Ben Collins-Sussman has been a sysadmin and programmer for many years, and is one of the original designers and authors of Subversion. He currently works for Google in the Open Source Programs Office.
Brian Fitzpatrick has been involved with Subversion in one way or another since its inception in early 2000. He is currently the Chicago Engineering Manager for Google.
C. Michael Pilato is a core Subversion developer, and a leader in the Subversion community. He is currently employed by CollabNet, where he spends his days improving Subversion and other tools with which it integrates.