicts and hundreds more defense arbitration awards.” Source: RevenueBase Database · checked Sep 28, 2026
13	German Gallagher & Murtagh, P.C	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	51 contacts →
	Partial evidence “GGM is a full service law firm headquartered in Philadelphia.” Source: RevenueBase Database · checked Sep 28, 2026
14	Wilbraham, Lawler & Buba	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	51-200	50 contacts →
	Indirect evidence “The attorneys at Wilbraham, Lawler & Buba, P.C.” Source: RevenueBase Database · checked Sep 28, 2026
15	Haggerty, Goldberg, Schleifer & Kupersmith, PC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence “For more than 30 years, the attorneys of Haggerty, Goldberg, Schleifer & Kupersmith have stood for the foundational principle of serving the people and the communities in which we…” Source: RevenueBase Database · checked Sep 28, 2026
16	Green & Schafle	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1-10	15 contacts →
	Partial evidence “Founded in 2009, Green & Schafle is a boutique law firm based in Philadelphia that offers a more personalized and open approach to legal matters, including vaccine injury cases…” Source: RevenueBase Database · checked Sep 28, 2026
17	Wheeler, Diulio & Barnabei, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “We are a small firm with big results.” Source: RevenueBase Database · checked Sep 28, 2026
18	Freiwald Law, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “Look out, Goliath!” Source: RevenueBase Database · checked Sep 28, 2026
19	Kolsby Gordon	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “For more than five decades, Kolsby Gordon has provided unsurpassed representation to clients, and our highly qualified attorneys continue to build upon this legacy.” Source: RevenueBase Database · checked Sep 28, 2026
20	Epro Associates INC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Strong evidence “Founded in 2009, we have over 10 years of experience helping clients navigate the complex world of health insurance after the ACA (Affordable Care Act) went into effect.” Source: RevenueBase Database · checked Sep 28, 2026
21	Dashevsky, Horwitz, Kuhn, Novello & Shorr, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Our firm was founded in 1952 upon strong ethics, old-fashioned values and the desire to work in an intimate environment where we could develop long-term relationships.” Source: RevenueBase Database · checked Sep 28, 2026
22	Seltzer & Associates, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “The experienced team at Seltzer & Associates is nationally recognized for excellence in achieving quick, favorable results on behalf of professionals and executives filing…” Source: RevenueBase Database · checked Sep 28, 2026
23	Boonswang LAW Firm, LLC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Strong evidence “Based in Philadelphia and serving clients across the country, Boonswang Law focuses on life insurance and catastrophic personal injury claims.” Source: RevenueBase Database · checked Sep 28, 2026
24	GAY Chacker & Ginsburg	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “Gay Chacker & Ginsburg was founded in Philadelphia in 1965.” Source: RevenueBase Database · checked Sep 28, 2026
25	Marrone LAW Firm, LLC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “Decades of experience and strong relationships are at the core of the Marrone Law Firm’s practice.” Source: RevenueBase Database · checked Sep 28, 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: health insurance 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 health insurance law firms.
Partial evidence: Its own public description names part of health insurance law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name health insurance 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 47 health insurance law firms based in Philadelphia, United States

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Health insurance law firms based in Philadelphia, United States at a glance

As of Sep 28, 2026

48.4%Verified-email coverage

107.4Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

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 Philadelphia, so it is reported there. Company counts and contact totals on this page are exact for Philadelphia, over 47 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 health insurance 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 “health insurance 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 health insurance 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 health insurance 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, 2,443 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 28, 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.

Health insurance 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 health insurance 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 health insurance law firms are there based in Philadelphia, United States?

RevenueBase identified 47 health insurance 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 in the United States has the most health insurance law firms?

New York leads the United States with 115 headquartered companies, followed by Chicago (104) and Houston (104). Philadelphia has 47.

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 2,443 verified decision-maker contacts tracked across these 47 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 28, 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.