Energy Services Companies (ESCOs) and an emerging group of community-based nonprofit organizations offer "one stop shopping" for energy efficiency. These entities manage the process of going green from start to finish, providing a single point of contact for everything from energy audits and project financing to executing the improvements and educating residents on energy-saving behavior. While ESCOs have traditionally worked in the commercial and industrial sectors and, as noted below, with very large public housing and multifamily developments, local nonprofits have been able to offer turnkey services to smaller developments and individual homeowners.