| Company Names & Links | Phone Number | Tech Support | BBS/Other |
| LASER GO | 800-955-1132 | 619-450-9370 | |
| LASER TOOLS | 800-767-8004 | 800-767-8005 | |
| LEADING EDGE | 800-874-3340 | 900-370-4800 | 508-836-3967 |
| LEARNING CO. | 800-852-2255 | 800-852-2255 | |
| LEGISOFT | 415-566-9136 | ||
| LETRASET USA | 800-343-8973 | 800-634-3463 | |
| LEXMARK | 416-477-2311 | 606 232-3000 | |
| LIANT/RYAN MCFARLAND | 800-237-1874 | ||
| LIGHT SOURCE | 800-231-7226 | 415-461-3030 | |
| LINK TECHNOLOGIES | 800-448-5465 | 800-448-5465 | |
| LOGICAL CONNECTION | 800-873-4384 | 800-766-7283 | 504-295-3344 |
| LOTUS | 800-343-5414 | 800-223-0303 |