Company lists · Data refreshed September 2026
Top 25 Labor relations consultants based in the United States
RevenueBase identified 2,325 labor relations consultants headquartered in the United States as of September 2026 and tracks 22,428 professional contacts across them, including 10,710 with verified work emails. New York is the largest hub.
This list covers labor relations consultants headquartered in the 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 20, 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 labor relations consultants based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,866 contacts → | ||||
Indirect evidence “At Allegis Global Solutions (AGS), we’re in the human enterprise business.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,555 contacts → | ||||
Partial evidence “Littler is the largest global employment and labor law practice, representing management in all aspects of employment and labor law and serving as a single-source solution…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,285 contacts → | ||||
Partial evidence “Focused on employment and labor law since 1958, Jackson Lewis P.C.’s attorneys located in major cities nationwide consistently identify and respond to new ways workplace law…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,471 contacts → | ||||
Indirect evidence “With hundreds of attorneys across the globe, Fisher Phillips advises and advocates for employers internationally on some of the most complex and high-profile workplace matters.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 746 contacts → | ||||
Indirect evidence “FordHarrison LLP - your partner in employment law.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 199 contacts → | ||||
Indirect evidence “Employers Council is the country’s largest Employers Association.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 198 contacts → | ||||
Indirect evidence “We are your partner in business providing solutions from recruitment, assessment, training, development, career management, outsourcing, and workforce consulting.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 188 contacts → | ||||
Indirect evidence “Liebert Cassidy Whitmore serves as trusted advisors to public agencies, educational institutions, and nonprofits across California.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 185 contacts → | ||||
Indirect evidence “Nexeo is a dynamic full-service human resources firm that provides employers with comprehensive recruiting and staffing, payroll and benefits solutions, and consulting and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 138 contacts → | ||||
Indirect evidence “Procare HR offers complete HR solutions for care providers.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 123 contacts → | ||||
Indirect evidence “Ask business owners about their toughest challenges and at the top of the list is managing employees.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 119 contacts → | ||||
Indirect evidence “Martenson, Hasbrouck & Simon LLP is headquartered in Atlanta, with offices in Carlsbad, Chicago, Dallas, New York, and Sacramento, making us geographically and strategically…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 118 contacts → | ||||
Indirect evidence “4Consulting (4Ci) is the leading provider of consulting, advisory, and workforce management solutions for global consulting firms, government and public sector, and fortune 500…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 116 contacts → | ||||
Indirect evidence “Founded in 1998, OutSolve has evolved into a premier compliance-driven HR advisory firm, leveraging deep expertise to simplify complex regulatory landscapes for businesses of all…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 102 contacts → | ||||
Indirect evidence “At Alcott HR, we have a Passion for People and Performance™.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 98 contacts → | ||||
Indirect evidence “Employers Group is YOUR Human Resources Expert, Advocate, and Advisor.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 93 contacts → | ||||
Indirect evidence “Archbright™ is the go-to resource for employers offering expert HR, safety, and legal support.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 90 contacts → | ||||
Indirect evidence “APTMetrics provides Strategic Workforce Engineering to ensure that your organization has the right people, with the right skills, in the right roles, at the right time, to achieve…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 87 contacts → | ||||
Partial evidence “People Results is an experienced team of consultants who collaborate, innovate, and anticipate mission-critical challenges and deliver impactful business results.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 80 contacts → | ||||
Indirect evidence “TEAMING WITH EMPLOYERS TO BUILD A BETTER WORKPLACE® We are a different kind of law firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 80 contacts → | ||||
Partial evidence “Willig, Williams & Davidson is one of the largest and most respected union-side labor law firms in the United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 77 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 75 contacts → | ||||
Indirect evidence “Catapult Employers Association is the result of the merger of Capital Associated Industries (CAI) of Raleigh and the Triad and The Employers Association (TEA) of Charlotte.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 75 contacts → | ||||
Indirect evidence “Skywalk Group is a professional services organization focusing on the areas of Recruiting, Human Resources Management, and Organizational Training and Development.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 71 contacts → | ||||
Indirect evidence “Flex HR is your one-stop human resource services firm, supporting any and ALL HR functions.” Source: RevenueBase Database · checked Sep 20, 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: labor relations consultants. 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 labor relations consultants.
- Partial evidence
- Its own public description names part of labor relations consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name labor relations consultants. 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 2,325 labor relations consultants based in the United States
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Labor relations consultants based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,325 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 labor relations consultants, 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 the United States whose own description of what they do matches “labor relations consultants”. 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 labor relations consultants), 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 labor relations consultants, and records with no verified work email. Companies headquartered outside United States 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, 10,710 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 20, 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.
Labor relations consultants by metro
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 labor relations consultants, 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 labor relations consultants are there based in the United States?
RevenueBase identified 2,325 labor relations consultants headquartered in the 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?
Allegis Global Solutions, headquartered in Hanover, tops this list with the largest team on record.
Which city has the most labor relations consultants?
New York leads with 78 headquartered companies, followed by Los Angeles (56) and Atlanta (55).
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 10,710 verified decision-maker contacts tracked across these 2,325 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 20, 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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- Labor relations consultants based in Melbourne, Australia
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- Labor relations consultants based in Belo Horizonte, Brazil
- Labor relations consultants based in Campinas, Brazil
- Labor relations consultants based in Curitiba, Brazil
- Labor relations consultants based in Porto Alegre, Brazil