Trust Company Ltd. (株式会社トラスト, Kabushikigaisha Torasuto^?) is a Japanese automotive aftermarket company specialising in performance tuning parts for cars. The company is widely known for its subbrand of tuning parts GReddy and the turbochargers under this brand.

Founded in Japan in 1977, The Trust company LTD has become a major player in automotive performance products. With popular brand names like GReddy, GREX, and GRacer, the Trust Company offers one of the widest varieties of performance automotive components. They are most well known for their complete cat-back exhaust systems with unique straight-through muffler design and bolt-on turbocharger kits.

Since 1994, the development and distribution of Trust Company products in the United States has been accomplished by GReddy Performance Products, based in Irvine, California. Trust was unable to use its own name there as it was already copyrighted, therefore they became officially known as GReddy.

In August 2008 the TRUST Company in Japan consolidated their supply of GReddy products throughout Australia and New Zealand which has culminated in the establishment of GReddy Oceania based in Sydney Australia.

Ken Gushi (具志健士郎, Kenshiro Gushi^?, born September 19, 1986) is one of Japan's top competitors in the sport of drifting. Born in Okinawa, Japan, but raised in Los Angeles, he was taught by his father Tsukasa Gushi at the age of 13 with a Toyota AE86. Ken has become the youngest competitor in both the D1 Grand Prix of Japan and the Formula Drift Championships of the U.S. when he was 16, despite not passing his driving test at the time.

Ken reached #1 qualified, but loss at top 16 tandems, in 2004 Formula Drift Championship very first round at Road Atlanta.

A few weeks after Road Atlanta, Ken won the $10,000.00 Winner-Take All International Drifting Shoot-Out at the Road & Track U.S. Sports Car Invitational (30 April 2004 - 2 May 2004), part of the Mazda and Yokohama-sponsored event at Mazda Raceway Laguna Seca. Here at this famous race course, it hosted its first ever professional drifting competition, where 14 teams/drivers competed for the right to take home a $10,000 cash prize, the largest jackpot in drifting history in the U.S.