Established in 2011, GAMCO started with civil construction works and steadily expanded into
government, utility, industrial, and infrastructure sectors across Oman.
Through strong partnerships with leading companies such as Veolia and other major
operators, GAMCO diversified into civil, mechanical, electrical, GRP, shutdown, and manpower
supply services.
Today, GAMCO is a trusted contractor contributing to Oman’s growth and development
2026
Continued industrial growth with civil works for Sohar International Urea & Chemical Industries, expanding into fertilizer and chemical sectors.
Expanded into national infrastructure and government projects with Majis Industrial Services, ONEIC Quriyat Desalination Plant, ROP projects, Royal Hospital Muscat, and multiple manpower and equipment contracts.
2025
2024
Secured major power and desalination projects including Barka IV (O&M), Duqum Power Company, and Maa Kuthari Global.
Entered heavy engineering and shutdown works with Bahwan Engineering, Renco (OLNG Sur), Oman Sustainable Water Services, Nuberg Industries, and multiple industrial contracts.
2023-2024
2022-2023
Diversified into civil, mechanical, electrical, GRP, and industrial works with Sharqiyah Desalination, SIDEM, Fisia Abeima JV, Global Chemical, ECO Vision, and Innovative Technology.
Expansion in desalination sector with manpower supply to Barka IV, Veolia FNS, Muscat City Desalination, RIMA Water, and Hyflux Water Services.
2021-2022
2019-2020
Manpower supply contract with SUEZ LLC. Turnkey delivery of confidential project for SIDEM Veolia.
Subcontractor of SIDEM Veolia
for civil construction and
manpower supply
2018
2014-2015
Ministry of Education School project (Seik School Al Kamil).
Maintenance and manpower supply contract with Bhawan Veolia Water LLC (BVW).
2013
2012-2013
Ministry of Higher Education project (Sur College of Applied Sciences) extension project.
Started company with civil construction work for residential and non-residential buildings.