Contact Us

To contact CSIS by mail:

National Headquarters Ottawa:

CSIS
PO BOX 9732 STN T
OTTAWA ON  K1G 4G4

CSIS - Location
1941 OGILVIE RD
OTTAWA ON  K1J 1B7

Telephone: 613-993-9620
Fax: 613-231-0612
TTY: 613-991-9228 (24hrs)

• Media and Public Liaison Contacts
• Filing a Complaint

CSIS Regional Office Addresses and Phone Numbers

Atlantic Region:

CSIS
PO BOX 126 STN CENTRAL
HALIFAX NS  B3J 3K5

Telephone: 902-420-5900

Atlantic Region / New Brunswick District:

CSIS
PO BOX 6010 STN A
FREDERICTON NB  E3B 5G4

Telephone: 506-452-3786

Newfoundland and Labrador District:

CSIS
PO BOX 2585 STN C
ST. JOHN'S NL  A1C 6J6

Telephone: 709-724-8650

Québec Region:

CSIS
PO BOX 2000 STN A
MONTRÉAL QC  H3C 3A6

Telephone: 514-393-5600

Québec Region / Québec City District:

CSIS
PO BOX 10043 STN SAINTE-FOY
QUÉBEC QC  G1V 4C6

Telephone: 418-529-8926

Ottawa Region:

CSIS
PO BOX 9732 STN T
OTTAWA ON  K1G 4G4

Telephone: 613-998-1679

Toronto Region:

CSIS
PO BOX 760 STN A
TORONTO ON  M5W 1G3

Telephone: 416-865-1480

Prairie Region (Alberta/Saskatchewan/Manitoba/Thunder Bay):

CSIS
PO BOX 47009
62 CITY CENTRE
EDMONTON AB  T5J 4N1

Telephone: 780-401-7800

Prairie Region / Calgary District:

CSIS
PO BOX 2671 STN M
CALGARY AB  T2P 3C1

Telephone: 403-292-5255

Prairie Region / Saskatchewan District:

CSIS
PO BOX 5089 STN MAIN
REGINA SK  S4P 4B2

Telephone: 306-780-5512

Prairie Region / Manitoba District:

CSIS
PO BOX 771 STN MAIN
WINNIPEG MB  R3C 4G3

Telephone: 204-954-8120

British Columbia Region:

CSIS
PO BOX 80629 STN SOUTH
BURNABY BC  V5H 3Y1

Telephone: 604-528-7400