The best way to find out is to look at the benefits list for each organization you're considering. You will find that InterNACHI always:
- Has the most membership benefits (exclusive tools, discounts, etc)
- Has many more free continuing education hours available to members
- Is always helpful and responsive—our founder and CEO both personally answer member questions every day
- Has the largest community of inspectors
In the end it is a personal decision, but with InterNACHI you'll always get more bang for your buck.