Tumi Bjartur Valdimarsson is a creative director/producer/editor and designer based in Reykjavík, Iceland.

He founded Brandugla Studio in 2023, focusing on environmental and social issues.

After graduating as a Screenwriter and Director from the Icelandic Film School in 2015 he worked as video news editor for STÖÐ 2 / CHANNEL 2 and honed his skills as an editor.

In 2016 he moved to Berlin to further study film at Catalyst - Institute for Creative Arts & Technology and worked as a freelancer in the meantime. During his time in Berlin he made, among other projects, a short documentary about A L’ARME! an alternative jazz festival to great reception, featured on the festivals platform.

For his BA thesis (in 2019) he wrote, directed and produced the short film FRÆNKA / AUNT and was awarded Best Director at his school for the film. The film was also selected to be screened at Ce l’ho Corto Film Festival in Bologna.

After moving back to Iceland he edited the STÖÐ 2 / CHANNEL 2 travel documentary series HVAR ER BEST AÐ BÚA? / WHERE IS THE BEST PLACE TO LIVE? directed by Lóa Pind Aldísardóttir. The series follows Icelandic families living abroad and chasing their dreams of a life outside of Iceland. He also worked on the production of the feature film SVAR VIÐ BRÉFI HELGU / REPLY TO HELGA directed by Ása Helga Hjörleifsdóttir and based on the best selling book, of the same name, written by Bergsveinn Birgisson.

Sound has always been an interest and from 2021 he has filmed and produced numerous concerts and short docs for the sound software company Treble Technologies featuring Ólafur Arnalds, Invgar Sigurðsson, Inspector Spacetime, Vintage Caravan, Hugar and Una Torfa to name a few. He also edited the television documentary ÉG SÉ ÞIG / I SEE YOU directed by Anna Hildur Hildibrandsdóttir for RÚV / NATIONAL BROADCASTER. The documentary followed Sigrún Sævarsdóttir-Griffiths, the Academic Leader of Collaborative Skills, Workshop Skills and Social Arts Practice at Guildhall School of Music & Drama. 

In 2022 he started production on the feature documentary GRÓA / SPRING AWAKENS. The film focuses on organic farming in Iceland. Tumi is the films director and producer alongside Anna María Björnsdóttir and the film was premiered in December 2024 on Sjónvarp Símans and was screened in July 2025 at Hornstrandir Film Festival the most remote film festival in the world.

In September of 2025 he with a team of three other designers finish the first prototype of a geothermal heated bench with VEITUR. The project is called TENGJA / CONNECT and centers around the concept of connecting the public outside, providing warm spaces around Iceland and bringing the mostly hidden system of geothermal heat to the surface.