Special Technical Services L.L.C. (STS) is a multidisciplinary contracting group based in Muscat, Oman, established in 1980. The company specializes in construction, fabrication, manufacturing, and maintenance services for the energy and industrial sectors, including oil & gas, refinery, petrochemical, and aluminum markets.

As a 100% Omani company, STS has extensive expertise in managing complex projects across civil, mechanical, electrical, and instrumentation disciplines. Its service offerings include turnaround and shutdown services, manufacturing, cladding, HDPE lining, roto-lining, tank design and construction, and enhanced oil recovery (EOR) solutions. STS operates advanced manufacturing facilities certified to various industry standards, covering a total area of approximately 210,000 square meters across Oman, UAE, and Saudi Arabia.

With a workforce of over 10,000 employees, STS is recognized for delivering specialized oilfield maintenance and construction services throughout the MENA region and beyond, including operations in Bahrain, UAE, Saudi Arabia, Kuwait, Qatar, and Australia.