The very next month, the name TOMOS (TOvarna MOtornih koles Sežana) appeared in the company documents for the first time.

In October 1954, the Yugoslav government started to build the Tomos factory in Koper, the seaside industrial center of Slovenia.

[5] Production in temporary facilities started in 1955 and the factory was officially opened in 1959 by Josip Broz-Tito, the President of Yugoslavia.

[1] In the 1980s bicycles made by the dutch company Sparta were sold by Tomos und its own brand.

[6] Tomos remained a state-owned enterprise as Slovenia, with its close ties to Austria and Italy, was first to gain its independence as the Socialist Federal Republic of Yugoslavia broke up in the early 90s.

Tomos became the longest surviving moped factory in The Netherlands until production ended in 2009 due to the fact production- and labor costs are lower in Slovenia.

Beginning in 1959, Tomos began producing Citroën automobiles under license at the Koper plant, and selling them in the Yugoslav market.

[11] In 1981, Cimos began to produce a specific model, the Dak, an enclosed cargo utility vehicle, very similar to the fourgonette.

[11] Citroën did not allow Cimos to export these utility vehicles, and this rift led to the French firm ceasing delivery of parts to its Yugoslav partner by 1985, dooming the joint venture.

[11] At the brink of the 1970s, Tomos started preparing for the production of "automatics" of its own design, as the market was increasingly interested in such type of motorcycles and the components produced abroad were more and more expensive.

Its successor, Automatic A3 was made in 1973 when they launched the new, modernized production line with automated machines for framework welding.

The latter type was particularly popular among the young, which is why Tomos started producing special variants of these mopeds with raised handlebars, seat with back support, side bags and a lot of chrome.

After 1973 all motorcycles and bicycles with motors attached produced by Tomos were equipped with in-house manufactured engines.

The market hit its zenith in 1979 as gas prices were at a premium and shortages were common due to a change in OPEC policy.

Tomos USA was started in Spartanburg, South Carolina, in a new office and warehouse complex of over 24,000 sq ft (2,200 m2).

In 2004, Slovenia was admitted into the European Union and a contract was signed with Germany's BMW to produce component parts for some of its units, that production continues today from Koper.

Tomos returned to the US market with two new mopeds, the redesigned Sprint with classic details, and the all-new Racing TT, but went bankrupt in 2019.

However, a problem in translation had caused a misunderstanding, and the company later confirmed it was not ending sales, but instead outsourcing parts of the production.