MRO & Support Services
Trusted worldwide to keep military fleets and platforms mission-ready.
With more than 70 years of engineering excellence, Thomas Global Systems delivers high-reliability MRO and sustainment services across both commercial and defense sectors.
From avionics upgrades and CRT-to-LCD conversions to ruggedized military systems support, our in-house OEM capability provides end-to-end service that reduces lifecycle costs, prevents downtime, and extends platform life. Backed by AS9100D and ISO 9001 accredited facilities in California and Australia, we deliver proven, certified solutions — on time, in scope, to spec.
OUR CAPABILITIES
Maintain mission readiness and extend platform life in the toughest environments. Our defense sustainment programs are engineered to military standards, combining ruggedized hardware design, secure communications support and long-term sustainment planning. We qualify systems to DO-160G, DO-178C, DO-254 and MIL-STD requirements, manage sovereign content and security accreditation, and ensure full lifecycle support for critical mission systems
Enquire NowSustainment of Mission-Critical Electronics
Keep critical systems operational for longer. We maintain and upgrade avionics, mission electronics and ruggedized computing systems to ensure long-term readiness for land, sea and air platforms.
Cross-Domain Solutions Support
Protect classified networks with assured compliance. Our sustainment programs extend the life of secure, accredited CDS systems, maintaining certification against evolving defense standards.
Simulation & Training Systems Support
Train smart and stay ready. We provide lifecycle support for immersive tactical training environments — from software updates to hardware upgrades — keeping operators mission-ready without costly live training.
Your Prime Systems Integrator
Scale sustainment to your program needs. With full OEM engineering and manufacturing capability, we adapt support solutions to complex custom projects, high-volume sustainment programs, and urgent operational requirements.
Proven Qualification & Certification
Reduce program risk with certified compliance. Defense customers benefit from our experience in achieving DO-160G, DO-178C, DO-254 and MIL-STD qualifications within AS9100D and ISO 9001 facilities.
Our Products
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EFI-650 Flight Display
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70+Years of delivering highly-engineered solutions for Aviation & Defense
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10+Formal accreditations including ITAR, FAA, ISO 9001, CAGE Codes, AS9100D and more
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2Advanced Manufacturing facilities in Southern and Northern hemispheres for global delivery
With global representation, we deliver MRO and support services to customers from our facilities in Irvine, California and Sydney, Australia.
- IRVINE , CALIFORNIA
- SYDNEY, AUSTRALIA
- OFFICES
