E.ON One
Software DevelopmentNorth Rhine-westphalia, Germany51-200 Employees
E.ON One operates as an ecosystem that connects energy software scale-ups with the corporate energy sector, aiming to accelerate the transition to cleaner energy through digital solutions. As part of the E.ON Group, it serves as a bridge between smaller innovators and larger energy operators, helping early-stage software developments grow and achieve meaningful impact across the energy value chain. Through its portfolio, the firm supports digital solutions that transform energy infrastructure, grid operations, and energy management. The portfolio includes envelio, gridX, Elvah, Lemonbeat, and Evailable. Based in Essen, in North Rhine-Westphalia, Germany, E.ON One occupies a position in software development focused on energy applications. Its primary customers are energy software scale-ups seeking to scale within the market, as well as corporate energy players aiming to digitalize their operations. The company acts as a conduit within the broader energy industry, linking innovative software providers with the E.ON Group's energy activities. A notable recent development is Copperleaf Technologies' December 2025 partnership with E.ON, reflecting ongoing collaboration to advance asset investment planning.