Stephill Generators

Stephill Generators is the UK’s largest volume manufacturer of portable and heavy-duty generators, providing the essential power required to run remote commercial diving and marine operations. Founded in 1985, the company brings four decades of engineering expertise to the industrial power sector. Based in Wellingborough, Northamptonshire, Stephill has built an ironclad reputation for designing rugged, dependable generators that keep critical life-support and tooling systems running in the most unforgiving environments.

As a specialist in remote power generation, Stephill offers an extensive range of petrol and diesel generators, from compact 2kVA units to heavy-duty 115kVA multi-phase power plants. Rather than manufacturing their own engines, Stephill pairs premium, industry-leading engines from Honda, Kubota, Yanmar, and Perkins with top-tier Mecc Alte alternators. This ensures unparalleled reliability, easy starting in cold marine conditions, and global availability of engine spare parts when operating offshore.

In addition to raw power output, Stephill is highly regarded for its focus on operational safety and environmental compliance. Their “Super Silent” diesel range features heavy-duty acoustic canopies, which are crucial for reducing noise pollution on busy dive stations or during nighttime operations. Built with fully welded steel wrap-around frames and compliant with the latest Stage V emissions standards, these generators are designed to withstand the physical abuse of being craned onto vessels and transported to rugged coastal dive sites.