SUBSIDIARIES OF THE REGISTRANT
a) CoStar Realty Information, Inc., a Delaware corporation
b) CoStar Limited, a U.K. company
c) CoStar UK Limited, a U.K. company
d) Grecam S.A.S., a France Societée par Actions Simplifiée
e) CoStar Portfolio Strategy, LLC, a Delaware limited liability company
f) Property and Portfolio Research Ltd., a U.K. company
g) CoStar Realty Information Canada Ltd., a British Columbia company
h) CoStar International LLC., a Delaware limited liability company
i) CoStar Field Research, LLC, a Delaware limited liability company
j) Realla Ltd., a U.K. company
k) CoStar Europe Ltd., a U.K. company
l) CoStar España, S.L., a Spanish company
m) Thomas Daily GmbH, a German company
n) Off Campus Partners, a Delaware limited liability company
o) STR, LLC, a Delaware limited liability company
p) STR Global Ltd., a UK company
q) The Screening Pros, LLC, a California limited liability company
r) STR Global Singapore Private Limited
s) STR Germany GmbH
t) STR Benchmarking Solutions (Beijing) Co., Ltd.
u) Cozy Services, LLC., a Delaware limited liability company
v) Cozy Insurance Services, LLC, a Florida limited liability company
w) STR Global Iberica, S.L.
x) STR Columbia SAS
y) LJ Research Ltd.
z) STR Australia Pty Ltd.