| Puerto Rico | Mainland USA |
| 1. Abbott Laboratories | 1. American Electric Power |
| 2. Amgen | 2. BOEING |
| 3. Autoridad de Energía Eléctrica | 3. CISCO Systems |
| 4. Banco Popular/ Evertec | 4. Department of Defense |
| 5. Bard Puerto Rico | 5. Department of the Navy |
| 6. Baxter Healthcare IV Systems | 6. Eastman Chemical, Tenn |
| 7. Cervecera de Puerto Rico | 7. Environmental Protection Agency |
| 8. Colgate | 8. General Electric |
| 9. Eli Lilly del Caribe | 9. General Electric Aircraft |
| 10. Eco Electrica | 10. General Motors |
| 11. FIRSTBANK | 11. Honeywell |
| 12. General Electric del Caribe | 12. IBM |
| 13. Guidant Puerto Rico | 13. Kimberly Clark |
| 14. Hamilton Sundstrand | 14Lockheed Martin |
| 15. Johnson and Johnson | 15. MICROSOFT |
| 16. McNeil | 16. Medtronic |
| 17. Medtronics | 17. NASA Glenn |
| 18. Merck Sharp and Dohme | 18. NASA Goddard |
| 19. Ocular Sciences Caribbean | 19. National Security Agency |
| 20. Ortho Biologics | 20. Naval Undersea Warfare |
| 21. PALL | 21. Procter &Gamble |
| 22. Pfizer | 22. Pratt & Whitney |
| 23. Procter and Gamble | 23. Raytheon |
| 24. Rock Solid Technologies | 24. Southern Company |
| 25. Shell Chemical Yabucoa | 25. Texas Instruments |
| 26. Stryker | 26. US Army |
| 27. Wyeth | 27. U.S. Nuclear Regulatory |
| 28. Walt Disney Engineering |
