Company Profile

Trinity Mechanical

Rainbow Mechanical Solutions LLC, a wholly owned subsidiary of Trinity Holdings, was established in 1991, in Abu Dhabi, to cater to the increasing demand for specialized services in the region. The company is certified to ISO 9001, 14001, 45001 and API 5CT & 7-1 monogram to offer standardized services for diverse industry sectors worldwide that include oil & gas, marine, dredging, crusher, power generation, automotive and construction.

Rainbow boasts a highly experienced staff of engineers and skilled technicians to carry out repair, fabrication, manufacturing, assembly and testing of a range of mechanical components. Rainbow believes in continuous improvement, quality, hard work and dedication to meet and exceed customer expectations.

Equipped with a range of advanced and heavy-duty machines, Rainbow carries out the machining, manufacturing and reconditioning requirements of its customers. To complement the machining section, a coatings division has been formed to provide specialized coatings that enhance mechanical properties such as wear, temperature & corrosion resistance of the components. The thermal coating processes that are carried out include HVOF, Plasma and Twin Wire Arc spray. Rainbow is also licensed by Praxair to provide SermeTel® and SermaLon® coatings on industrial gas turbines and compressors.

As a part of a large engineering conglomerate, Rainbow is able to offer diverse range of services such as castings, electro plating, phosphating and heat treatment through its sister concerns. Over the years, Rainbow has earned the trust and loyalty of its customers by providing unparalleled services, establishing itself as one of the premier engineering firms in the Middle East.

Quality focus

International certifications and standards to the credit of Rainbow endorse its commitment to high quality and ethical standards. The facility is certified to ISO 9001: 2015, ISO 14001:2015, ISO 45001:2018 and US Navy standards. In addition, Rainbow has the API licenses 5CT & 7-1 for the repair, re-certification and manufacture of standard API products in the Middle East.

Rainbow is committed to the health and safety of its employees by developing safe procedures, awareness through training and providing protective equipment conforming to the various services that it offers. By adopting efficient and sustainable practices, the company has been able to minimize the impact of its operations on the environment, and the community as a whole.

Health, Safety & Environment

Rainbow is focused on providing and operating under the guidelines of Health, Safety and Environment. The management at Rainbow is committed to a policy of protecting the health and safety of its employees, clients, and others by adhering to and complying with the required HSE specifications and standards. The company takes pride in operating under systems such as ISO 14001, ISO 45001 and Abu Dhabi Occupational Health and Safety Management system (OSHAD). Rainbow will continue to take a proactive approach towards creating safe working environments and will be accountable for promoting continued safety education and training for all its employees by reviewing potential areas of improvement and ensuring thorough evaluations of all incidents.

IMS Policy


With its roots in Dubai, Trinity Holdings has evolved into a leading provider of engineering solutions in the Middle East over the past 30 years. The group has kept pace with ever changing market dynamics by expanding its product and service range, thereby establishing itself as a one stop shop for all engineering needs in numerous industries. With a growth strategy focused on geographical expansion, Trinity Holding's engineers are able to provide innovative solutions while working side by side with its customers worldwide. The Trinity Holdings profile highlights the products and services provided by each subsidiary. Please browse our company websites.

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