State government; county governments; city or township governments; special district governments; independent school districts; public and state controlled institutions of higher education; native American tribal governments (federally recognized); public housing authorities/Indian housing authorities; native American tribal organizations (other than Federally recognized tribal governments); nonprofit having a 501 (c)(3) status with the IRS, other than institutions of higher education; private institutions of higher education; for profit organizations other than small businesses; small business.