- fbo.gov
- sba.gov https://www.sba.gov/starting-business, youtube channel https://www.youtube.com/user/sba/videos
- Association of general contractors https://www.agc.org/
- UK Contractor info http://www.contractoruk.com/
- Contractor info by state
Alabama http://genconbd.alabama.gov/default.aspx
Alaska http://www.contractors-license.org/ak/ak.htmArizona http://www.azroc.gov/l_class.html
Arkansas http://aclb.arkansas.gov/rulesRegs/Pages/default.aspxCalifornia http://www.cslb.ca.gov/Contractors/
Colorado https://www.colorado.gov/dora/licensing/Lookup/LicenseLookup.aspx
Connecticut https://www.elicense.ct.gov/Lookup/LicenseLookup.aspxDelaware https://dpronline.delaware.gov/mylicense%20weblookup/Search.aspx?facility=N
Florida https://www.myfloridalicense.com/wl11.asp?mode=0&SID=Georgia http://publicrecords.onlinesearches.com/view/lid/49531
Hawaii http://cca.hawaii.gov/rico/business_online/Idaho https://web.dbs.idaho.gov/etrakit3/Custom/Idaho_LicenseSearch.aspx
Illinois https://ilesonline.idfpr.illinois.gov/DPR/Lookup/LicenseLookup.aspxIndiana https://mylicense.in.gov/everification/Search.aspx
Iowa http://www2.iwd.state.ia.us/contractor.nsf
Kansas https://ky.joportal.com/License/Search
Kentucky http://www.lslbc.louisiana.gov/contractor-search/Louisiana https://www.pfr.maine.gov/almsonline/almsquery/welcome.aspx?AspxAutoDetectCookieSupport=1
Maine http://www.dllr.state.md.us/pq/
Maryland http://elicense.chs.state.ma.us/Verification/Search.aspx
Massachusetts http://www.dleg.state.mi.us/verify.htm
Michigan https://secure.doli.state.mn.us/lookup/licensing.aspx
Minnesota http://www.msboc.us/ConsolidatedResults.cfm?ContractorType=&VarDatasource=BOC&Advanced=1
Mississippi http://www.contractors-license.org/mo/mo.htmMissouri http://erd.dli.mt.gov/work-comp-regulations/montana-contractor/construction-contractor-search
Montana http://www.nebraska.gov/sed/search/index.cgiNebraska https://www.nvcontractorsboard.com/datamart/nvscbSearchType.do
Nevada https://nhlicenses.nh.gov/MyLicense%20Verification/
New Hampshire https://newjersey.mylicense.com/verification/New Jersey https://public.psiexams.com/search.jsp
New Mexico http://www.nclbgc.net/lic_fr.html
New York https://apps.nd.gov/sc/busnsrch/busnSearch.htm
North Carolina http://www.contractors-license.org/oh/oh.htm
North Dakota http://cibverify.ok.gov/
Ohio http://www.contractors-license.org/pa/pa.htm
Oklahoma http://www.crb.ri.gov/search.php
Oregon https://verify.llronline.com/LicLookup/Resbu/Resbu.aspx?div=46
Pennsylvania http://www.contractors-license.org/sd/sd.htmRhode Island http://verify.tn.gov/
South Carolina https://secure.utah.gov/llv/search/index.html#
South Dakota http://www.dpor.virginia.gov/LicenseLookup/
Tennessee http://www.contractors-license.org/wa/wa.htmTexas https://www.asisvcs.com/services/licensing/DCOPLA/search_page.asp?CPCAT=4909STATEREG
Utah http://www.wvlabor.com/newwebsite/Pages/contractor_searchNEW.cfm
Vermont https://app.wi.gov/licensesearch
Virginia http://www.contractors-license.org/wy/wy.htm
Washington
West Virginia
Wisconsin
Wyoming