| State | Hyperlink | Name |
|---|---|---|
| Alabama | https://sos.alabama.gov/ | -AL License Verification |
| Arizona | https://azsos.gov/ | -AZ License Verification |
| California | https://www.sos.ca.gov/ | -CA Permit Verification |
| Colorado | https://www.sos.state.co.us/ | -CO License Verification |
| Florida | https://dos.myflorida.com/ | -FL Seller Certificate Verification |
| Hawaii | There is no SOS for the state of Hawaii. https://portal.ehawaii.gov/business/ |
-HI Tax Licenses Database |
| Idaho | https://sos.idaho.gov/ | -ID Permit Validation |
| Illinois | https://www.cyberdriveillinois.com/ | -IL Tax Registration Inquiry |
| Kansas | https://www.kssos.org/ | -KS Exemption Certificate Verification |
| Louisiana | https://www.sos.la.gov/Pages/default.aspx | -LA Resale Certificate Validation |
| Maryland | https://sos.maryland.gov/Pages/default.aspx | -MD Verification of Tax Acct. Numbers |
| Minnesota | https://www.sos.state.mn.us/ | -MN Tax ID Inquiry |
| Mississippi | http://www.sos.ms.gov/Pages/default.aspx | -MS Sales Tax Acct No. Inquiry |
| North Carolina | https://www.sosnc.gov/ | -NC registration Verification of Varying Types |
| North Dakota | https://sos.nd.gov/ | -ND Sales & Use Tax Permit Inquiry |
| Ohio | https://www.sos.state.oh.us/ - gref | -OH Direct Pay Accounts (PDF) |
| Oklahoma | https://www.sos.ok.gov/ | -OK Permit Lookup System |
| Texas | https://www.sos.state.tx.us/ | -TX Taxpayer Info. Database |
| Washington | https://www.sos.wa.gov/ | -WA Business Records Database |
| Massachusetts | https://www.sec.state.ma.us/ | MA Resale Certificate Verification |