- Germany
- Amadeus, Ingolstadt
- Akropolis, Köln
- Blank & Jones, Köln
- BackBeat Studio, Berlin
- Rob Acid, Köln
- Calyx Mastering, Berlin
- Clemens Matznick, Berlin
- Consol Studios, Gladbeck
- Curse, Köln
- DJ Sammy, Stuttgart
- Dirty Green Records
- DJ Thomas Gold, Berlin
- eMi Artz, March
- Flotainment, Aachen
- FisheyeMusic, Köln
- Forward Music, Berlin
- Freudenhaus Studio, Berlin
- First Take Studios, Köln
- G Hieronymus, München
- Gibson Store, Berlin
- GregZ Music 4 Event
- Gemini Studios, Starnberg
- Heinz Rudolf Kunze
- Hansa Studios, Berlin
- Die Höhner, Köln
- Headrush, Düsseldorf
- House of Music, Winterbach
- Indiscreet Audio
- Jazzanova, Berlin
- Jochen Helfert, Augsburg
- Klangzeuger, Mannheim
- Kohlekeller Studio, Seeheim
- Lighthouse Studio, Münster
- LowSwing Studio, Berlin
- M-Pact Productions
- MonoMusic, Hamburg
- H-Peh Music Engineering
- Major & Suzan, Köln
- M-Sound, München
- Maarweg Studios, Köln
- Merging Recs, Eppenbrunn
- NHB, Hamburg
- Monoposto, Düsseldorf
- Music Factory, Bremen
- Musikpark Hannover
- Milling Sound, Hamburg
- ML-Audio, Berlin
- M-Sound, München
- Klangstube, Köln
- Patchmusic, Stuttgart
- Plakmusic, Berlin
- Prime Mastering, Salzgitter
- Per Sound, Köln
- Plattenpapzt, Düsseldorf
- Roxta Records, Giessen
- Reif Mastering, Dossenheim
- Separate Sound, Nürnberg
- S.E.A Vertrieb, Emsbüren
- Salzbrenner, Gera
- SasanMusic, Kassel
- Schule für Tontechnik
- Staggerecords, Nümbrecht
- Soundgarden, Hamburg
- Schaltraum, Ulm
- Supow Studio, Köln
- Stattwerk, Düsseldorf
- Sanhaji Music, Frankfurt
- The Cottage, Kürten
- True Busyness, Bad Oeynhausen
- Tucan Studio, Kornwestheim
- Trope Recordings, Mainz
- Thomas Gold, Berlin
- TOMO Sounds of Music
- Uli Frost Recording
- Push Music Entertainment
- Ufo Sound Studios, Berlin
- VNV Nation, Hamburg
- Valicon Music, Berlin
- Xound, Cologne
- Transporterraum, Berlin
- Oliver Lieb, Frankfurt
- Bionic Art, Köln
- DJ Blackskin, Hannover
- DailyHero Studios, Berlin
- Italy
- Industria Super Studios, Milano
- Bob Fix Mastering, Napoli
- Nautilus Mastering, Milano
- DJ Cerla, Reggio Emilia
- Cat Sound Studio, Badia Polesine
- Groove Studios, Verona
- Soulville Rec, San Giovanni
- Franco Battiato, Giarre
- Eros Ramazotti, Milano
- FM Records, Roma
- Fil Dal Monte, Roma
- Forward Studios, Roma
- Pino Pischetola, Milano
- Robertu Rosu, Roma
- Vision, Roma
- Sonoria Studio Rec
- Velvet Mastering Room Pescara
- RayAudio, Rome
- Synchronia, Rome
- Austria
- Paul Wex, Graz
- Tonstudio Recordable, Stockerau
- TSB, Steinakirchen
- BlumeProductions, Wien
- Paul Wallner, Wien
- SunshineMusic, Wien
- Birthmarkstudio, Wien
- Fachhochschule Salzburg
- Cosmix, Wien
- Oliver Varga, Wien
- dope noir records, Klaus Waldeck, Wien
- Swiss
- Musik Hochschule, Bern
- VoVox AG, Ebikon
- Artsonik Studio, Delémon
- Livio Tumelero, Lugano
- Benelux
- The Flowerhouse , Haarlem
- TJ Audio, Doetinchem
- Studio Nopo, Amstelveen
- Ootlesound
- Galaxy Studios, Mol
- SOS Recording, Ans
- Nutsville Noise Lab Leidschendamm
- Wisselord Mastering, Hilversum
- Future Presidents
- Great Britain
- DB-Studios Lincoln
- Abestkeptsecret, Tyne and Wear
- Chris Blackwell Lincoln
- Red Room Productions, London
- Paul Stacey, London
- Kwame Yeboah, London
- Thermonic Culture, London
- John Parr
- Sonnox, Oxfordshire
- Andy Mowat, London
- Wincraft Studios, James Towler, Cheltenham
- Star Delta Audio Mastering, Devon
- Luke Smith, London
- Hogarth Worldwide, London
- Robert Orton, London
- Unity Mastering, London
- Scandinavia
- Sheriff Records, Stockholm
- Manora Studios, Gothenburg
- GAS Studio, Oslo
- Mixerpult, Copenhagen
- Taburecords, Copenhagen
- France
- Rare Analog Studio, Taussat
- Master + Cesson
- Pascal Gutman, Clisson
- Est Video
- Audiovisuel Bayonne
- Down Lo Inc. Phil Greiss
- European Stage, Paris
- Kamasutra Lovers, Paris
- Magic Mastering
- All over Europe
- Home Studio, Almancil, Portugal
- Loud Studio, Coimbra, Portugal
- Sound & More, Warsaw, Poland
- Propeller Mastering, Norway
- Sud Est Production, Bukarest, Romania
- M Sound Cairo, Egypt
- Soundsquare Prague, Czech
- Radio Free Europe, Vladimir Pecha, Czech
- Branko Berkovic, Croatia
- Steve Fanagan, Ireland
- Mercury Head, TomMcCarthy, Ireland
- Zevgadellis, Greece