RML Group

RML Group

RML Group is a UK-based advanced engineering company specialising in the design, integration and low-volume manufacture of high-performance vehicles and complex electro-mechanical systems. Founded in 1984 and headquartered in Wellingborough, Northamptonshire (6–10 Whittle Close, NN8 6TY), we operate from 64,000 sq ft of engineering and build space, including a dedicated 10,000 sq ft battery & powertrain area with restricted access for quality and safety.

Our heritage in motorsport and niche automotive underpins a capability set that maps directly to the drone, uncrewed and advanced mobility sectors: systems engineering and simulation; structures and chassis; HV/LV electrical architecture; control systems (BMS/VCU/HIL/SIL); software; harnesses and electronics; prototype through LRIP build; and full test & validation. We are ISO 9001:2015 accredited across the business.

RML is recognised for class-leading electrification competence, including the design and manufacture of bespoke high-power and high-energy battery systems (cylindrical/pouch), immersion-cooled architectures, laser cell welding with automated quality reporting, and UN38.3 / UNECE R100 certification pathways. Our teams have delivered several landmark programmes, most notably the NIO EP9 pure-EV hypercar and the Nissan ZEOD RC hybrid, combining full-vehicle design, controls, thermal management and rapid build to OEM standards.

For drone and uncrewed applications, we support UAV/UGV/UUV platforms with: mission-appropriate battery packs and power distribution, lightweight structural design, environmental sealing and thermal management, drive-by-wire integration, rapid prototyping, and instrumented test (cell/module/pack cycling, vibration & shock, fast charge, duty-cycle validation). Our integrated approach shortens development cycles and de-risks transition from prototype to low-rate initial production.

Whether you need a flight-ready energy system, a ruggedised ground platform, or a turnkey demonstrator built to OEM fit/finish, RML provides a single, confidential partner from requirements capture to tested hardware, right first time, every time.