| # | Company | Employees |
|---|---|---|
| 1 | 47,247 | |
| 2 |
Electronic Data Systemsdxc.com
A global company founded in 1962 offering electronic data processing management personnel and computer hardware, focusing on large corporations and government contracts |
3,809 |
| 3 |
DST Systemsssctech.com
A global fintech company offering specialized software solutions and services for insurance, asset management, and other financial industries, with a focus on operational excellence |
3,116 |
| 4 |
Rizingrizing.com
A global SAP partner offering strategy, implementation, and support for SAP HCM, EAM, and Retail/Fashion industries, driving business transformation with industry expertise |
989 |
| 5 |
MResultmresult.com
A leading data & analytics intelligence technology solutions provider enabling companies to harness insights for competitive advantage through AI and real-time analytics |
937 |
| 6 | 837 | |
| 7 |
SDG Corporationsdgc.com
A global provider of technology and consulting services specializing in cybersecurity, identity, and risk management solutions for enterprises worldwide |
754 |
| 8 |
VLink Incvlinkinfo.com
Global software engineering partner providing AI-powered solutions, custom product engineering, cloud modernization, and technical talent through onshore and offshore delivery models for enterprises. |
623 |
| 9 |
EverestDX Inceverestdx.com
A digital platform services company specializing in orchestration, intelligent operations, and AI-powered analytics for enterprise IT to enable seamless digital transformation |
280 |
| 10 |
Offshorly | Software Teams, Websites & Prototypes, UI/UXoffshorly.com
A digital agency specializing in web, mobile apps, and software development Offers dedicated teams, project work, and transparent, cost-effective services with offshore savings |
55 |
| 11 |
Connecticut Computer Service, Inc. - CTCompctcomp.com
IT solutions provider since 1983, specializing in tailored technology services such as cloud services, analytics, network support, security, and managed services to help businesses thrive |
49 |
| 12 |
9to9 Software Solutions LLC9to9soft.com
Global IT Services and Product Development firm focused on delivering flexible solutions for complex business technology, driving success through IT expertise and business process improvements |
46 |
| 13 |
The TNS Group, an Omega Systems companythetnsgroup.com
A provider of Managed Security, Cloud Solutions, Business Continuity, and IT Consulting that helps businesses enhance profitability and efficiency through innovative technology solutions |
43 |
| 14 |
Sintesys North America - ServiceNow and NearShore Specialistssintesys.com
A North American company specializing in IT digital acceleration, offering IT staffing, business process optimization, and technology talent placement for enhanced end-user experience |
31 |
| 15 |
Beacon Data, Inc.beacondata.com
Expert data services company specializing in digital transformation, modern data warehouse architecture, dynamic reporting, BI dashboards, clean data, and advanced analytics for private equity portfolio companies |
27 |
| 16 |
Apple Consulting Group Incappleconsultinggroup.com
Innovative consulting firm specializing in new technology, cloud solutions, digital transformation, and business systems improvement across various sectors |
22 |
| 17 |
Keyseries, LLCkeyseries.us
An IT solution and digital technology provider focused on building innovative software and delivering cost-effective technology solutions quickly and flexibly |
21 |
| 18 |
U.S. Computer Connectionuscomputer.com
A leading provider of Managed IT Services since 1987, specializing in cyber security, disaster recovery, data backup, hardware support, and vendor management |
13 |
| 19 |
Canaan Technologycanaantechnology.com
Provider of installation, repair, and service for various technology systems to small businesses and residential clients with a focus on quality and customer satisfaction |
11 |
| 20 |
Global Finesseglobalfinesse.com
Specialist consultancy providing investment and risk management systems for global banks, insurance companies, and asset management firms in the financial services industry |
9 |
| 21 |
Aabasoft USAaabasoftusa.com
IT services and consulting firm offering solutions in ML/AI, RPA, Web/Mobile apps, Big Data, Cloud Computing, Digital Marketing, Enterprise Automation, and IT staffing support |
6 |
| 22 |
Dauntless Solutionsdauntless.solutions
A technology consultancy specializing in developing custom online software for entrepreneurs to work smarter and create unique platforms for end-users |
4 |
| 23 |
Alius Groupalius-group.com
Global financial services provider offering management, technology, and implementation services to solve complex challenges with innovative technology and regulatory expertise |
3 |
| 24 |
DevCo "Coding the Future"
A leading technology firm dedicated to innovation, creating robust software solutions, implementing AI, and fostering a collaborative culture for groundbreaking projects |
2 |
| 25 |
Sprise App
This company specializes in digital business transformation services, including strategy consultation, digital operations, customer experience enhancement, and data analytics and insights |
2 |
| 26 |
McMed CPRmcmedcpr.com
Provider of managed services, cloud solutions, virtual CTO services, and digital transformation Specializing in white label backup, security camera systems, and project management |
2 |
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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 Oct 24, 2026.
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- Financial services firms in Connecticut 132
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- Critical infrastructure operators in Connecticut 61
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- Manufacturers in Connecticut 49
- Retail chains in Connecticut 48
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- Education providers in Connecticut 44
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- Aerospace and defence companies in Connecticut 39
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The same list elsewhere in United States
- IT services companies in the United States 3,295
- IT services companies in Texas 464
- IT services companies in California 428
- IT services companies in New York State 275
- IT services companies in Virginia 253
- IT services companies in New Jersey 238
- IT services companies in Florida 183
- IT services companies in Illinois 166
- IT services companies in Georgia 143
- IT services companies in Massachusetts 93
- IT services companies in Maryland 90
- IT services companies in Pennsylvania 88
- IT services companies in Washington State 80
- IT services companies in Michigan 72
- IT services companies in Ohio 58
- IT services companies in Alabama 53
- IT services companies in New York 201
- IT services companies in Houston 82
- IT services companies in Chicago 68
- IT services companies in Austin 55
- IT services companies in Dallas 55
- IT services companies in Irving 55
- IT services companies in Miami 53
- IT services companies in San Jose 53