Businesses and Occupations
- Daio Paper Corp
- Dairy Mart Convenience Stores Inc
- Daishowa Paper Manufacturing Co. Ltd
- Dallas Semiconductor Corp
- Dan River Inc
- Dana Corp
- Danaher Corp
- Danskin Inc
- Danzas Group
- Darden Restaurants Inc
- Day Runner Inc
- Day trading
- Dayton Hudson Corp
- De Beers Consolidated Mines LimitedDe Beers Centenary AG
- De La Rue plc
- Dean Foods Company
- Deb Shops Inc
- Decision making
- Decision support systems
- Deere & Company