Photo: ©DarkoTodorovic, CC BY-SA 3.0, via Wikimedia Commons⁸

Michael Breidenbruecker

Austrian entrepreneur (born 1972)

Michael Breidenbrücker (born 6 January 1972) is an Austrian entrepreneur, technologist and artist whose work has spanned three technology cycles from the late 1990s. He is best known as co-founder of Last.fm, founder of RjDj, Founding General Partner of 3-A.vc, and co-founder of Raidical.one.²

From Wikipedia’s article on Michael Breidenbruecker (this version), CC BY-SA 4.0.

Born Jan 6, 1972.¹

About

He has worked with musical artists such as Hans Zimmer, Imogen Heap, Air and Booka Shade. In 2011 he produced Inception The App with Christopher Nolan and Hans Zimmer, which reached number 5 in the US App Store charts.

From Wikipedia’s article on Michael Breidenbruecker, shared under CC BY-SA 4.0.²

Companies

RjDjFounder⁷

Early life and education

Date not recordedUniversity of Applied Arts Vienna³

Career

Occupation: businessperson.⁵

Date not recordedFounded RjDj⁴

Last.fm

In 2002, Breidenbrücker co-founded the Internet radio site for streaming music Last.fm Ltd. and managed it as CEO from 2002 until 2005. Using a recommend system called Audioscrobbler, Last.fm records users' different musical tastes and makes recommendations. The site also offers different social networking features, allowing users to share their tastes. In May 2007, the company was acquired by CBS Interactive for US$280 million (UK£140 million). In 2003, Last.fm received an Honorary Mention in the Prix Ars Electronica in the category Net vision.

RjDj

In 2008, he founded RjDj (Reality Jockey Ltd.), a London-based music technology startup pioneering augmented sound and reactive music. RjDj produced and distributed a network of mobile applications that composed real-time ambient soundtracks based on the listener's environment. Writing for Wired in 2009, author and futurist Bruce Sterling described RjDj as "augmented sound design, under-rated", adding: "Maybe someday 'silent augmentation' will be classified like silent cinema."

Mobile applications created with RjDj:

RjDj App

Trippy Replay

Rj Voyager

Inception The App

Dimensions The Game

Situ

The Dark Knight Rises Z+

RjDj ceased trading in 2013. In 2016, a revised edition of the RjDj App was released under the name "Hear", which reached the top 10 in the App Store Health & Fitness charts.

Speedinvest

In 2011, Breidenbrücker joined the founding team of the Vienna-based venture firm Speedinvest, initially serving on the investment committee. In 2015, he became General Partner and founded Speedinvest Studio, a company builder based in Dornbirn, Austria, developing digital startups in partnership with corporate partners across traditional industries. The studio operated until 2025.

3-A and Raidical

In 2026, Breidenbrücker co-founded 3-A.vc, an early-stage venture fund based in London, and Raidical.one, pioneering the concept of lean exits, which also operates Raidical.academy.