TGIS Aviation

TGIS Aviation is an independent engine technical and commercial advisory company. It works for airlines, lessors and financiers, and it says it supports all commercial engine types. The company was founded in 2002 by directors Trish Gray and Ian Smith.

The firm covers the full life of an engine, from acquisition and maintenance to redelivery, valuation and lease review. It helps clients control costs and protect asset value. It states that it does not trade engines or engine parts, so its advice stays unbiased. The team includes powerplant specialists and expert witnesses.

Its services include engine management, off-wing engine management with CAMO support, and continuing airworthiness management. It also offers expert witness work, drawing on over 40 years in the industry. The services page lists Optima, an engine fleet optimisation service, and aircraft management services.

TGIS received its CAMO approvals from the CAA and overseas territories in 2024. The company says this approval gives buyers and operators extra confidence in records and maintenance work. It describes the approval as independent and audited. It says it has worked with the airline industry on complex projects around the world.

The core team and a global network of associates have worked for engine makers, airlines, operators, lessors, financiers and asset management firms. The site shares news and engine insights, has case studies, and offers a mailing list and a contact form so visitors can speak to an expert. It also has a careers page.