Below are all 50 states’ business entity search & corporate record search pages, as well as the District of Columbia and Puerto Rico:

State DepartmentBusiness DivisionBusiness Entity Search
Alabama Secretary of StateAlabama Business ServicesAlabama Business Entity
State of AlaskaAlaska Division of Corporations, Business & Professional LicensingAlaska Corporations Database
Arizona Secretary of StateArizona Corporation CommissionArizona eCorp Business Entity Search
Arkansas Secretary of StateArkansas Business & Commercial ServicesArkansas Business Entity Search
California Secretary of StateCalifornia Business EntitiesCalifornia Business Search
Colorado Secretary of StateColorado Business OrganizationsColorado Business Database Search
Connecticut Secretary of StateConnecticut Business ServicesConnecticut Business Inquiry Search
State of DelawareDelaware Division of CorporationsDelaware Business Entity Search
District of Columbia Office of the SecretaryDistrict of Columbia Department of Consumer and Regulatory Affairs (DCRA)District of Columbia Business Filings Search
Florida Department of StateFlorida SunbizFlorida Business Name Search
Georgia Secretary of StateGeorgia Corporations DivisionGeorgia Business Search
State of HawaiiHawaii Business Registration (BREG)Hawaii Business Entity & Documents Search
Idaho Secretary of State
Business		Idaho Business EntitiesIdaho Business Entity Search
Illinois Secretary of StateIllinois Business ServicesIllinois Corporation & LLC Search
Indiana Secretary of StateIndiana’s INBizIndiana Business Search
Iowa Secretary of StateIowa Business ServicesIowa Business Entities Search
Kansas Secretary of StateKansas Business Filing CenterKansas Business Entity Search Station (BESS)
Kentucky Secretary of StateKentucky Business ServicesKentucky FastTrack Business Organization Search
Louisiana Secretary of StateLouisiana Business ServicesLouisiana Business Filings Search
Maine Secretary of StateMaine Bureau of Corporations, Elections and CommissionsMaine Corporate Name Search
Maryland Secretary of StateMaryland Department of Assessments and Taxation Business ServicesMaryland Business Entity Search
Massachusetts Secretary of the CommonwealthMassachusetts Corporations DivisionMassachusetts Business Entity Search
Michigan Secretary of StateMichigan Corporations, Securities & Commercial Licensing BureauMichigan Business Entity Search
Minnesota Secretary of StateMinnesota Business ServicesMinnesota Search Business Filings
Mississippi Secretary of StateMississippi Business Services DivisionMississippi Business Search
Missouri Secretary of StateMissouri Business Services DivisionMissouri Business Entity Search
Montana Secretary of StateMontana Business Services DivisionMontana Business Entities Search
Nebraska Secretary of StateNebraska Business Services DivisionNebraska Corporation and Business Search
Nevada Secretary of StateNevada Commercial Recordings DivisionNevada Business Entity Search
New Hampshire Secretary of StateNew Hampshire Corporation DivisionNew Hampshire QuickStart Business Search
New Jersey Department of StateNew Jersey Department of the TreasuryNew Jersey Business Entity Name Search
New Mexico Secretary of StateNew Mexico Corporations BureauNew Mexico Business Search
New York Department of StateNew York Division of CorporationsNew York Corporation & Business Entity Database
North Carolina Department of the Secretary of StateNorth Carolina Corporations DivisionNorth Carolina Corporate Name Search
North Dakota Secretary of StateNorth Dakota Business ServicesNorth Dakota Business Records Search
Ohio Secretary of StateOhio Business ServicesOhio Business Search
Oklahoma Secretary of StateOklahoma Business ServicesOklahoma Search Corporation Entities
Oregon Secretary of StateOregon Corporation Division ServicesOregon Business Name Search
Pennsylvania Department of StatePennsylvania Bureau of Corporations and Charitable OrganizationsPennsylvania Business Entity Search
Puerto Rico Departamento de EstadoPuerto Rico Registro de Corporaciones y EntidadesPuerto Rico Búsqueda de Corporaciones
Rhode Island Secretary of StateRhode Island Business PortalRhode Island Corporate Database
South Carolina Secretary of StateSouth Carolina Division of Business FilingsSouth Carolina Search Business Filings
South Dakota Secretary of StateSouth Dakota Business ServicesSouth Dakota Business Information Search
Tennessee Secretary of StateTennessee Business ServicesTennessee Business Information Search
Texas Secretary of StateTexas Corporations SectionTexas Taxable Entity Search
Utah Secretary of StateUtah Division of Corporations & Commercial CodeUtah Business Name Search
Vermont Secretary of StateVermont Corporations & Business ServicesVermont Business Search
Commonwealth of VirginiaVirginia State Corporation CommissionVirginia Business Entity Search
Washington Secretary of StateWashington Corporations DivisionWashington Corporations Search
West Virginia Secretary of StateWest Virginia Business DivisionWest Virginia Business Entity Search
Wisconsin Secretary of StateWisconsin Corporation Section of the Division of Corporate & Consumer ServicesWisconsin Search Corporate Records
Wyoming Secretary of StateWyoming Business DivisionWyoming Business Entity Search

References

https://www.state.gov/secretary/
https://en.wikipedia.org/wiki/State_government
https://en.wikipedia.org/wiki/Secretary_of_state_(U.S._state_government)