Multi-million-pound · Other round · Cleantech · Coventry, UK
LORILLION, a Coventry-based battery engineering company, has taken a multi-million-pound strategic investment from maritime technology group SubSea Craft in exchange for a 40% equity interest. The companies say the capital will expand LORILLION's engineering team to more than 70 people, accelerate its proprietary battery-management technology and support a new Midlands production facility planned for 2027.
A strategic customer buys into its battery supply chain
LORILLION develops bespoke battery systems for regulated and demanding applications across defence, marine, aerospace and automotive markets. Its service runs from initial concept and product design through validation, certification and production, rather than ending at a prototype. The companies already work together on a battery system for SubSea Craft's VICTA dual-domain vessel, which is designed to operate at depths beyond 50 metres.
That makes this investment partly a supply-chain decision. SubSea Craft says closer ownership gives it more control over a mission-critical system's performance, development pace and availability. LORILLION gains an anchor customer and capital for engineering and production capacity. The commercial logic is stronger than a passive financial stake when the customer can help specify, validate and ultimately deploy the product.
The same structure creates an execution test. LORILLION must expand capacity for SubSea Craft without becoming dependent on one programme or narrowing its ability to serve other customers. Its stated reach across several regulated sectors matters because reusable engineering, validation and manufacturing capability can spread the cost of specialist infrastructure across more than one platform.
From project engineering to certified production
Bespoke engineering businesses often scale headcount faster than output because each programme starts with new requirements. LORILLION's planned facility and proprietary battery-management technology could shift more of that work into repeatable systems and certified production processes. The investment will matter commercially if the company can reuse validated architecture and manufacturing know-how while still tailoring packs to each customer's safety, packaging and performance constraints.
LORILLION is also leading the £1.7m government-backed DUALCHARGE project to develop an integrated on-board charger and DC-DC converter for electric motorcycles and other compact electric platforms. The company said a pre-series prototype was planned for September 2026 and full commercialisation for 2028. Those are announced milestones, not completed production, but they show why additional manufacturing capability could serve both defence and civilian electrification programmes.
Explore this theme
Ultra-thin batteries could create new product categories — Michael Brehm, Mohamed Foulser and Moritz H. Futscher, EUVC · 25 September 2026. The article argues that battery innovation becomes commercially useful only when manufacturing is repeatable and customers can integrate it, the same production bridge LORILLION now has to cross.
Sources checked:
LORILLION company announcement · SubSea Craft investor announcement · LORILLION DUALCHARGE project · UK Defence Tech · Tech.eu Funding Explorer
Image: SubSea Craft, via its LORILLION investment announcement.
