| A | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Company | Phone Number | Comments |
| Landis & Gyr Powers | (312) 272-9555 | Powers System 600 |
| Laser Master | (612) 944-9331 | Technical support |
| Laser Master | (612) 944-9330 | Sales |
| Lasertools Corp | (800) 767-8005 | Technical support |
| Lasertools Corp | (800) 767-8004 | Sales |
| Lasertools Corp | (510) 420-8777 | Sales |
| Legalware Inc | (416) 863-6906 | Document Modeler template creator |
| Lexmark (& IBM) | (606) 232-3000 | Printer support |
| Lexmark (& IBM) | (606) 232-2873 | end user Support Fax number |
| Lexmark (& IBM) | (606) 232-5238 | Faxback |
| Lexmark (& IBM) | (606) 232-2380 | BBS |
| Lifeboat Associates Writing Tools Group | (212) 860-0300 | |
| Lifetree | (415) 541-7864 | |
| Lifetree | (800) LIFETRE | Correct Grammar |
| Lightpen Company | (213) 305-7616 | L-PC Lightpen |
| Lightpen Company | (213) 305-7616 | Lite-Mouse light pen mouse emulator |
| Linotype Company | (516) 434-2000 | Linotronic imagesetter PostScript printers |
| Linotype Company | (800) 633-1900 | Technical support |
| Lite-On, Inc | (408) 946-4873 | Power Supplies |
| Lite-On Technologies Corp | (408) 935-5353 | CD-ROM Drives |
| LocalNet | (714) 549-7942 | Communications |
| Logitech | (800) 231-7717, (510) 795-0427 |
Logitech technical support |
| Logitech | (510) 795-8500 | LogiMouse |
| Lotus Development Co. / Lotus Development | (800) 635-6887 / (617) 577-8500 |
Lotus products / Business office |
| Lotus Development | (617) 253-9150 | Technical support |
| Lotus Development | (404) 399-5505 | Ami Pro technical support |
