Private institutions of higher educationCity or township governmentsNative American tribal governments (Federally recognized)Public housing authorities/Indian housing authoritiesNonprofits that do not have a 501(c)(3) status with the IRS, other than institutions of higher educationSpecial district governmentsPublic and State controlled institutions of higher educationFor profit organizations other than small businessesNative American tribal organizations (other than Federally recognized tribal governments)Small businessesNonprofits having a 501(c)(3) status with the IRS, other than institutions of higher educationCounty governmentsIndependent school districtsUnrestricted (i.e., open to any type of entity above), subject to any clarification in text field entitled "Additional Information on Eligibility"State governments