Trojan Technologies is a leading player in the water disinfection market, specializing in ultraviolet (UV) technologies. Trojan Technologies’ ultra-purification systems deliver high-purity water for semiconductor manufacturing processes. This includes UV Treatment and UV Advanced Oxidation, in addition to water separation and filtration.

Danaher acquired Trojan Technologies in 2004 into its environmental segment and water quality platform. In 2023, Danaher separated its Environmental & Applied Solutions segment through the spin-off of Veralto Corporation, which includes Trojan Technologies.

In February 2025, Veralto also acquired AQUAFIDES, a European UV treatment specialist, with the transaction expected to close in the second quarter of 2025. This deal strengthens Trojan Technologies’ position in Europe, allowing the company to improve local support and expand its UV treatment portfolio.

Trojan Technologies has four product brands, TrojanUV, Aria Filtra (Formerly Pall Water), Aquafine and Viqua.