Transformers & Rectifiers Ltd.

Transformers & Rectifiers Ltd is a globally recognised specialist in the design, manufacture, and maintenance of liquid-filled and dry-type transformers, as well as transformer rectifiers. As an independent British engineering company, we deliver world-class power solutions to customers across international markets. With more than 75 years of engineering heritage, we have developed extensive technical expertise, advanced manufacturing capability, and a deep understanding of complex power applications. Our state-of-the-art facilities in Guildford, Surrey integrate in-house design, manufacturing, and comprehensive testing, ensuring full control over quality, performance, and compliance. We offer one of the most comprehensive product ranges in the industry, supporting a wide spectrum of power transformer and rectifier applications. From standard designs to highly bespoke engineered solutions, we address demanding operational requirements with precision and flexibility. Our products are recognised for their reliability, robustness, and efficiency. In addition to manufacturing excellence, we provide dedicated after-sales support and maintenance services, reinforcing our long-term commitment to customer performance and asset longevity. We supply leading organisations worldwide, including blue-chip companies within the defence and infrastructure sectors, operating in some of the most challenging environments. In safety-critical applications, such as the UK railway industry, we hold sole approved supplier status. Transformers & Rectifiers Ltd is certified to BS EN ISO 9001:2015, BS EN ISO 14001:2015, and BS EN ISO 45001:2018, reflecting our commitment to quality, environmental responsibility, and occupational health and safety.