| # | Company | Employees |
|---|---|---|
| 1 |
Accenture Federal Servicesaccenture.com
The company brings advanced R&D, latest technologies, and human-centered design to the federal government to create lasting value and drive positive change |
9,719 |
| 2 |
CEB, now Gartnergartner.com
Providing research, advisory services, and technology solutions to help organizations make informed decisions and achieve their strategic priorities for future success |
1,934 |
| 3 |
Tria Federal (Tria)triafed.com
Provides digital transformation solutions and advisory services to federal health and public safety agencies, addressing capability gaps for faster, smarter operations. |
1,412 |
| 4 |
SETsetcorp.com
A small business founded by DARPA scientists in 2002, specializing in creating and commercializing innovative "smart" information technologies for defense and intelligence clients |
1,240 |
| 5 |
Vangent, Inc.vangent.com
A global provider of information management and strategic business process services for Federal government, commercial, education, and healthcare organizations Offices in US, UK, and Canada |
911 |
| 6 |
Surescriptssurescripts.com
A company that simplifies sharing of health intelligence among healthcare organizations, ensuring secure and timely delivery of information for improved patient care |
710 |
| 7 |
Core4cecore4ce.com
Mission-oriented company serving national security community by building, modernizing, and defending digital infrastructure with expertise in cyber operations, modernization, engineering, and analysis |
599 |
| 8 |
Softrams, a Tria Federal Companytriafed.com
Innovative technology solutions for federal industries, specializing in Salesforce, Artificial Intelligence, Cybersecurity, Cloud, and Data services to drive positive transformation |
385 |
| 9 |
Innovative Defense Technologies (IDT)idtus.com
Automated software testing, data analysis, and cybersecurity solutions for DOD's mission-critical systems, enabling faster, more affordable software capabilities deployment |
381 |
| 10 |
Capitol Bridgecapitolbridge.com
A top service provider for State and Federal government clients, specializing in meeting their needs and requirements effectively and efficiently |
365 |
| 11 |
Millenniummillgroupinc.com
A cybersecurity company with over 400 experts specializing in Red Team Operations, Defensive Cyber Operations, Software Engineering, and Technical Engineering |
346 |
| 12 |
cBEYONData + SMXcbeyondata.com
Specializing in business process enhancement, cloud migration, BI, data management, analytics, project management, and financial reporting solutions for mission-driven agencies and organizations |
314 |
| 13 |
Redhorse Corporationredhorsecorp.com
The company specializes in assisting government entities with data and technology solutions through consulting, digital transformation, and artificial intelligence in various sectors |
314 |
| 14 | 288 | |
| 15 |
Figure Eight Federalf8federal.com
A company specializing in training various data types to create high-quality AI for Federal initiatives in defense, health, finance, agriculture, and science |
242 |
| 16 |
DRT Strategiesdrtstrategies.com
A technology innovator specializing in digital transformation for federal agencies and commercial clients, offering expertise in ServiceNowโข, AWS, UiPath, and more |
237 |
| 17 | 205 | |
| 18 |
MANTECH Digital Modernizationmantech.com
A leading Federal Digital Transformation consultancy empowering end users, optimizing operations, and enhancing decision-making through advanced analytics and cloud platforms |
183 |
| 19 |
CUBE84cube84.com
A full-service Salesforce consulting company offering implementation, administration, development, integration, and more services to help businesses maximize their CRM investment |
182 |
| 20 |
QWERTYqwerty.global
The company creates custom web/mobile solutions for innovative brands, offering software development, UX/UI design, prototyping, digital transformation, and remote team members |
167 |
| 21 |
Tantus Technologies, Inc.tantustech.com
IT consulting firm supporting federal agencies with PMO, Health IT, Financial Management, and technology solutions to improve operations. |
163 |
| 22 |
DTSconsultdts.com
A Service-Disabled Veteran Owned Small Business offering cyber, consulting, and management services to public sector and commercial clients for over a decade |
156 |
| 23 |
AFA CyberPatriotuscyberpatriot.org
CyberPatriot encourages K-12 students to pursue cybersecurity and STEM careers through competitions, camps, and community service programs |
156 |
| 24 |
iTech AGitechag.com
A technology consulting firm specializing in modernizing systems and processes to help organizations achieve better, faster, and more predictable results |
147 |
| 25 | 146 | |
| 26 |
Tripoint Solutionstripointsolutions.com
Premier business and IT consulting firm offering unique solutions with state-of-the-art technologies, dedicated to customer satisfaction, integrity, and excellence |
104 |
| 27 |
Competitive Innovations, LLCcillc.com
Provider of mission critical security and citizen service solutions for government and industry through innovative use of emerging technologies |
39 |
| 28 |
LightFeatherlightfeather.io
A forward-thinking startup specializing in digital services, empowering individuals, driving business value, and innovating to transform business processes |
38 |
| 29 |
Eagle Technologies, Inc.eagletechva.com
A small business specializing in complex solutions for government and large corporate clients nationwide, providing enterprise infrastructure, cloud, application development, and cybersecurity services |
29 |
| 30 |
Avilambavilamb.com
An IT consulting company specializing in customer engagement, cloud-based solutions, enterprise integration, and data orchestration for government and commercial clients |
15 |
| 31 |
Ethos Technologiesethostec.com
Information technology services company specializing in system development, enterprise migration, cloud computing, management consulting, and business analysis for public and commercial clients |
13 |
| 32 |
ByteCubedagiledefense.com
An advanced technology and creative design company using data science to develop innovative solutions for clients in various sectors |
12 |
| 33 |
Aurenav LLCaurenav.com
International company providing Enterprise Architecture, ICT Security, Business Services, and Web Services across 65+ countries Diverse IT solutions and services |
7 |
| 34 |
DevInfoExpress LLCdevinfoexpress.com
An IT service and consulting company specializing in contracting IT employees, providing training, and streamlining business operations for a better customer experience |
7 |
| 35 |
Skyrope, LLCskyrope.com
Transforming businesses using technology by managing and enhancing strategic functions like IT, operations, marketing, and sales, focusing on simplicity, subscription services, and exceptional results |
6 |
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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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