Construction Sector Transparency Initiative (CoST)


Countries of operation: 
United Kingdom (HQ) — Global
Afghanistan, El Salvador, Ethiopia, Guatemala, Honduras, Malawi, Philippines, Tanzania, Uganda, Ukraine, Vietnam, Zambia
Construction - Public works
Collective Action Type: 
Integrity Pacts

Multinational companies, NGOs


CoST is a country-centred multi-stakeholder initiative designed to promote transparency and accountability in publicly financed construction.

Further information


CoST was initiated by the United Kingdom’s Department for International Development in 2007. Drawing on the experience of the Extractive Industries Transparency Initiative (EITI), a conceptual design for CoST was prepared and a pilot exercise was launched in April 2008 with technical support from the World Bank. This pilot exercise covered a varied mix of countries and sectors of focus, with the primary goal being to promote multi-stakeholder approaches to construction projects, incorporating accountability and transparency. Multi-stakeholder groups (MSGs) were created in each pilot country, each appointing a coordinator and consisting of representatives from government, the private sector and civil society. The three main activities undertaken in the pilot countries comprise the main components of the CoST transparency approach today: Performing a baseline study which examines the local construction sector, laws and regulations relating to public administration and transparency, as well as relevant institutions and initiatives related to governance in the country in question. Key project information from a sample of recently completed infrastructure projects is also analysed as part of this study. The disclosure process in a few procuring entities is tested, assembling a list of key project information from a sample of current ongoing projects before disclosing this information publicly. Finally, an assurance review of the disclosed project information is undertaken, identifying causes for concern and releasing the findings to the stakeholders and the public.

Membership organization structure: 

The CoST framework contains several features which are then applied and adapted within the specific country context, with disclosure, assurance and a multi-stakeholder approach being the three essential elements.

Is the collective action initiative open to other companies?: 
How can they join?: 
Countries wishing to join CoST must first take part in an engagement period, consisting of informal engagement and assessment based on local circumstances with the CoST International Secretariat. Information gathering, and learning about CoST, and assessing the level of interest in the specific country for the international programme are also duties of the applicant country.


 Further information and documentation for the application process can be found at
  • Improve the value for money spent on the construction of public infrastructure
  • Achieve the delivery of good quality infrastructure projects at lower cost
  • Improve the use of funds in public construction, resulting in better and more reliable infrastructure
  • Freeing savings to extend social and economic services
  • Raising investor confidence