Founded in 1974, Castlet provides engineering solutions for our partners around the world.

We’re a leading provider of innovative power and control solutions, specialising in high-performance systems such as power generation, electrostatic precipitation, and manufacturing.

With decades of experience, Castlet designs cutting-edge equipment including Transformer Rectifiers, ESP Controllers and Earth Switches. We take pride in our global work, from Brazil to Australia, where we consistently prioritise reliability and efficiency.

We deliver nothing but exceptional engineering solutions and with our dedicated team, nothing is too complex.

As an employee owned company, we believe in collaboration and teamwork to provide the best possible service.