| # | Company | Employees |
|---|---|---|
| 1 |
TEKsystemsteksystems.com
Global solutions provider specializing in accelerating business transformation through resolving technology, business, and talent challenges for Fortune 500 organizations |
28,131 |
| 2 |
Infinite Computer Solutionsinfinite.com
Global provider of technology modernization, digital engineering, and AI-driven IT services delivering tailored solutions across multiple industries worldwide. |
14,901 |
| 3 |
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 |
| 4 |
Prometricprometric.com
Global provider of secure test development and delivery solutions supporting test-takers worldwide to advance their careers through accessible testing services |
2,467 |
| 5 |
Health Primehpiinc.com
Physician-owned company providing practice management solutions to help physicians focus on patients by minimizing paperwork and embracing evolving healthcare technology |
2,415 |
| 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 |
TEKsystems Global Services in Indiateksystems.com
Accelerating business transformation through expertise in technology, business, and talent challenges for a global clientele of Fortune 500 companies |
1,523 |
| 8 |
ViPSclearavenue.com
clearAvenue is a company that specializes in providing innovative technology solutions and services to help businesses streamline their operations and achieve success |
1,461 |
| 9 | 1,147 | |
| 10 |
Infosys Public Servicesinfosyspublicservices.com
Leader in business consulting, technology solutions, and digital services for public sector organizations in the US and Canada Specializes in digital transformation through experience, technology, innovation, and delivery excellence |
1,125 |
| 11 |
GXSopentext.com
Global integration services provider connecting 550,000+ companies in electronic transactions, specializing in B2B integration services for retailers, manufacturers, and banks |
1,019 |
| 12 |
The MIL Corporationmilcorp.com
A provider of cyber, engineering, financial, and information technology services to the federal government, emphasizing excellence, long-term relationships, and proven client retention |
951 |
| 13 |
CareMetx, LLCcaremetx.com
providing high-touch support and digital benefit investigation to accelerate patient initiation and adherence for specialty therapies |
845 |
| 14 |
Vision Technologiesvisiontechnologies.com
National systems integrator offering design, installation, and support for various technology solutions including Distributed Antenna Systems, security, data center services, and more |
835 |
| 15 |
Infojini Incinfojiniconsulting.com
Delivers innovative IT services and solutions, empowering startups and enterprises through software engineering, cloud, data, and cybersecurity expertise. |
786 |
| 16 |
Voyatekvoyatek.com
Provides tailored technology solutions for public sector agencies and higher education, focusing on tax, health, justice, and safety improvements. |
775 |
| 17 |
Abacus Technology Corporationabacustech.com
Delivering innovative solutions for technology challenges, Abacus Technology Corporation offers professional support services in IT, engineering analysis, and enterprise management for increased client productivity |
694 |
| 18 |
CriticalRiver Inc.criticalriver.com
Provides comprehensive technology consulting, implementation, and managed services, leveraging digital transformation, cloud, and intelligent automation solutions for various industries to enhance operational efficiencies. |
668 |
| 19 |
Planned Systems Internationalplan-sys.com
Providing government customers with innovative IT solutions including cybersecurity, cloud migration, systems engineering, augmented reality, and DevSecOps to enhance security and efficiency. |
650 |
| 20 |
Peak Technologies, Inc.peaktech.com
Peak Technologies provides enterprise mobility solutions and services to improve staff productivity, enhance customer experience, and optimize mobile technology investments across various industries |
649 |
| 21 |
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 |
| 22 |
SCCIteamscci.com
Provider of systems engineering, information assurance, software engineering, logistics, and training services for complex, software intensive military systems for DoD clients |
562 |
| 23 |
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 |
| 24 |
Tential Solutionstential.com
Trusted technology and transformation partner offering solutions in data, applications, AI, customer engagement, and talent to help organizations modernize and stay competitive #changeleaders |
515 |
| 25 |
Resource Management Concepts, Inc.rmcweb.com
A small business providing management and technology solutions to US government agencies with a focus on employee development and client satisfaction |
508 |
| 26 |
RDArdadigital.com
A digital consultancy working with innovative brands to create exceptional digital experiences, grow businesses, and deliver results with a focus on employee and customer satisfaction |
481 |
| 27 |
Edgewater Federal Solutions, Inc.edgewaterit.com
A trusted provider of top-tier IT consulting services for government clients, offering expertise in program/project management, system/network operations, and cybersecurity |
460 |
| 28 |
FEI Systemsfeisystems.com
A leading IT organization specializing in healthcare solutions for federal, state, and local governments, with expertise in behavioral health data systems and software development |
455 |
| 29 |
Intersoft Data Labsintsof.com
Providing innovative software development, product engineering, and infrastructure services across multiple industries with a focus on quality and accelerated delivery. |
451 |
| 30 |
Sabre Systems, LLCsabresystems.com
A quality-driven company providing innovative solutions in Cyber, C4ISR, Digital Transformation, and Business Intelligence to ensure national defense and overcome mission challenges |
440 |
| 31 |
CTIwebcti.com
Innovative technology solutions provider specializing in cybersecurity, compliance, and disaster recovery for global customers, with full-service IT consulting capabilities |
390 |
| 32 |
Soft Suave Technologiessoftsuave.com
Providing IT outsourcing, staffing, software development, and low-code/no-code solutions to SMBs across multiple countries with quality and cost-effectiveness. |
377 |
| 33 |
Skyline Technology Solutionsskylinenet.net
A full-service IT integrator and enterprise solution provider serving transportation, education, and public safety sectors for a more resilient society |
374 |
| 34 |
RELI Group, Inc.religroupinc.com
The company is dedicated to enhancing the well-being of the American citizens by supporting various federal government programs |
365 |
| 35 |
PrimeSoft Solutions, Inc.primesoft.net
IT services firm specializing in product development, offering services in cloud, DevOps, QA, and consulting to clients in various industries for strategic cost advantage |
345 |
| 36 |
FGS, LLCfgs-llc.com
Provider of intelligence analysis, information systems, and security engineering services for Department of Defense and Intelligence Community organizations, with ISO certification |
344 |
| 37 |
Instinctoolsinstinctools.com
A global software product development and consulting company with diverse expertise, delivering innovative technological solutions for businesses worldwide |
338 |
| 38 |
IBSSibsscorp.com
Transformational consulting services in cybersecurity, IT, environmental science, and professional management Emphasis on employee growth, community engagement, and quality results |
334 |
| 39 |
CyberX Info Systemcyberxinfosystem.info
Specializing in customer-centric mobile app development, we create custom solutions that solve real problems and drive engagement while building long-term relationships for success |
331 |
| 40 |
GIAC Certificationsgiac.org
Offers over 30 information security certifications, validating hands-on skills for professionals, practitioners, and developers across offensive, defensive, management, audit, forensics, and software security. |
318 |
| 41 | 317 | |
| 42 |
Sparksoft Corporationsparksoftcorp.com
provides innovative software products and technology solutions to help clients achieve business objectives with significant cost savings |
316 |
| 43 |
eSimplicityesimplicity.com
Digital services and telecommunications company offering Healthcare IT, Cybersecurity, and Telecommunications solutions to improve healthcare, national security, and defense |
310 |
| 44 |
Genesegenesesolutions.co
A mission-driven consulting firm focused on transforming great ideas into successful solutions through servant-leadership, empathy, and client relationships |
290 |
| 45 |
DSFederaldsfederal.com
A woman-owned small business specialized in data science, data services, and digital solutions to support research efforts in health and biodefense |
262 |
| 46 |
Global Science & Technology, Incgst.com
Specialized workforce providing scientific and technical expertise and support to federal R&D laboratories, with a focus on systems interoperability and open standards |
255 |
| 47 | 255 | |
| 48 | 240 | |
| 49 |
DigiFlight, Inc.digiflight.com
A veteran/minority-owned small business specializing in acquisition management and technology solutions for Government and commercial clients |
236 |
| 50 |
MORI Associatesmoriassociates.com
A leading provider of science, technology, and engineering solutions for public and private sector clients, specializing in IT services and engineering |
229 |
| 51 |
Digital Marketing Companydigitalmarketingco.org
A Maryland-based agency specializing in web design, SEO, and internet marketing, creating custom-tailored websites and promoting businesses online for real results |
220 |
| 52 |
Hendall Inc.hendall.com
Hendall provides best-value solutions for civilian agencies and defense communities, specializing in instructional design, IT solutions, and professional services support |
219 |
| 53 |
Movilitas, A Company of the Engineering Groupmovilitas.com
Leader in technology solutions for smart supply chain & manufacturing ecosystems, specializing in SAP digital transformation, compliance, track & trace, asset management, and consulting services globally |
199 |
| 54 |
PSI Pax, Inc.psipax.com
A women-owned small business providing agile program management, software engineering, data analytics, cybersecurity, IT services, and supply chain management |
187 |
| 55 |
Software Productivity Strategists, Inc. (SPS)spsnet.com
Enterprise innovator offering end-to-end IT solutions including AI development, cybersecurity, cloud services, and training Emphasis on integration and productivity tools |
185 |
| 56 |
Digicon Corporationdigicon.com
A leading IT service provider offering innovative solutions for government agencies, workforce organizations, and commercial enterprises, including a powerful cloud job application system |
183 |
| 57 |
National Cyber Leaguenationalcyberleague.org
The company organizes a cybersecurity competition for high school and college students to test their skills against real-world challenges |
183 |
| 58 |
DALY Computerslinktr.ee
Industry leader in IT services for state/local governments and education in the Mid-Atlantic region, providing innovative technology solutions for over 30 years |
183 |
| 59 |
CANDA Solutionscandasolutions.com
Leading provider of risk management software and services for National Security enterprises, focusing on government security compliance Offers integrated risk management suite |
183 |
| 60 |
Vibrintvibrint.com
Vibrint enhances national security intelligence gathering through innovative technology, high-performance computing, and mission resilience, optimizing data analysis for critical decisions |
176 |
| 61 |
CyberCore Technologiescybercoretech.com
A global technology company specializing in supporting government organizations and commercial clients in implementing technology projects and providing mission critical solutions |
176 |
| 62 |
American Electronics, Inc. (Amelex)amelexinc.com
Amelex is a woman-owned small business specializing in engineering, program management, information technology, research and development for defense and commercial clients |
175 |
| 63 |
Freedom Technology Solutions Group, LLCgoftsg.com
A creative and innovative team in the technology industry providing flexible and long-lasting solutions for clients in the DC/Baltimore area |
174 |
| 64 |
Sailotechsailotech.com
Global IT company delivering digital transformation, automation, AI, IoT, and enterprise application solutions to enhance business profitability and sustainability. |
171 |
| 65 |
Alliance Technology Groupalliance-it.com
A North American Systems Integrator & IT Solutions company specializing in infrastructure, security, and cloud solutions for public and private sectors since 1997 |
170 |
| 66 |
Cybrarycybrary.it
Cybrary offers a cybersecurity professional development platform with top industry experts, equipping IT and security professionals with knowledge and skills |
168 |
| 67 |
RPI Consultantsrpic.com
Specializing in ERP implementation and optimization, we provide expert solutions in technology integration, process redesign, and shared service operations for various functions |
164 |
| 68 |
Information Systems Solutions, Inc.issits.com
Innovative IT services provider for DoD and federal agencies, offering systems integration, network engineering, software development, information assurance, and project management support |
163 |
| 69 |
JIVA InfoTech Incjivainfotech.com
IT service company specializing in software development for various industries like education, healthcare, and media; offering a range of services from application development to consulting |
161 |
| 70 |
Victory Square Partnersvictorysquarepartners.com
The company offers engineering services to tech businesses in the DC, Philadelphia, and NYC areas to support their growth |
160 |
| 71 |
V-Empower Inc.v-empower.com
A technology company founded in 2000, specializing in product development and services, with a focus on building innovative applications and promoting social responsibility |
157 |
| 72 |
Data Networksdatanetworks.com
A leading IT solution provider for over 40 years, specializing in client computing, data center, networking, security, cloud services, and managed IT services |
155 |
| 73 |
Serigor Incserigor.com
Serigor offers IT Services and staffing to Government and Commercial clients, with expertise in IT solutions, Government Solutions, and Staffing Solutions |
153 |
| 74 |
NOVA-Dinรฉddc-dine.com
NOVA offers technology solutions for defense and intelligence missions, prioritizing client objectives with superior support, deep-rooted relationships, and Navajo innovation |
153 |
| 75 |
Sirius Federalcdwg.com
The company offers secure technology solutions and services to support critical infrastructure and help customers achieve mission success |
152 |
| 76 |
A&T Systems, Inc.ats.com
Provider specializing in mission critical IT and telecom infrastructure solutions for government and commercial clients, with expertise in data center, cloud computing, and telecommunications services |
152 |
| 77 |
OSS, Inc.ossjobs.com
IT support company delivering complete services to enhance clients' IT infrastructure, specializing in systems integration, technical architecture, software services, programming, and consulting for commercial and government clients globally |
134 |
| 78 |
FedData Technology Solutionsfeddata.com
The company specializes in providing IT architecture services to government and private sector clients, optimizing infrastructure and enhancing network security |
77 |
| 79 |
Klik Solutions โ Managed IT, Cybersecurity, Data&Tech Solutions Partner | Baltimore ยท Austin ยท 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 |
| 80 |
Racknerrackner.com
Innovative company specializing in DevSecOps, AI, Edge Computing, Cloud-Native development, with expertise in Kubernetes and WebAssembly Serving startups and government agencies |
57 |
| 81 |
Occams Groupoccamsgroup.com
Innovative tech company specializing in staying ahead of emerging trends, providing contingent staff, tailored solutions, and Generative AI use cases |
53 |
| 82 |
Immersive Concepts, LLCimmersiveconcepts.com
A small business providing strategic technology solutions for federal, state, local, and commercial customers with a focus on customer service and certifications in various industries |
52 |
| 83 |
SRC Technologies Inc.src.tech
A leading provider of IT consultation services specializing in secure computing for government agencies and corporations, offering end-to-end solutions in various technologies |
52 |
| 84 |
Pushwooshpushwoosh.com
A mobile customer engagement platform trusted by 80,000 clients, offering push notifications, in-app messages, emails, and cross-channel campaigns to drive conversions |
51 |
| 85 |
Optivor Technologies, LLCoptivor.com
A global leader in enterprise communications solutions and IT services, providing Unified Communications, Contact Centers, Data solutions, Video Teleconferencing, and IT solutions |
47 |
| 86 |
Maricom Systemsmaricom.com
An IT technology solutions firm specializing in Data Management, Software Engineering, Business Intelligence, and Contact Center Solutions for Government, Healthcare, and Commercial sectors |
42 |
| 87 |
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 |
| 88 |
e-Managemente-mcinc.com
A provider of professional IT services and cybersecurity solutions, offering innovative software for cybersecurity assurance and Enterprise Risk Management to government agencies and commercial companies |
39 |
| 89 |
Stellar IT Solutions, Inc.stellarit.com
Providing technology solutions, software development, IT talent management, and consulting services with multiple US and international offices. |
39 |
| 90 |
Audley Consulting Groupaudleyconsultinggroup.com
A minority-owned small business specializing in Customer Experience, Digital Transformation, Agile Development, Cloud Services, and DevSecOps through comprehensive, tailored solutions |
33 |
| 91 |
InfoStructures, Inc.infostructures.com
Utilizing technology to enhance work environments, this company offers IT solutions and services to government and industry sectors |
31 |
| 92 |
Mount Everest Consultingmtevc.com
This company helps organizations with digital transformation by providing end-to-end services, specializing in AWS, Azure, Google Cloud Platform, and microservices consulting |
30 |
| 93 |
XL Solutionsxlsolutionsgroup.com
XL Solutions is a digital solutions provider that helps organizations optimize their operations with cutting-edge apps, cloud services, data analytics, and technology solutions |
29 |
| 94 |
Innosoft Corporationinnosoft.com
An innovative IT services company providing solutions in Data Management, Software Development, Cloud Engineering, and IT Management for government and commercial clients |
28 |
| 95 |
LARES IT SOLUTIONS INClaresit.com
A trusted IT service provider offering staff augmentation, IT staffing, consulting, application development, advisory services, ERP & legacy modernization, infrastructure management, and digital transformation solutions globally |
28 |
| 96 |
ExpediteInfoTech, Inc.expediteinfotech.com
A certified tech company in Maryland offering services in Agile Software Development, Strategic Planning, Cloud Solutions, Project Management, and more |
27 |
| 97 |
Systems Integration & Development, Inc.sidonline.com
Provider of state-of-the-art technology solutions to public and private sector clients, focusing on maximizing ROI and mission performance through quality service |
27 |
| 98 |
OMNI Technologiesteamomni.com
A premier Enterprise IT service provider specializing in delivering cutting-edge technologies and business processes to government and commercial clients |
27 |
| 99 |
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 |
| 100 |
Advanced Concepts Incaci-hq.com
This company provides superior IT solutions and services in areas such as infrastructure engineering, systems integration, software development, and information assurance |
26 |
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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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- Critical infrastructure operators in Maryland 67
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- Construction companies in Maryland 63
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- Financial services firms in Maryland 57
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The same list elsewhere in United States
- IT Services and IT Consulting companies in the United States 5,237
- IT Services and IT Consulting companies in California 730
- IT Services and IT Consulting companies in Texas 665
- IT Services and IT Consulting companies in New York State 451
- IT Services and IT Consulting companies in Virginia 398
- IT Services and IT Consulting companies in New Jersey 366
- IT Services and IT Consulting companies in Florida 296
- IT Services and IT Consulting companies in Georgia 233
- IT Services and IT Consulting companies in Illinois 230
- IT Services and IT Consulting companies in Massachusetts 147
- IT Services and IT Consulting companies in Pennsylvania 134
- IT Services and IT Consulting companies in Washington State 118
- IT Services and IT Consulting companies in Ohio 109
- IT Services and IT Consulting companies in Michigan 102
- IT Services and IT Consulting companies in North Carolina 93
- IT Services and IT Consulting companies in Alabama 83
- IT Services and IT Consulting companies in Delaware 81
- IT Services and IT Consulting companies in New York 304
- IT Services and IT Consulting companies in Houston 112
- IT Services and IT Consulting companies in Atlanta 100
- IT Services and IT Consulting companies in San Francisco 96
- IT Services and IT Consulting companies in Austin 91
- IT Services and IT Consulting companies in Chicago 86
- IT Services and IT Consulting companies in Irving 77