With a 50-year history, United States Antenna Products, LLC is a Frederick, Maryland manufacturer known for rugged communications equipment used by military, government, and commercial customers. Its systems are designed for long-term service around the world, with engineering support and turnkey installation available for customers with specialized communication requirements.
Antek Systems, LLCEstablished in 1987, Antek Systems is a Frederick, Maryland satellite-communications specialist whose staff includes professionals with more than 25 years of earth-station experience. The company supports customers ranging from local television stations to government agencies and major earth-station operators, with particular strength in antenna integration and equipment testing.FREDERICK, MD
Antenna Research Associates, IncSince 1963, Antenna Research Associates has built its identity around solving demanding communications and national-security challenges with engineered antenna technology. The Laurel, Maryland company now combines manufacturing with engineering and testing, serving mission-critical defense customers from an 80,000-square-foot headquarters and facilities elsewhere in New England. ARA is certified to ISO 9001:2015 and operates in accordance with AS9100 standards.LAUREL, MD
EM AntennasFounded in 1963, EM Antennas designs and manufactures custom, high-performance RF antennas for military and commercial communication systems, with particular depth in rugged ultrawideband technology for electronic warfare and signal intelligence. The Johnstown company supplies mission-critical systems to defense contractors, government integrators and commercial users, and guarantees every antenna to its stated performance specifications. EM Antennas is ISO 9001:2015 certified and HUBZone certified; its rugged products include MIL-STD-810H-tested designs, and its EM-6841 antenna received a Platinum honor in the 2025 Military + Aerospace Electronics Innovators Awards.JOHNSTOWN, NY
MP AntennaFrom its Elyria facility near Cleveland, MP Antenna designs and manufactures patented multi-polarized antennas and RF hardware for reliable connectivity in challenging non-line-of-sight environments. The privately held company develops standard and custom solutions under one roof, taking projects from concept and prototyping through testing, validation, and production. All products are made in the USA, with an ISO 9001 quality system supporting applications ranging from public safety to transportation communications.ELYRIA, OH