The Top 25 Office Developers survey is based on data provided by participating companies. Developers were asked to record their volume of global activity for the 2007 calendar year. Results include completed development and new construction as of Dec. 31, 2007. Because there were several ties among the Top 25, the last listed ranking is No. 19.

1. Hines

Total Office Space Developed or Under Construction: 21.2 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

2. Opus Group

Total Office Space Developed or Under Construction: 9.7 million sq. ft.
10350 Bren Rd. West
Minnetonka, MN 55343
Phone: (952) 656-4444
Web site: www.opuscorp.com
Officers: Mark Rauenhorst, Chairman/CEO; Steve Polacek, CAO/CFO; Andy Deckas, SVP/CIO

3. Trammell Crow Co.

Total Office Space Developed or Under Construction: 6.9 million sq. ft.
2001 Ross Ave., Ste. 3400
Dallas, TX 75201
Phone: (214) 863-4101
Web site: www.trammellcrow.com
Officers: Robert Sulentic, CEO; Jim Groch, CIO

4. Duke Realty Corp.

Total Office Space Developed or Under Construction: 6.1 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

5. Lincoln Property Co.

Total Office Space Developed or Under Construction: 4.7 million sq. ft.
500 N. Akard, Ste. 3300
Dallas, TX 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

6. The Alter Group

Total Office Space Developed or Under Construction: 4.1 million sq. ft.
5500 Howard St.
Skokie, IL 60077
Phone: (847) 676-4300
Web site: www.altergroup.com
Officers: Michael J. Alter, President; Richard M. Gatto, EVP; Randolph F. Thomas, EVP

7. Boston Properties

Total Office Space Developed or Under Construction: 3.9 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

8. Liberty Property Trust

Total Office Space Developed or Under Construction: 3.5 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

9. Cousins Properties

Total Office Space Developed or Under Construction: 2.8 million sq. ft.
191 Peachtree St., Ste. 3600
Atlanta, GA 30303
Phone: (404) 407-1000
Web site: www.cousinsproperties.com
Officers: Tom Bell, Chairman/CEO; Dan DuPree, President/COO; Jim Fleming, CFO

10. Highwoods Properties

Total Office Space Developed or Under Construction: 2.4 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

10. Brandywine Realty Trust

Total Office Space Developed or Under Construction: 2.4 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

11. Forest City Enterprises

Total Office Space Developed or Under Construction: 2.3 million sq. ft.
Terminal Tower, 50 Public Square, Ste. 1100
Cleveland, OH 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

11. Hillwood

Total Office Space Developed or Under Construction: 2.3 million sq. ft.
13600 Heritage Pkwy., Ste. 200
Fort Worth, TX 76177
Phone: (817) 224-6000
Web site: www.hillwood.com
Officers: Ross Perot Jr., Chairman; Mike Berry, President, Hillwood Properties; Todd Platt, CEO, Hillwood Investments

11. Transwestern

Total Office Space Developed or Under Construction: 2.3 million sq. ft.
1900 West Loop South, Ste. 1300
Houston, TX 77027
Phone: (713) 270-7700
Web site: www.transwestern.net
Officers: Robert Duncan, Chairman; Larry P. Heard, President/CEO; Mark Doran, COO

12. Brookfield Properties Corp.

Total Office Space Developed or Under Construction: 2.2 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, Canadian Commercial Operations

12. Vornado Realty Trust

Total Office Space Developed or Under Construction: 2.2 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, Finance & Administration/CFO

13. TIAA-CREF

Total Office Space Developed or Under Construction: 2 million sq. ft.
730 Third Ave.
New York, NY 11762
Phone: (800) 842-2733
Web site: www.tiaa-cref.org
Officers: Scott Evans, EVP, Asset Management; Edward Grzybowski, CIO; Thomas Garbutt, Head of Global Real Estate

14. Mack-Cali Realty Corp.

Total Office Space Developed or Under Construction: 1.9 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

15. Koll Development Co.

Total Office Space Developed or Under Construction: 1.6 million sq. ft.
8115 Preston Rd., #700
Dallas, TX 75225
Phone: (214) 696-1700
Web site: www.kolldevelopment.com
Officers: Steve Van Amburgh, CEO; Tobin Grove, President; Murray Newton, EVP

15. Lauth

Total Office Space Developed or Under Construction: 1.6 million sq. ft.
401 Pennsylvania Pkwy.
Indianapolis, IN 46280
Phone: (866) 848-6500
Web site: www.lauth.net
Officers: Robert L. Lauth, Chairman; Gregory C. Gurnik, CEO; Michael S. Curless, President

16. Carter

Total Office Space Developed or Under Construction: 1.5 million sq. ft.
171 17th St., NW, Ste. 1200
Atlanta, GA 30327
Phone: (404) 888-3000
Web site: www.carterusa.com
Officers: Bob Peterson, Chairman/CEO; Scott Taylor, President; Jim Shelton, Vice Chairman

16. Panattoni Development Co.

Total Office Space Developed or Under Construction: 1.5 million sq. ft.
8775 Folsom Blvd., Ste. 200
Sacramento, CA 95826
Phone: (916) 381-1561
Web site: www.panattoni.com
Officers: Carl Panattoni, Chairman; Dudley Mitchell, CEO; Greg Thurman, President

17. Kilroy Realty Corp.

Total Office Space Developed or Under Construction: 1.4 million sq. ft.
12200 W. Olympic Blvd. Ste. 200
Los Angeles, CA 90064
Phone: (310) 481-8400
Web site: kilroyrealty.com
Officers: John B. Kilroy Jr., President/CEO; Jeffrey C. Hawken, EVP/COO; Richard E. Moran Jr., EVP/CFO

18. Block & Co.

Total Office Space Developed or Under Construction: 1 million sq. ft.
700 West 47th St., Ste. 200
Kansas City, MO 64112
Phone: (816) 756-1400
Web site: www.blockandco.com
Officers: Allen J. Block, Chairman; Kenneth G. Block, Principal; David M. Block, Principal

19. Lowe Enterprises

Total Office Space Developed or Under Construction: 960,000 sq. ft.
11777 San Vicente Blvd., Ste. 900
Los Angeles, CA 90049
Phone: (310) 571-4250
Web site: www.loweenterprises.com
Officers: Robert J. Lowe, Chairman; Brad Howe, Managing Director; Bleecker Seaman, Managing Director