Company lists · Data refreshed September 2026
Top 25 Union compliance law firms based in Pittsburgh, United States
RevenueBase identified 56 union compliance law firms headquartered in Pittsburgh, United States as of September 2026 and tracks 2,427 professional contacts across them, including 1,269 with verified work emails. Across the United States, New York is the largest hub for this category (447 companies); Pittsburgh has 56.
This list covers union compliance law firms headquartered in Pittsburgh, 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 29, 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 union compliance law firms based in Pittsburgh, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 570 contacts → | ||||
Indirect evidence “Eckert Seamans Cherin & Mellott LLC has lawyers in offices throughout the United States, including Harrisburg, Philadelphia, and Pittsburgh, Pennsylvania; Boston, Massachusetts…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 400 contacts → | ||||
Indirect evidence “21 Offices | 11 States | 1 Firm Dickie, McCamey & Chilcote, P.C.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 357 contacts → | ||||
Indirect evidence “Our Commitment The Mission of Cipriani & Werner, P.C.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 310 contacts → | ||||
Indirect evidence “At Burns White LLC, we are committed to representing our clients with excellence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 192 contacts → | ||||
Indirect evidence “As a collaborative and integrated group of attorneys, we work as a unified team, not as sole practitioners.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 131 contacts → | ||||
Indirect evidence “Pietragallo Gordon Alfano Bosick & Raspanti, LLP is a midsize business and litigation firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 111 contacts → | ||||
Partial evidence “Meyer, Unkovic & Scott LLP is a business law firm whose diverse clientele includes Fortune 100 companies, significant financial institutions, small venture enterprises and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 56 contacts → | ||||
Indirect evidence “From literally writing the book on Pennsylvania Commercial Litigation, to winning landmark cases about unfair trade practices, to pioneering the formation and approvals of charter…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 23 contacts → | ||||
Partial evidence “Marcus & Shapira LLP combines the efficiency and economy of a boutique law firm with the diverse practice and specialized expertise of the largest firms in the region.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 23 contacts → | ||||
Partial evidence “Friday & Cox LLC is an injury and compensation law firm representing clients throughout western Pennsylvania with offices in Pittsburgh and Erie.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 22 contacts → | ||||
Indirect evidence “At Woomer & Talarico each attorney has exceptional expertise in his or her area of practice.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 17 contacts → | ||||
Indirect evidence “J.P.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 16 contacts → | ||||
Indirect evidence “Feinstein Doyle Payne & Kravec, LLC offers innovative, client-centered, and cost-effective representation in a number of areas, including class and collective actions, insurance…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 16 contacts → | ||||
Indirect evidence “Robb Leonard Mulvihill represents clients in federal and state trial and appellate courts, in administrative agencies, in arbitration, and in other dispute resolution proceedings.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 15 contacts → | ||||
Partial evidence “At Dugan & Associates, we have been serving the legal needs of people throughout western Pennsylvania since Our founding attorney, Mitchell Dugan, has been practicing law since…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 8 contacts → | ||||
Indirect evidence “DEL SOLE CAVANAUGH STROYD LLC provides the highest quality legal services to private and publicly-held businesses, emerging companies and individuals.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Partial evidence “Schiffman Firm, LLC is a law firm located in Pittsburgh, PA providing services in the following areas of practice: personal injury law, estate litigation, employment law, workers'…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Partial evidence “Rothman Gordon is a Pittsburgh-based law firm that has been advocating its clients' interests since 1954.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Indirect evidence “Each year, countless individuals are harmed by corporate wrongdoing.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 contacts → | ||||
Partial evidence “Block & Associates is a full-service law firm dedicated to providing legal services to individuals and businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 6 contacts → | ||||
Indirect evidence “We represent businesses and individual clients in a wide array of civil litigation matters including accident and injury cases, construction matters, insurance disputes, workplace…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Indirect evidence “Manes & Narahari LLC represents workers and small business owners in a variety of legal matters.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Partial evidence “Call Now (800) 727-4878 Pittsburgh injury and Disability attorneys at the Law Office of Mansmann Moore.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 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: union compliance 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 union compliance law firms.
- Partial evidence
- Its own public description names part of union compliance law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name union compliance 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 56 union compliance law firms based in Pittsburgh, United States
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Union compliance law firms based in Pittsburgh, United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Pittsburgh, so it is reported there. Company counts and contact totals on this page are exact for Pittsburgh, over 56 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 union compliance 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 Pittsburgh, United States whose own description of what they do matches “union compliance 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 union compliance 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 union compliance law firms, and records with no verified work email. Companies headquartered outside Pittsburgh 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, 1,269 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 29, 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.
Union compliance law firms by metro in the United States
- Union compliance law firms in New York447
- Union compliance law firms in Los Angeles327
- Union compliance law firms in Chicago250
- Union compliance law firms in Houston174
- Union compliance law firms in San Diego153
- Union compliance law firms in Atlanta152
- Union compliance law firms in Dallas142
- Union compliance law firms in San Francisco142
- Union compliance law firms in Washington136
- Union compliance law firms in Boston115
- Union compliance law firms in Irvine98
- Union compliance law firms in Philadelphia93
- Union compliance law firms in Seattle88
- Union compliance law firms in Minneapolis86
- Union compliance law firms in Denver85
- Union compliance law firms in Miami80
- Union compliance law firms in Austin75
- Union compliance law firms in Tampa73
- Union compliance law firms in Phoenix67
- Union compliance law firms in Portland60
- Union compliance law firms in New Orleans59
- Union compliance law firms in Birmingham57
- Union compliance law firms in Sacramento57
- Union compliance law firms in Cleveland56
- Union compliance law firms in Pasadena56
- Union compliance law firms in Beverly Hills49
- Union compliance law firms in Oakland48
- Union compliance law firms in Charlotte46
- Union compliance law firms in Fort Lauderdale44
- Union compliance law firms in Raleigh44
- Union compliance law firms in Columbus43
- Union compliance law firms in Kansas City43
- Union compliance law firms in Baltimore41
- Union compliance law firms in Las Vegas40
- Union compliance law firms in San Antonio39
- Union compliance law firms in Springfield39
- Union compliance law firms in Oklahoma City38
- Union compliance law firms in Columbia37
- Union compliance law firms in Glendale37
- Union compliance law firms in Coral Gables36
- Union compliance law firms in Orlando35
- Union compliance law firms in San Jose35
- Union compliance law firms in Milwaukee34
- Union compliance law firms in Nashville34
- Union compliance law firms in Jacksonville33
- Union compliance law firms in Cincinnati32
- Union compliance law firms in Indianapolis31
- Union compliance law firms in Richmond31
- Union compliance law firms in Tulsa31
- Union compliance law firms in Charleston30
- Union compliance law firms in Long Beach30
- Union compliance law firms in Newport Beach29
- Union compliance law firms in Walnut Creek28
- Union compliance law firms in Fort Worth27
- Union compliance law firms in Troy27
- Union compliance law firms in Boca Raton26
- Union compliance law firms in Rochester25
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 union compliance 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 union compliance law firms are there based in Pittsburgh, United States?
RevenueBase identified 56 union compliance law firms headquartered in Pittsburgh, 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?
Eckert Seamans, headquartered in Pittsburgh, tops this list with the largest team on record.
Which city in the United States has the most union compliance law firms?
New York leads the United States with 447 headquartered companies, followed by Los Angeles (327) and Chicago (250). Pittsburgh has 56.
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 1,269 verified decision-maker contacts tracked across these 56 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 29, 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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