Suggestions that I don’t know what to do with:
Coates, Dan - his name comes up a lot, but he strikes me as being primarily an arranger
Keveren, Philip - although he writes original piano compositions, he;s most famous for his arrangements which span multiple genres. To me, he seems like a piano pedagogue more than anything else.
Olson, Kevin - his compositions seem very contemporary, but he seems to be primarily a classical piano pedagogue
Souther Richard - He has two solo piano albums under the name Douglas Trowbridge. As far as I can tell, sheet, music for these pieces is not readily available, so I’m not inclined to include him here (although one or two of the pieces may be included in some Narada Piano sampler score books). From his bio: “Richard Souther is a composer, producer, arranger, sound designer, and keyboardist whose recordings span contemporary instrumental, sacred, electronic, jazz, and classical/crossover music.”
Tesh, John - most of his compositions are no solo piano