31. IDI
| Address | 1100 Peachtree Street |
| City | Atlanta |
| State | GA |
| Zip | 30309 |
| Web Site | www.idi.com |
| Phone | 404.479.4000 |
| Officers | Tim Gunter, President & CEO; David Birdwell, EVP & COO; Linda Booker, EVP & CFO |
| Third-Party Space Managed | 24,587,421 |
| Owned Spaced Managed | 27,980,663 |
| Total Space Managed | 52,568,084 |