Jackmark Engineering

Jackmark Engineering Limited, established in 1984 and based in Stoke-on-Trent, UK, is a specialist contract manufacturer providing bespoke, high-quality electrical test connectors and lead assemblies. They also produce Software Download Stations (SWDL) and functional check equipment. With over 40 years of experience, Jackmark serves a broad spectrum of industries, including automotive, manufacturing, transport, agriculture, consumer goods, military, construction, and power & utilities, offering reliable testing solutions.

Their comprehensive capabilities span the entire project lifecycle, from initial design and prototyping to production and ongoing support. Jackmark offers in-house design and development using advanced CAD/CAM software, and can manufacture wiring harness test connectors directly from physical samples. Manufacturing processes include precision CNC machining of plastics and non-ferrous materials, with sub-contract services for milling, turning, routing, engraving, and finishing treatments like powder coating and anodising.

A key differentiator is Jackmark's rigorous in-house test and validation, including extensive mechanical and electrical checks. They operate as a Tier 1 supplier to the automotive industry, holding approved supplier status with numerous major OEMs and having developed test interface solutions for over 800 global customers. Their project management services ensure a seamless client journey from concept to sign-off, with options for on-site or video consultations.