New York Stock ExchangeDVS has been involved threat and risk assessments as well as the consultation, design, engineering documentation (drawings and specifications), construction supervision and final turn-over implementation for secure facilities throughout the world since 1964.  These projects have included both physcial and electronic security, staffing programs, risk management strategies, and long-term planning.

DVS works with industry standards boards and manufacturers to stay current on the latest security methods and technology, and routinely partners with manufacturers on incorporating new features into products.  DVS has a fully-equipped in-house CAD department, utilizing the latest version of AutoCAD for drawing creation and 3D rendering services.  All electronic files are Philadelphia Museum of Artsecurely stored and backed up, and submittals associated with each job are archived and stored indefinitely.

Recognizing, from its inception, that security encompasses a number of disciplines, the firm purposely maintains a broad spectrum of personnel and professional capabilities in order to ensure the success of risk and threat assessment, security planning and programming, and the production of security engineering drawings, specifications and the construction supervision over the installation of those systems. We also acknowledge, advocate, and provide extensive assistance to the architect and other design team Independence National Parkand protection professionals in the selection of architectural security features and building components, penetration/forced entry and bullet resistive criteria, defensible space design and coordination of critical mechanical and electrical support systems to create hardened and threat resistant facilities. DVS has no association with any products, is not related to any sales or manufacturing organization,  and maintains a professional position of product evaluation and specification solely on the basis of need for a particular site and client use program.