# Information Services companies headquartered in the United States

Tamtam tracks 169 Information Services companies headquartered in the United States. This list ranks the 50 largest by number of employees on LinkedIn, led by NielsenIQ, Experian and Gartner. Their median headcount is 1,070. Half of them were founded in 2001 or later. The most common headquarters are New York (13), Dallas (2) and San Francisco (2).

These US information services companies mostly provide data, analytics, and expert insights to businesses across various sectors. The list includes large organizations like Freelance, which offers journalism and writing services, and NielsenIQ, a consumer intelligence firm. Other notable companies are Experian, focused on data management and fraud prevention, and Gartner, known for its expert-led research. Most of these companies are well-established, with several founded in the 1970s and 1980s.

A significant pattern is the concentration of headquarters in New York, with companies such as Freelance, Freelance Insider, GLG, and Guidepoint based there. Other key locations include Stamford, home to Gartner and ISG, and Chicago, where NielsenIQ is headquartered. These firms primarily serve other businesses, helping them with decision-making, risk management, and operational efficiency.

🇺🇸 United States · 50 companies · Updated Nov 15, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [NielsenIQ](https://www.tamtam.ai/c/nielseniq) (nielseniq.com)<br>A leading consumer intelligence company offering comprehensive consumer insights, advanced analytics, and global retail data to drive growth opportunities | Information Services | 🇺🇸 Chicago | 29,989 | 1923 |
| 2 | [Experian](https://www.tamtam.ai/c/experian) (experianplc.com)<br>Global information services company empowering consumers and clients to manage data confidently, make smarter decisions, prevent fraud, and maximize opportunities worldwide | Information Services | 🇺🇸 Costa Mesa | 26,255 | 1980 |
| 3 | [Gartner](https://www.tamtam.ai/c/gartner) (gartner.com)<br>A global company providing expert-led research and data-driven insights to help executives make faster, smarter decisions and achieve stronger performance | Information Services | 🇺🇸 Stamford | 22,206 | 1979 |
| 4 | [GLG](https://www.tamtam.ai/c/glg) (glg.com)<br>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 | 🇺🇸 New York | 12,228 | 1998 |
| 5 | [Remotasks](https://www.tamtam.ai/c/remotasks) (remotasks.com)<br>Participate in cutting-edge AI projects, shape the future of AI tools, and contribute to smarter, faster, and safer AI models Gain valuable professional experience | Information Services | 🇺🇸 San Francisco | 8,140 | 2017 |
| 6 | [Verisk](https://www.tamtam.ai/c/verisk) (verisk.com)<br>Provides expert data-driven analytic insights and advanced technologies to help the global insurance industry manage risk and improve resilience. | Information Services | 🇺🇸 Jersey City | 5,798 | 1971 |
| 7 | [Dun & Bradstreet](https://www.tamtam.ai/c/dun-and-bradstreet) (dnb.com)<br>Provides global business data and analytics to help companies improve performance, manage risk, and identify growth opportunities effectively. | Information Services | 🇺🇸 Jacksonville | 5,768 |  |
| 8 | [CoreLogic](https://www.tamtam.ai/c/corelogic) (cotality.com)<br>The company provides data, analytics, and platforms to help people find, buy, and protect homes, enabling a seamless home-ownership journey | Information Services | 🇺🇸 Irvine | 4,926 |  |
| 9 | [Guidepoint](https://www.tamtam.ai/c/guidepoint) (guidepoint.com)<br>A research enablement platform utilizing technology and expertise to deliver on-demand intelligence and research, empowering clients' decision-making process | Information Services | 🇺🇸 New York | 4,642 | 2003 |
| 10 | [IPS](https://www.tamtam.ai/c/ips-secaucus) (edenredpay.com)<br>Leading provider of cloud-based solutions transforming accounts payable & invoice processing with data capture, RPA, digital workflows, analytics, and supplier management capabilities | Information Services | 🇺🇸 Secaucus | 3,272 |  |
| 11 | [New York](https://www.tamtam.ai/c/new-york)<br>The company operates in the New York metropolitan area, contributing to its significant economic growth and development through various industries | Information Services | 🇺🇸 New York | 2,781 |  |
| 12 | [EBSCO Information Services](https://www.tamtam.ai/c/ebsco-information-services) (icims.com)<br>Provides optimized research solutions including e-journals, e-books, databases, and discovery services to enhance users' research experience worldwide. | Information Services | 🇺🇸 Ipswich | 2,611 | 1984 |
| 13 | [ISG (Information Services Group)](https://www.tamtam.ai/c/isg-information-services-group) (isg-one.com)<br>Global AI-focused technology research and advisory firm helping organizations optimize technology investments and achieve operational excellence and growth. | Information Services | 🇺🇸 Stamford | 2,189 | 2006 |
| 14 | [JD Power](https://www.tamtam.ai/c/jd-power) (jdpower.com)<br>Global leader in consumer insights, advisory services, data analytics, and AI-powered consumer behavior understanding for major industries worldwide for over 50 years | Information Services | 🇺🇸 Troy | 1,958 | 1968 |
| 15 | [Heatflask](https://www.tamtam.ai/c/heatflask) (heatflask.com)<br>An app created by a single person to showcase recorded activities in a fun and insightful way, despite false claims of employment | Information Services | 🇺🇸 Oakland | 1,950 | 2016 |
| 16 | [Data Axle](https://www.tamtam.ai/c/data-axle) (data-axle.com)<br>It assists clients in establishing clean data foundations, generating leads, strategizing, designing campaigns, and managing daily execution tasks. | Information Services | 🇺🇸 Dallas | 1,537 | 1972 |
| 17 | [Everest Group](https://www.tamtam.ai/c/everest-group) (everestgrp.com)<br>Provides research-based insights and guidance to help business leaders improve operational performance, navigate market challenges, and drive transformation. | Information Services | 🇺🇸 Dallas-Fort Worth Metroplex | 1,486 |  |
| 18 | [Kodak Alaris](https://www.tamtam.ai/c/kodak-alaris) (kodakalaris.com)<br>Provider of intelligent document processing solutions, scanners, software, and services simplifying business processes with innovative image science technology. | Information Services | 🇺🇸 Rochester | 1,463 | 2013 |
| 19 | [Norstella](https://www.tamtam.ai/c/norstella) (norstella.com)<br>A group of pharmaceutical solutions providers assisting clients through the drug development life cycle, from pipeline to patient | Information Services | 🇺🇸 New York | 1,427 |  |
| 20 | [Penton](https://www.tamtam.ai/c/penton) (informa.com)<br>A US-based information services company acquired by the Informa Group, offering news on various brands but no longer updating this platform | Information Services | 🇺🇸 New York | 1,393 |  |
| 21 | [Access \| Information Management](https://www.tamtam.ai/c/access-information-management) (accesscorp.com)<br>A trusted partner in records and information management, providing end-to-end solutions including secure storage, digitalization, and digital transformation services for over 27,000 clients | Information Services | 🇺🇸 Peabody | 1,308 | 2004 |
| 22 | [Cherokee Nation Businesses](https://www.tamtam.ai/c/cherokee-nation-businesses) (cherokeenationbusinesses.com)<br>An economic powerhouse owned by Cherokee Nation, focusing on innovation, diversification, job creation, and generating billions in annual revenue globally | Information Services | 🇺🇸 Tulsa | 1,226 | 2004 |
| 23 | [GGS Information Services](https://www.tamtam.ai/c/ggs-information-services) (ggsinc.com)<br>Global provider of technical information and engineering services for aerospace, defense, automotive, heavy equipment, and agricultural manufacturers, focusing on innovative cost-effective solutions | Information Services | 🇺🇸 York | 1,085 | 1988 |
| 24 | [Recall](https://www.tamtam.ai/c/recall-norcross) (recall.com)<br>Recall offers comprehensive information management services including document storage, digital conversion, data protection, and secure destruction for businesses worldwide, providing peace of mind | Information Services | 🇺🇸 Norcross | 1,070 | 1999 |
| 25 | [Altrata](https://www.tamtam.ai/c/altrata) (altrata.com)<br>Global partner providing data and intelligence on impactful people for client success Offers unique solutions with millions of profiles for deeper insights and connections | Information Services | 🇺🇸 New York | 1,070 |  |
| 26 | ["Work From Home"](https://www.tamtam.ai/c/work-from-home-2001631) (jobicy.com)<br>Connecting individuals with companies through remote, work from home, and flexible job opportunities Business inquiries can be sent to promo@wrkone | Information Services | 🇺🇸 Remote | 1,069 | 2014 |
| 27 | [adamsbridge](https://www.tamtam.ai/c/adamsbridge) (adamsbridge.com)<br>AdamsBridge Global offers sustainable and scalable managed service solutions, allowing clients to focus on core competencies while driving efficiency and value | Information Services | 🇺🇸 Nashville | 985 | 2019 |
| 28 | [Copyright Clearance Center (CCC)](https://www.tamtam.ai/c/copyright-clearance-center-ccc) (copyright.com)<br>Specializing in voluntary collective licensing, data analytics, and copyright expertise, the company collaborates on innovative solutions to advance knowledge and power innovation | Information Services | 🇺🇸 Danvers | 956 | 1978 |
| 29 | [Bloomberg BNA](https://www.tamtam.ai/c/bloomberg-bna) (bloombergindustry.com)<br>A company formerly known as Bloomberg BNA now operates as Bloomberg Industry Group, providing industry-leading insights and analysis | Information Services | 🇺🇸 Arlington | 948 |  |
| 30 | [Cass Information Systems](https://www.tamtam.ai/c/cass-information-systems) (cassinfo.com)<br>Provider of integrated information and payment management solutions for supply chains, communications, facilities, and operations, disbursing over $90 billion annually | Information Services | 🇺🇸 St. Louis | 870 | 1906 |
| 31 | [SNL Financial](https://www.tamtam.ai/c/snl-financial) (spglobal.com)<br>Integrated financial and industry data, research, and news to provide tools for investment decision-making, performance tracking, and risk assessment | Information Services | 🇺🇸 New York | 863 |  |
| 32 | [Industrial Info Resources](https://www.tamtam.ai/c/industrial-info-resources) (industrialinfo.com)<br>Global provider of industrial market intelligence since 1983, helping clients enhance sales strategies, reduce prospecting time, and achieve sales goals)paren | Information Services | 🇺🇸 Sugar Land | 859 | 1983 |
| 33 | [Northstar Travel Group](https://www.tamtam.ai/c/northstar-travel-group) (northstartravelgroup.com)<br>Leading B2B company providing travel industry information, marketing solutions, media brands, events, research, technology, and customized services. | Information Services | 🇺🇸 Rutherford | 811 |  |
| 34 | [Vital Records Control (VRC)](https://www.tamtam.ai/c/vital-records-control-vrc) (vitalrecordscontrol.com)<br>A national leader in digital document management solutions, helping businesses reduce costs and increase productivity throughout the information lifecycle | Information Services | 🇺🇸 Memphis | 758 | 1988 |
| 35 | [Capvision](https://www.tamtam.ai/c/capvision) (capvision.com)<br>Global expert knowledge services provider, founded by former consultants and investment bankers Partners with clients to provide expert consultations, surveys, and customized research solutions | Information Services | 🇺🇸 New York | 751 | 2006 |
| 36 | [Sykes Enterprises](https://www.tamtam.ai/c/sykes-enterprises) (skeyelandenterprises.com)<br>A California-based company specializing in enterprise solutions with a focus on customer service and support, located in Thousand Oaks | Information Services | 🇺🇸 Thousand Oaks | 749 |  |
| 37 | [Coleman Research](https://www.tamtam.ai/c/coleman-research) (colemanrg.com)<br>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 | Information Services | 🇺🇸 New York | 747 | 2003 |
| 38 | [Definitive Healthcare](https://www.tamtam.ai/c/definitive-healthcare) (definitivehc.com)<br>Provider of healthcare commercial intelligence solutions through data, analytics, and expertise, empowering clients to navigate the healthcare market and drive commercial success | Information Services | 🇺🇸 Framingham | 741 | 2011 |
| 39 | [Productive Playhouse](https://www.tamtam.ai/c/productive-playhouse) (productiveplayhouse.com)<br>Provides international language services including localization, transcription, and translation, focusing on human and machine speech, alongside producing children's educational content. | Information Services | 🇺🇸 Los Angeles | 677 | 2009 |
| 40 | [Fashion Snoops](https://www.tamtam.ai/c/fashion-snoops) (futuresnoops.com)<br>Provides trend foresight and strategic advisory using expert insights and AI tools across fashion, beauty, home, and consumer industries. | Information Services | 🇺🇸 New York | 623 | 2001 |
| 41 | [MAERSK](https://www.tamtam.ai/c/maersk) (bp.com)<br>The company provides innovative solutions for a variety of industries, offering cutting-edge products and services to meet client needs | Information Services | 🇺🇸 Newyork | 597 |  |
| 42 | [EBSCO Industries, Inc.](https://www.tamtam.ai/c/ebsco-industries-inc) (ebscoind.com)<br>Sales-driven international company with diverse industries, empowering employees to grow careers through culture and collaboration, prioritizing entrepreneurship and innovation | Information Services | 🇺🇸 Birmingham | 571 | 1944 |
| 43 | [LexisNexis Risk Solutions Group](https://www.tamtam.ai/c/lexisnexis-risk-solutions-group) (lexisnexis.com)<br>A portfolio of brands providing innovative technologies and data services across industries to help customers solve problems, reduce risk, and improve operations | Information Services | 🇺🇸 Alpharetta | 565 |  |
| 44 | [Infogroup](https://www.tamtam.ai/c/infogroup) (data-axle.com)<br>It provides big data, analytics, and marketing services, offering data-driven solutions to enhance sales and customer loyalty for various clients. | Information Services | 🇺🇸 Dallas | 565 | 1972 |
| 45 | [Skift](https://www.tamtam.ai/c/skift) (skift.com)<br>Global travel industry's daily news source providing insights on trends & transformations through news, research, events, interviews, and sector-focused newsletters | Information Services | 🇺🇸 New York | 559 | 2012 |
| 46 | [IDR](https://www.tamtam.ai/c/idr) (idr.co)<br>Global expert network connecting clients with over 500,000 vetted experts for timely, custom recruitment, stakeholder access, and achieving key business objectives with flexible solutions | Information Services | 🇺🇸 New York | 542 | 2020 |
| 47 | [Authentix](https://www.tamtam.ai/c/authentix) (authentix.com)<br>The company provides authentication solutions to protect global supply chains from counterfeiting, with software and physical solutions for various industries | Information Services | 🇺🇸 Addison | 518 | 1996 |
| 48 | [Spire](https://www.tamtam.ai/c/spire-vienna) (spire.com)<br>A global provider of space-based data and analytics, offering insights on Earth to aid decision-making in various industries worldwide | Information Services | 🇺🇸 Vienna | 512 | 2012 |
| 49 | [Sourcescrub](https://www.tamtam.ai/c/sourcescrub) (sourcescrub.com)<br>Deal Sourcing Platform providing investment and M&A teams with comprehensive, accurate, and connected view of private markets | Information Services | 🇺🇸 San Francisco | 501 | 2015 |
| 50 | [Wolters Kluwer Legal & Regulatory US](https://www.tamtam.ai/c/wolters-kluwer-legal-and-regulatory-us) (wolterskluwer.com)<br>Leader in professional information solutions for legal, corporate compliance, and retirement professionals, offering expert domain knowledge combined with specialized technology and services | Information Services | 🇺🇸 New York | 483 |  |

## 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.

## More company lists in the United States

- [The largest companies in the United States](https://www.tamtam.ai/l/largest-companies-united-states) (104,982)
- [Multinational companies in the United States](https://www.tamtam.ai/l/multinational-companies-united-states) (16,192)
- [Manufacturers in the United States](https://www.tamtam.ai/l/manufacturers-united-states) (8,677)
- [Professional services firms in the United States](https://www.tamtam.ai/l/professional-services-firms-united-states) (7,080)
- [Retail chains in the United States](https://www.tamtam.ai/l/retail-chains-united-states) (6,981)
- [Financial services firms in the United States](https://www.tamtam.ai/l/financial-services-firms-united-states) (6,868)
- [Companies with in-house R&D in the United States](https://www.tamtam.ai/l/r-and-d-companies-united-states) (6,794)
- [IT Services and IT Consulting companies in the United States](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-united-states) (6,696)
- [SaaS companies in the United States](https://www.tamtam.ai/l/saas-companies-united-states) (6,410)
- [IT services companies in the United States](https://www.tamtam.ai/l/it-services-companies-united-states) (5,818)
- [Healthcare providers in the United States](https://www.tamtam.ai/l/healthcare-providers-united-states) (5,810)
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- [Hospitals and Health Care companies in the United States](https://www.tamtam.ai/l/hospitals-and-health-care-companies-united-states) (5,573)
- [Hardware manufacturers in the United States](https://www.tamtam.ai/l/hardware-companies-united-states) (5,344)
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- [Construction companies in the United States](https://www.tamtam.ai/l/construction-companies-united-states) (3,271)

## The same list elsewhere in United States

- [Information Services companies in New York State](https://www.tamtam.ai/l/information-services-companies-new-york-state) (41)
- [Information Services companies in New York](https://www.tamtam.ai/l/information-services-companies-new-york) (34)

## The same list elsewhere

- [Information Services companies in the world](https://www.tamtam.ai/l/information-services-companies-in-the-world) (753)
- [Information Services companies in North America](https://www.tamtam.ai/l/information-services-companies-in-north-america) (190)

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Source: https://www.tamtam.ai/l/information-services-companies-united-states