Tatuus Racing SpA was established in Concorezzo in 1980. Its earliest cars competed in small-displacement classes such as the 500cc and 1000cc Formula Monza championship, in which founder Sandonà was himself a competitor. Luca Melgrati won the first championship for a Tatuus chassis in 1983 in the Formula Panda Monza series and repeated the achievement in 1985 and 1986.
In 1988 Tatuus was contracted to build cars for the new Formula König. That inaugural season was won by a then-unknown Michael Schumacher, a result that brought early international recognition to the marque. Tatuus also operated a factory team in the Italian Formula Three championship between 1989 and the mid-1990s, fielding drivers including Niko Palhares and Tony Kanaan before redirecting its focus entirely toward chassis manufacture.
Gianfranco De Bellis became co-proprietor in 1993. In February 2017 De Bellis and Sandonà sold a majority stake to Wisequity IV, a closed-ended fund managed by private equity firm Wise Sgr. Under this new ownership Tatuus acquired engine producer ATM-Autotecnica Motori in November 2017 and a 75% stake in equipment manufacturer Breda Racing in November 2018. In May 2023 the TEC Racing investment fund acquired the group, and the summer of 2024 saw the completion of the YCOM acquisition. Further expansion in 2025 brought in Next Solution Technologies, Birelart, IAME, and Kart Republic, after which the holding adopted the name Korus in October 2025. In January 2023, Tatuus had relocated its operational headquarters to a purpose-built facility in Lainate.
The pivotal chapter in Tatuus history began with Formula Renault. The Tatuus RC95, introduced for the 1995 season, formed the basis of both a factory team programme and widespread customer supply across European championships. Successes came rapidly: Enrique Bernoldi won six of ten races to claim the 1996 Eurocup Formula Renault title, while customer Tatuus chassis simultaneously won the British, German, and French Formula Renault championships that year. In 1997 the factory team achieved a one-two in the European championship through Jeffrey van Hooydonk and Max Busnelli.
British championships proved a particular Tatuus stronghold. Marc Hynes won the 1997 British title in a customer car, and Antônio Pizzonia dominated the 1999 campaign, with Tatuus chassis winning twelve of thirteen races. The French championship, contested against home manufacturers Mygale and Martini on their own soil, was harder fought, but Lucas Lasserre ultimately delivered the 1999 title.
The Tatuus FR2000 debuted in 2000 and served multiple Formula Renault championships across Europe until 2010. The FR1600 variant followed in 2002 for smaller-displacement series, and the FRV6 was introduced in 2003 for the Formula Renault V6 Eurocup. By this period the racing team had ceased operations, and Tatuus had fully committed to the identity of a professional chassis manufacturer.
Tatuus entered the USF2000 series in 1997 with a factory team, scoring its first race win through Rino Mastronardi at the St. Petersburg street circuit. The manufacturer finished second in the manufacturers' standings in that debut season. Factory driver Ryan Hampton placed second in the 1998 standings, and customer entries continued thereafter.
From 2017, Tatuus became the spec chassis supplier for the revamped U.S. F2000 National Championship, and a more powerful derivative was introduced as the Pro Mazda Championship spec car from 2018. Today all three tiers of the USF Pro Championships — USF Juniors, USF 2000, and USF Pro 2000 — use Tatuus machinery, making the manufacturer central to the Road to Indy pathway leading to IndyCar.
Tatuus was contracted by Toyota New Zealand to design the Toyota FT40, which was introduced to the Toyota Racing Series in 2005. The car served the championship for ten seasons, with its final race, the New Zealand Grand Prix, won by Nick Cassidy in 2014. The successor Tatuus-built Toyota FT50 was introduced for the 2015 season, featuring an upgraded six-speed Sadev gearbox in place of the previous five-speed unit.
The 2014 Italian Formula 4 Championship, the first FIA Formula 4 series to run under the new regulations, used the Tatuus F4-T014 powered by a detuned Formula Abarth engine limited to 160 hp. The ADAC Formula 4 adopted the same car in 2015, and the British BRDC Formula 4 Championship followed. Over subsequent years the Formula 4 ecosystem expanded to include Spanish F4, F4 UAE, F4 Brasil, F4 SEA, F4 CEZ, F4 Saudi Arabia, F4 NACAM, and several other championships, all using Tatuus machinery.
The Formula Regional category brought the Tatuus T-318 from 2018, a car used across regional championships in Asia, Europe, Oceania, the Middle East, and Australia. The inaugural 2019 W Series all-female championship used Alfa Romeo-powered F3-specification T-318s, all operated by Hitech Racing. The second-generation Formula Regional car, the T-326, debuted in August 2025, was unveiled at Monza in October 2025, and made its competitive debut at the Formula Regional Middle East Trophy at Yas Marina in January 2026.
A partnership with MotorSport Vision established during the 2010s led Tatuus to supply the BRDC British Formula 3 Championship and later the GB3 and GB4 championships. Two new collaborative models, the MSV-GB3-025 and MSV-GB4-025, were announced in the summer of 2024 and began competing in their respective championships in 2025.
Tatuus has won championships across North America, Europe, Asia-Pacific, and the Middle East and supplied cars for the career beginnings of drivers including Michael Schumacher, Antônio Pizzonia, Nick Cassidy, and many others. Its role as a primary Formula 4 and Formula Regional supplier has made it a near-universal first step for drivers seeking FIA Super Licence points in the modern junior ladder.