De-a lungul timpului companiile reprezentate exclusiv de Mainstage in Romania au furnizat servicii pentru:
- Afro Cuban All Stars
- Al di Meola
- Bela Fleck & Flecktones
- Bill Cobham
- Black Eyed Peas
- Buena Vista Social Club
- Cesaria Evora
- Chick Corea
- Children of Bodom
- Fun Lovin Criminals
- Herbie Hancock
- Jan Garbarek
- Khaled
- Korn
- Kosheen
- Larry Coryell
- Lionel Richie
- Mezzoforte
- Moonspell
- New Vork Ska Jazz Ensem.
- Nigel Kennedy
- Nightwish
- Novelle Vougue
- Omara Portundo
- Opeth
- Paco DeLucia
- Paradise Lost
- Pink
- Rhoda Scott
- Richard Bona
- Robert Plant
- Roberto Fronseca
- Roisin Murphy
- Salif Keita
- Sepultura
- Ska Cubano
- Slipknot
- Snoop Dog
- Soulfly
- Stanley Clark
- Therion
- Twisted Sisters
- Vaya Con Dios
- Victor Wooten
- Will Smith