About

Our Team

Focused expertise on system design, implementation & full lifecycle support

All the technology in the world won’t provide security from every angle without industry-leading professionals to design, install and support a comprehensive, integrated security system.

IST team members are highly trained, seasoned security experts with the experience and listening skills required to solve difficult problems in complex environments. Our team has successfully managed hundreds of complex, large-scale integrated security and IT projects throughout the United States. We’re here to help you tackle your toughest challenges with reliable, maintainable and cost-effective solutions.

Alexander W. Oppenhimer

Alexander W. Oppenhimer

CEO

Alexander Oppenhimer is an accomplished executive with over 25 years experience in network engineering, systems administration and project and security program management. He is both a co-founder and the current CEO of IST. He has been an integral part in the formation, transformation and growth of IST. In addition to a B.A. from the University of Virginia, he holds numerous technical certifications in advanced security hardware and information technology software systems.

Jon A. Langhorst, PSP

Jon A. Langhorst, PSP

President

Jon Langhorst sets the standard for excellence at IST as its President, bringing several decades of experience in every aspect of the security industry to bear on the company’s growth and development. For almost 40 years, Langhorst has been managing large, complex and sensitive projects for organizations within and outside the public sector. His expertise in the design and engineering of integrated security systems, technical project management experience, and intimate knowledge of the most advanced video, intrusion and access control systems, as well as physical construction requirements, gives Langhorst the insight required to successfully guide IST and its clients into the future.

Michael Margolis

Michael Margolis

COO

Michael Margolis leads IST’s operations group. Throughout his extensive career in security and computing, Margolis has been involved with networking, cyber security, high availability and scalability of IP based systems. He has experience with scalable IP video systems, FIPS compliant access control, intrusion systems, compound design and countermeasures. He holds a B.S. in Computer Science from The George Washington University School of Engineering.

Michael S. Ruddo

Michael S. Ruddo

Chief Strategy Officer

Michael Ruddo brings IST clients a unique combination of industrial security, procurement and contract negotiation expertise developed over the course of his 30+ years of experience designing, engineering and implementing security management systems. He is responsible for managing the strategic vision and the brand of the company, including developing and building relationships with the industry’s leading manufacturers of security and IT products, and ensuring IST clients have access to the most advanced solutions and services to meet their needs at preferred pricing levels. He is also responsible for negotiation and management of our various Contract Vehicles. Ruddo has been a member of the IST team since 2005.

Teresa R. Clarke

Teresa R. Clarke

Vice President, Finance and Administration

Teresa Clark brings 30+ years of financial “back of the house” experience to IST and is responsible for planning, implementing, managing and running all of IST’s financial activities, including receivables, payables, client relations, employee relations, budgeting, logistics and procurement. Clark’s commitment to process flow was instrumental in IST’s being awarded its ISO 9001:2015 registration without exceptions designation, as well as supporting its annual renewals since 2005. She has been a member of the IST team since 2004.

Jerry Noah

Jerry Noah

Vice President of Operations

Jerry Noah brings veteran leadership and 20+ years of security experience to IST's operations department. Starting with IST as a lead technical resource in the field, he has risen through the ranks by serving as a project manager and director of operations before attaining the prominent position of vice president of operations. Noah has been instrumental in promoting an internal IST team approach to promote positive employee morale and ultimately ensure we serve our clients at the highest level. He has been a member of the IST team since 2006.

Shawn M. Ruddo

Shawn M. Ruddo

Vice President of Account Support

Shawn Ruddo brings 20+ years of experience in system engineering, networking and project management to IST’s clients. Leading the pre-sales and post-sales engineering team for IST, she and her team are responsible for new product and integrated solution evaluations, system design and implementation, and advanced customer support. Working closely with IST’s business development and operations teams, Ruddo helps ensure that IST’s clients get the best possible solution to meet their current needs. As a subject matter expert to many IST clients, she also provides advice and direction on new and complementary technologies. Ruddo has been a member of the IST team since 2009 and holds the industry’s highest-level certifications: CSEIP and PMP.

Heath Mabe

Heath Mabe

Vice President of Business Development

Heath Mabe leads IST’s business development efforts and is responsible for improving our market position, which includes implementing updates in security software and technology, and understanding and anticipating customer trends within the market. With 20+ years of security experience, including positions as a field engineer, program manager and sales manager, he has a deep understanding of security management systems and associated life-cycle support program activities. As a security industry expert, Mabe is a trusted advisor to more than 100 IST clients as well as our internal sales team. Mabe has been a member of the IST team since 2013.