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About Celerium

Powering active cyber defense solutions to help overwhelmed companies of all sizes defend against cyber threats. 


Our History

Celerium was formed in 2019 as the branded cybersecurity business unit of a company founded in 2002 following the September 11 attacks. The former company delivered situational awareness and readiness solutions to help organizations protect themselves against physical threats.

The evolution of the business threat landscape to include cyber threats inspired the creation of the cyber business unit, which became Celerium.


Our Principles

Our team aspires to excellence in all that we do.  That covers our work in developing active cyber defense solutions as well as how we deliver those solutions. We also have a strong focus on security – we don’t just talk about security, we act on it. Our team has years of experience in implementing cybersecurity compliance frameworks, including NIST 800-53. The emphasis on security is seen in our internal operations as well as our products. 


Helping Solve the Cybersecurity Challenge

Today, companies of all sizes face increased pressure from ransomware and other cyber threats. In fact, cyber incidents top the list of leading risks to businesses worldwide in 2022, according to a survey conducted by Allianz. However, a large skills gap in the industry coupled with a lack of resources makes it difficult for companies to implement effective cybersecurity measures.

That’s where Celerium comes in. Through our Cyber Defense Network™ (CDN), we power active cyber defense solutions that are easy to implement and effective in the key areas of network defense and compromise defense. Our CDN suite of solutions also focuses on community defense. In the cyber world, threat actors find the open doors to gain access to multiple targets. By helping improve collective defense of communities, we can make cybersecurity efforts more impactful.

Meet the Team

Tommy McDowell headshot

Tommy McDowell

General Manager

Tommy McDowell is a seasoned leader in cyber threat intelligence, risk management, and information security who has helped private sector and governmental organizations transform their cybersecurity understanding and practices. As the General Manager of Celerium, McDowell leverages his nearly 20 years of experience, thought leadership and insight in cybersecurity and threat intelligence to help businesses and organizations defend their supply chains.  

McDowell came to Celerium from the Retail & Hospitality Information Sharing and Analysis Center (RH-ISAC). During his tenure as vice president of intelligence, he overhauled the organization’s intel team and capabilities, significantly increasing intelligence sharing and member engagement. He also served as deputy director of the ISAO (Information Sharing and Analysis Organization) Standards Organization, providing strategic guidance and standards review.

Previously, McDowell was senior director of cyber threat intelligence at a global cybersecurity company. In this capacity, he worked to align security posture and business vision, addressed organizational risk through intelligence-led risk management strategies.  He has also designed and evolved cyber security programs and practices for critical infrastructure including the development of standards for control systems security with the National Institute of Standards and Technology (NIST). 

McDowell proudly served in the U.S. Army, and also held a position at NCIS. 

Randall Smith

Randall Smith

Celerium's CFO/CAO

Randy is a forward-thinking and versatile senior finance executive with extensive, hands-on operational experience. He previously served as the CFO at NC4 Inc., PJ Media, The ESP Group, and as the Sales Operations Executive at IBM. In addition to these roles, he served as the VP of Worldwide Sales & Service Operations, the AVP, Senior Director, and Director of FP&A at Candle Corporation. Randall has a BS in Finance from the University of Southern California and an MBA from Loyola Marymount University.

Karl Kotalik headshot

Karl Kotalik

Chief Solutions Officer

Karl has more than 30 years of experience in the design, development, and implementation of technology solutions for government agencies, commercial businesses and large enterprise corporations.  Prior roles include  Vice President and General Manager of Global Risk Intelligence, at Everbridge and CEO of NC4, a leading risk intelligence monitoring company with over 300 Fortune 1000 enterprise customers. NC4 was acquired by Everbridge in 2019.

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Lyndsi Stevens

Chief Marketing & Communications Officer

Lyndsi started her marketing career at a boutique agency in Washington, D.C. that served political and issue advocacy clients as well as technology clients (including HP, Intel, Google, and Lenovo to name a few). Since then, she’s worked in several industries, from online publishing to the highly regulated financial services area. She earned a BA in Public Relations from Florida State University and an MA in Communication, Culture, and Technology from Georgetown University. A member of the Forbes Communication Council, her published writing covers topics including crisis communications and building strong company cultures.

Chris Gundel headshot

Chris Gundel


Chris has held executive-level positions in software delivery, product management, professional services, and served as the worldwide customer training and certification leader for IBM Tivoli. He has extensive experience in the software delivery lifecycle (SDLC), courseware development, training delivery, and, certification testing. In addition to his years of experience as as an executive in the high tech industry, Chris’ formal education includes a PhD, MS and MBA.

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Nate Shiflett

Chief Compromise Response Officer / CISO

Nate Shiflett is an experienced CISO with a proven track record in developing and executing cybersecurity strategies. A few highlights from his career include roles as: CISO for the State of Florida, leading security initiatives at a large scale; Cybersecurity Consultant – Critical Infrastructure OT at the U.S. Air Force; Director of Posture and Compliance at Sylint; Linux System Administrator for the U.S. Navy.

Vince Crisler headshot

Vince Crisler

Chief Strategy Officer

Vince Crisler has more than 25 years of IT and cybersecurity leadership within the Department of Defense, federal civilian government, and private sector. Previously, he was CEO and Founder of Dark Cubed, a cybersecurity product company focused on innovative solutions for small and midsize companies which was acquired by Celerium in 2022. 


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