Since its founding in 1979, Reactel, Incorporated has built its identity around specialized RF and microwave engineering for demanding communications and defense applications. The Gaithersburg manufacturer develops custom filters and related assemblies for customers worldwide, with designs reaching millimeter-wave frequencies and an ISO 9001 certification held since 1996.
AS9100
ISO 9001
AMCOM Communications, IncAMCOM Communications was founded in 1996 by two former Comsat RF engineers and remains a Gaithersburg-based, fabless company built around specialized microwave expertise. Its engineers develop custom RF solutions for customers in aerospace, defense, telecommunications and other demanding fields, with more than 150 power-module designs completed. AMCOM maintains ISO 9001:2015 certification and sells its products in more than 30 countries.ROCKVILLE, MD
Microwave Filter Company, IncFounded in 1967, Microwave Filter Company is an East Syracuse small business known for building mission-critical RF solutions in the United States. Its 40,000-square-foot facility supports custom filter work for communications and defense customers, with testing available to 50 GHz.EAST SYRACUSE, NY
Eastern Wireless TeleComm, IncEastern Wireless TeleComm, Inc. (EWT) is a U.S. manufacturer specializing in custom-designed and manufactured RF and microwave filters and filter-based products. Its capabilities include cavity and waveguide filters up to 50 GHz, lumped-element filters up to 10 GHz, integrated assemblies, and wireless products for military, commercial, wireless, and space applications.SALISBURY, MD
COTS RF, LLCCOTS RF, LLC is a woman-owned small business that manufactures custom RF, microwave, and mmWave filters and related assemblies for military and defense applications. Based in Gaithersburg, the company distinguishes itself through rapid prototyping and custom hardware development, with some products shipped within a week for urgent field-testing needs. Its offerings also include broadband dividers and combiners and configurable switch filter banks.WESTMINSTER, MD