The Top 25 Office Owners survey includes office space owned globally as of Dec. 31, 2008. RREEF had the greatest total amount of space at 80.7 million sq. ft. That was 14 million sq. ft. more than No. 2, Hines. Blackstone, which was ranked No. 1 on last year's list with 57.9 million sq. ft., declined to participate in this year's survey.

Expanded list has a total of 46 office owners.Purchase now

  1. RREEF Americas

    Total Office Portfolio: 80.7 million sq. ft.

    280 Park Avenue

    Web site: www.rreef.com

  2. Hines

    Total Office Portfolio: 66.2 million sq. ft.

    Phone: (713) 621-8000

    Web site: www.hines.com

  3. Brookfield Properties Corp.

    Total Office Portfolio: 60.8 million sq. ft.

    Phone: (212) 417-7000

    Web site: www.brookfieldproperties.com

  4. CB Richard Ellis Investors

    Total Office Portfolio: 60.1 million sq. ft.

    Phone: (213) 683-4200

    Web site: www.cbreinvestors.com

  5. Boston Properties

    Total Office Portfolio: 49.8 million sq. ft.

    Phone: (617) 236-3000

    Web site: www.bostonproperties.com

  6. TIAA-CREF

    Total Office Portfolio: 47.1 million sq. ft.

    Phone: (800) 842-2252

    Web site: www.tiaa-cref.org

  7. Vornado Realty Trust

    Total Office Portfolio: 44.6 million sq. ft.

    Phone: (212) 894-7000

    Web site: www.vno.com

  8. LaSalle Investment Management

    Total Office Portfolio: 40.8 million sq. ft.

    Phone: (312) 782-5800

    Web site: www.lasalle.com

  9. Duke Realty Corp.

    Total Office Portfolio: 37 million sq. ft.

    Phone: (317) 808-6000

    Web site: www.dukerealty.com

  10. HRPT Properties Trust

    Total Office Portfolio: 36.4 million sq. ft.

    Phone: (617) 332-3990

    Web site: www.hrpreit.com

  11. Mack-Cali Realty Corp.

    Total Office Portfolio: 33.1 million sq. ft.

    Phone: (732) 590-1000

    Web site: www.mack-cali.com

  12. Behringer Harvard

    Total Office Portfolio: 31 million sq. ft.

    Phone: (214) 655-1600

    Web site: www.behringerharvard.com

  13. SL Green Realty Corp.

    Total Office Portfolio: 30.9 million sq. ft.

    Phone: (212) 594-2700

    Web site: www.slgreen.com

  14. Brandywine Realty Trust

    Total Office Portfolio: 30.3 million sq. ft.

    Phone: (610) 325-5600

    Web site: www.brandywinerealty.com

  15. Highwoods Properties

    Total Office Portfolio: 27 million sq. ft.

    Phone: (919) 431-1521

    Web site: www.highwoods.com

  16. Liberty Property Trust

    Total Office Portfolio: 26 million sq. ft.

    Phone: (610) 648-1700

    Web site: www.libertyproperty.com

  17. ING Clarion Partners

    Total Office Portfolio: 23.7 million sq. ft.

    Phone: (212) 883-2500

    Web site: www.ingclarion.com

  18. Shorenstein Properties

    Total Office Portfolio: 23 million sq. ft.

    Phone: (415) 772-7000

    Web site: www.shorenstein.com

  19. KBS Realty Advisors

    Total Office Portfolio: 21.5 million sq. ft.

    Phone: (949) 417-6532

    Web site: www.kbsrealty.com

  20. AEW Capital Management

    Total Office Portfolio: 20.8 million sq. ft.

    Phone: (617) 261-9000

    Web site: www.aew.com

  21. Wells Real Estate Funds

    Total Office Portfolio: 20.3 million sq. ft.

    Phone: (770) 449-7800

    Web site: www.wellsref.com

  22. Maguire Properties

    Total Office Portfolio: 20 million sq. ft.

    Phone: (213) 626-3300

    Web site: www.maguireproperties.com

  23. Corporate Office Properties Trust

    Total Office Portfolio: 19.2 million sq. ft.

    Phone: (443) 285-5400

    Web site: www.copt.com

  24. The Inland Real Estate Group of Cos.

    Total Office Portfolio: 18.1 million sq. ft.

    Phone: (630) 218-8000

    Web site: www.inlandgroup.com

  25. Forest City Enterprises

    Total Office Portfolio: 14.1 million sq. ft.

    Phone: 216/621-6060

    Web site: www.forestcity.net

Expanded list has a total of 46 office owners.Purchase now