| # | Company | Employees |
|---|---|---|
| 1 |
TCS
A full lifecycle IT professional services and software firm in Brownsburg, IN, offering tailored solutions and managed services for optimized technology investments |
21,901 |
| 2 |
Carelon Global Solutions Indiacarelonglobal.in
Healthcare solutions provider with global reach, specializing in digital tools for health plans, providers, and systems to increase efficiency and effectiveness |
15,035 |
| 3 |
Legato Health Technologiescarelonglobal.com
IT and business consulting healthcare solutions company specializing in digital tools for simplifying healthcare processes and transforming the industry through innovation and operational excellence |
4,240 |
| 4 |
Brooksourcebrooksource.com
Trusted provider of Engineering & Technology solutions for Fortune 500 organizations, emphasizing Experience-Driven Staffing, Professional Services, and Workforce Transformation |
2,497 |
| 5 |
Eight Eleven Groupeightelevengroup.com
Eight Eleven Group provides IT, engineering, healthcare, and business support services nationwide, focusing on creating great experiences for clients, consultants, and employees |
1,877 |
| 6 |
Tangoetangoe.com
Tangoe offers cutting-edge solutions for order, invoice, inventory, and expense management for various technologies like telecom, mobile, cloud, IoT, and 5G |
1,691 |
| 7 |
Qualusqualuscorp.com
Innovative power services firm specializing in grid modernization, resiliency, sustainability, and software solutions for utilities, commercial, industrial, and government clients |
1,668 |
| 8 |
BCforwardbcforward.com
Global talent community empowering job seekers worldwide to advance careers and help organizations achieve goals in various industries Headquarters in Indianapolis and Hyderabad |
1,662 |
| 9 |
Koch Enterpriseskochenterprises.com
A family-owned conglomerate with seven subsidiary businesses operating in manufacturing, distribution, construction, and IT sectors, focusing on team member development and community involvement |
1,136 |
| 10 |
ITIititech.biz
The company offers IT services, networking, security/surveillance, custom audio/video, web/graphic design, with a focus on long-lasting client relationships |
786 |
| 11 |
Bell Techlogix, Inc.linktr.ee
Leading IT managed services provider delivering digital workplace and infrastructure management solutions to enterprises and the public sector, driving cost reduction and improving customer responsiveness |
542 |
| 12 |
Core BTSnri-na.com
A full-service digital transformation consulting firm that helps clients solve challenges and achieve business outcomes through integrated solutions |
503 |
| 13 |
Theoristheoris.com
A strategic data management partner offering solutions for enterprise data analytics, integration, consulting, managed data services, app development, cloud initiatives, and talent acquisition |
126 |
| 14 |
Nexum, Inc.nexuminc.com
Provides comprehensive, customized IT security solutions, including hardware, software, engineering, managed services, support, and risk assessments for businesses. |
99 |
| 15 |
Sensory Technologies, a Diversified Companydiversifiedus.com
Global technology solutions provider acquired in 2020, enabling a digital future by connecting people, technology, and experiences to drive ROI and enhance operations |
81 |
| 16 |
MapleTronicsmapletronics.com
Full-service IT planning, managed services, and cybersecurity company empowering clients across industries with tailored solutions for business continuity and security |
74 |
| 17 |
Roeing IT Solutionsroeing.com
A technology solutions provider with 30+ years of experience, offering customized solutions to align with business goals and gain competitive advantage |
61 |
| 18 |
Axia Technology Partnersaxiatp.com
An IT services company offering managed services, unified communications, and custom software solutions with a consultative approach for operational excellence |
33 |
| 19 |
Perpetual Technologies, Inc.pti.net
Provider of quality data-centric consulting services, offering managed IT support from small startups to fortune 500 enterprises, focusing on excellence in service and employee dedication |
31 |
| 20 |
Apparatus Infrastructure Services, a Virtusa companyapparatus.net
A leading managed IT solutions provider offering expertise in cloud computing, enterprise consulting, and a range of technologies for increasing business value |
31 |
| 21 |
Pro IT Solutionspro-it-solutions.com
A leading technology solutions provider offering Managed IT Services, Audio/Video, Home Automation, and Security solutions for businesses and homes |
30 |
| 22 |
Vespa Group LLCvespa-group.com
An Indianapolis based technology consulting firm founded in 2014, specializing in providing value-driven solutions for public and private sector organizations |
21 |
| 23 |
Actium Consultingteamsoftinc.com
Management consulting firm specializing in technology and outsourcing services, offering strategic solutions and value to public and private sector clients through integrity and excellence |
18 |
| 24 |
Digital Upgradedigitalupgrade.com
This company helps businesses improve their digital presence, streamline logistics, and increase efficiency for growth and success in the community |
10 |
| 25 |
Continuudcontinuud.com
This company creates digital platforms for community health organizations to enhance patient retention and treatment adherence through innovative solutions |
8 |
| 26 |
Rook (acquired by Sophos)
Specializing in cybersecurity services to protect businesses from digital threats and secure sensitive data, ensuring a safe and secure online environment |
8 |
| 27 |
nimboIP LLCnimboip.com
A Managed Service Provider specializing in telecommunications, offering cloud and premise-based voice and IT solutions tailored to each customer's needs |
6 |
| 28 |
Snakeit Technologiessnakeittech.com
Providing IT solutions globally, specializing in software development, custom solutions, and offering skilled professionals in various fields including AI and BI |
4 |
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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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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
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- IT services companies in Chicago 68
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- IT services companies in Dallas 55
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- IT services companies in Miami 53
- IT services companies in San Jose 53