ESP manufactures the prosthetic valves, liners, and knee sleeves practitioners specify when reliability is non-negotiable. Designed, machined, and proven domestically.
Domestic manufacture
Machined tolerance
01 · Engineering
Our parts have been reverse-engineering targets for decades. The attempts fail. Our IP holds because the manufacturing process is ours alone.
02 · Provenance
Nearly everything ESP makes is manufactured at our facility in northwest New Jersey. No offshore tooling, no surprise CMOs, no tariff exposure.
High-precision expulsion and shuttle valves machined in New Jersey.
Explore valves →Silicone suspension liners engineered for all-day comfort and security.
Explore liners →Suspension sleeves built for activity — flexible, durable, domestically made.
Explore sleeves →A small team of engineers making prosthetic components trusted worldwide. We’re a boutique manufacturer because that’s how the work gets done right.
Every question ESP has fielded on the phone, answered. Cleaning videos, fabrication walkthroughs, and the full IFU library, all searchable by SKU.
