About Us


Since 1982, Northern Technologies Corp. has continued its leadership in the design and manufacture of standard and custom high performance shielding products for the data communications industry. In addition to our popular line of connector covers, we offer a wide variety of D-subminiature, SCSI, V.35, fibre channel (GBIC), telco and modular style connectors.

Delivering More Than We Promise

Northern Technologies delivers a wide range of interconnect products for video, voice, data and power. Through our vast representative and distribution channels, Northern products are available in virtually every country in the world. We offer thousands of standard products. For custom products such as hardware or fabrications, we can take your specifications through all stages of product development. We provide a multitude of value added services. With sister company Lanpar Technologies, Inc., your products needs are just an email or phone call away.

Counterfeiting and Piracy

Last month I stumbled upon some Asian copies of our product. At first I was concerned about the impact they would have on our sales. I then realized there was much more at stake. Asian copies of our product will have a direct effect on our customers. We cannot provide any product guarantees and more importantly, material certification for regulatory compliance. Purchasing from authorized distributors will minimize your exposure to counterfeit products.

Welcome to Northen Technologies

Northern Technologies is a leading manufacturer of high performance EMI/RFI shielded and non-shielded connector covers for D-subminiature and high density SCSI connectors. We also offer an extensive line of D-subminiature connectors, SCSI connectors, V.35 connector kits, Category 3 to 5 accessories, over-mold cans, custom hardware and accessories. Northern Technologies metal and metalized plastic connector covers are designed and manufactured to meet or exceed the requirements of FCC Doc.#20780 for the suppression of EMI / RFI Class A and B. Most of the connector covers we provide utilize our patented NorTech™ compression insert system which virtually eliminates EMI / RFI emissions. Our "one size fits all" concept allows you to use the same connector cover with a wide variety of outside cable diameters, thus reducing inventory. Our compression insert system can potentially cut your cable assembly time in half. A full line of high quality connector products combined with a responsive order processing system, centralized warehousing and a broad network of stocking Distributors means you can count on Northern Technologies for all your connector product requirements.