International Time Recording Company | Computing Scale Company | Bundy Manufacturing Company | Tabulating Machine Company

Services and software
AIX | HashiCorp | iX | Red Hat

Computer systems and hardware
Power (PowerPC) | Watson | Z

Discontinued/Formerly
AdStar | Ambra Computer Corporation | Ascential Software | Candle Corporation | FileNet | Fortran¹ | Home Page Reader | IntelliStation | ILOG | Kaleida Labs² | Kyndryl¹ | LAN Server | Lotus Software¹ | NetVista | OS/2 | IBM Personal Computer | PC DOS | PCjr | PC Series | PS/1 | PS/2 | PS/ValuePoint | System Object Model | Taligent² | IBM ThinkCentre¹ | IBM ThinkPad¹ | Tivoli Software | Ultimedia | The Weather Channel (The Weather Company)¹ | WebExplorer

¹Sold or spun off.
²Joint venture.