NexTek is the premier source for Coaxial/RF Surge Protection and High Current EMC/EMI Filters. Our solutions are being used around the world to ensure proper system performance and compliance, across all 7 Continents and even into space!As a small business founded in 1986, we started life as an EMC Consulting company. After about 10 years of consultation, we decided to focus on and develop two major product lines that fall under the general "EMC Solution"​ umbrella. Coaxial RF Lightning and Surge Protector designs using Gas Discharge, Quarter-Wave, and Multistage technology. High Current EMI Feedthrough Filter solutions using C-Type (Capacitive) Filter technology.The applications where they are used are as varied as the industries that use RF Technology...An ever-growing list! Our military-grade product portfolio delivers both superior performance and value to the military, aerospace, industrial, communications, and medical electronics industries.NexTek is a Massachusetts based, ISO Certified, small business. We design, manufacture, test, and support everything we sell from our North Billerica, MA facility.We have Over 30 Years of Experience and Expertise, Just Let Us Know How We Can Help!