About Us

Customer First. Right From The Start.

With an exceptional focus on the needs of our customers, CarlisleIT designs, builds, tests, certifies and delivers comprehensive, high-performance interconnect solutions created to elevate the performance of your business.

We partner with customers in Aerospace, Military, Space, Test and Measurement, Industrial and Medical Technology markets, providing virtually limitless solutions including unique cable configurations, custom high-frequency connectors, complete cable assemblies of any complexity, as well as specialized complex harnesses, racks and structures.

Since 1940, we have grown our product portfolio to include specialty and filtered connectors, contacts, cable assemblies, complex harnesses, racks, trays and installation kits. In addition to our vast product breadth, we provide our customers a higher level of support by offering engineering and certification services for the commercial aerospace, military and defense electronics, industrial, test & measurement, and medical industries.

The end-to-end solution is our goal—optimizing the process while speeding quality products to our customers. Vertical integration allows us to provide interconnect solutions covering every component of design and production. This allows you to focus on innovating the next breakthrough for your business. And our ability to create custom solutions means you have a true partner in innovation as you move your business forward.


CarlisleIT started operations in Tarrytown, New York in 1940 as Tensolite. The Tensolite name stands for the finest in miniature insulated wire and cable. A trademark coined from the properties built into all CarlisleIT wire and cable products; high tensile strength and compact lightweight performance. Tensile + Lightweight = “Tensolite”. The first insulated wire product produced by the company was used to electrically heat the gloves and flight suits of World War II Air Force pilots. CarlisleIT was an early pioneer in the application of insulation to miniature wire. We were one of the first to apply a unique material called PTFE to produce high-temperature wire and cable.


In 1959, Carlisle Interconnect Technologies (then Tensolite) became part of Carlisle Companies Incorporated (NYSE:CSL). CarlisleIT continues to enjoy the support of Carlisle today, which provides the financial strength and resources to allow us to explore emerging technologies and new opportunities as they come to light.

As Carlisle Interconnect Technologies evolved with the markets we serve, it became apparent that we needed to add to our ability to provide total interconnect solutions. Starting in 1998, CarlisleIT began to implement a strategy to vertically integrate into value-added cable assemblies. Our focus was to provide superior high speed, high density and RF/microwave cable assemblies to our customers. We have since added more capabilities through acquisitions that make us a Turn-Key solution for many applications. This satisfied the desire of the major electronic OEM’s to focus on a select group of suppliers that could offer value-added solutions.


By the nature of our vertical integration, we can provide interconnect solutions encompassing every facet of design and production. Through a single contact, our customers can solve a variety of product needs including unique cable configurations, custom high-frequency connectors, complete cable assemblies of any complexity and specialized complex harnesses, racks and structures. The end-to-end solution is our goal at CarlisleIT – eliminating extra steps while speeding quality products to our customers.

Our future plans include a continued focus on the expansion of our product and technical capabilities. We are firmly committed to staying on the forefront of the development of innovative interconnect solutions.

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