There are a few ways to reach us. If you want to know who serves on each of our committees, check out our committees page. Or maybe you just want to join (or leave) a mailing list. Other than that:
Gary Marsden Travel Awards: sigchi-4all@acm.org
SIGCHI CARES: sigchi-cares@acm.org
SIGCHI Conferences: sigchi-confs-team@acm.org
SIGCHI Development Fund: sigchi-dev-fund@acm.org
SIGCHI Publications: sigchi-vp-publications@acm.org
Everything else: sigchi-ec@acm.org