PMI
- Indonesian Red Cross Society
- PMI Colleges
- PMI Colleges Bohol
- PMI Group
- Palma de Mallorca Airport
- Passenger-mile
- Philip Morris International
- Pickleball in Canada
- Picture Music International
- Pima Medical Institute
- Plumbing Manufacturers International
- Pointwise mutual information
- Positive material identification
- Post-merger integration
- Post-mortem interval
- Precious Moments, Inc.
- Precision Monolithics
- President's Malaria Initiative
- Presidential Management Fellows Program
- Preventive maintenance inspection
- Private mortgage insurance
- Privilege Management Infrastructure
- Product and manufacturing information
- Project Management Institute
- Purchasing Managers' Index