The Swedish architects and designers Mårten Claesson, Eero Koivisto and Ola Rune opened their studio in Stockholm, in 1995.

Commissions for the practice include The Inde/ Jacobs Gallery in Texas, K5 Hotel in Tokyo, Zander K Hotel in Bergen, Sfera Building in Kyoto, The Administrative Service Centre in Novy Sanzhary, Ukraine and a number of private houses in Sweden and abroad. Their architectural work has been exhibited at the Venice Architecture Biennale.

As designers they work with Arflex, Artifort, Boffi, Capdell, Cappellini, Fontana Arte, Kasthall, Living Divani, Orrefors, Paola Lenti, Studio TK, Swedese, Tacchini and Time & Style amongst others.

Their designs have won awards including Designer of the Year 2011 and 2014 by Elle Décor Italia, Red Dot “Best of the Best” 2013 and 2014, The Bruno Mathsson Prize 2015 and Interior Designer of the Year by Elle Deco Japan 2021.

In 2021, King of Sweden Carl XVI Gustaf presented them with The Prince Eugen Medal for outstanding artistic achievement in architecture (2020).