What follows are two office surveys: the first list includes the top 25 owners, and the second survey includes the top 25 developers. Survey rankings were based on totals provided by the participating companies and listed in square feet. Owners were asked to record the amound of square feet in their portfolios as of Dec. 31, 2000, while developers were asked to provide their volume of activity for the calendar year, including completed development and new construction.

1. Equity Office Properties Trust
Two N. Riverside Plaza
Chicago, IL 60606
Phone: (312) 466-3300
Fax: (312) 454-0332
Web site: www.equityoffice.com

Officers:
Tim Callahan, President/CEO; Richard Kincaid, Exec. VP/CFO; Stan Stevens, Exec. VP/Chief Legal Counsel; Sybil Ellis, Exec. VP, Real Estate Investments; Dave Naws, Exec. VP, Real Estate Investments; David Helfand, Exec. VP, Business Development

Total Office Portfolio: 99 million sq. ft.

2. Hines
2800 Post Oak Blvd.
Houston, TX 77056-6118
Phone: (713) 621-8000
Fax: (713) 966-2053
Web site: www.hines.com

Officers:
Gerald D. Hines, Chairman; Jeffrey C. Hines, President; Louis S. Sklar, Exec. VP; Kenneth W. Hubbard, Exec. VP; C. Kevin Shannahan, Exec. VP; E. Staman Ogilvie, Exec. VP; James C. Buie, Exec. VP; Michael J.G. Topham, Exec. VP; C. Hastings Johnson, Exec. VP/CFO; John A. Harris, Exec. VP; Clayton T. Stone, Exec. VP; Charles Baughn, Exec. VP

Total Office Portfolio: 42.5 million sq. ft.

3. Mack-Cali Realty Corp.
11 Commerce Dr.
Cranford, NJ 07016
Phone: (908) 272-8000
Fax: (908) 272-6755
E-mail: mack-cali@mack-cali.com
Web site: www.mack-cali.com

Officers:
Mitchell E. Hersh, CEO; Timothy Jones, President; Barry Lefkowitz, Exec. VP/CFO; Roger Thomas, Exec. VP/General Counsel/Secretary; Michael Grossman, Exec. VP

Total Office Portfolio: 27.8 million sq. ft.

4. Clarion Partners
335 Madison Ave.
New York, NY 10017
Phone: (212) 883-2500
Fax: (212) 883-2700
E-mail: surname@clarionp.com
Web site: www.clarionp.com

Officers:
Stephen J. Furnary, Managing Director; Charles Grossman, Managing Director; Frank L. Sullivan Jr., Managing Director; John A. Weisz, Managing Director; A. Wilhelm Veenhuysen, Managing Director

Total Office Portfolio: 26.6 million sq. ft.

5. Duke Realty Corp.
600 East 96th St., Suite 100
Indianapolis, IN 46240
Phone: (317) 808-6000
Fax: (317) 808-6794
E-mail: webmaster@dukerealty.com
Web site: www.dukerealty.com

Officers:
Thomas L. Hefner, Chairman/CEO; Richard W. Horn, President; Robert M. Chapman, Exec. VP, Southern Region; William E. Linville III, Exec. VP, Midwest Region; Darell E. Zink Jr., Exec. VP/CFO

Total Office Portfolio: 24.4 million sq. ft.

6. CarrAmerica Realty Corp.
1850 K St. NW, Suite 500
Washington, DC 20006
Phone: (202) 729-7500
Fax: (202) 729-1150
Web site: www.carramerica.com

Officers:
Thomas A. Carr, Chairman/CEO/President; Philip L. Hawkins, COO; Richard F. Katchuk, CFO; Karen B. Dorigan, Chief Investment Officer; Joel A. Manfredo, Chief Technology Officer

Total Office Portfolio: 24 million sq. ft.

7. Archon Group LP
600 E. Las Colinas Blvd., Suite 400
Irving, TX 75039
Phone: (972) 368-2200
Fax: (972) 368-2699
E-mail: woody.mcminn@archongroup.com
Web site: www.archongroup.com

Officers:
Jim Lozier, President; Brian Ainsworth, Sr. VP; Ken Murphy, Sr. VP; Will Mundinger, Sr. VP; Richard Frapart, Sr. VP

Total Office Portfolio: 21 million sq. ft.

8. CB Richard Ellis Investors LLC
865 S. Figueroa St., Suite 3500
Los Angeles, CA 90017
Phone: (213) 683-4200
Fax: (213) 683-4201
Web site: www.cbrichardellis.com

Officers:
Robert H. Zerbst, President; William M. Harris, COO; Vance G. Maddocks, Exec. Managing Director; Scott E. Tracy, Exec. Managing Director; Richard A. Magnuson, Exec. Managing Director; Richard I. Pink, Exec. Managing Director

Total Office Portfolio: 19.2 million sq. ft.

9. Arden Realty Inc.
11601 Wilshire Blvd., 4th Floor
Los Angeles, CA 91325
Phone: (310) 966-2600
Fax: (310) 966-2699
E-mail: blaute@ardenrealty.com
Web site: www.ardenrealty.com

Officers:
Richard S. Ziman, Chairman/CEO; Victor J. Coleman, President/COO; Andrew J. Sobel, Exec. VP, Strategic Planning & Operations; Daniel S. Bothe, Co-CFO; Richard S. Davis, Co-CFO/Treasurer

Total Office Portfolio: 18.7 million sq. ft.

10. Shorenstein Co. LP
555 California St., Suite 4900
San Francisco, CA 94104
Phone: (415) 772-7000
Fax: (415) 398-6682
E-mail: info@shorenstein.com
Web site: www.shorenstein.com

Officers:
Douglas W. Shorenstein, Chairman/CEO; Glenn A. Shannon, President; John S. Grassi, Managing Director/CIO; Richard A. Chicotel, Managing Director/CFO; Stanley E. Roualdes, Managing Director of Property Mgmt. & Construction

Total Office Portfolio: 18 million sq. ft.

11. RREEF
875 N. Michigan Ave., 41st Floor
Chicago, IL 60611
Phone: (312) 266-9300
Fax: (312) 266-9346
Web site: www.rreef.com

Officers:
Donald A. King Jr., Managing Principal; Stephen M. Steppe, Principal in Charge, Client Relations; Charles B. Leitner, Principal in Charge, Acquisitions; Michael J. Robillard, Principal in Charge, Property Management; Robert J. Cook, Principal in Charge, Portfolio Management

Total Office Portfolio: 16.2 million sq. ft.

12. Prentiss Properties Trust
3890 W. Northwest Hwy., 4th Floor
Dallas, TX 75220
Phone: (214) 654-0886
Fax: (214) 350-2437
Web site: www.prentissproperties.com

Officers:
Mike Prentiss, Chairman; Tom August, President/CEO; Dennis DuBois, Exec. VP; Larry Krueger, Exec. VP; Bob Wiberg, Exec. VP

Total Office Portfolio: 15.5 million sq. ft.

13. Liberty Property Trust
65 Valley Stream Pkwy.
Malvern, PA 19355
Phone: (610) 648-1700
Fax: (610) 644-4129
Web site: www.libertyproperty.com

Officers:
Willard G. Rouse III, President/CEO/Chairman; Robert E. Fenza, COO; George J. Alburger, CFO; William P. Hankowsky, Chief Investment Officer

Total Office Portfolio: 15.4 million sq. ft.


14. Charles E. Smith Commercial Realty
2345 Crystal Dr.
Arlington, VA 22202
Phone: (703) 920-8500
Fax: (703) 486-7471
Web site: www.charlesesmith.com

Officers:
Robert H. Smith, Co-Chairman; Robert P. Kogod, Co-Chairman; Brent Bitz, Exec. VP, Management Services; Kenneth McVearry, Exec. VP, Real Estate Services; Paul Larner, Exec. VP/CFO; Al Neely, President, Development

Total Office Portfolio: 15.1 million sq. ft.


15. Reckson Associates Realty Corp.
225 Broadhollow Rd.
Melville, NY 11747
Phone: (631) 694-6900
Fax: (631) 622-6790
Web site: www.reckson.com

Officers:
Donald Rechler, Chairman/Co-CEO; Scott Rechler, Co-CEO; Michael Maturo, CFO/Exec. VP/Treasurer; Gregg Rechler, Co-President/COO; Mitchell Rechler, Co-President/Chief Administrative Officer

Total Office Portfolio: 14.4 million sq. ft.


16. Gale & Wentworth LLC
200 Campus Dr., Suite 200
Florham Park, NJ 07932
Phone: (973) 301-9500
Fax: (973) 301-9501
Web site: www.galewent.com

Officers:
Stanley C. Gale, Chairman/CEO; Mark Yeager, President; Kathleen Wielkopolski, CFO/COO; Eugene R. Diaz, Chief Investment Officer

Total Office Portfolio: 14 million sq. ft.


17. Brandywine Realty Trust
14 Campus Blvd., Suite 100
Newtown Square, PA 19073
Phone: (610) 325-5600
Fax: (610) 325-5682
Web site: www.brandywinerealty.com

Officers:
Gerard H. Sweeney, President/CEO; Jeffrey F. Rogatz, Sr. VP/CFO; H. Jeffrey DeVuono, Sr. VP, Operations; George D. Sowa, Sr. VP, Operations; Barbara L. Yamarick, Sr. VP, Property Management

Total Office Portfolio: 13.7 million sq. ft.


18. Lincoln Property Co.
500 N. Akard, Suite 3300
Dallas, TX 75201
Phone: (214) 740-3300
Fax: (214) 740-3441
E-mail: leverett@lpsi.com
Web site: www.lincolnproperty.com

Officers:
Mack Pogue, Chairman/CEO; Tim Byrne, President, Residential Division; Bill Duvall, President, Commercial Division

Total Office Portfolio: 13.4 million sq. ft.


19. Opus Group
10350 Bren Rd. W.
Minneapolis, MN 55343
Phone: (952) 656-4444
Fax: (952) 656-4529
E-mail: carol.quam@opuscorp.com
Web site: www.opuscorp.com

Officers:
Gerald Rauenhorst, Founding Chairman, Opus Corp.; Keith Bednarowski, Chairman, Opus Corp.; Mark Rauenhorst, President/CEO, Opus Corp.; Joe Rauenhorst, President/CEO, Opus East LLC; Neil Rauenhorst, President/CEO, Opus South Corp.; Thomas Roberts, President/CEO, Opus West Corp.; Jack Crocker, President/CEO, Opus North Corp.; John Solberg, President/CEO, Opus Northwest LLC

Total Office Portfolio: 12.9 million sq. ft.


20. Jones Lang LaSalle Inc.
200 E. Randolph Dr.
Chicago, IL 60601
Phone: (312) 782-5800
Fax: (312) 782-4339
Web site: www.joneslanglasalle.com

Officers:
Stuart L. Scott, Chairman/CEO; Christopher A. Peacock, President/Deputy CEO/COO; Earl E. Webb, CEO, Americas; Peyton H. Owen Jr., COO, Americas; Lynn C. Thurber, CEO, LaSalle Investment Management

Total Office Portfolio: 12.5 million sq. ft.

21. Heitman
180 N. LaSalle St.
Chicago, IL 60601
Phone: (312) 855-5700
Fax: (312) 855-5803
Web site: www.heitman.com

Officers:
Jerome J. Claeys, CEO; Maury R. Tognarelli, President; Eric Mayer, Vice Chairman

Total Office Portfolio: 11.6 million sq. ft.

22. CMD Realty Investors
227 W. Monroe St., Suite 3900
Chicago, IL 60606
Phone: (312) 726-3121
Fax: (312) 726-9473
Web site: www.cmdrealty.com

Officers:
Steven Ellenbogen, President/CEO; Richard Schaller, Exec. VP/COO; Hugh Zwieg, Exec. VP/CFO; James Higley, Exec. VP/CAO; Randy Selig, Exec. VP/General Counsel

Total Office Portfolio: 11 million sq. ft.

23. Rockefeller Group Development Corp.
1221 Ave. of the Americas, 29th Floor
New York, NY 10020
Phone: (212) 282-2100
Fax: (212) 282-2120
Web site: www.rockgroupdevelopment.com

Officers:
Jonathan D. Green, President/CEO; Leslie E. Smith Jr., Sr. VP, Development; Stephen R. Carroll, Sr. VP./CFO; Robert C. Jackson, Sr. VP, Finance; Alan L. Stein, Sr. VP, Leasing & Marketing

Total Office Portfolio: 10.9 million sq. ft.

24. The Alter Group
5500 W. Howard
Skokie, IL 60077
Phone: (800) 637-4842
Fax: (847) 676-4301
E-mail: tag@altergroup.com
Web site: www.altergroup.com

Officers:
William Atler, CEO/Chairman; Michael Atler, President; Richard Gatto, Exec. VP; Randy Thomas, Exec. VP; Ron Siegel, CFO

Total Office Portfolio: 9.9 million sq. ft.

25. The Rouse Co.
10275 Little Patuxent Pkwy.
Columbia, MD 21044
Phone: (410) 992-6000
Fax: (410) 992-6363
Web site: www.therousecompany.com

Officers:
Anthony W. Deering, Chairman/CEO; Douglas A. McGregor, Vice Chairman/COO; Jeffrey H. Donahue, Exec. VP/CFO; Jerome D. Smalley, Exec. VP, Development; Robert Minutoli, Sr. VP, New Business

Total Office Portfolio: 9.3 million sq. ft.