A.biro was established in 1999 by Miloš Florjančič. It initially comprised a team of three architects (Miloš Florjančič, Matej Blenkuš and Jerneja Fischer Knap) and later grew to include others. The current team is headed by Matej Blenkuš and includes architects Katja Cimperman, Anja Cvetrežnik and Grega Valenčič and architecture students Tadej Rezar, David Klobčar and Matic Banko.
A.biro engages in a wide range of projects in a number of fields, although the studio is currently not involved in urban planning. The team works on around 15–20 architectural projects annually and is active throughout Slovenia. A.biro's approach highlights a deeper understanding of the space in which a project is situated and seeks to draw on the meanings and nuance of specific spaces which give their work a sense of permanence.
A.biro's projects have had a visible impact on the visual landscape of Ljubljana: the Šentpeter garage building is the main indoor parking and retail facility at the Ljubljana Clinical Centre, the Vertikala office building and the Vogal multi-purpose building greet motorists entering the city centre from the north, and the Šmartinka multi-purpose building is a key landmark in the open space just east of the city centre. It was featured in the Phaidon Atlas of Contemporary World Architecture.
The studio is also active in the residential sphere, with designs for both multi-unit structures (the Jelen apartments in the historic centre of Kranj) and single-family homes (House F and House H).
A.biro received the prestigious Plečnik Award for the Grosuplje Public Library in 2007.
At the end of 2015, the Planica Nordic Centre was inaugurated. The multi-use winter sports facility was the work of several studios: Studio AKKA (landscape, including the layout of infrastructure and cross-country lanes), STVAR Architects (service and performance buildings, pavilion), and A.biro, which redesigned the ski jumps and bridges. Their work on the project received the 2015 TREND Award for outstanding achievements in visual creativity and was nominated for a number of other awards, including the Mies Van Der Rohe Award.
A late summer view of a few of the ski jumping hills in the Nordic Center Planica, the sports objects designed by A.biro, the landscape architecture AKKA Studio, 2014. An airial view of the Nordic Center Planica, designed by Studio AKKA, A.biro and Stvar Architects, 2015. A newly-constructed pavilion opened in 2016 houses also a Planica Museum. In the background, on the left side the 'Gorišek Brothers Ski Flying Hill' built in 1969, while the 'Bloudek Giant' is seen on the right-hand side. The latter was finished in 1934, when it also claimed its first world record. The Nordic Centre Planica with the Čaplja service building designed by the STVAR architects, 2016 The Nordic Centre Planica complex opened in 2015, the service and performance buildings designed by the STVAR architects, 2016 Ski jumping hills in Planica, a complex being designed by Studio AKKA (landscape architecture) and A.biro (ski jumps and bridges), with the adjacent buildings by STVAR architects, 2015