Manufacturers
Currently Tillig is the largest company to make TT scale rolling stock. Most TT scale track today is also made by Tillig, which offers both standard model railroad track and an integrated roadbed track using Kato's Unijoiner system. But the growing interest for the scale has led to more manufacturers during the last few years, and the scale has also attracted some of the big actors within other scales. Roco launched their first TT products in 1998, and has a small but growing line. Smaller producers like Kuehn and Beckmann have widened their product lines in recent years, just like Hungarian Deak Modelsport and Czech Rubikon and KPA. Fleischmann and Arnold both created single TT products, but have not continued to develop any new products. Russian Peresvet is another manufacturer who produces TT scale models, mostly Russian prototypes. German low-price manufacturer Piko has also started with a TT line, focusing mainly on German stock.
There is a larger variety in the accessories market, where some companies have a long-time involvement with the scale and others recently started to support it as well. Prototypes are almost only German (with a focus on the former East Germany) and some Eastern European models. Auhagen is a major supplier of models of Continental buildings. Triang produced a Continental/French range but it was only made for a very short while.
One current manufacturer of British TT is 3 mm Scale Model Railways who supply updated GEM and BEC TT kits as well as a large range of Brass Etch and Resin body kits.
American manufacturers include Possum Valley Models (kits), Sleepy Hollow/Gold Coast (ready to run and kits, Costal Engineering (kits) DnS TT Track and others.
Various cheap battery toy train sets, typically with plastic track, can also be found in TT gauge.
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