At CEO (Boardroom Media) we track over 1,000,000 startups and over 5,000,000 people who hold key positions in these companies. We use this directory of startups to highlight top employees, founders and board members we think deserve more appreciation than they are currently getting.
This list showcases the top Columbia based CEO’ operating in the Network Security space. If you think a CEO’ is missing from this list, feel free to contact our editor on [email protected]
The individuals on this list have been included because of exceptional performance in one of the following categories:
- Innovation – Operating as a key part in an extremely innovative business or startup.
- Growth – Operating as a key figure in the growth and upscale of a market leading business or startup.
- Management – Showing exceptional management skills.
- Societal impact – Putting their business on the map for their positive societal or environmental impact.
Our Data – We source our data from OSINT (open source intelligence) and public directories such as Crunchbase, SemRush and many more. The data from these sources should be treated with a degree of caution and verified yourself.

Nathaniel Fick
CEO of Endgame
Nate Fick is CEO of Endgame. He has more than a decade of experience in the security community, and is an operating partner at Bessemer Venture Partners, where he focuses on defense and intelligence technologies. Before joining Endgame, Nate was CEO of the Center for a New American Security, a national security research organization. He served as a Marine Corps infantry officer, including combat tours in Afghanistan and Iraq. His book about that experience, One Bullet Away, was a New York Times bestseller, a Washington Post “Best Book of the Year,” and one of the Military Times’ “Best Military Books of the Decade.” He graduated with high honors in Classics from Dartmouth College and holds an MPA from the Harvard Kennedy School and MBA from the Harvard Business School. Nate serves as a Trustee of Dartmouth and a Director of the Marine Corps Scholarship Foundation, and he is a member of the Council on Foreign Relations.
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About Bessemer Venture Partners, Endgame, Marine Corps Scholarship Foundation: Endgame’s endpoint protection platform protects the world’s data from advanced attacks.
Mischel Kwon
CEO & Founder of MKACyber
Mischel Kwon is a recognized IT security leader with over 30 years of experience in technical security operations, incident response and information assurance as well as building and managing organizational and national level SOC, CERT and IR Teams. Kwon currently serves as the President and CEO of MKACyber, a security consulting firm specializing in Technical Defensive Security, Security Operations and Information Assurance. Kwon has held senior roles in the U.S. Government, including Director of US-CERT where she coordinated national-level IR activities and at the U.S. Department of Justice where she established and managed the Justice Security Operations Center (JSOC). Kwon holds an M.S. degree in computer science and a graduate certificate in Computer Security and Information Assurance.
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About MKACyber: A rapidly expanding Managed Security Operations Services Provider with elite SOC expertise.
Yossi Appleboum
CEO & Co-Founder of Sepio
As CEO of Sepio Systems, Inc., Yossi is responsible for North American operations at Sepio. He brings 25 years’ experience in security, networking, and computer science and control systems, along with a wide-angle perspective to cyber security threats and unique security solutions. In the early 1990s, Yossi joined the technology unit of the Israeli Army Intelligence Corps (Unit 8200). As team leader and chief architect, he focused on design and development of critical infrastructure network monitoring and security systems. In 1998, Yossi co-founded WebSilicon, a company dedicated to delivering advanced networking and security systems. As VP of research and development, Yossi was involved in the design and implementation of numerous systems for government agencies, integrators and vendors worldwide. In 2007, Yossi became the company’s CTO, responsible for North American business activities. In this role, he worked with key customers to develop next-generation network monitoring and security systems. In 2013, WebSilicon was acquired by Magal (NASDAQ: MAGS), one of the world’s largest physical security integration companies. After the acquisition, Yossi led the integration of the company into Magal and was instrumental in rebranding WebSilicon as CyberSeal. Yossi served as CTO for cyber security of Senstar, the North American division of Magal, and relocated to the United States to work closely with key customers and partners. As CTO, Yossi was involved in all phases of development of the Tungsten Cyber Security Appliance and the Rubidium Central Monitoring Systems. These solutions converge physical and logical security and introduced a higher echelon of cyber security to the market.
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About Sepio: Sepio helps enterprises managed hardware related risks using physical layer information.
Terry Speigner
President & CEO of Ngen
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About Ngen: NGEN is a professional services firm helping small to mid-sized businesses get the most from computer.

Adam Vincent
CEO & Co-Founder of ThreatConnect
Adam is an information security expert and currently the CEO at ThreatConnect, Inc., as well as a founder. He possesses over a decade of experience in programming, network security, penetration testing, cryptography design & cryptanalysis, identity & access control, and a detailed expertise in information security. The culmination of this knowledge has led to the company’s creation of the ThreatConnect platform, the first-of-its-kind intelligence-driven security operations platform. He currently serves as an advisor to multiple security-focused organizations and has provided consultation to numerous businesses ranging from start-ups to governments, Fortune 500 organizations, and top financial institutions. Adam holds an MS in computer science with graduate certifications in computer security and information assurance from George Washington University.
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About ThreatConnect: ThreatConnect fuses intelligence, automation, orchestration, and response to enable organizations to be more proactive, and efficient.

Keith Alexander
CEO & President of IronNet Cybersecurity
At IronNet Cybersecurity, as the CEO and President, General (Ret) Keith Alexander provides strategic vision to corporate leaders on cybersecurity issues through development of cutting-edge technology, consulting and education/training. He is reinventing how industries mitigate cybersecurity threats with IronDefense, a patented solution designed to detect and alert on anomalous enterprise network behaviors through fine-tuned analytics. His goal is to bridge communication systems between private and government sectors to create the next level of intelligence sharing and protect the nation against cyber threats on a global stage. General Alexander is a four-star general with an impressive 40-year military career, culminating in role of the Director of the National Security Agency (NSA) and Chief of the Central Security Service (CSS) from 2005-2014. He holds the distinction of serving in this role longer than any other director. While serving as the NSA Director, he was appointed by Congress to be the first Commander to lead the U.S. Cyber Command (USCYBERCOM). He held this role from 2010-2014, establishing and defining how our nation is protected against cyber attacks. As Commander, USCYBERCOM, General Alexander was responsible for planning, coordinating and conducting operations, and defending Department of Defense (DoD) computer networks—as well as the defense of the nation—from cyber threats. As the Director of NSA, he was responsible for national foreign intelligence requirements, military combat support, and the protection of U.S. national security information systems. Prior to leading USCYBERCOM and the NSA/CSS General Alexander served as the Deputy Chief of Staff, Intelligence, Department of the Army; Commanding General of the U.S. Army Intelligence and Security Command at Fort Belvoir, VA; and the Director of Intelligence, United States Central Command, MacDill Air Force Base, FL., and the Deputy Director for Requirements, Capabilities, Assessments and Doctrine, J-2, on the Joint Chiefs of Staff. Serving as a member of the President’s Council on Enhancing National Cybersecurity, General Alexander developed key recommendations to create a defensible national cyber architecture to protect national security by promoting rapid innovation and close public-private collaboration while preserving privacy and civil liberties. General Alexander is the recipient of the 2016 United States Military Academy (USMA) Distinguished Graduate Award. He holds a BS from the U.S. Military Academy, as well an MS in Business Administration from Boston University; an MS in Systems Technology and an MS in Physics from the Naval Post Graduate School; and an MS in National Security Strategy from the National Defense University.
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About Commission on Enhancing National Cybersecurity, IronNet Cybersecurity: IronNet Cybersecurity is a network security company that bridges gap between traditional cybersecurity approaches and evolving threat.
Roselle Safran
CEO & Founder of KeyCaliber
Roselle spent a decade as a cybersecurity practitioner and leader before becoming an entrepreneur. She led cybersecurity operations at the Executive Office of the President during the Obama Administration, directing tactical measures and strategic initiatives for protecting and defending the White House’s network. Prior she managed the computer forensics and malware analysis teams at the Department of Homeland Security’s US-CERT. With an understanding of the needs and technology gaps in the industry, she switched gears to cybersecurity entrepreneurship. The first cybersecurity she founded was Uplevel Security, which was acquired by McAfee. KeyCaliber is the second cybersecurity startup she has founded.
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About KeyCaliber: KeyCaliber automatically identifies critical cyber assets and their connections

Steven Rogers
Founder & CEO of Centripetal Networks
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About Centripetal Networks: Centripetal Networks Inc. is dedicated to protecting organizations from advanced threats by operationalizing intelligence-driven security.
Kurtis Minder
Founder and CEO of GroupSense
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About GroupSense: GroupSense is a provider of cyber intelligence services.
Derick Naef
CEO of ReFirm Labs
Seasoned software industry executive with a unique blend of start-up and global business experience combined with deep code-level understanding of technology. Co-founded and grew a software company, evolved business strategies and achieved a successful exit for investors and employees. Led engineering, product management, marketing and sales teams to create and launch multiple innovative, award winning products. Led a highly profitable business unit in a global mid-market software company in a very competitive market space.
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About Ochimo, ReFirm Labs: ReFirm Labs is a group of IoT security experts that develops a new method for vetting and validating firmware.

John Trauth
CEO/President and Co-Founder of Bricata
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About Bricata, MACH37: The leading network traffic analysis, intrusion detection, and threat hunting platform, providing total visibility into your network.
Joe Saunders
CEO & Founder of RunSafe Security
Joe Saunders is the Founder & CEO of RunSafe Security, Inc.
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About NextGen Venture Partners, RunSafe Security: RunSafe Security is to immunize software from cyber attacks and disrupt hacker economics without developer friction.

Ian Paterson
CEO of Plurilock
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About Plurilock: Plurilock provides invisible MFA & continuous authentication using state-of-the-art behavioral-biometric & machine learning technology.
Jed Van Dyke
Chief Executive Officer of The Van Dyke Technology Group
Mr. Van Dyke has over thirteen years of experience in building, growing, and managing technology-centric businesses. Since joining the firm shortly after its creation in 2002, Mr. Van Dyke has held a variety of responsibilities at The Van Dyke Technology Group, all directed toward the common objective of ensuring exceptional service and solutions that address customers’ mission critical requirements. As Chief Executive Officer and Chief Financial Officer, Mr. Van Dyke is responsible for providing leadership for corporate strategic and business planning activities. As CFO, he is responsible for the oversight and management of the firm’s finance, human resources, legal, contracts, and administrative functions.
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About The Van Dyke Technology Group: The Van Dyke Technology Group is a 180-person cybersecurity firm specializing in identity and access management.