| Name | Phone | Category |
| Idearc Media, Inc. | 503-643-8000 | Advertising Agencies |
| IKE Box | 503-581-6154 | Restaurants - Coffee & Tea |
| IKON Office Solutions | (503) 315-7604 | Copiers, Printers & Supplies |
| Illahe Hills Country Club | 503-364-0117 | Golf Courses - Private |
| IMEX America Corporation | 503-391-1500 | Manufacturers |
| Indigo Wellness Center | 503-371-1120 | Physicians & Surgeons - Chiropractic |
| Indigo Yoga Studio – Downtown | 503-370-9090 | Yoga |
| Industrial Supply Co. of Salem, Inc. | 503-363-2374 | Janitorial Equipment & Supplies |
| The Inn of the Seventh Mountain | 866-712-3655 | Hotels & Other Accommodations |
| Insight Worldwide | (503) 375-7373 | Employment Screening |
| Inspections Unlimited Inc. | 503-581-5855 | Home & Building Inspection |
| Instant Fire Protection | 503-362-4511 | Fire Extinguishers |
| Integra Telecom | 503-485-8225 | Telecommunication Companies |
| Integrity First Financial Services, PC | 503-390-5544 | Accounting & Tax Service |
| Integrity Medical Evaluations, Inc | 503-390-5975 | Medical Services |
| Investors Brokerage, Inc. | 503-581-8900 | Real Estate Developers |
| Invisus Direct Associate | 503-315-9847 | Consultants - Technology |
| The IpseNault Company | 503-390-8968 | Advertising - Promotional Products |
| Iron Mountain | 541-505-7759 | Document Management |