Contemporary Classical Musicians
 

I'm a big Philip Glass and Nicolas Frahm fan. Anyone else a fan of contemporary classical and which artists?

Oh yes, I'm actually a true fan of Nils Frahm, maybe because he's got that jazz and electronica sound combined with the classical.
Philip Glass is a pure mastermind, just like Ludovico Einaudi. Despite of their age they're working hard on creating new music.
Moreover Ólafur Arnalds and Helen Jane Long are pretty inspiring, and one of the best contemporary classical composers.

By the way, Ólafur Arnalds and Nils Frahm have worked together. I think those two complement each other.
The result is amazing, it's worth a listen.

Brian Ferneyhough and James Dillon. I like their feeling of organised chaos!

Two of my all-time favourites of any genre, G.F. Hass, and Tristan Murail. I love Spectral Music, it is simply gorgeous!

I have a deep love for Arvo Pärt.

How about Brian Ferneyhough?

I like John Adams' compositions- he makes modernism accessible, even catchy, without being coarse or over simple. Unlike most modern music he has real passion and feeling, sometimes rising to epic proportions. His music is advanced enough to be innovative and original, but familiar enough to be enjoyable and satisfying.

My introduction to classical was the influence it had on works like Popol Vuh's Hosianna Mantra and on Klaus Schulze of the Berlin School of ambient music. I am also a tremendous fan of post-war minimalism like Riley, Steve Reich, Glass and Moondog's 1969 self-titled LP.

But in the sphere of modern classical, those works led me to Ólafur Arnalds, Nils Frahm, and Ryuichi Sakamoto's ambient compositions, as well as the similar works by A Winged Victory for the Sullen, Dustin O'Halloran, Stars of the Lid, The Dead Texan, Labradford, Bedhead, Clint Mansell, and select works by Cinematic Orchestra.

Most of these occupy the territory of ambient music but the element of modern classicism cannot be denied.

I'd love to hear more composers like these.

I like your qualifying of TCO, haha. A friend of mine introduced me to them in high school via Ma Fleur, and I dug into the rest of their discog thinking I'd find more stuff like it. It worked out though, 'cause it turned out I like downtempo too. I think they were actually my gateway to Ninja Tune.

My answer to the OP question really depends on your definition of "contemporary," as the majority of composers I listen to are post-Stravinsky, but probably a good half of them are pre-WWII. The two post-war pieces I've probably been into the most lately are Kirchner's Piano Trio and Reich's The Desert Music.