Dell is on board for a fourth consecutive year while denim brand Replay is returning after a four-year absence. They will be joined by first-time sponsors Hyundai and Swatch.
Last year's awards were sponsored by Dell and Suzuki, with Calvin Klein Jeans as the digital sponsor.
This year, partners will have a presence on the on-air billboards, all marketing and press materials, on the dedicated MTV EMAs microsite (www.mtvema.com) and on-the-ground consumer promotional activities in Belfast.
Hyundai is planning to introduce its new Veloster sports coupe as the "official wheels" of the awards, while Swatch hopes to build its links with fashion.
The Dell deal was negotiated with Jonathan Charnock at MediaCom. Baz Shariff at MPG was behind the Hyundai deal and Swatch and Replay were agreed directly with clients Roberto Costa and Lorenza de Mattia respectively.
The awards will be broadcast live on MTV on 8pm UK time on Sunday 6 November.
Dave Sibley, executive vice-president, Viacom Brand Solutions International, said: "The MTV EMAs combine tremendous heritage value with contemporary relevance and appeal."