- 3M
- 444 Blocks
- Krone/ADC/TE Blocks
- Alcatel/Nexan Blocks
- AT&T Blocks
- BAB Blocks
- BARGOA Blocks
- Corning Blocks
- BLA Block
- B Type Blocks
- Columbian Trucco Blocks
- Corning (Cook) Blocks
- Convencional Block
- Cosmic/Lucent/Avaya Blocks
- Custom Assembly Inc
- Custom Assembly Inc - Accessories
- Custom Assembly Inc - Cutover Systems
- Custom Assembly Inc - Test Cords and Clips
- Custom Assembly Inc - Test Fixtures
- Egerton Blocks
- Ericsson/Erinet Blocks
- Fetex Blocks
- Figi Phillips Blocks
- Generic 25 pair Universal Front Tap Shoes
- Lucent Blocks
- Reichle De Massari Blocks (R & M)
- Huawei Blocks
- Metaconta Blocks
- Netherland Blocks
- MONDRAGON QDF Blocks
- NEC Blocks
- New Zealand Blocks
- Corning (Northern Telecom) Blocks
- Pole Mounting Boxes
- Porta Blocks
- Pouyet Blocks
- Quante Blocks
- R & M Blocks (Reichle de Massari)
- Reliable/Marconi/Emerson/Reltec Blocks
- Safe-Clip™
- Siecor/Corning Blocks
- Siemens Blocks
- Simelca Blocks
- Sofycom Blocks
- Tradicional Blocks
- TE Connectivity/Tyco/HUB Blocks
- VEL Enterprises
- ZAU Blocks