About us. Belmont After School Enrichment Collaborative (BASEC), Inc. provides high-quality out-of-school time programming for students in kindergarten through twelfth grade in the towns of Belmont and Maynard, MA. Our goal is to foster self-confidence through enriching programming, support, and education that will contribute to each child’s social and emotional development. BASEC offers supervised, age-appropriate activities intentionally design...