This is the list of current procurement tender(s) open for proposals in the Preparatory Commission for the CTBTO. Please visit this site from time to time for information on new procurement tenders.

RFP/RFQ No.RFQ No. 2014-0283/SOW
Date posted19 August 2014

Maintenance extension for the VMware for period starting 16 August 2014 till 28 December 2016

Request for Quotation

Initiates file downloadClarification No. 1

Closing date29 August 2014
RFP/RFQ No.RFP No. 2014-0234/SOW - RE-OPENED
Date posted15 August 2014

CISCO Smartnet Hardware Maintenance

Request for Proposal

Closing date05 September 2014

Additional information

If you are not yet registered with our organization, kindly fill in our Vendor Profile Form (Word Document) and return it either electronically to or via post to Chief, Procurement Section,  CTBTO, Vienna International Centre Wagramerstrasse 5, P.O. Box 1200, A-1400 Vienna, Austria.  Further information for potential vendors can be found in Annex I, Annex II, Annex III and in our General Conditions of Contract (Word Document). Please note that only requests from registered companies or organizations from CTBTO Member States (Word Document) will be considered.

In addition, if you wish to be included in the CTBTO mailing list, please contact the Procurement Section of CTBTO at You will then be informed of new tenders via Email as soon as they are issued.