Company lists · Data refreshed September 2026
Top 23 Law firm business process outsourcing companies based in Philadelphia, United States
RevenueBase identified 34 law firm business process outsourcing companies headquartered in Philadelphia, United States as of September 2026 and tracks 9,488 professional contacts across them, including 4,532 with verified work emails. Across the United States, New York is the largest hub for this category (192 companies); Philadelphia has 34.
This list covers law firm business process outsourcing companies 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.
The 23 largest law firm business process outsourcing companies based in Philadelphia, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,848 contacts → | ||||
Indirect evidence “Faegre Drinker is a firm designed for clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,843 contacts → | ||||
Partial evidence “Duane Morris LLP, a law firm with more than 900 attorneys in offices across the United States and internationally, is asked by a broad array of clients to provide innovative…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 416 contacts → | ||||
Partial evidence “Founded in 1899, White and Williams LLP is a global-reaching, multi-practice law firm with over 200 lawyers in ten offices.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 237 contacts → | ||||
Partial evidence “The MCS Group, Inc, a certified Women’s Business Enterprise, is a nationally-recognized provider of outsourcing services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 190 contacts → | ||||
Partial evidence “For over 30 years, Reliable has been the trusted and cost-effective services provider to leading law firms, corporations, and other businesses throughout the United States.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 133 contacts → | ||||
Indirect evidence “Zarwin Baum DeVito Kaplan Schaer, P.C.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 102 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 51 contacts → | ||||
Partial evidence “GGM is a full service law firm headquartered in Philadelphia.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Partial evidence “The Jacobs Law Group, PC is a boutique business law firm based in Center City Philadelphia.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Partial evidence “Raju LLP is a full service, inside/outside (I/O) law firm serving a portfolio of national and international clients as both embedded in-house counsel and outside legal counsel.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Partial evidence “GrowthCounsel is an entrepreneurial law firm that provides value-driven services to businesses at every stage of their life cycle.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Indirect evidence “For more than three decades, Sand & Saidel, P.C.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Indirect evidence “Capstone is dedicated to providing results-oriented, forward-thinking and creative solutions to emerging and middle market companies while providing fee certainty through its…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Partial evidence “GLG champions for its clients’ legal needs and cultivates personal relationships with each throughout the process.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Partial evidence “I believe that the traditional law firm model is antiquated for the needs of today's modern startup.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “GenCounsel™ is an innovative business services platform providing value to clients and seasoned “in-house” professionals.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Partial evidence “Philadelphia law firm helping individuals and small/mid-sized businesses resolve their legal issues.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “TadrossLaw was founded with the goal of helping our clients with their legal needs, whether they be litigation or transactional issues.” Source: RevenueBase Database · checked Sep 28, 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: law firm business process outsourcing companies. 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 law firm business process outsourcing companies.
- Partial evidence
- Its own public description names part of law firm business process outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name law firm business process outsourcing companies. 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 23 of 34 law firm business process outsourcing companies based in Philadelphia, United States
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Law firm business process outsourcing companies based in Philadelphia, United States at a glance
As of Sep 28, 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 34 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 business process outsourcing companies, 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 “law firm business process outsourcing companies”. 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 law firm business process outsourcing companies), 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 law firm business process outsourcing companies, 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, 4,532 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.
Law firm business process outsourcing companies by metro in the United States
- Law firm business process outsourcing companies in New York192
- Law firm business process outsourcing companies in Los Angeles100
- Law firm business process outsourcing companies in Chicago94
- Law firm business process outsourcing companies in Houston72
- Law firm business process outsourcing companies in Atlanta71
- Law firm business process outsourcing companies in Dallas69
- Law firm business process outsourcing companies in Miami64
- Law firm business process outsourcing companies in San Francisco61
- Law firm business process outsourcing companies in Washington42
- Law firm business process outsourcing companies in Seattle40
- Law firm business process outsourcing companies in Austin33
- Law firm business process outsourcing companies in Denver33
- Law firm business process outsourcing companies in Irvine32
- Law firm business process outsourcing companies in Boston26
- Law firm business process outsourcing companies in Las Vegas26
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 law firm business process outsourcing companies, 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 law firm business process outsourcing companies are there based in Philadelphia, United States?
RevenueBase identified 34 law firm business process outsourcing companies 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?
Faegre Drinker, headquartered in Philadelphia, tops this list with the largest team on record.
Which city in the United States has the most law firm business process outsourcing companies?
New York leads the United States with 192 headquartered companies, followed by Los Angeles (100) and Chicago (94). Philadelphia has 34.
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 4,532 verified decision-maker contacts tracked across these 34 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.
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