1999 – Pacific Christian College (now Hope International University) and San Diego Christian College joined the GSAC, effective in the 1999–2000 academic year. 2001 – The Master's College (now The Master's University) joined the GSAC, effective in the 2001–02 academic year. 2011 – Cal Baptist left the GSAC and the NAIA to join the Division II ranks of the National Collegiate Athletic Association (NCAA) and the Pacific West Conference (PacWest), effective after the 2010–11 academic year. 2012 – Azusa Pacific, Fresno Pacific and Point Loma Nazarene left the GSAC and the NAIA to join the NCAA Division II ranks and the PacWest, effective after the 2011–12 academic year. 2012 – Arizona Christian University joined the GSAC, effective in the 2012–13 academic year. 2014 – William Jessup University (now Jessup University) joined the GSAC, effective in the 2012–13 academic year. 2015 – Concordia–Irvine left the GSAC and the NAIA to join the NCAA Division II ranks and the PacWest, effective after the 2014–15 academic year. 2015 – Menlo College joined the GSAC, effective in the 2015–16 academic year. 2015 – Lewis–Clark State College joined the GSAC as an affiliate member for men's and women's tennis, effective in the 2016 spring season (2015–16 academic year). 2017 – Biola left the GSAC and the NAIA to join the NCAA Division II ranks and the PacWest, effective after the 2016–17 academic year. 2017 – Lewis–Clark State left the GSAC as an affiliate member for men's and women's tennis, effective after the 2017 spring season (2016–17 academic year). 2017 – Life Pacific College (now Life Pacific University) joined the GSAC, effective in the 2017–18 academic year. 2018 – Ottawa University–Arizona joined the GSAC, effective in the 2018–19 academic year. 2022 – Westmont announced that it will move to the NCAA Division II ranks and join the PacWest, effective beginning the 2023–24 academic year. 2022 – Menlo announced that it will move to the NCAA Division II ranks and join the PacWest, pending approval will be effective beginning the 2024–25 academic year. 2023 - Jessup announced that it will move to The NCAA Division II ranks and join the PacWest, pending approval. Member schools Current members The GSAC currently has ten full members, all are private schools: Notes Affiliate members The GSAC currently has two affiliate members, both are private schools: Notes Former members The GSAC had seven former full members, all were private schools: Notes