Doina Engineering & Construction was established by Gerry Doyle in 2000 and is a wholly Western Australian-owned company. It offers all types of steel fabrication at its Kwinana workshop along with service & repairs and replacement of heavy duty earthmoving equipment and fixed plant parts. The company specialises in the manufacturing and assembly of all types of replacement parts for stockpile material handling machines for major mining companies throughout Australia and includes complete mine site final assembly. Its clients include the big mining companies, notably BHP, Rio Tinto and FMG, plus major engineering firms such as thyssenkrupp, Monadelphous, RCR Tomlinson and UGL.