FeTu Roticulate
 FeTu is an enterprise established in 2016, based in West Yorkshire, that has developed a green energy device aimed at carbon reduction across various systems and industries. The company offers a technology known as the 'continuous positive displacement' machine, which is efficient and versatile for a range of applications. 
- Closed Loop Refrigeration
- Closed Loop Heat Recovery
- Open Loop Air Cycle Cooler
- Continuous positive displacement machine