In 2000 he participated in Manifesta 3 in Ljubljana, Slovenia. In 2007, he presented the exhibition One of many with the Nicola Trussardi Foundation. His longest-running collaboration is with the Nowolipie Group, an organisation in Warsaw for adults with mental or physical disabilities, to whom he has been teaching a Friday night ceramics class since the early 1990s.
In 2008 Althamer arranged for the group to wear matching overalls and take a trip on a biplane, which became the subject of a short film by Althamer’s frequent collaborator, Artur Żmijewski (Winged, 2008).
Althamer was part of the so-called Kowalski Studio at the Warsaw Academy of Fine Arts, along with many of today’s leading generation of Polish artists, including Artur Żmijewski and Katarzyna Kozyra. All without using words.’
Althamer"s large series of works "The Venetians" was exhibited in the arsenale section of the 2013 Biennale d"arte di Venezia.