Tom Fisher is a sound artist and musician based in London.

Working primarily under the name Action Pyramid, his projects vary from site-specific sound installations for galleries and museums, to experimental radio works, documentary film and music. His work has been featured at LUX, Tate Modern, Tate Britain, Cafe OTO, The Grant Museum of Zoology, London Transport Museum, Project DIVFUSE (UK), Bibliothèque Nationale de France & Jardin des Plantes (FR), the Fjuk Art Center and Husavik Whale Museum (IS). He is the recipient of the 2021 Phonurgia Nova Award in the Field Recording category. He has also led numerous workshops in collaboration with University College London and University of the Arts London and participated in artist residencies at RIVERSSSOUNDS (Online/Ukraine/Romania), Fjuk Arts Centre (Iceland), and BioArctica (Finnish Arctic).