National Gallery of Iceland, Reykjavík:

Seven Metres, 1992
Memories, 1981
Glassrain, 1984

Reykjavík Art Museum:

Zero Degrees, 1990
Cosmos II, 1991
Time-Relativity-Cosmos, 1993
That Day …  , 2001
Tortími / Termining, 2008
Future Cartography XI, 2021
Rúmmetri IV / Cubic Metre IV, 2004
Einn Rúmmetri / One Cubic Metre, 1994
Transient – Water  /  Transient – Earth, 2011

The Living Art Museum, Reykjavík:

Forest (II), 1983
Desolation (II), 1987
Time/Pavilion, 1987
Time Concrete, 1987
Relativity, 1998
Afstæði, 1998
A Proposition How to Change the Icelandic National Costume … , 1974
Golden Car-II, 1976
Study-Book, 1978
Items (VIII), 1983

The University’s Art Museum –
Universty of Iceland:
Tillaga að breytingu á íslenska þjóðbúningnum í tilefni ellefuhundruð ára frá landnámi Íslands of fullveldisfagnaðar Háskólastúdenta 1. Desember 1974

Icelandair Art Collection, Reyjavík:

Sketch of an Image of the Refraction of Light-I, 1991
Two Metres (Black and White Metres), 1992
Afstæði, 1998

Icelandair Hotel Reykjavik Natura:

Reflections Tetralogy, 2011

Kópavogur Art Museum—Gerðarsafn:

Waterfall, 2004
Waterfall, 2004

LÁ Art Museum /Listasafn Árnesinga, Hveragerdi:

Desolation II, 1987

Akureyri Art Museum:

Balance XX, 2016

Safnasafnid — The Icelandic Folk and Outsider Art Museum

Svalbardsströnd:

Items (VIII), 1983

Terminated II, 2007

Balance VII, 2016
Balance VI, 2016

International Museum of Contemporary Sculpture – MIEC, Santo Tirso, Portugal:

Future Cartography XII, 2023

Water Balance IV, 2023

Gallerie Zona, Florence:

Study-Book, 1978

International Mail Art Archive, Pisa:

Peace – Handle With Care, 1980

Centro Internazionale Multimedia, Salerno:

Time Concrete, 1987

Kreditanstalt für Wiederaufbau, KfW

Frankfurt am Main:

Relativity, 1998

Art Center Hugo Voeten

Herentals, Belgium:

Waterfall – Dettifoss Endangered, 2004

Kuopion Taidemuseo, Kuopio:

Items (VIII), 1983
Kuopio Observatorium—Book, 1995

Henie Onstads Kunstcenter, Oslo:

Items (VI), 1981

The Lafuente Archive, Madrid:

Items (I), 1978

La Exelentísima Diputación Provincial, Galicia:

Forest II, 1983

Studio Levy, Madrid:

Air-Mail, 1978

The Metropolitan Museum of Art, New York:

Future Cartography III, 2013
ITEMS XII, 2010

Museum of Modern Art, New York,
(Franklin Furnace coll.):

Study-Book, 1978
Items (VIII), 1983
Forest (II), 1983