Advisory Board

Our Advisory Board is a multi-stakeholder board made up of renowned individuals from across government, the private sector, civil society, the technology sector and development organizations. It meets twice a year and on a regular basis in its subcommittees.

Sally Guyer


Sally Guyer is Chief Executive Officer for the International Association for Contract & Commercial Management, a global membership organization enabling global public and private sector organizations and professionals to achieve world-class standards in their contracting and relationship management process and skills.

Sally is an experienced and accomplished commercial and contracts management professional, holding senior commercial positions at a range of corporate and multinational organizations. After gaining an Honors degree in Law, Sally spent her time in the corporate sector, where she worked globally in the Telecomms and IT industries, before establishing her own legal and commercial consultancy in 2007.

Sally is passionate about enabling business efficiency and growth through contracting and commercial excellence. Whether in contract development, negotiation, training or general communications, Sally has built a reputation for service excellence and responsiveness. Her focus is on the creation of positive and successful business relationships, constantly striving to ensure that businesses realize their true potential and value.

She joined OCP’s Advisory Board in 2019.

Mukelani Dimba

Vice Chair

Mukelani Dimba currently serves as the civil society co-chair of the global steering committee of the Open Government Partnership. He also serves as Head of Development of the International School for Transparency, a joint project of the University of Cape Town (South Africa) and the Södertörn University (Sweden). He has previously served as the Executive Director of the Open Democracy Advice Center (ODAC), a South African law center that specializes in freedom of information and whistleblower protection laws.

Mukelani has experience in accountability and transparency law and policy issues in South Africa, Mozambique, Malawi, Tanzania, Uganda, Ethiopia, Kenya, Nigeria, Ghana and the Democratic Republic of the Congo. His work includes advising civil society groups on campaigning for, and application of, right-to-information laws, advising legislators on drafting these laws, advising governments on implementation and monitoring strategies and conducting research on behalf of development agencies.

Mukelani is a co-founder of South Africa’s National Information Officers’ Forum. He is a member of the executive committee and advisory council of the Council for Advancement of the South African Constitution.

Maria Margarita Zuleta

María Margarita (Paca) Zuleta is a Colombian lawyer with more than 20 years of experience in project development, 19 years in the private sector and 4 years in the Colombian government. She acted as Deputy Minister of Justice and as Director of the Presidential Program against Corruption, where she wrote a complete action plan along with civil society organizations, government and private sector companies (edited in 2005). From 2012-2017, Paca was the first General Director of Colombia Compra Eficiente, the National Public Procurement Agency created by President Juan Manuel Santos. She now is the Director of the School of Governance at the University of the Andes.

Governments materialize public policy through contracts this is why contract matters to all of us. Open Contracting is about promoting the disclosure of all contracts to spend public budget and deliver goods and services to the citizens and citizens’ engagement with the contracts disclosed.

Alan Detheridge

Alan Detheridge retired from his position as Vice President for External Affairs at Royal Dutch Shell in April, 2007. Since then he has concentrated on assisting non-governmental organizations focused on good governance, health, development and cross-sector partnerships. He is a board member of the Natural Resource Governance Institute, the Natural Resource Charter and Management Sciences for Health. His previous board memberships include the Synergos Institute, Africare and the International Foundation for Education and Self-Help.

Opaque contracting leads to waste, inefficiency and corruption – none of which helps deliver goods, services and infrastructure to people in need. That’s why open contracting is so vital. Its focus on disclosure and participation helps ensure improved development outcomes for governments, citizens and companies.

Claire Schouten

Claire Schouten is Senior Program Officer, International Advocacy at the International Budget Partnership. She previously facilitated a network of civil society organisations engaged in community-driven accountability and development in fragile and conflict-affected countries. Claire has served as an advisor to several transparency and accountability initiatives, including the Open Contracting Partnership, the Open Government Partnership and the Construction Sector Transparency Initiative. Claire specialises in integrity, transparency, and accountability in public resource management, from aid and extractives to infrastructure and service delivery. She works with civil society, governments, business and development partners on action learning and capacity development, monitoring and evaluation and policy guidance. She has more than ten years of field experience, including in Africa, the Caribbean, Central and Southeast Asia, and the Middle East. Claire has published on technology for open contracting in fragile and conflict-affected states; social accountability in situations of conflict and fragility; and drivers of change in the Democratic Republic of Congo.

The Open Contracting Partnership strengthens the social contract and performance by advancing disclosure and participation in public contracting. It brings diverse reformers together to build norms, systems and standards and stimulate collective action to deliver the public goods and services people deserve. I’m proud to be part of this movement.


Jeni Tennison

Jeni Tennison is the CEO of the Open Data Institute. She worked as an independent consultant, specializing in open data publishing and consumption and including work on and linked data work for, before joining the ODI in 2012. She is a member of the UK Government’s Open Data User Group and Open Standards Board, as well as the W3C’s Technical Architecture Group and chairs the W3C CSV on the Web Working Group. Jeni was awarded an OBE for services to technology and open data in the 2014 New Year Honours.

Andrew Clarke

As a Principal at Luminate, Andrew focuses on investments in global financial transparency and also leads its work in Manchester, UK. Andrew’s experience as an advocacy and policy specialist spans both the international development and private sectors.

Andrew previously was Advocacy Manager at Publish What You Fund (PWYF), a campaign for aid transparency, where he led engagement with the US, European Union, and World Bank to increase the quantity and quality of public aid information. He also represented PWYF on the steering committee of the International Aid Transparency Initiative.

Prior to PWYF, Andrew served as Public Affairs Manager for Ranelagh International, providing strategic planning and advocacy for clients. Andrew also worked at the Overseas Development Institute on an aid harmonisation project mapping most development aid onto the Ugandan budget.

Maksym Nefyodov

Maksym has an impressive track record in the field of investments and corporate finance. He started his career as an analyst at the Kyiv-based M&A firm Golden Gate Business, later moving to Ukraine’s largest investment bank, Dragon Capital, where he was a senior associate in the investment and banking department. In 2008, he became a director of the same unit, leading the financial institutions group and technology, media and telecom teams.

Before he was appointed deputy minister at the Ministry of Economic Development and Trade of Ukraine in February 2015, Maksym served as a managing partner at the private equity fund ICON Private Equity, managing approximately $1 billion of investments in Ukraine, Russia and Europe.

At the Ministry of Economic Development, his responsibilities included public procurement reform, privatization policy, reform of state sales, deregulation, support of small and medium enterprises, and donor coordination. He is now leading the Ukrainian State Customs Service.

He holds a master’s degree with honours in economic theory from the Taras Shevchenko National University of Kyiv. He is fluent in Ukrainian, Russian and English.

Rudi Borrmann

Rudi leads, as Deputy Director,  the Open Government Partnership’s work at the local level, helping to accelerate impact and reforms where government is closer to citizens by supporting strategic national-local integration, enhancing subnational participation in OGP and improving knowledge and learning opportunities for open government reformers. Previous to this role he was Undersecretary of Public Innovation and Open Government at the Cabinet Office of Argentina from 2015 to 2019. In this position, Rudi was in charge of the National Open Government Strategy, developing Argentina’s first open data infrastructure, establishing open government reforms with three open state action plans and running LABgobAR (the National Government Lab) to support capacity building and innovation projects using user-centered design with more than 30.000 government officials involved. In 2018 he chaired the Digital Economy task force during Argentina’s presidency of the G20. In 2012 he founded the Buenos Aires Innovation Lab, led the city’s Open Government project and was part of the very first new media office of Latin America, three pioneers projects in Argentina.

Seember Nyager

Seember Nyager is currently a public policy manager at Google. Before this, she was CEO at the Public and Private Development Centre (PPDC) in Nigeria, an organization that mobilizes people to monitor and report on public procurement to improve the quality of public services. Through her organization, she successfully advocated for the adoption of the Open Contracting Data Standard by the Nigerian Government; using a platform called Budeshi to demonstrate the utility of open contracting data. During her tenure at PPDC, she introduced an annual FOI Compliance Ranking system for public institutions in Nigeria. Seember worked with partners in the region to introduce systemic CSO Public Procurement Monitoring in many countries in Sub-Saharan Africa and played a leading role in securing Nigeria’s commitment to join the Open Government Partnership. Her areas of expertise lie in the intersection of media, law & technology for social and economic development. She is particularly interested in exploring the active role of private sector organizations in making open contracting a global norm.