
HarshLink, LLC
Engineering High-Reliability Interconnect Solutions for the World’s Most Demanding Environments

About HarshLink, LLC
HarshLink, LLC is a specialized engineering consulting company dedicated to designing and delivering high-reliability interconnect solutions for extreme environments. With deep expertise in subsea, high-pressure, high-temperature, and radiation-prone applications, we understand the unique challenges that mission-critical systems face in the world’s harshest conditions. Our commitment to excellence and innovation ensures that every solution we deliver meets the most stringent performance and reliability standards.
We provide comprehensive services including custom cable assemblies, hermetic feedthroughs, and advanced connectors, all backed by expert consulting and prototype development. Our team works closely with clients to understand their specific requirements and deliver tailored solutions that optimize performance, durability, and safety. Whether you’re operating in the deepest oceans, highest pressures, or most extreme temperatures, HarshLink is your trusted partner for interconnect excellence.
Our Solutions and Services

Custom Cable Assemblies
Engineered cable assemblies designed for extreme environments including subsea, high-pressure, and high-temperature applications. Each assembly is custom-built to meet your specific performance requirements and environmental conditions.

Hermetic Feedthroughs and Connectors
High-reliability hermetic feedthroughs and advanced connectors that maintain integrity in radiation-prone, high-pressure, and extreme temperature settings. Designed for mission-critical applications where failure is not an option.

Engineering Consulting and Prototype Development
Expert consulting services and prototype development to optimize your interconnect solutions for harsh environments. Our team provides technical guidance, design validation, and rapid prototyping to ensure your systems perform reliably under the most demanding conditions.