Top Cyber Security Companies in Maryland


Today’s interconnected society, in which digital innovations play an integral role in both personal and professional arenas, necessitates stringent cybersecurity precautions.

With the increasing reliance on digital infrastructure for storing and transferring private data, cybersecurity risks have surged. In this dynamic environment, Maryland has emerged as a prominent hub for innovative cybersecurity services. Committed to protecting digital assets and fortifying cyber defenses, Maryland’s cybersecurity experts play a vital role. Moreover, the state boasts a vibrant ecosystem of creative businesses.

Delve into the realm of top Maryland-based cyber security firms, and renowned industry leaders equipped with cutting-edge technology. Their comprehensive understanding of evolving threats ensures customer safety. Through proactive measures, they establish system stability and security, empowering businesses to flourish in the digital age.

Cyber security firms have flourished in Maryland because of the state’s advantageous location near government agencies, defense contractors, and academic institutions. This favorable position has attracted top cybersecurity companies, fostering a dynamic ecosystem that promotes cooperation and the exchange of information. Maryland has positioned itself as a center of cybersecurity innovation thanks to its highly qualified workforce and enabling infrastructure.

Maryland invests in education and research to demonstrate its commitment to cybersecurity. CAMM is a key group that promotes understanding and cooperation among researchers, policymakers, and business executives in cybersecurity. Together, these initiatives have improved Maryland’s cyber defenses and fueled the development of the state’s cyber security industry.
In the following sections, we’ll examine the leading cyber security firms in Maryland, singling out each firm’s distinctive advantages and contributions to the industry. These organizations, ranging from global behemoths to scrappy upstarts, have won praise for their pioneering approaches to cybersecurity and their cutting-edge products and services.

Discover the top cyber security firms in Maryland for a strong digital infrastructure and staying ahead of threats. Join us in exploring the future of cybersecurity in Maryland and beyond.

Silent Circle

Location: Columbia, Maryland
Founded: 2012
Funds Raised: $130M
Employee Number: 51-100

Silent Circle takes the lead in enterprise privacy innovation, offering a groundbreaking portfolio of products and services. Their ultimate aim is to establish themselves as the most trusted secure communications firm, ensuring unwavering confidentiality. In a mobile world plagued by privacy concerns, they empower businesses to reclaim privacy rights for employees, partners, and consumers.

Founded by security specialist and former Navy SEAL Mike Janke, Internet Hall of Fame inductee Phil Zimmermann (co-founder of PGP and developer of the ZRTP protocol), and Jon Callas (designer of Apple’s full disk encryption software and co-founder of PGP Corporation), Silent Circle combines expertise and experience from diverse security backgrounds.


Location: Columbia, Maryland
Founded: 2002
Funds Raised: $565.5M
Employee Number: 501-1000 offers the industry’s most complete vulnerability coverage and has the capacity to anticipate which security issues should be remedied first. The service is managed in the cloud and is driven by technology developed by Nessus. You can achieve complete end-to-end management of vulnerabilities by using either the stand-alone solution or the component that is included in Tenable One.

Tenable is the name of the company that manages exposure. It can assist you in gaining comprehensive sight over your assault surface, which will allow you to keep a step ahead of those who would try to harm you.

Tenable One, the world’s first Exposure Management Platform, provides the visibility that your security teams need to observe your full attack surface at all times. This enables them to better protect your organization. Tenable provides your chief information security officer (CISO), other members of the executive team, and board of directors with the intelligence they need to zero in on the problems that are most important to your company, allowing you to make more informed strategic decisions.


Location: Baltimore, Maryland
Founded: 2013
Funds Raised: $154.2M
Employee Number: 101-250

With a commitment to enhancing digital security, ZeroFox is dedicated to its mission. Their platform, powered by artificial intelligence, detects and mitigates targeted phishing attacks, credential compromise, data exfiltration, brand hijacking, executive and location threats, and more. Leveraging diverse data sources, the proprietary ZeroFox SaaS solution safeguards millions of posts, messages, and accounts daily across social and digital platforms such as LinkedIn, Facebook, Slack, Twitter, Instagram, Pastebin, YouTube, mobile app stores, the deep and dark web, domains, email, and more.

ZeroFox is managed by a team of information security and high-growth company staff. The company has collected top industry awards such as Red Herring Top 100 North America, the SINET16 Champion, Dark Reading’s Top Security Startups to Watch, Tech Council of Maryland’s Technology Company of the Year, and the Security Tech Trailblazer of the Year. ZeroFox has raised funding from NEA, Highland Capital, Intel Capital, Hercules Capital, and other investors.


Location: Baltimore, Maryland
Founded: 2014
Funds Raised: $57.2M
Employee Number: 101-250

Headquartered in Baltimore, Protenus is a rapidly expanding technology-first firm. Established in 2014, our problem-solvers, subject-matter experts, and support stewards are located across the United States.

With a focus on healthcare organizations, Protenus supports risk elimination, compliance, cost reduction, reputation preservation, and patient/workforce/community safety. Their team offers AI-powered, scalable risk-reduction solutions, providing unified and actionable data. Through the use of artificial intelligence and advanced analytics, Protenus provides the only healthcare privacy solution built on a risk-reduction platform, offering untapped, intelligent scalability.

In the end, protecting the delivery of care while also pressing the sector to focus on what counts the most by driving the safest and best quality patient outcomes is the goal.

Trusted Knight

Location: Annapolis, Maryland
Founded: 2010
Funds Raised: $250K
Employee Number: 11-50

Trusted Knight protects renowned trademarks in finance, industry, automotive, and government sectors. Our research team, including founders, with intelligence backgrounds, is referenced by Tier 1 media. Industry veterans develop security solutions trusted by large enterprises and SMEs.

The company’s products excel in computing security and have been shortlisted for SC Magazine prizes. They prevent cyber-attacks, data compromise, and website defacement while reducing reliance on secure development or third-party updates. This innovative solution replaces standard WAFs, addressing their shared shortcomings with active learning, dynamic content serving, and cloud replication.

The product reduces the surface area vulnerable to attack by up to 99%. Reduces the overall complexity of operations. Reduces the amount of time needed for deployment drastically. Eliminates false positives & negatives.


It is impossible to underline how important it is to have strong cybersecurity safeguards in place, especially considering how rapidly the digital landscape is changing. When it comes to protecting their digital assets, organizations need to maintain a vigilant and proactive stance. Businesses in Maryland can gain access to the knowledge and technologies necessary to keep one step ahead of any cyber attacks by forming strategic partnerships with the most successful cyber security companies in the state.

To summarise, the cyber security companies in Maryland play an important part in the process of safeguarding not just organizations and individuals but also the digital infrastructure of the state. Their combined efforts improve cybersecurity practices and contribute to the robustness of the digital landscape as a whole. Organizations can confidently traverse the complicated cyber landscape and assure a safe digital future by taking advantage of the services and knowledge offered by these leading enterprises.