Politics and Business magazines
- Imasco Limited
- Imation Corporation
- Imatra Steel Oy Ab
- IMC Fertilizer Group, Inc.
- ImClone Systems Inc.
- IMCO Recycling, Incorporated
- Imerys S.A.
- Imetal S.A.
- IMI plc
- Immucor, Inc.
- IMPATH Inc.
- Imperial Holly Corporation
- Imperial Industries, Inc.
- Imperial Parking Corporation
- Imperial Sugar Company
- IMS Health, Inc.
- In Focus Systems, Inc.
- In-N-Out Burger
- In-N-Out Burgers Inc.
- In-Sink-Erator