Politics and Business magazines
- National Medical Enterprises, Inc.
- National Medical Health Card Systems, Inc.
- National Oilwell, Inc.
- National Organization for Women, Inc.
- National Patent Development Corporation
- National Picture & Frame Company
- National Power PLC
- National Public Radio, Inc.
- National R.V. Holdings, Inc.
- National Record Mart, Inc.
- National Research Corporation
- National Sanitary Supply Co.
- National Sea Products Ltd.
- National Standard Co.
- National Starch and Chemical Company
- National Steel Corporation
- National TechTeam, Inc.
- National Thoroughbred Racing Association
- National Westminster Bank PLC
- National Wine & Spirits, Inc.