21. Columbia Property Trust
| Address | One Glenlake Pkwy., Ste. 1200 |
| City | Atlanta |
| State | GA |
| Zip | 30328 |
| Website | www.columbiapropertytrust.com |
| Phone | 404.465.2200 |
| Officers | E. Nelson Mills, President, CEO & Director; James A. Fleming, EVP & CFO; Drew Cunningham, SVP, Real Estate Operations |
| Office Space Owned | 16,500,000 |