QPSE provides project management, engineering, procurement, environmental and construction services - in partnership with oth ... er Quanta Services companies, for pipeline and associated oil and gas production facilities. In addition, QPSE provides services to processing facilities for natural gas and refining applications. The EPC+ advantage for QPSE clients is the way that we manage the interfaces between various components of the project and provide singular contractual responsibility, under a reputable and financially strong organization. read more