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.RFP No. 2019-0078/JIBRIL
Date posted24 May 2019

Provision of Software Engineering Service Support for Seismic / Hydroacoustic / Infrasound (SHI) Re-Engineering, on a Call-off Basis

Request for Proposal

Closing date22 July 2019
RFP/RFQ No.RFQ No. 2019-0081/STOMOV
Date posted23 May 2019

Passenger/Cargo Van, Multi Purpose Vehicle

Request for Quotation

Closing date11 June 2019
RFP/RFQ No.RFP No. 2019-0072/MAEDA
Date posted17 May 2019

Provision of Consultancy Services for Finance and Procurement Automation and Streamlining Project

Request for Proposal

Attachment 1 - Template for Financial Proposal

Closing date18 June 2019
RFP/RFQ No.RFQ No. 2019-0074/STOMOV
Date posted09 May 2019

SnT 2019 Posters and Panels

Request for Quotation

Closing date30 May 2019
Date posted02 May 2019

Deployable Video Surveillance and Security System for the Base of Operations and In Field Equipment

Invitation to Bid

Clarifications #1

Closing date30 May 2019

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. 

General Conditions of Contract (PDF)

General Conditions of Goods (PDF)

Please note that only requests from registered companies or organizations from CTBTO Member States (PDF) 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.

Use of former Preparatory Commission for the CTBTO (“Commission”) employees in the preparation of Proposals:

A Bidder must not, in the absence of prior written approval from the Commission, permit a person to contribute to, or participate in, any process relating to the preparation of a Proposal or the procurement process, if the person:

a. at any time during the 12 months immediately preceding the date of issue of the Solicitation was an official, agent, servant or employee of, or otherwise engaged by the Commission;

b. at any time during the 24 months immediately preceding the date of issue of the Solicitation was an employee of the Commission personally engaged, directly or indirectly, in the definition of the requirements, project or activity to which the Solicitation relates.