Hammer Montessori Foundation

Hammer Montessori Foundation (EIN 27-2542742) is an active, donor-facing nonprofit based in San Jose that supports Hammer Montessori at Galarza Elementary, a K–5 public Montessori magnet in the San José Unified School District. The organization is all-volunteer and organizes fundraising and community events—such as Luna Chalk Art Festival, Walk-A-Thon, Fall Festival, Winter Bazaar, and Henry Hammer Day—to finance arts classes, assemblies, field trips, Montessori materials, and supply teachers for the school. HMF maintains regular governance and transparency practices (monthly board meetings with posted minutes, published bylaws and budgets) and has filed annual Form 990 returns; in recent fiscal years (FY2023–FY2025) reported annual revenues in the roughly $70k–$90k range that have been used to underwrite school programs and grants to Hammer Montessori.