- Joe Barresi, Producer / Mixer / Engineer (Tool, QotSA, Avenged Sevenfold)
- Darrell Thorp, Producer / Mixer / Engineer (Foo Fighters, Radiohead, Beck)
- Foo Fighters - 'Run'
- Avenged Sevenfold
- Juan Alderete ( Mars Volta, Marilyn Manson, Pedals & Effects)
- David Davis, Engineer (Miguel, The War On Drugs, Nick Cave and the Bad Seeds)
- Steve Evetts, Producer (Dillinger Escape Plan, Sepultura)
- Kemble Walters (Aeges, Fuel)
- Andy Bell (Ride, Oasis)
- Kelsey Gonzales (Anderson Paak & the Free Nationals)
- Aaron Harris, Drummer / Composer (Isis)
- Matt McJunkins (A Perfect Circle, Eagles of Death Metal, Beta Machine)
- Heather Baker (Krewella, NoMBe, Anti.wave)
- JP Bendzinski ( Nico Yaryan, Highlands, Crystal Antlers, Rudy De Anda)
- Josh Brooks (Robert John and The Wreck, Trivium)
- Johny Bell (Crystal Antlers)
- Hanni El Khatib
- Huey (Brazil)
- Jason St. Angelo (Black Lung)
- Armand Lance (Sprit Mother)
- Gaberiel Lopez
- De Rock Tucker, Producer
- Luz, (Y La Bamba)
- Michael Espinach (Breatherrr)
- George Madrid (Manuel the Band)
- Jahann Carbazal (Furcast, Secret Garden)
- Nani Serna (Bundy)
- J Penev, Fine Feathers Kombucha (The Path of Most Resistance)