Sustain+PFM: Strengthening accountability for climate, fiscal, and sustainability outcomes
Sustain+PFM: Strengthening accountability for climate, fiscal, and sustainability outcomes
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Sustain+PFM is an independent public sector advisory practice combining expertise in public financial management, performance audit, public sector financial reporting, climate governance and institutional reform. Drawing on senior leadership roles in Supreme Audit Institutions, international organisations and the accountancy profession, we help governments and development partners strengthen accountability, fiscal resilience and public sector performance.
Sustain+PFM brings together under one roof experience of European institutions, the United Nations system and development programmes across Africa, Asia, Europe and Latin America. This breadth enables us to work across institutional and professional boundaries that are often addressed separately, connecting public financial management, audit, financial reporting and climate governance into coherent approaches to reform.
Synthesis
Synthesis
connecting public financial management, climate policy, and audit disciplines into unified frameworks
Synergy
Synergy
helping public bodies align financial management, reporting, audit and governance
Simplicity
Simplicity
turning complex international governance challenges into practical, decision-ready tools
We provide grounded advisory services, framework development and technical support for public finance systems and climate governance. Our work includes climate audit, sustainability reporting, fiscal sustainability, public financial management reform, institutional strengthening and the application of emerging technologies, including AI and Earth observation, to public oversight.
Our approach combines performance audit, public economics and practical implementation experience. We help public bodies strengthen accountability, oversight and implementation capacity through strategic advice, technical guidance, training and support for governance and reform programmes.
Peter Welch, Lead Consultant
Sustain+PFM S.à r.l.-s, Luxembourg
Authoring UN guidance on climate change audit
Authoring UN guidance on climate change audit
Lead author of the UNDP Good Practice Guide on Climate Change Performance and Compliance Audits, turning international audit experience into practical methodologies for SAIs worldwide.
Published in June 2026, Making a Difference distils evidence from audit reports worldwide, helping auditors improve climate audit and identify emerging fiscal risks.
Better information for better decisions
Better information for better decisions
Financial reporting, climate accountability and budgeting should work together to strengthen institutional capability.
We support reforms in public sector financial management and reporting and in sustainability reporting so that governments can make better informed, long-term decisions. Well-designed accountability helps institutions respond to emerging challenges.
Evidence and understanding for better audit impact
Evidence and understanding for better audit impact
Strong audits -financial, performance, or climate - combine technical evidence with practical understanding.
Findings are most useful when they are grounded in operational and economic realities, linked to institutional incentives, and demonstrate the need for change.
We help SAIs and internal auditors to achieve greater impact.
Focus areas
Focus areas
Climate, Environment and Fiscal Resilience
Climate, Environment and Fiscal Resilience
Supporting governments and oversight institutions in assessing the fiscal, institutional and governance implications of climate change and transition, including adaptation, sovereign exposure, long-term liabilities and policy coherence.
Public Financial Management and Institutional Reform
Public Financial Management and Institutional Reform
Strengthening public financial management, governance, institutional capability and reform, with a focus on how incentives, information and accountability shape public sector performance.
Public Sector Reporting and Accountability
Public Sector Reporting and Accountability
Helping public bodies improve financial and sustainability reporting, accounting modernisation, materiality, transparency and accountability mechanisms, including the implications of new international standards for governments and public bodies.
Audit, Oversight and Institutional Performance
Audit, Oversight and Institutional Performance
Enhancing audit and oversight approaches, institutional capability and the use of evidence to assess performance, improve accountability and support better public decision-making.
Data, Technology and Evidence
Data, Technology and Evidence
Applying AI, Earth observation and other emerging sources of data to strengthen public financial management, audit, oversight and institutional decision-making.
Recent activities
Recent activities
SIGMA event in Skopje
SIGMA event in Skopje
Moderator — Panel discussion with SAIs of Moldova, Turkey, and Serbia on energy policy, fiscal challenges, and health
EUROSAI WGEA in Madrid
EUROSAI WGEA in Madrid
Speaker — Presentation to EUROSAI Working Group on Environmental Auditing on remote-sensing, AI, and audit and applying the UNDP Guide
Public Finance Live in London
Public Finance Live in London
Panellist - with Radhi Al-Hamadeen (President, Audit Bureau of Jordan), Hege Larsen (CIPFA) and Mark Funkhouser (International Center for Performance Auditing)
UNDP Guide launch in Bangkok
UNDP Guide launch in Bangkok
Keynote speaker - launch of the UNDP Good Practice Guide on Climate Change Performance and Compliance Audits in Bangkok
Contact Sustain+PFM
Contact Sustain+PFM
To discuss ideas, future events and projects, and strategic advisory availability, institutional training, or technical support, please contact Peter Welch.
To obtain information on rates and specific availability, or to join our mailing lists, contact
Email: info@sustainpluspfm.com.
Sustain+PFM S.à r.l.-S. | Luxembourg
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