- IOLANI SCHOOL
- IOLANI SCHOOL
- IOLON INC
- IOMEGA CORP
- ION HOLDINGS INC
- ION MEDIA (FORMERLY KNOWN AS PAXSON COMMUNICATIONS CORP)
- IONA COLLEGE
- IONA COLLEGE
- IONA TECHNOLOGIES INC
- IONBOND INC
- IONIA COUNTY MEMORIAL HOSPITAL
- IONIA COUNTY MEMORIAL HOSPITAL
- IONICS INC
- IONICS INC
- IONICS INC
- IOTA HOLDING COMPANY
- IOWA 80 GROUP TRUCKSTOP INC
- IOWA ASSOCIATION OF ELECTRIC COOPERATIVES
- IOWA BANKERS ASSOCIATION
- IOWA BANKERS INSURANCE & SERVICES INC
- IOWA BEER & BEVERAGE COMPANY
- IOWA BRIDGE & CULVERT LC
- IOWA BUILDERS
- IOWA CARPENTERS HEAVY HIGHWAY/TEAMSTERS JOINT COUNCIL 45
- IOWA FARM BUREAU MANAGEMENT CORP
- IOWA FARM BUREAU MANAGEMENT CORP
- IOWA FIRST BANCSHARES CORP
- IOWA FOUNDATION FOR MEDICAL CARE
- IOWA GLASS DEPOT INC
- IOWA HEALTH PHICHIANS
- IOWA HEALTH PHICHIANS
- IOWA HEALTH SYSTEM
- IOWA HEALTH SYSTEM
- IOWA HEART CENTER PC
- IOWA INTERSTATE RAILROAD LTD
- IOWA IRONWORKERS HEAVY HIGHWAY
- IOWA IRONWORKERS HEAVY HIGHWAY
- IOWA JEWISH SENIOR LIFE CENTER
- IOWA MENNONITE BENEVOLENT ASSOCIATION
- IOWA MOLD TOOLING CO INC
- IOWA MOLD TOOLING CO INC
- IOWA MOTOR TRUCK ASSOCIATION
- IOWA OIL COMPANY
- IOWA ORTHOPAEDIC CENTER PC
- IOWA PACKING COMPANY
- IOWA PAINT MANUFACTURING INC
- IOWA PIZZA COMPANY
- IOWA PIZZA COMPANY
- IOWA ROTOCAST PLASTICS INC
- IOWA SELECT FARMS LP
- IOWA SPRING MANUFACTURING & SALES INC
- IOWA STATE BANK & TRUST COMPANY
- IOWA STATE BANK & TRUST COMPANY
- IOWA STUDENT LOAN LIQUIDITY CORP
- IOWA SUBWAY DEVELOPMENT INC
- IOWA TANKLINES INC
- IOWA TELECOMMUNICATIONS SERVICES INC
- IOWA TELECOMMUNICATIONS SERVICES INC
- IOWA TELECOMMUNICATIONS SERVICES INC
- IOWA TURKEY PRODUCTS INC
- IOWA VETERINARY SUPPLY CO
- IOWA VETERINARY SUPPLY CO
- IOWA WIRELESS SERVICES LP
- IOWAS OF OKLAHOMA