Company lists · Data refreshed September 2026

Top 20 Law firm administrative services based in Philadelphia, United States

RevenueBase identified 46 law firm administrative services headquartered in Philadelphia, United States as of September 2026 and tracks 1,986 professional contacts across them, including 887 with verified work emails. New York is the largest hub.

This list covers law firm administrative services 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
46Companies
1,986Contacts tracked
887Verified emails
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The 20 largest law firm administrative services based in Philadelphia, United States

Ranked by team size
Top 20 of 46 law firm administrative services based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names law firm administrative services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Saul Ewing LLPIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 2026501-1,000918

“Inspired People.”

Source: company website · checked Sep 4, 2026
2
Weber GallagherIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 2026201-500263

“With more than 140 legal professionals, Weber Gallagher provides counsel to local, national and international businesses, insurance companies and financial institutions in…”

Source: company website · checked Sep 4, 2026
3
Zarwin BaumIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 202651-200134

“Zarwin Baum DeVito Kaplan Schaer, P.C.”

Source: company website · checked Sep 4, 2026
4Philadelphia, PA, United StatesHQ checked Sep 4, 202651-200103
Source: company website · checked Sep 4, 2026
5
Ahmad Zaffarese LLCPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 202611-5019

“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: company website · checked Sep 4, 2026
6Philadelphia, PA, United StatesHQ checked Sep 4, 202611-5018

“For more than 30 years, the law firm of Fineman Krekstein & Harris P.C.”

Source: company website · checked Sep 4, 2026
7
Leonard Sciolla, LLPIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 202611-5017

“At Leonard Sciolla, LLP, we are proud of our proven ability to handle the most sophisticated business transactions and complex litigation for multi-national and Fortune 500…”

Source: company website · checked Sep 4, 2026
8
Nochumson P.CIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-109

“At Nochumson P.C, we are not just legal counsel, we are real people serving our communities.”

Source: company website · checked Sep 4, 2026
9
Giampolo LAW GroupIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-105

“GLG champions for its clients’ legal needs and cultivates personal relationships with each throughout the process.”

Source: company website · checked Sep 4, 2026
10
Weir Greenblatt Pierce LLPIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 202611-504

“Weir Greenblatt Pierce LLP is committed to achieving our clients’ objectives and finding practical solutions to complex legal problems.”

Source: company website · checked Sep 4, 2026
11
Gekoski & Bogdanoff, PCPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-104

“Gekoski & Bogdanoff is an accomplished law firm that has been serving its clients for over sixty years.”

Source: company website · checked Sep 4, 2026
12
Danziger Shapiro, PCPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-103

“Since our founding in the Philadelphia-based law firm of Danziger Shapiro, PC has offered clients a unique combination of skills and assets: the legal breadth usually associated…”

Source: company website · checked Sep 4, 2026
13
Mensing LAW LLCPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-103

“Philadelphia law firm helping individuals and small/mid-sized businesses resolve their legal issues.”

Source: company website · checked Sep 4, 2026
14
Carmody Siegel LLCPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-102

“Heather Carmody and Ellie Siegel formed Carmody Siegel LLC to assist businesses and individuals with matters of general corporate law, mergers and acquisitions and the private…”

Source: company website · checked Sep 4, 2026
15
Grabar LAW OfficeIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-102

“The Firm serves as counsel to its clients in complex commercial litigation in both state and federal courts throughout the nation, with a concentration and emphasis in individual…”

Source: company website · checked Sep 4, 2026
16
Jared Jacobson Law, LLCIndirect evidence
Philadelphia, United StatesHQ checked Sep 4, 20261-102

“Representing and counseling individuals, investors, entrepreneurs and entities of various sizes across Pennsylvania, New York and New Jersey.”

Source: company website · checked Sep 4, 2026
17
Brennan Strategy, LLCPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-102

“Brennan Strategy, LLC provides consulting services exclusively to law firms in the areas of partner buy-outs, mergers/acquisitions, expert witness testimony and more.”

Source: company website · checked Sep 4, 2026
18
JM LAW Group, LLCPartial evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-102

“We are a an entrepreneurial law firm that takes great care in providing outside general counsel and transactional expertise to our clients.”

Source: company website · checked Sep 4, 2026
19
Astor Weiss Kaplan MandelIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 202611-501

“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: company website · checked Sep 4, 2026
20
S. Gallant LAWIndirect evidence
Philadelphia, PA, United StatesHQ checked Sep 4, 20261-101

“S.”

Source: company website · checked Sep 4, 2026

Showing 20 of 46 law firm administrative services based in Philadelphia, United States

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Law firm administrative services based in Philadelphia, United States at a glance

As of Sep 4, 2026
1-10Median size (employees)
New YorkLargest hub · 325 HQs
Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
29
11-50
9
51-200
5
201-500
2
501-1,000
1

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 Philadelphia, over 46 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 law firm administrative services, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “law firm administrative services”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among law firm administrative services, 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 an evidence 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, 887 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 4, 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.

Law firm administrative services by metro in the United States

Frequently asked

How many law firm administrative services are there based in Philadelphia, United States?

RevenueBase identified 46 law firm administrative services 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?

Saul Ewing LLP, headquartered in Philadelphia, tops this list with the largest team on record.

Which city has the most law firm administrative services?

New York leads with 325 headquartered companies, followed by Chicago (191) and Los Angeles (179).

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 887 verified decision-maker contacts tracked across these 46 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 4, 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 SmartSearch, 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.