Colorado
COPT Interquest, LLC
COPT Interquest III, LLC
COPT Interquest IV, LLC
COPT Newport, LLC
COPT Patriot Park I, LLC
COPT Patriot Park II, LLC
Patriot Park, LLC
Airport Square Holdings I, LLC
Airport Square Holdings VI and VII, LLC
Blue Bell Investment Company, LP
COPT Acquisitions, Inc.
COPT Concourse, LLC
COPT Gateway, LP
Corporate Gateway, LP
Corporate Office Properties, LP
Corporate Office Properties Holdings, Inc.
Crown Point, L.L.C.
Delaware Airport III, LLC
Delaware Airport VIII, LLC
Delaware Airport IX, LLC
Great Mills I, L.L.C.
Great Mills II, L.L.C.
Great Mills III, L.L.C.
Great Mills IV, L.L.C.
Great Mills V, L.L.C.
Harrisburg Corporate Gateway Partners, LP
Opportunity Invest Ventures, LLC
Sterling York, LLC
South Brunswick Investors, LP
11800 Tech Road, LLC
Airport Square, LLC
Airport Square II, LLC
Airport Square IV, LLC
Airport Square V, LLC
Airport Square X, LLC
Airport Square XI, LLC
Airport Square XIII, LLC
Airport Square XIV, LLC
Airport Square XV, LLC
Airport Square XIX, LLC
Airport Square XX, LLC
Airport Square XX Parking, LLC
Airport Square XXI, LLC
Airport Square XXII, LLC
Airport Square Partners, LLC
Airport Square Storms, LLC
Ambassador Center, LLC
ASI, LLC
Atrium Building, LLC
Brown’s Wharf, LLC
Columbia Gateway S-28, LLC
Commons Office Research, LLC
Concourse 1304, LLC
COPT Arundel Preserve, LLC
COPT Development & Construction Services, LLC
COPT Gate 63, LLC
COPT Gate 6700-6708-6724, LLC
COPT General, LLC
COPT Montpelier, LLC
COPT Opportunity Invest I, LLC
COPT Property Management Services, LLC
COPT Renovation, LLC
COPT Riverwood, LLC
COPT T-11, LLC
Corporate Cooling & Controls, LLC
Corporate Development Services, LLC
Corporate Gatespring, LLC
Corporate Gatespring II, LLC
Corporate Office Management, Inc.
Corporate Office Services, LLC
Corporate Paragon, LLC
Corporate Property, LLC
Cornucopia Holdings, LLC
Cornucopia Holdings II, LLC
Enterprise Campus Developer, LLC
Fourth Exploration, L.L.C.
Fifth Exploration, L.L.C.
Ft. Ritchie I, LLC
Ft. Ritchie II, LLC
Ft. Ritchie III, LLC
Ft. Ritchie IV, LLC
Ft. Ritchie Holding, LLC
Gateway 44, LLC
Gateway 67, LLC
Gateway 70, LLC
Gateway 70 Holdings, LLC
Gateway Crossing 95, LLC
Governors Court, LLC
Governors Court 21, LLC
Honeyland 108, LLC
Jolly COPT I, LLC
Jolly COPT II, LLC
Lakeview at the Greens, LLC
M Square NOAA, LLC
MOR Forbes, LLC
MOR Forbes 2, LLC
MOR Montpelier 3, LLC
NBP One, LLC
NBP Huff & Puff, LLC
NBP Lot 3-A, LLC
NBP Retail, LLC
NBP 131-133-141, LLC
NBP 132, LLC
NBP 134, LLC
NBP 135, LLC
NBP 140, LLC
NBP 191, LLC
NBP 201, LLC
NBP 201 Holdings, LLC
NBP 211, LLC
NBP 211 Holdings, LLC
NBP 220, LLC
NBP 220 Holdings, LLC
NBP 221, LLC
NBP 302, LLC
NBP 304, LLC
NBP 306, LLC
NBP 318, LLC
NBP 320, LLC
NBP 322, LLC
Pecan Court, L.L.C.
Red Cedar Building, LLC
RIVA Trustee, LLC
Rockville Corporate Center, LLC
Rutherford 2 Limited Partnership
Tech Park I, LLC
Tech Park II, LLC
Tech Park IV, LLC
Third Exploration, L.L.C.
67 Financing, LLC
110 Thomas Johnson Drive, LLC
134, LLC
226 Schilling Circle, LLC
230 Schilling Circle, LLC
304 Sentinel, LLC
2500 Riva Trust
2691 Technology, LLC
2900 Lord Baltimore Drive, LLC
6700 Alexander Bell, LLC
6711 Gateway, LLC
6711 Gateway Funding, LLC
6721 Gateway, LLC
6731 Gateway, LLC
6741 Gateway, LLC
6940 CGD, LLC
7000 CG, LLC
7000 Honeys, LLC
7015 Albert Einstein Drive, LLC
7130 Columbia Gateway, LLC
7200 Riverwood, LLC
7210 Ambassador Road, LLC
7240 Parkway Drive Enterprises, LLC
7253 Ambassador Road, LLC
7318 Parkway Drive Enterprises, LLC
7320 Parkway Drive Enterprises, LLC
7320 PD, LLC
7321 Parkway Drive Enterprises, LLC
7468 Candlewood Road, LLC
8621 RFD, LLC
8661 RFD, LLC
9690 Deereco Road, LLC
COPT Princeton South, LLC
Cuaba Associates, L.L.C.
Princeton Executive, LLC
68 Culver, LLC
Route 46 Partners, L.L.C.
Bolivar Associates, LLC
COPT Pennlyn, L.P.
COPT San Antonio General, LLC
COPT San Antonio, LP
COPT Chantilly, LLC
COPT Chantilly II, LLC
COPT Dahlgren, LLC
COPT Dahlgren I, LLC
COPT Dahlgren II, LLC
COPT Dahlgren IV, LLC
COPT Dahlgren Land, LLC
COPT Greens I, LLC
COPT Greens II, LLC
COPT Greens III, LLC
COPT Park Meadow, LLC
COPT Parkstone, LLC
COPT Ridgeview I, LLC
COPT Ridgeview II & III, LLC
COPT Stonecroft, LLC
COPT Sunrise, LLC
COPT Waterview I, LLC
COPT Waterview III, LLC
TRC Pinnacle Towers, L.L.C.
2900 Towerview Road, LLC