TACS Supporting Nonprofit Success Since 1977 TACS is a vital resource for people who believe in the power of nonprofits to transform lives and communities. GROW TACS shares vital knowledge, skills, and resources with nonprofit organizations. CONNECT TACS builds nonprofit resources by connecting people to nonprofits and nonprofits to each other. UNITE TACS supports nonprofit organizations to collectively advocate for change. SERVE Since 1977, TACS has served thousands of nonprofit organizations. You are passionate about transforming people and communities. We are passionate about helping you succeed.