The Top 25 Office Owners survey includes office space owned globally as of Dec. 31, 2007. Last year RREEF ranked No. 11 with 33.7 million sq. ft. of space in its office portfolio as of Dec. 31, 2006, which only included properties in the United States. This year, RREEF moves up to No. 1 in the rankings with 93.6 million sq. ft. in its global office portfolio.

1. RREEF

Total Office Portfolio: 93.6 million sq. ft.
280 Park Ave., Ste. 22W
New York, NY 10017
Phone: (212) 454-3900
Web site: www.rreef.com
Officers: Charles B. Leitner, Global Head; Michael Luciano, Global COO

2. Brookfield Properties Corp.

Total Office Portfolio: 59.5 million sq. ft.
Three World Financial Center
200 Vesey St., Ste. 1100
New York, NY 10281
Phone: (212) 417-7000
Web site: www.brookfieldproperties.com
Officers: Ric Clark, President/CEO; Dennis Friedrich, President/COO, U.S. Commercial Operations; Tom Farley, President/COO

3. The Blackstone Group

Total Office Portfolio: 57.9 million sq. ft.
345 Park Ave.
New York, NY 10154
Phone: (212) 583-5000
Web site: www.blackstone.com
Officers: Peter Peterson, senior chairman; Stephen Schwarzman, chairman/CEO; Hamilton James, president/COO

4. Hines

Total Office Portfolio: 55.4 million sq. ft.
2800 Post Oak Blvd.
Houston, TX 77056
Phone: (713) 621-8000
Web site: www.hines.com
Officers: Gerald D. Hines, Chairman; Jeffrey C. Hines, President; C. Hastings Johnson, EVP/CFO

5. CB Richard Ellis Investors

Total Office Portfolio: 49.8 million sq. ft.
515 S. Flower St., 31st Floor
Los Angeles, CA 90071
Phone: (213) 683-4300
Web site: www.cbreinvestors.com
Officers: Vance Maddocks, CEO; William Harris, President/COO; Robert Zerbst, Chairman

6. TIAA-CREF

Total Office Portfolio: 47 million sq. ft.
730 Third Ave.
New York, NY 11762-3206
Phone: (800) 842-2733
Web site: www.tiaa-cref.org
Officers: Scott Evans, EVP, Asset Management; Edward Grzybowski, CIO; Thomas Garbutt, head, global real estate

7. ING Clarion Partners

Total Office Portfolio: 46.8 million sq. ft.
230 Park Ave
New York, NY 10169
Phone: (212) 883-2500
Web site: www.ingclarion.com
Officers: Stephen Furnary, CEO/Managing Director; Bill Kracuh, Global Marketing Head; Frank Sullivan, Managing Director

8. Vornado Realty Trust

Total Office Portfolio: 44.2 million sq. ft.
888 Seventh Ave.
New York, NY 10019
Phone: (212)894-7000
Web site: www.vno.com
Officers: Steven Roth, Chairman/CEO; Michael D. Fascitelli, President; Joseph Macnow, EVP/CFO

9. Boston Properties

Total Office Portfolio: 43.8 million sq. ft.
800 Boylston St., Ste. 1900
Boston, MA 02199
Phone: (617) 236-3300
Web site: www.bostonproperties.com
Officers: Mortimer B. Zuckerman, Chairman; Edward H. Linde, CEO; Douglas T. Linde, President

10. LaSalle Investment Management

Total Office Portfolio: 39 million sq. ft.
200 East Randolph Dr.
Chicago, IL 60601
Phone: (312) 782-5800
Web site: www.lasalle.com
Officers: Jeff Jacobson, CEO; Jaques Gordon, International Director, Research & Strategy; Matthew Reed, International Co-Head, Acquisitions

11. Duke Realty Corp.

Total Office Portfolio: 36.3 million sq. ft.
600 E. 96th St., Ste. 100
Indianapolis, IN 46240
Phone: (317) 808-6000
Web site: www.dukerealty.com
Officers: Dennis D. Oklak, Chairman/CEO; Robert M. Chapman, COO

12. HRPT Properties Trust

Total Office Portfolio: 35.3 million sq. ft.
400 Centre St.
Newton, MA 02458
Phone: (617) 332-3990
Web site: www.hrpreit.com
Officers: John A. Mannix, President/COO; John C. Popeo, Treasurer/CFO; Jennifer B. Clark, SVP

13. Mack-Cali Realty Corp.

Total Office Portfolio: 33.3 million sq. ft.
343 Thornall St.
Edison, NJ 08837
Phone: (732) 590-1000
Web site: www.mack-cali.com
Officers: Mitchell E. Hersh, President/CEO; Barry Lefkowitz, EVP/CFO; Michael Grossman, EVP

14. SL Green Realty Corp.

Total Office Portfolio: 32.2 million sq. ft.
420 Lexington Ave.
New York, NY 10170
Phone: 212-356-4109
Officers: Marc Holliday, CEO; Andrew Mathias, President/CIO; Greg Hughes, CFO & COO

15. Brandywine Realty Trust

Total Office Portfolio: 31.9 million sq. ft.
555 E. Lancaster Ave., Ste. 100
Radnor, PA 19087
Phone: (610) 325-5600
Web site: www.brandywinerealty.com
Officers: Gerard H. Sweeney, President/CEO; Howard Sipzner, EVP/CFO; George Johnstone, SVP, Operations

16. Behringer Harvard

Total Office Portfolio: 30.4 million sq. ft.
15601 Dallas Pkwy., Ste. 600
Addison, TX 75001
Phone: (214) 655-1600
Officers: Robert Behringer, CEO; Bob Aisner, President/COO; Bob Chapman, EVP/Co-COO

17. J.E. Robert Cos.

Total Office Portfolio: 27.7 million sq. ft.
1650 Tysons Blvd, Ste. 1600
McLean, VA 22102
Phone: (703) 714-8000
Web site: www.jer.com
Officers: Joseph E. Robert Jr., Founder/CEO; Michael E. Pralle, President/COO; Malcolm LeMay, President, Europe

18. Highwoods Properties

Total Office Portfolio: 25.7 million sq. ft.
3100 Smoketree Court, Ste. 600
Raleigh, NC 27604
Phone: (919) 431-1521
Web site: www.highwoods.com
Officers: Ed Fritsch, President/CEO; Mike Harris, EVP/COO; Terry Stevens, SVP/CFO

18. Liberty Property Trust

Total Office Portfolio: 25.7 million sq. ft.
500 Chesterfield Pkwy.
Malvern, PA 19355
Phone: (610) 648-1700
Web site: www.libertyproperty.com
Officers: William P. Hankowsky, Chairman/CEO; Robert E. Fenza, EVP/COO; George J. Alburger Jr., EVP/CFO

19. Shorenstein Properties

Total Office Portfolio: 21.3 million sq. ft.
235 Montgomery St., 16th Floor
San Francisco, CA 94104
Phone: (415) 772-7000
Web site: www.shorenstein.com
Officers: Douglas W. Shorenstein, Chairman/CEO; Glenn A. Shannon, President; Richard A. Chicotel, Managing Director/CFO

20. Wells Real Estate Funds

Total Office Portfolio: 20.5 million sq. ft.
6200 The Corners Pkwy.
Norcross, GA 30092
Phone: (770) 449-7800
Web site: www.wellsref.com
Officers: Leo Wells, President; Don Henry, Chief Real Estate Officer; Kevin Race, CFO

21. KBS Realty Advisors

Total Office Portfolio: 18.7 million sq. ft. 620 Newport Center Dr., Ste 1300
Newport Beach, CA 92660
Phone: (949) 417-6500
Web site: www.kbsrealty.com
Officers: Charles J. Schreiber Jr., CEO; Peter M. Bren, Chairman/President; James C. Chiboucas, Vice Chairman

22. The Inland Real Estate Group of Cos.

Total Office Portfolio: 18 million sq. ft.
2901 Butterfield
Oak Brook, IL 60523
Phone: (630) 218-8000
Web site: www.inlandgroup.com
Officers: Daniel L. Goodwin, Chairman

23. AEW Capital Management

Total Office Portfolio: 15.3 million sq. ft.
World Trade Center East, Two Seaport Lane
Boston, MA 02210
Phone: (617) 261-9000
Web site: www.aew.com
Officers: Jeffrey D. Furber, CEO; Steven D. Corkin, Managing Director, Marketing and Client Service; Pamela J. Herbst, Managing Director, AEW Direct Investments

24. Lincoln Property Co.

Total Office Portfolio: 14.6 million sq. ft.
500 N. Akard, Ste. 3300
Dallas, Texas 75201
Phone: (214) 740-3300
Web site: www.lincolnproperty.com
Officers: Mack Pogue, Chairman; Tim Byrne, President/CEO, Residential Divison; Bill Duvall, President/CEO, Commercial Division

25. Forest City Enterprises

Total Office Portfolio: 13.4 million sq. ft.
Terminal Tower, 50 Public Square, Ste. 1100
Cleveland, Ohio 44113
Phone: (216) 621-6060
Web site: www.forestcity.net
Officers: Samuel H. Miller, Co-Chairman; Albert B. Ratner, Co-Chairman; Charles A. Ratner, President/CEO