Lyons Security Services, Inc.
Always on Target


Passion. Experience. Diligence.



Founded in 1983, Lyons has been providing outstanding security solutions for over 35 years.  In 1996, Lyons Security Service was transformed from a partnership, and was incorporated as Lyons Security Service, Inc. As sole corporate officer, President and Chief Executive Officer Kathleen Guidice possess extensive experience in the private security industry. Under Mrs. Guidice's leadership, Lyons Security Services, Inc. has maintained its commercial operations in the Northern California area, while vigorously pursuing Government security contracts and nationwide expansion.

In the six months following the incorporation of Lyons Security Services, Inc., the company grew 1000 percent in projected annual gross receipts, and today continues its rapid expansion and economic success stressing absolute contract compliance and a superior quality of service.

Today, Lyons Security Services, Inc. has officers on the east and west coasts. The company boasts an impressive list of clientele to include the U.S. Immigration and Naturalization Service, U.S. General Services Administration, U.S. Department of Defense, U.S. Social Security Administration, and many, many prestigious commercial clients.


Get in Touch

We at Lyons Security Services, Inc. know that finding the right security partner for your business is not a choice to be taken lightly. That’s why we offer free consultations to walk you through your needs, the scope of your goals, and your budget.

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Our Leadership Team


President and CEO

Kathleen Guidice

Kathleen has served as the CEO and President of Lyons Security Services, Inc. since 1996. Under Kathleen's leadership, the company has expanded to service to northern and southern California, as well as operations on the east coast. Kathleen’s vision is to be the leader in security solutions, offering clients manned guarding and the best customer service in the industry.  



Vice President, Business Development and risk management

Nicholas Guidice



Regional Director, Northern California

Robin Cheatam



Regional Director, Southern California

William J. Guidice, Jr.