These New York-based information services companies offer a range of specialized data, research, and expert-led insights. The list includes large enterprises like Freelance and Freelance Insider, which support a broad network of self-employed professionals, alongside mid-sized firms providing targeted intelligence.
Notable companies include GLG, connecting decision-makers with experts; Guidepoint, offering on-demand intelligence; Norstella, assisting pharmaceutical clients; and Altrata, providing data on impactful individuals. A common theme among these companies is their focus on delivering actionable insights, whether through expert networks, market research, or specialized data platforms, predominantly for business and financial sectors.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 12,228 | ||||
| 2 |
Guidepointguidepoint.com
A research enablement platform utilizing technology and expertise to deliver on-demand intelligence and research, empowering clients' decision-making process |
4,642 | |||
| 3 |
New York
The company operates in the New York metropolitan area, contributing to its significant economic growth and development through various industries |
2,781 | |||
| 4 |
Norstellanorstella.com
A group of pharmaceutical solutions providers assisting clients through the drug development life cycle, from pipeline to patient |
1,427 | |||
| 5 |
Pentoninforma.com
A US-based information services company acquired by the Informa Group, offering news on various brands but no longer updating this platform |
1,393 | |||
| 6 |
Altrataaltrata.com
Global partner providing data and intelligence on impactful people for client success Offers unique solutions with millions of profiles for deeper insights and connections |
1,070 | |||
| 7 |
SNL Financialspglobal.com
Integrated financial and industry data, research, and news to provide tools for investment decision-making, performance tracking, and risk assessment |
863 | |||
| 8 |
Capvisioncapvision.com
Global expert knowledge services provider, founded by former consultants and investment bankers Partners with clients to provide expert consultations, surveys, and customized research solutions |
751 | |||
| 9 |
Coleman Researchcolemanrg.com
Global insights provider connecting leading organizations with specialized industry experts for informed decision-making, now part of VisasQ network with 400,000 senior experts worldwide |
747 | |||
| 10 |
Fashion Snoopsfuturesnoops.com
Provides trend foresight and strategic advisory using expert insights and AI tools across fashion, beauty, home, and consumer industries. |
623 | |||
| 11 | 559 | ||||
| 12 | 542 | ||||
| 13 |
Wolters Kluwer Legal & Regulatory USwolterskluwer.com
Leader in professional information solutions for legal, corporate compliance, and retirement professionals, offering expert domain knowledge combined with specialized technology and services |
483 | |||
| 14 |
Questexquestex.com
Questex specializes in creating events and providing information related to the experience economy, connecting people in markets that enhance life through innovative technologies |
474 | |||
| 15 |
Citelineciteline.com
Provides clinical trial intelligence, data, and insights to accelerate drug development and improve outcomes for life sciences and pharmaceutical industries globally. |
459 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Centelliccentellic.com
Transforms critical decisions on strategy, growth, and risk through indispensable data, intelligence, and analysis platforms after merger of ALM and LBR. |
325 | |||
| 17 |
Myers-Holummyersholum.com
Specializes in NetSuite ERP, Stripe integration, data management, and business intelligence with global delivery and multi-lingual support. |
290 | |||
| 18 |
The Deal by S&P Globalthedeal.com
The company provides coverage and analysis on corporate transactions, including M&A, PE, Restructuring, and Activism to help businesses grow |
269 | |||
| 19 |
Energy Intelligenceenergyintel.com
A leading energy information company offering expert news, analysis, research, data, and advisory services to navigate the changing world of energy |
188 | |||
| 20 |
451 Research451research.com
Delivers data-driven insights and expert research at the intersection of AI, digital infrastructure, and energy, helping leaders navigate technology innovation, disruption, and market forces. |
178 | |||
| 21 |
Thieme Internationalthieme.com
Provider of medical and chemistry information, software, and services internationally, with products for medical education, pharmaceutical industry, and chronic disease management |
176 | |||
| 22 |
Arizentarizent.com
A business information and marketing services provider connecting and empowering leaders in financial and professional services through analysis, research, data, and networking opportunities |
165 | |||
| 23 |
Consumer Edgeconsumeredge.com
A consumer alternative data firm providing insights to investors, corporates, and data partners by utilizing data, research, technology, and partnerships |
155 | |||
| 24 |
JobDivajobdiva.com
Global leader in AI-powered Talent Acquisition and Management, offering SaaS solutions to staffing and recruiting industry Features include CRM, job board synchronization, BI analytics, and resume database |
141 | |||
| 25 |
FoundersCardfounderscard.com
A community of over 100,000 successful entrepreneurs and influencers providing exclusive benefits like elite travel status and member-only pricing |
99 | |||
| 26 |
EDM Associationedmcouncil.org
The company is a non-profit trade association that advances data management and analytics through standards, best practices, and industry guidelines |
89 | |||
| 27 |
S3 Partnerss3partners.com
Global company providing advanced financial data analytics and workflow technology to improve accuracy and speed of public financial indicators. |
71 | |||
| 28 |
Membermember.com
The company can be visited on wwwmembercom for more information regarding their products or services |
52 | |||
| 29 |
Advan Research Corporationadvanresearch.com
Institutional-quality geolocation data provider for businesses and investors, offering accurate data, analytics, and market insights to make informed decisions |
26 | |||
| 30 |
Paragon Intelparagonintel.com
ManagementTrack provides investors with insights on executives' capabilities to predict company performance and identify management-driven market opportunities through deep human investigation |
20 | |||
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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 15, 2026.
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- Retail Apparel and Fashion companies in New York 334
- IT services companies in New York 331
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- Media companies and publishers in New York 304
- Data and analytics companies in New York 303
- Technology, Information and Internet companies in New York 293
The same list elsewhere in United States
- Information Services companies in the United States 169
- Information Services companies in New York State 41