This document summarizes Northern California Grantmakers' activities and engagement in 2015. It discusses the various programs, events, and services NCG provided for its members, including briefings, professional development, peer networks, and conferences that engaged over 1,600 participants. It highlights growth in membership, with 33 new members joining, and an increase in membership dues to $822,200. It also summarizes NCG's collaborations, communications, and operations over the past year.