Maryland hosts a robust industry of network security companies focused on protecting data and systems from cyber threats. With risks continually evolving, these businesses are at the forefront of implementing innovative security measures. They offer a wide range of services—like threat intelligence, vulnerability assessments, and compliance solutions—aimed at safeguarding critical information across many sectors including healthcare, government, and finance. The increasing focus on privacy regulations and digital transformation projects signifies an upward trend in demand for cybersecurity solutions. Companies are increasingly leveraging advanced technologies such as AI and machine learning to enhance detection and response capabilities.

The companies featured in this list are primarily located in Maryland's technology hubs, with headquarter cities like Bethesda, Columbia, and Annapolis. Ranging in size from small startups with fewer than 50 employees to larger firms employing hundreds, these companies were founded between 1985 and 2016. Each specializes in specific areas of network security, offering services such as managed detection, incident response, and cybersecurity training to meet the complex needs of their clients. The emphasis on tailored solutions reflects the industry's trend toward customized security strategies.

Continue reading to discover the top network security companies in Maryland.

Top 21 Network Security Companies in Maryland

1. Fidelis Cybersecurity

• Website: fidelissecurity.com
• Ownership type: Private Equity
• Headquarters: Bethesda, Maryland, United States (USA)
• Latest funding: September 2022
• Founded year: 2002
• Headcount: 201-500
• LinkedIn: fideliscybersecurity

Fidelis Cybersecurity, based in Bethesda, Maryland, has been a player in the cybersecurity industry since its founding in 2002. The company specializes in advanced solutions for threat detection and response, offering a range of products that include network security, endpoint protection, and deception technology. Their services cater to various sectors, notably government and healthcare, where security is paramount. Fidelis operates on a subscription model, allowing organizations to enhance their security measures effectively. The company has established a reputation for its proactive cybersecurity solutions, claiming to detect post-breach attacks over nine times faster than its competitors. This capability is particularly crucial in an era where cyber threats are increasingly sophisticated and pervasive. With a workforce of around 177 employees, Fidelis continues to innovate and adapt to the evolving cybersecurity landscape, making it a relevant entity in the network security domain.

2. Sourcefire, part of Cisco

• Website: sourcefire.com
• Ownership type: Corporate
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: United States (USA) 84%, Iran 16%
• Latest funding: $2.7B, July 2013
• Founded year: 2001
• Headcount: 501-1000
• LinkedIn: sourcefire

Sourcefire, part of Cisco, is a cybersecurity firm based in Columbia, Maryland, founded in 2001. The company specializes in providing advanced security solutions designed to protect organizations from a variety of cyber threats. As part of Cisco, Sourcefire benefits from a robust infrastructure and a wide array of resources, allowing it to offer comprehensive security products that include firewalls, endpoint security, and cloud security solutions. Their approach emphasizes proactive threat detection and response, utilizing innovative technologies to safeguard networks and data. Sourcefire's integration into Cisco's ecosystem enhances its capabilities, enabling it to address the evolving challenges in cybersecurity effectively. The company operates on a subscription-based model, providing software as a service (SaaS) for its security solutions, which is increasingly favored in the industry.

3. Owl Cyber Defense

• Website: owlcyberdefense.com
• Ownership type: Private Equity
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: United States (USA) 96%, United Arab Emirates 3%, Other 2%
• Latest funding: Other (Debt), October 2024
• Founded year: 1999
• Headcount: 201-500
• LinkedIn: owlcyberdefense

Owl Cyber Defense, founded in 1999 and based in Columbia, Maryland, specializes in cybersecurity solutions that focus on cross-domain technologies and data diode systems. The company provides secure data transfer products and services primarily to government agencies, defense contractors, and critical infrastructure sectors. Their offerings include a range of products such as the Owl Talon™ data diode and various cross-domain solutions designed to facilitate secure information sharing in high-threat environments. Owl Cyber Defense also emphasizes the importance of technical support, training, and security assessments, ensuring that clients can effectively protect sensitive information. With a workforce of approximately 234 employees, the company has established itself as a trusted provider in the cybersecurity industry, particularly in areas requiring stringent security measures.

4. Aladdin

• Website: safenet-inc.com
• Ownership type: Corporate
• Headquarters: Belcamp, Maryland, United States (USA)
• Employee distribution: Russia 36%, United States (USA) 28%, Brazil 7%, Other 29%
• Latest funding: $890.0M, August 2014
• Founded year: 1985
• Headcount: 201-500
• LinkedIn: aladdin

Aladdin, now part of Thales, is a cybersecurity firm based in Belcamp, Maryland, with a history dating back to 1985. The company specializes in data protection, identity management, and software monetization, providing a comprehensive suite of solutions designed to help organizations secure sensitive information and meet regulatory standards. Aladdin's offerings include advanced encryption technologies, key management systems, and identity access management solutions, which are critical for businesses navigating the complexities of digital security. With a workforce of approximately 441 employees and a significant presence in various countries, including the United States and Russia, Aladdin has established itself as a key player in the cybersecurity industry. Their commitment to innovation and compliance ensures they remain relevant in a rapidly changing market.

5. Chiron Technology Services, Inc.

• Website: chirontech.com
• Ownership type: Private
• Headquarters: Columbia, Maryland, United States (USA)
• Founded year: 2004
• Headcount: 51-200
• LinkedIn: chiron-technology-services-inc-

Chiron Technology Services, Inc., founded in 2004 and based in Columbia, Maryland, is a veteran-owned cybersecurity firm dedicated to providing tailored cybersecurity solutions. The company serves a mix of public sector and commercial clients, focusing on areas such as cybersecurity training, information assurance, and systems engineering. Chiron's team consists of experienced engineers, analysts, and subject matter experts who leverage their extensive backgrounds to tackle complex cybersecurity challenges. Their services include evaluating network vulnerabilities, offering risk mitigation strategies, and developing customized training programs to enhance the skills of information operation professionals. Chiron's commitment to understanding the unique needs of each client allows them to deliver effective and relevant cybersecurity solutions.

6. TRGroup Inc

• Website: trgroup1.com
• Ownership type: Private
• Headquarters: Ocean, Maryland, United States (USA)
• Founded year: 2000
• Headcount: 11-50
• LinkedIn: trgroup-inc

TRGroup Inc, founded in 2000, is a private IT consulting and security services firm based in Ocean, Maryland. The company specializes in cybersecurity, network management, and project management solutions, catering to both commercial businesses and government entities. With a commitment to delivering first-class service, TRGroup focuses on creating innovative technology solutions tailored to the specific needs of its clients. Their service portfolio includes cybersecurity measures such as vulnerability assessments and penetration testing, network management, high-performance wireless solutions, and physical security services. Over the years, TRGroup has expanded its reach, providing services not only across the United States but also in Mexico, the Caribbean, and Central America. The firm is recognized as a certified Information Technology and Security Consulting firm by the U.S. Small Business Administration, which underscores its credibility in the industry.

7. SecuLore

• Website: seculore.com
• Ownership type: Corporate
• Headquarters: Odenton, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: June 2023
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: seculore-solutions

SecuLore, founded in 2016 and based in Odenton, Maryland, is a cybersecurity firm dedicated to safeguarding public safety and critical infrastructure. The company offers a variety of services, including vulnerability assessments, continuous monitoring, and incident response, tailored to meet the needs of government agencies, healthcare providers, and educational institutions. SecuLore has developed proprietary monitoring technology that allows for real-time analysis of network traffic, enhancing their ability to detect and respond to cyber threats. Their team comprises experts in cyber warfare and public safety technology, which positions them as knowledgeable advisors in the field. SecuLore has also been involved in shaping cybersecurity standards, contributing to initiatives with organizations like the FCC and DHS. They have received funding from the Department of Homeland Security and the Cybersecurity & Infrastructure Security Agency, underscoring their commitment to improving the cybersecurity posture of critical networks across the United States.

8. RedZone Technologies: IT and Infrastructure Security Services

• Website: redzonetech.net
• Ownership type: Private
• Headquarters: Annapolis, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2001
• Headcount: 11-50
• LinkedIn: redzone-technologies

RedZone Technologies is an IT service provider based in Annapolis, Maryland, specializing in cybersecurity solutions tailored for small to mid-sized enterprises. Established in 2001, the company has developed a robust portfolio of services that includes IT security assessments, managed IT services, and security-as-a-service offerings. RedZone is dedicated to helping organizations secure their digital environments against a variety of cyber threats. Their approach involves continuous innovation in response to the ever-changing landscape of cybersecurity, ensuring that their methodologies and solutions remain effective. The company has built a reputation for delivering reliable support and fostering long-term relationships with clients, which is evident in their work with notable organizations, including the NFL and various credit unions. RedZone's commitment to security and compliance, along with their proactive managed services, positions them as a significant player in the cybersecurity industry.

9. newpush

• Website: newpush.com
• Ownership type: Private
• Headquarters: Baltimore, Maryland, United States (USA)
• Employee distribution: Hungary 56%, United States (USA) 44%
• Founded year: 1999
• Headcount: 51-200
• LinkedIn: newpush

NewPush, founded in 1999 and based in Baltimore, Maryland, is a cybersecurity firm dedicated to helping businesses safeguard their digital assets. With a workforce of around 36 employees, the company operates primarily in the B2B sector, catering to organizations that require advanced security solutions. NewPush specializes in a variety of services, including Managed Detection & Response, Data Loss Prevention, and Security Awareness Training. Their offerings are designed to protect against cyber threats while ensuring compliance with security standards. The company has a notable presence in both the United States and Hungary, reflecting a strategic approach to global cybersecurity needs. NewPush's commitment to continuous improvement in security practices is evident in their innovative solutions, such as the Connective Platform, which integrates various security tools to enhance operational efficiency. Their focus on customer service and responsiveness has garnered positive feedback from clients, further solidifying their reputation in the cybersecurity industry.

10. FCN Inc.

• Website: fcnit.com
• Ownership type: Private
• Headquarters: Rockville, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1990
• Headcount: 51-200
• LinkedIn: fcn

FCN Inc., based in Rockville, Maryland, is a private IT solutions provider founded in 1990. The company has carved out a niche in enterprise networking and cybersecurity, offering a range of services that include collaboration, infrastructure modernization, data center management, cloud services, and artificial intelligence. FCN serves a mix of U.S. Federal agencies, state agencies, and commercial partners, helping them enhance their IT operations and security. With a workforce of around 228 employees, many of whom have military backgrounds, FCN leverages their expertise to deliver tailored solutions that meet the specific needs of their clients. Their cybersecurity services are particularly noteworthy, focusing on modern threats and employing strategies like Zero Trust to safeguard sensitive information. FCN's commitment to innovation and security positions them as a relevant player in the IT and cybersecurity industry.

11. CyberPoint International

• Website: cyberpoint.com
• Ownership type: Private
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2009
• Headcount: 51-200
• LinkedIn: cyberpoint-international

CyberPoint International, founded in 2009 and based in Columbia, Maryland, is a cybersecurity firm dedicated to safeguarding organizations from cyber threats. With a workforce of approximately 51-200 employees, the company specializes in a variety of services, including penetration testing, vulnerability research, and incident response. CyberPoint serves a mix of commercial and government clients, helping them secure their critical systems and infrastructure. The firm has developed several proprietary products, such as CATO, Scout, and DarkPoint, which enhance their service offerings and reflect their innovative approach to cybersecurity. Additionally, CyberPoint's Security Research Team focuses on vulnerability research, malware analysis, and threat intelligence, contributing valuable insights to the cybersecurity community. Their commitment to training and community engagement further underscores their role in advancing cybersecurity practices.

12. DataLink Interactive, Inc.

• Website: datalinktech.com
• Ownership type: Private
• Headquarters: Millersville, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1993
• Headcount: 11-50
• LinkedIn: datalink-interactive

DataLink Interactive, Inc., based in Millersville, Maryland, has been operational since 1993. This private company focuses on IT services, particularly in managed services, cloud solutions, and security compliance. They cater to a variety of clients, including businesses and organizations that require reliable IT support and cybersecurity measures. Their service portfolio includes proactive monitoring, data backup, and consulting services, which help clients navigate their technology needs effectively. DataLink also emphasizes compliance with industry regulations, offering services like security risk assessments and compliance gap analyses. Their commitment to security is evident in their specialized offerings for sectors such as healthcare and finance, where data protection is paramount. With a team of 17 employees, DataLink Interactive has established a reputation for personalized service and client satisfaction, serving clients across Maryland, Washington DC, Virginia, and Delaware.

13. Cyber Engineering Services, Inc. (CyberESI)

• Website: cyberesi.com
• Ownership type: Private
• Headquarters: Baltimore, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2010
• Headcount: 11-50
• LinkedIn: cyber-engineering-services

Cyber Engineering Services, Inc. (CyberESI), founded in 2010, is a cybersecurity service provider based in Baltimore, Maryland. The company specializes in managed detection and response, incident response, and consulting services, primarily targeting midsize enterprises. CyberESI's team consists of government-trained experts who leverage their extensive experience to deliver customized solutions that address intricate cybersecurity challenges. Their services include risk assessments, incident response planning, and vulnerability assessments, all designed to enhance clients' security postures. CyberESI is aligned with the NIST Cybersecurity Framework, ensuring that their practices meet industry standards. The company has not reported any funding, indicating a self-sustained operational model. CyberESI's focus on continuous security monitoring and incident response positions them as a relevant player in the cybersecurity industry.

14. SRC Technologies Inc.

• Website: src.tech
• Ownership type: Private
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2008
• Headcount: 51-200
• LinkedIn: src-technologies-inc.

SRC Technologies Inc., founded in 2008 and based in Columbia, Maryland, is a private IT consulting firm that specializes in cybersecurity engineering services. With a workforce of around 53 employees, the company has carved out a niche in providing comprehensive solutions for both government agencies and corporate clients. Their service offerings include cyber defense, enterprise network security, and software engineering, showcasing their capability to address complex security challenges. SRC Technologies prides itself on an employee-centric approach, which not only enhances service quality but also fosters a knowledgeable and experienced workforce. The company has established itself as a reliable partner in the cybersecurity domain, focusing on delivering tailored solutions that meet the evolving needs of its clients.

15. Patriot LLC

• Website: patriotllc.net
• Ownership type: Private
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2005
• Headcount: 51-200
• LinkedIn: patriot-llc

Patriot LLC, founded in 2005 and based in Columbia, Maryland, is a private IT services company that focuses on cyber security, IT support, and project management. The firm caters to a wide array of clients, including federal agencies and Fortune 500 companies, providing essential services that enhance operational efficiency and security. Patriot LLC has established itself as a trusted partner in the government and commercial sectors, delivering innovative solutions and skilled personnel to meet the evolving needs of its clients. The company has achieved several significant certifications, including ISO/IEC 9001:2015, ISO/IEC 20000-1:2011, and ISO/IEC 27001:2013, which underscore its commitment to quality and information security. With a workforce of approximately 114 employees, Patriot LLC is recognized as a Service-Disabled Veteran Owned Small Business (SDVOSB) and a certified Minority/Disadvantaged Business Entity (MBE/DBE) in Maryland, further enhancing its credibility in the industry.

16. August Schell

• Website: augustschell.com
• Ownership type: Private
• Headquarters: Rockville, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1991
• Headcount: 51-200
• LinkedIn: august-schell-enterprises

August Schell, founded in 1991 and based in Rockville, Maryland, is a private IT solutions provider that specializes in cybersecurity and cloud computing services. With a workforce of around 103 employees, the company has carved out a niche in delivering comprehensive security solutions tailored to the needs of healthcare organizations and government agencies. Their portfolio includes data center security, software-defined data centers, and big data management, showcasing their ability to address complex IT challenges. August Schell is particularly noted for its expertise in micro-segmentation and identity access management, which are critical in safeguarding sensitive information. The firm has a proven track record of implementing effective cybersecurity measures, ensuring compliance with regulatory requirements, and enhancing operational efficiency for its clients. Their focus on automation and proactive defense strategies further underscores their commitment to protecting digital assets in an increasingly complex threat environment.

17. GTB: Global Telecom

• Website: gtb.net
• Ownership type: Corporate
• Headquarters: Owings Mills, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: December 2022
• Founded year: 1992
• Headcount: 11-50
• LinkedIn: global-telecom-gtb-

GTB: Global Telecom, also known as Xtel Communications, is a telecommunications and cybersecurity service provider based in Owings Mills, Maryland. Founded in 1992, the company has built a reputation for delivering a range of solutions that include managed cybersecurity, network security, and voice services. Xtel serves a variety of sectors, such as education, healthcare, and government, emphasizing the importance of secure and reliable communication. Their offerings include cybersecurity awareness training, penetration testing, and SOC as a Service, showcasing their commitment to protecting clients from cyber threats. With a workforce of around 40 employees, Xtel operates with a focus on enhancing productivity and safeguarding valuable assets through innovative technology. The company has not reported any recent funding, indicating a stable operational model without external financial backing.

18. Applied Network Solutions, Inc.

• Website: go-ans.com
• Ownership type: Private
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1999
• Headcount: 51-200
• LinkedIn: applied-network-solutions-inc--

Applied Network Solutions, Inc. (ANS), founded in 1999 and based in Columbia, Maryland, is a private company that specializes in IT consulting services with a strong emphasis on network engineering and cybersecurity. With a workforce of approximately 59 employees, ANS caters to businesses and organizations that face intricate IT challenges, providing them with advanced solutions to enhance their security posture. The company prides itself on a people-first culture, which is reflected in its commitment to employee engagement and professional development. ANS has built a solid reputation over its two decades of operation, focusing on impactful outcomes for clients through purposeful engineering. Their expertise extends to data science, allowing them to offer data-driven insights that further bolster their cybersecurity initiatives. ANS's dedication to continuous improvement and innovation positions them as a relevant player in the network security industry.

19. Chromagraphics, Inc.

• Website: chroma-graphics.net
• Ownership type: Private
• Headquarters: Upper Marlboro, Maryland, United States (USA)
• Founded year: 1989
• Headcount: 11-50
• LinkedIn: chromagraphics-inc

Chromagraphics, Inc., operating as SecureTokens, is a cybersecurity and IT service provider based in Upper Marlboro, Maryland. Founded in 1989, the company has built a reputation for protecting businesses and organizations from various cyber threats. Their service portfolio includes email security, endpoint protection, and managed services, all designed to create a robust defense against cyberattacks. SecureTokens employs a multi-layered approach to email security, utilizing advanced threat protection techniques to combat phishing and malware. They also offer next-generation endpoint protection that combines artificial intelligence with human threat hunting to address sophisticated attacks. Their commitment to education and user training further enhances their security measures, making them a proactive partner for businesses seeking to fortify their networks against evolving threats.

20. PLEX Solutions, LLC

• Website: plex-llc.com
• Ownership type: Private
• Headquarters: Bethesda, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2014
• Headcount: 51-200
• LinkedIn: plex-solutions-llc

PLEX Solutions, LLC, founded in 2014 and based in Bethesda, Maryland, is a technology consultancy that specializes in cybersecurity and engineering services. With a workforce of approximately 110 employees, the company primarily serves government clients, including the Department of Defense and the Intelligence Community. PLEX Solutions offers a range of services, including penetration testing, managed security solutions, and software development, all tailored to meet the unique needs of their clients. Their expertise extends to full-spectrum cyber operations, enterprise cybersecurity engineering, and intelligence and cyber threat analysis. PLEX is recognized for its commitment to providing a trained and ready cyber workforce, addressing the evolving threats in cyberspace. The company actively participates in community events and initiatives, showcasing its dedication to both its mission and the communities it serves.

21. VIKTech LLC

• Website: viktech.net
• Ownership type: Private
• Headquarters: Annapolis Junction, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: viktech-llc-

VIKTech LLC, based in Annapolis Junction, Maryland, is a private IT services and cybersecurity firm founded in 2007. The company is dedicated to providing innovative technology solutions that help businesses and organizations achieve mission success. VIKTech specializes in network architecture, systems engineering, and security engineering, which are critical components in the cybersecurity landscape. They serve a variety of clients, including both government and private sector organizations, ensuring that their information systems are secure and effective. VIKTech prides itself on teamwork and customer satisfaction, employing a team of professionals with strong technical backgrounds and security certifications. Their involvement in the industry is further highlighted by their partnerships with major players such as Northrop Grumman and Booz Allen Hamilton, showcasing their capability to deliver comprehensive cybersecurity solutions.

Network Security Insights: Key Companies in Maryland

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