C5 Process Group Inc. has over 60 years of experience in the design, fabrication, and commissioning of equipment for a wide range of applications within the Oil and Gas industry. Using your conditions, our team can offer optimized equipment that will meet or exceed your expectations at a price that is economically feasible. From wellhead separation to complex midstream applications and beyond, C5 has the experience and knowledge to create innovative solutions specific to your needs. Performance. On Budget, On Time.