ITW Inc created ITW GSE Group by acquiring and combining some of the world best-names of aircraft ground service equipments. Hobart Ground Power has been supplying power units to US Air Force since 1946, and it was merged into ITW in 1980. In 2000, Trilectron and Air-A-Plane became ITW entities, and later AXA Power ApS of Denmark was brought into the group. In 2002 and 2005, J&B Aviation of US and Houchin Aerospace of UK were respectively acquired. At present, ITW GSE Group consists of above six best-known brands in the industry, together with its established ITW Military GSE, one of the most reputable manufacturers and suppliers in military aviation in the US.

In their best brand names, ITW GSE Group companies have been leading the industry in their fields, with products ranging from Power Supply Equipments for aircraft with both Diesel-driven Generators (Engine Drive) and Solid State Frequency Converters at 400Hz AC or 28.5V DC, to 30-120 Tons of Pre-conditioned Air Units for cooling (or heating), Aircraft Cables and Connectors, as well as PCA Hoses.

In 2007, ITW GSE Group is setting up its seventh company, ITW Airport Ground Equipment (Beijing) Ltd, a wholly-owned subsidiary of ITW in Beijing, China to produce, sell and support quality GSE equipments for the Chinese and regional market.