1. Hines 2800 Post Oak Blv ,50th Floor Houston, TX 77056-6118 Tel: 713 621-8000; FAX: 713 966-2053 Website: www.hines.com Sq. ft. office under const. in '98: 40,420,000 % office total under const. in '98: 88% Officers: Gerald D. Hines, Chairman; Jeffrey C. Hines, Pres.; Louis S. Sklar, Exec. V. P.; Kenneth W. Hubbard, Exec. V.P.; C. Kevin Shannahan, Exec. V.P.; E. Staman Ogilvie, Exec.V.P.; James C. Buie, Exec. V.P.; Michael J.G. Topham, Exec. V.P.; C. Hastings Johnson, Exec.; Clayton T. Stone, Exec. V.P.; David Kelley, Sr. V.P. Leasing; Ann McGonigle Kifer, V.P. Mktg./Corp. Comm.; John A. Harris, Exec. V.P. Design and Const.

2. Mack-Cali Realty Corp. Cranford, NJ 07016 Tel: 908 272-8000; FAX: 908 272-6755 E-mail: mack-cali@mack-cali.com Website: www.mack-cali.com Sq. ft. office under const. in '98: 27,500,000 % office total under const. in '98: 98.60% Officers: Thomas A. Rick, CEO; Mitchell E. Hersh, Pres./COO; John R. Cali, Executive V.P.; James Nugent, Senior V.P. Leasing; Virginia Sobol, Director of Marketing and P.R.; Barry Lefkowitz, Exec.V.P. and CFO

3. CarrAmerica Realty Corp. 1850 K Street N.W. Suite 500 Washington, DC 20006 Tel: 202 729-7500; FAX: 202 729-1150 Website: www.carramerica.com Sq. ft. office under const. in '98: 22,500,000 % office total under const. in '98: 100% Officers: Thomas A. Carr, Pres./CEO; Robert Peterson, Mng. Dir., Dev.; Kent Gregory, Managing Dir. of Nat'l Accts.; Karen Widmayer, V.P. Corporate Communications; Philip Hawkins, Chief Operating Officer

4. Gale & Wentworth LLC 200 Campus Dr. Ste. 200 Florham Park, NJ 07932 Tel: 973 301-9500; FAX: 973 301-9501 E-mail: gw@galewent.com Website: www.galewent.com Sq. ft. office under const. in '98: 20,200,000 Goal for office for 1999: 25,000,000 Officers: Stanley C. Gale, Principal; Finn Wentworth, Principal; Mark Yeager, Pres. Comm. Group; Donald Slaght, COO; Kathy Wielkopolski, CFO

5. Shorenstein Company, L.P. 555 California St. San Francisco, CA 94104 Tel: 415 772-7000; FAX: 415 986-8461 Sq. ft. office under const. in '98: 19,350,000 % office total under const. in '98: 98.50% Officers: Douglas Shorenstein, Chairman & CEO; Eric Yopes, Vice Chairman/Investments; John Grassi, Vice Chairman/Capital Transactions; Glenn Shannon, Sr. Managing Dir.; Richard Chicotel, Sr. V.P. & CFO; James Christian, V.P./Dir. of Portfolio Mgmt.

6. Duke Realty Investments 8888 Keystone Crossing, Ste. 1200 Indianapolis, IN 46240 Tel: 317 808-6000; FAX: 307 808-6794 E-mail: webmaster@dukereit.com Website: www.dukereit.com Sq. ft. office under const. in '98: 16,700,000 % office total under const. in '98: 28% Goal for office for 1999: 20,900,000 % of total goal that is office for '99: 28.50% Officers: Thomas L. Hefner, Chairman/ Pres./CEO; Darell E. Zink, Exec. V.P./CFO; Dennis D. Oklak, Exec. V.P./CAO; William E. Linville, Exec. V.P. Industrial; Richard W. Horn, Exec. V.P. Office; Robert M. Chapman, Exec. V.P. Acquisitions; Gary A. Burk, Pres. Duke Construction; John Nemecek, Pres. Asset/Property Mgmt.

7. Prentiss Properties Trust 3890 W. Northwest Hwy., Ste. 400 Dallas, TX 75220 Tel: 214 654-0886; FAX: 214 654-5818 E-mail: www.ppline.com Sq. ft. office under const. in '98: 14,300,000 % office total under const. in '98: 61% Officers: Michael V. Prentiss, Chairman/CEO; Thomas F. August, Pres./COO; Dennis J. DuBois, Exec. V.P./Managing Director; Duane Henley, Sr. V.P./Nat'l Director of Leasing; Ric Ross, V.P. Mktg./Corp. Comm.; Jerry A. Mays, V.P. Design and Const.; Thomas P. Simon, V.P. Asset Mgmt.

8. Charles E. Smith Companies 2345 Crystal Drive Arlington, VA 22202 Tel: 703 920-8500; FAX: 703 769-1301 Website: www.smithreit.com Sq. ft. office under const. in '98: 12,700,000 % office total under const. in '98: 34.40% Goal for office for 1999: 13,500,000 % of total goal that is office for '99: 33.60% Officers: Robert H. Smith, Co CEO; Robert P. Kogod, Co CEO; Alfred Neely, Senior V.P.; Kenneth L. McVearry, Executive V.P.; John M. Kurtz, Senior V.P.; Brent W. Kurtz, Exec. V.P. Commercial; John Gray, Sr. V.P. Residential

9. CMD Realty Investors, Inc. 227 W. Monroe St. Ste. 3900 Chicago, IL 60606 Tel: 312 726-3121; FAX: 312 726-9473 Sq. ft. office under const. in '98: 10,250,000 % office total under const. in '98: 100% Goal for office for 1999: 11,500,000 % of total goal that is office for '99: 100% Officers: Steven Ellenbogen, Pres.; Richard Schaller, Exec. V.P. Asset Dev.; James Higley, Sr. V.P.Leasing/Mktg./Corp. Comm.; Ralph Cincinelli, VP, Design/Const.

10. Opus Group of Companies 10350 Bren Road West Minneapolis, MN Tel: 612 656-4444; FAX: 612 656-4755 E-mail: rick.page@opus-group.com Website: www.opuscorp.com Sq. ft. office under const. in '98: 9,955,111 % office total under const. in '98: 42.25% Goal for office for 1999: 9,707,819 % of total goal that is office for '99: 40.19% Officers: Gerald Rauenhorst, Chairman of the Board, Opus group of companies; Keith Bednarowski, Pres./CEO Opus Corp.; Mark Rauenhorst, Pres./CEO Opus Northwest ; Joe Rauenhorst, Pres./COO Opus East L.L.C.; Neil Rauenhorst, Pres./CEO Opus South Corp.; Thomas Roberts, Pres./CEO Opus West Corp.; Jack Crocker, Pres./COO Opus North Corp.