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Building Shielding Products Installation of Custom Security Panels
Building Shielding Products
Building Shielding Products LCD Switchable Privacy Glass
Building Shielding Products
Building Shielding Products Switchable Privacy Glass
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Founded In: 1999

Our Story

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Signals Defense, LLC was founded in Owings Mills, MD in 1999 with the introduction of an innovative optically clear window film technology that provides high RF (Radio Frequency) and IR (Infrared) attenuation for RF Shielding and Thermal Imaging defense purposes. Signals Defense patented window technology has been engineered to meet stringent US Intelligence Community security requirements for facilities handling classified information.

Our technology is the de facto written standard for the US Government and for organizations desiring to properly secure locations handling sensitive and/or classified information. Signals Defense window films meet the TEMPEST requirement for the Intelligence Community Directive ICD 705 and the DoD Infrared and Radio Frequency Emanation Protection Standards. Signals Defense technology has been deployed on over 1,400 locations providing our clients (including Government Intelligence agencies, DoD, and Fortune 100 companies) with US DoD emission security systems. Signals Defense technology also provides safety and energy benefits to our clients with UV and glass fragmentation/spall control window films, SD glass, and polycarbonates.

Signals Defense's product line has evolved into a Building Shielding materials portfolio.  In addition to Signals Defense film technology which is extremely viable because it offers an element of security that no one else can currently provide, the company has expanded its marketing of other RF and IR shielding materials to include rFoil and paints.  Additional "shielding" products such as shades and blinds have been added and are designed to shield against harmul UV/solar energy and provide additional privacy. 

Signals Defense, your building shielding expert, is available to assist with any commercial or government building shielding. From security window films, to custom motorized blinds or decorative films, Signals Defense is your one-stop for building shielding and security.

Signals Defense, Inc. has been listed in the Blue Book since 2007.

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What We Do

Products/Services Relating to Bullet Resistant Products
Products/Services Relating to Glass--Tinting & Coating
Products/Services Relating to Radio Frequency Shielding
Products/Services Relating to Glass Manufacturers & Distributors
Products/Services Relating to Window Treatments & Coverings

Project Experience

Education (K-12)
School / College / University
Fire / Police Station
Hospital / Nursing Home
Manufacturing Plant
Apartments & Condominiums
City / Town Hall
Terminal - Airport / Bus / Railroad
Retail Store
Jail / Prison
Club House / Community Center
Mixed Use
Secure and Shielded Facilities
Storage Facility / Warehouse
Assisted Living
Data Centers - Mission Critical
Non-Residential Building
Court House
Medical Office
Post Office
Radio / Television Station
Residential Building

Service Areas

Preferred Brands & Manufacturers

Llumar Window Film
Llumar Window Film
3M Authorized Window Film Dealer
3M Authorized Window Film Dealer
Draper Window Shades
Draper Window Shades
Hunter Douglas
Hunter Douglas

Associations & Memberships

Member of AGC of Maryland AGC of Maryland
Member of AIA (American Institute of Architects) AIA (American Institute of Architects)
Member of ASIS International (American Society for Industrial Security) ASIS International (American Society for Industrial Security)
Member of IWFA (International Window Film Assn.) IWFA (International Window Film Assn.)
Member of Mid-Atlantic Glass Assn. Mid-Atlantic Glass Assn.
Member of SAME (Society Of American Military Engineers) SAME (Society Of American Military Engineers)
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