| # | Company | Employees |
|---|---|---|
| 1 |
Hugheshughes.com
Provides broadband equipment, services, and network operations to millions of consumers, businesses, and governments worldwide via satellite and multi-transport technologies. |
3,209 |
| 2 |
GURUguruconsult.com
An established IT managed service provider offering infrastructure support, data architecture, cloud services, and hybrid solutions with a strong focus on quality, integrity, and customer service |
3,038 |
| 3 |
Crisis24crisis24.com
Integrated risk management, crisis response, consulting, and global protective solutions firm, providing specialized services, security, and technology powered by AI worldwide |
2,363 |
| 4 |
Tenabletenable.com
Exposes and closes cybersecurity gaps, unifies security visibility, insight, and action across the attack surface for organizations globally. |
2,361 |
| 5 |
Thales Defense & Security, Inc.thalesdsi.com
Global provider of innovative solutions for defense, federal, and commercial markets including communication systems, sonar systems, data protection, and technology integration for various domains |
2,013 |
| 6 |
SMXsmxtech.com
A US based IT and engineering solutions provider specializing in Cloud Solutions, Cyber Security, Systems Integration, Data Analytics, and Mission-Focused Engineering |
1,934 |
| 7 |
SANS Institutesans.org
Most trusted source cybersecurity training and certification, develops information security research documents, operates Internet's early warning system. |
1,777 |
| 8 |
Hughes Systique Corporation (HSC)hsc.com
A multinational provider of digital solutions and services, specializing in software development, with expertise in Networking, AI & ML, Retail, Automotive, IoT, Blockchain, and Security |
1,547 |
| 9 |
Huntresshuntress.com
Provides a fully managed security platform, combining endpoint detection, identity protection, SIEM, and security training for mid-market businesses and MSPs. |
939 |
| 10 |
ZeroFoxzerofox.com
Discover, validate, and disrupt external cyber threats using a unified platform combining threat intelligence, brand protection, and attack surface insights. |
862 |
| 11 |
Dragos, Inc.dragos.com
Provides most effective OT cybersecurity technology for industrial and critical infrastructure, safeguarding civilization with platform visibility, monitoring, and threat detection. |
665 |
| 12 |
TISTA Science and Technology Corporationtistatech.com
IT and professional services provider for Federal, State, and commercial clients, specializing in cyber security, software development, engineering support, and IT operations |
581 |
| 13 |
Dataprisedataprise.com
A technology consulting company helping over 5,000 organizations in the US optimize their technology, with a focus on excellent customer support |
556 |
| 14 |
Sonatypesonatype.com
Provides intelligence and products helping organizations manage open source components, accelerating innovation, mitigating security vulnerabilities, and licensing risks. |
552 |
| 15 |
Clarityclarityinnovates.com
A technology company focused on developing force-enhancing software for government, promoting DevSecOps, Agile methodologies, and fostering a culture of creativity and growth |
505 |
| 16 |
Praxis Engineeringgdit.com
A consulting and solutions firm specializing in software and system engineering technologies to design high-value solutions for mission critical needs |
220 |
| 17 |
Klik Solutions – Managed IT, Cybersecurity, Data&Tech Solutions Partner | Baltimore · Austin · Miamiklik.solutions
This IT company offers a full range of services including data backup, technology support, Cloud, Security, Help Desk, and managed IT services |
62 |
| 18 | 58 | |
| 19 |
Edaptive Systems, LLC (acquired by ManTech)mantech.com
Provider of program management, software engineering, business intelligence, and information technology solutions to public and private sector clients |
39 |
| 20 |
OMNI Technologiesteamomni.com
A premier Enterprise IT service provider specializing in delivering cutting-edge technologies and business processes to government and commercial clients |
27 |
| 21 |
Advantage Industries, Inc.getadvantage.com
It specializes in providing managed security services, offering tailored technology solutions to enhance business operations and address complex needs. |
27 |
| 22 | 23 | |
| 23 |
Netorian LLCnetorian.com
Specializing in IT, engineering, and business solutions, with a focus on cybersecurity, networking, and communications for public and private sectors globally |
23 |
| 24 |
Victory Global Solutions, Inc.victorygs.com
The company specializes in providing IT solutions, consulting services, and integrating cybersecurity to help clients overcome challenges and meet regulations |
15 |
| 25 | 9 | |
| 26 |
356 Solutions, LLC356solutions.com
Innovative IT cyber security company offering solutions, products, and services to address cybersecurity challenges for businesses and organizations |
6 |
| 27 |
Captivator Technologiescaptivatortechnologies.com
A growing digital solutions provider specializing in cybersecurity, SaaS products, ICT systems, and digital literacy training programs for businesses and individuals |
5 |
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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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The same list elsewhere in United States
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