Tolsma Tanks was founded in 1995 by Harm Tolsma. The company continued to grow and developed into a true family business. The company also invented the modern rectangular steel IBC, now known as the EnergyTender+, and further expanded its product line to include mobile and stationary fuel storage tanks in a wide range of sizes and designs. Tolsma Tanks is now the market leader in custom-made and mobile fuel storage tanks and has been part of Groeneveld Holding since 2021.