# The 30 largest professional services firms in New York
Tamtam tracks 735 professional services firms headquartered in New York. This list ranks the 30 largest by number of employees on LinkedIn, led by Genpact, Kyndryl and Goldman Sachs. Their median headcount is 10,588. Half of them were founded in 1992 or later.
The professional services sector in New York is characterized by a significant presence of large, established firms. Companies like Genpact, with over 150,000 employees, specialize in digital operations and AI solutions, while Kyndryl focuses on advanced technology infrastructure. Goldman Sachs is a major player in financial services, and Marsh McLennan provides risk management and strategic consulting.
This list highlights a concentration of firms founded in the late 20th and early 21st centuries, indicating a period of growth in professional services. EXL partners with businesses for data-driven solutions, and VML is a global creative agency. A notable pattern is the dominance of business consulting, IT services, and financial services within this group.
๐บ๐ธ New York ยท 30 companies ยท Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Genpact](https://www.tamtam.ai/c/genpact) (genpact.com)
A global professional services firm with over 125,000 employees in 30+ countries, specializing in digital operations, data, technology, and AI solutions for leading enterprises | Business Consulting and Services | ๐บ๐ธ New York | 151,199 | 1997 |
| 2 | [Kyndryl](https://www.tamtam.ai/c/kyndryl) (kyndryl.com)
A global leader in designing, running, and managing advanced technology infrastructure, focusing on excellence, innovation, and advancing vital systems for human progress | IT Services and IT Consulting | ๐บ๐ธ New York | 90,000 | 2021 |
| 3 | [Goldman Sachs](https://www.tamtam.ai/c/goldman-sachs) (goldmansachs.com)
Global financial institution providing expert capital markets services, investment banking, and asset management for clients through partnership, integrity, and world-class operational excellence. | Financial Services | ๐บ๐ธ New York | 76,000 | |
| 4 | [WNS](https://www.tamtam.ai/c/wns) (wns.com)
Global provider of digital-led business transformation, combining industry knowledge, technology, analytics, and process expertise to deliver innovative solutions. | Business Consulting and Services | ๐บ๐ธ New York | 61,367 | 1996 |
| 5 | [EXL](https://www.tamtam.ai/c/exl) (exlservice.com)
The company partners with businesses to tailor data-driven solutions, improve efficiency, enhance customer relationships, and drive revenue growth through collaboration and technology | Business Consulting and Services | ๐บ๐ธ New York | 58,974 | 1999 |
| 6 | [Marsh McLennan](https://www.tamtam.ai/c/marsh-mclennan) (corporate.marsh.com)
Provides risk management, strategic consulting, and human resources solutions to clients worldwide, enhancing their ability to navigate challenges and seize opportunities. | Professional Services | ๐บ๐ธ New York | 40,340 | 1871 |
| 7 | [VML](https://www.tamtam.ai/c/vml) (vml.com)
Global creative agency combining brand experience, customer experience, and commerce with deep data and technology expertise for clients. | Advertising Services | ๐บ๐ธ New York | 34,192 | |
| 8 | [Marsh Risk](https://www.tamtam.ai/c/marsh-risk) (marsh.com)
A global leader in insurance brokerage and risk advisory, providing data-driven solutions and advisory services to clients worldwide | Insurance | ๐บ๐ธ New York | 26,000 | |
| 9 | [Mercer Espaรฑa](https://www.tamtam.ai/c/mercer-espana) (mercer.com)
Mercer is a global consultancy business focused on providing trusted advice and solutions to help organizations build brighter, healthier, and more sustainable futures | Professional Training and Coaching | ๐บ๐ธ New York | 25,000 | 1945 |
| 10 | [TransPerfect](https://www.tamtam.ai/c/transperfect) (transperfect.com)
A global leader in language services and technologies, helping businesses expand internationally through translation, localization, multicultural marketing, interpretation, and more | Translation and Localization | ๐บ๐ธ New York | 17,809 | 1992 |
| 11 | [Synechron](https://www.tamtam.ai/c/synechron) (synechron.com)
Innovative consulting firm leveraging digital technology to deliver leading solutions in AI, digital, cloud, data, and software engineering for financial services and technology industries globally | Technology, Information and Internet | ๐บ๐ธ New York | 14,671 | 2001 |
| 12 | [Alvarez & Marsal](https://www.tamtam.ai/c/alvarez-and-marsal) (alvarezandmarsal.com)
Global professional services firm specializing in business transformation, restructuring, performance improvement, and delivering practical solutions for complex organizational challenges. | Business Consulting and Services | ๐บ๐ธ New York | 14,064 | |
| 13 | [Marsh](https://www.tamtam.ai/c/marsh) (marsh.com)
provides risk management, strategy consulting, and people advisory services to clients worldwide across multiple specialized business units | Professional Services | ๐บ๐ธ New York | 12,940 | |
| 14 | [GLG](https://www.tamtam.ai/c/glg) (glg.com)
Connecting decision makers with experts for true clarity and insights to make informed decisions and stay ahead in their profession Visit website for more details | Information Services | ๐บ๐ธ New York | 12,228 | 1998 |
| 15 | [WSP in the U.S.](https://www.tamtam.ai/c/wsp-in-the-u-s) (wsp.com)
This professional services consulting firm plans, advises, designs, manages, and engineers sustainable solutions that shape communities for future generations to thrive | Professional Services | ๐บ๐ธ New York | 10,588 | |
| 16 | [Accenture Song](https://www.tamtam.ai/c/accenture-song) (accenture.com)
This company is the world's largest creative group powered by technology, offering innovative solutions to clients | Marketing Services | ๐บ๐ธ New York | 10,047 | |
| 17 | [Oliver Wyman](https://www.tamtam.ai/c/oliver-wyman) (oliverwyman.com)
Provide strategic advice and collaborative consulting to help clients navigate critical decisions and transformative changes for growth and success. | Business Consulting and Services | ๐บ๐ธ New York | 9,772 | |
| 18 | [IPG Mediabrands](https://www.tamtam.ai/c/ipg-mediabrands) (omnicommedia.com)
manages global marketing investments through full-service agencies and specialty units, serving diverse industries with media and marketing solutions | Advertising Services | ๐บ๐ธ New York | 8,776 | |
| 19 | [CI&T](https://www.tamtam.ai/c/ci-and-t) (ciandt.com)
AI-powered digital solutions provider partnering with top brands to drive business transformation through strategic innovation and scalable solutions | IT Services and IT Consulting | ๐บ๐ธ New York | 8,592 | 1995 |
| 20 | [Data Entry Job (Remote Job)](https://www.tamtam.ai/c/data-entry-job-remote-job) (omnilabes.com)
This company specializes in hiring remote data entry clerks They are currently looking to fill positions in this field | Software Development | ๐บ๐ธ New York | 8,442 | |
| 21 | [White & Case LLP](https://www.tamtam.ai/c/white-and-case-llp) (whitecase.com)
Global law firm providing cross-border legal services with local expertise, innovative solutions, and client-focused guidance for complex issues. | Law Practice | ๐บ๐ธ New York | 8,237 | 1901 |
| 22 | [Epiq](https://www.tamtam.ai/c/epiq) (epiqglobal.com)
Provides technology-enabled services for corporate counsel, law firms, and business professionals, streamlining administration of legal department, business operations, eDiscovery, and regulatory matters. | Law Practice | ๐บ๐ธ New York | 8,206 | 1988 |
| 23 | [Omnicom](https://www.tamtam.ai/c/omnicom-new-york) (omc.com)
Global marketing communications company offering integrated marketing services for 200+ brands worldwide, known for talent, creativity, and digital innovation | Advertising Services | ๐บ๐ธ New York | 8,062 | |
| 24 | [Jefferies](https://www.tamtam.ai/c/jefferies) (jefferies.com)
Global full-service investment banking and capital markets firm providing advisory, sales, trading, research, wealth and asset management services to investors, companies and governments. | Investment Banking | ๐บ๐ธ New York | 8,019 | 1962 |
| 25 | [Newmark](https://www.tamtam.ai/c/newmark) (nmrk.com)
Advisory and service provider for commercial real estate, serving institutional investors, corporations, owners, and occupiers worldwide with tailored solutions. | Real Estate | ๐บ๐ธ New York | 7,201 | 1929 |
| 26 | [Kroll](https://www.tamtam.ai/c/kroll) (kroll.com)
Leading provider of risk and financial advisory solutions, offering insights, data, and technology to help clients navigate complex demands and gain competitive advantage | Business Consulting and Services | ๐บ๐ธ New York | 7,199 | |
| 27 | [Any Studios](https://www.tamtam.ai/c/any-studios) (anystudios.com)
The company specializes in creating brand stories through strategic design and high-quality production services | Design Services | ๐บ๐ธ New York | 7,103 | 2015 |
| 28 | [Brown Brothers Harriman](https://www.tamtam.ai/c/brown-brothers-harriman) (bbh.com)
Global financial services firm providing investor services, asset servicing, investment management, private equity, corporate advisory, and banking solutions worldwide. | Financial Services | ๐บ๐ธ New York | 6,819 | 1818 |
| 29 | [Fragomen](https://www.tamtam.ai/c/fragomen) (fragomen.com)
Provides comprehensive immigration legal services and technology solutions to corporate, academic, nonprofit, and individual clients globally. | Law Practice | ๐บ๐ธ New York | 6,656 | 1951 |
| 30 | [Apollo Global Management, Inc.](https://www.tamtam.ai/c/apollo-global-management-inc) (apollo.com)
Global alternative asset manager providing excess returns across risk-reward spectrum from investment grade credit to private equity and specialized retirement savings products. | Financial Services | ๐บ๐ธ New York | 5,845 | 1990 |
## How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
## More company lists in New York
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- [IT services companies in New York](https://www.tamtam.ai/l/it-services-companies-new-york) (331)
- [Retail chains in New York](https://www.tamtam.ai/l/retail-chains-new-york) (326)
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- [Data and analytics companies in New York](https://www.tamtam.ai/l/data-analytics-companies-new-york) (303)
- [Technology, Information and Internet companies in New York](https://www.tamtam.ai/l/technology-information-and-internet-companies-new-york) (293)
- [Education providers in New York](https://www.tamtam.ai/l/education-companies-new-york) (284)
## The same list elsewhere in United States
- [Professional services firms in the United States](https://www.tamtam.ai/l/professional-services-firms-united-states) (7,078)
- [Professional services firms in New York State](https://www.tamtam.ai/l/professional-services-firms-new-york-state) (955)
- [Professional services firms in California](https://www.tamtam.ai/l/professional-services-firms-california) (880)
- [Professional services firms in Texas](https://www.tamtam.ai/l/professional-services-firms-texas) (629)
- [Professional services firms in Florida](https://www.tamtam.ai/l/professional-services-firms-florida) (375)
- [Professional services firms in Virginia](https://www.tamtam.ai/l/professional-services-firms-virginia) (344)
- [Professional services firms in Illinois](https://www.tamtam.ai/l/professional-services-firms-illinois) (339)
- [Professional services firms in Massachusetts](https://www.tamtam.ai/l/professional-services-firms-massachusetts) (249)
- [Professional services firms in New Jersey](https://www.tamtam.ai/l/professional-services-firms-new-jersey) (249)
- [Professional services firms in Georgia](https://www.tamtam.ai/l/professional-services-firms-georgia) (246)
- [Professional services firms in Pennsylvania](https://www.tamtam.ai/l/professional-services-firms-pennsylvania) (245)
- [Professional services firms in Ohio](https://www.tamtam.ai/l/professional-services-firms-ohio) (195)
- [Professional services firms in Maryland](https://www.tamtam.ai/l/professional-services-firms-maryland) (176)
- [Professional services firms in Michigan](https://www.tamtam.ai/l/professional-services-firms-michigan) (172)
- [Professional services firms in Washington State](https://www.tamtam.ai/l/professional-services-firms-washington-state) (163)
- [Professional services firms in North Carolina](https://www.tamtam.ai/l/professional-services-firms-north-carolina) (142)
- [Professional services firms in Alabama](https://www.tamtam.ai/l/professional-services-firms-alabama) (135)
- [Professional services firms in Minnesota](https://www.tamtam.ai/l/professional-services-firms-minnesota) (125)
- [Professional services firms in Chicago](https://www.tamtam.ai/l/professional-services-firms-chicago) (196)
- [Professional services firms in Houston](https://www.tamtam.ai/l/professional-services-firms-houston) (156)
- [Professional services firms in Atlanta](https://www.tamtam.ai/l/professional-services-firms-atlanta) (143)
- [Professional services firms in San Francisco](https://www.tamtam.ai/l/professional-services-firms-san-francisco) (130)
- [Professional services firms in Washington](https://www.tamtam.ai/l/professional-services-firms-washington) (109)
- [Professional services firms in Los Angeles](https://www.tamtam.ai/l/professional-services-firms-los-angeles) (108)
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Source: https://www.tamtam.ai/l/professional-services-firms-new-york