Non-profit service organization. Thousands of people volunteer every week in their communities without the need to belong to an organization like Sertoma. They give their time on a short-term basis and contribute significant financial support to a variety of causes for the betterment of their community and people in need. The challenge ? Sertoma needs to find a way to encourage and invite the thousands of people actively involved as volunteers in communities everywhere to join in our philanthropic mission of SERvice TO MAnkind and to financially support our sponsorships while we continue to strengthen and expand our traditional club structure.