United Industrial Services Co. LLC (UNISCO) founded by Towell Engineering, is the largest steel fabrication company in Oman, providing services to major End Users & EPC contractors in the GCC as well as other parts of the world. We provide Engineering, Procurement, Fabrication, Installation and Commissioning services to various core industrial sectors like Mining & Metals, Oil & Gas, Refineries, Petrochemicals, Power & Water, Building & Infrastructure, Marine, Transport and other Industrial Projects.

Product Range:
  • Aluminium Smelter plant equipment like Potshells & Super Structures, Anode Bus Bar, Anode Yoke and Steam, Aisle Removable Slabs.
  • Pressure Vessels, Heat Exchangers, Filter Separators, Injection Skids & Process Plant Skids, Boiler Pressure Parts, HRSG Modules.
  • Pipe Spools & Pipe Rack Structures fabrication.
  • RO / Desalination Plant Skids.
  • Storage Tanks.
  • Heavy structural steel fabrication - Girders, Trusses, Frames, Columns, Beams and all others decrees of works.
  • Hopper, Ducts, Stacks, Silos, Cyclones, Chimneys, Conveyors and other technological structures.
  • Melting & Holding Furnaces.
Certifications / Accreditations:
  • ISO-9001, ISO-14001, OHSAS-18001 Certificates.
  • Certified by ASME for U, U2, S, PP and R stamps.
  • Certified by American Petroleum Institute (API) for 6A, 6D, 5CT, 7.1 monograms.
  • Accredited and approved by Petroleum Development Oman (PDO), Oman Oil Refineries and Petroleum Industries Company (ORPIC), Ministry of Defense (MOD) - Oman and registered on the Joint Supplier Registration System (JSRS) of Oman for manufacturing a vast range of Mechanical & Civil products.

UNISCO nurtures a skilled work force coupled with engineering talent. The technical expertise available at UNISCO makes it possible to conform to stringent Code / Customer requirements for the specified works. We are well versed and experienced in a variety of core industrial sectors. Our high-tech modern workshops are completely integrated with CNC machines, include a Robotic production line which is a first in Oman, for ensuring high accuracies and defect free volume production.

  • UNISCO maintains state of the art fabrication facilities located in Sohar Industrial Estate with three units spread over 79,000 m 2 with a covered area of 20,400 m 2 .
  • Fabrication capacity of 4,000 MT / month.
  • Pipe Spools fabrication capacity of 30,000 inch dia / month.
  • CNC profile cutting (plasma & oxy fuel) & drilling plates up to a thickness of 200 mm.
  • Our largest fabrication single contract was for Vale International – Iron Ore Palletizing Plant for Procurement, Fabrication, Painting of Structural Steel Members & Plate Works with tonnage 23,000 MT.
  • We have fabricated and supplied critical Aluminium Smelter equipment like Superstructures & Pot Shells for various smelter plants in the world including Rio Tinto Alcan - Kitimat Smelter Modernization Project – Canada, Sohar Aluminium Smelter, Emirates Aluminium Smelter (EMAL), Ras Al Khair Aluminium Smelter (Ma'aden and Alcoa JV), Bahrain Aluminium Smelter (ALBA).
  • We have fabricated & installed one of the largest Dry Dock Gates in the world, to Oman Dry Dock Co. S.A.O.G, Duqm with tonnage 7500 MT (2 Sets).

United Industrial Services Co.
PO Box 1667,
PC 131, Ruwi, Muscat
Sultanate of Oman