Ez, I'm a Moving Shadow/Shogun/Renegade Hardware man myself, massive lables with some massive dark sounds.
Some personal favorites of mine, whether it's dropping it in a mix on a big system (Valve Sound System, anyone :D) or listening at home, they're quality artists for sure.
Noisia
Phace
Teebee & Calyx (their recent EP 'Warrior' is MASSIVE innit)
Bulletproof
Inside Info (not very mainstream, if you like Pendulum check this guy out, he's been featured on Radio1 Xtra LOADS of times)
Ed Rush & Optical (need I say more?)
Personally I'm not a fan of Pendulum's work nowadays, they've taken a very Pop-ish route to drum n bass, trying to make it more main stream with their live band doodads. Although I still worship Rob like a god... such a sick engineer in that krew. The reece in their 'Bacteria' remix still makes me wanna brock out.