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Greyhawk’s directors have built, trained and led market-leading teams in both global advisory firms and leading risk consultancies. They offer over 30 years of international experience for the benefit of Greyhawk clients.


Steven Haynes has over twenty years of intelligence experience. Between 1997 and 2005, he worked at Control Risks Group, where he was head of intelligence for Africa and the Middle East. Between 2005 and co-founding Greyhawk in 2012, he was Director of Corporate Intelligence at KPMG. He co-wrote the firm’s Global Corporate Intelligence methodology and trained KPMG Forensic teams worldwide.

He has provided political risk, due diligence and investigation services to three of the top five international oil companies and eight of the top ten global investment banks. His experience includes supporting the largest foreign direct investments into Nigeria and South Africa respectively. He has worked “on the ground” in many emerging and frontier markets, including Russia, Ukraine, Bulgaria, India, Nigeria, Kenya, Angola, Sierra Leone, Egypt, Jordan, Iraq and Lebanon.

Between 1988 and 1997, he was a journalist, latterly with the Sunday Times, where he worked on the paper’s Insight investigations team.


Since co-founding Greyhawk in 2012, Edward has been the lead investigator in over 60 cross-border disputes and enforcement actions including in the context of investor-state arbitration, civil fraud and contentious insolvency. Recent cases include acting for a state to identify over $100m of assets stolen by a corrupt official; identifying enforcement options for an investor with an ICSID award against a sovereign state; and acting for creditors pursuing the personal assets of company directors following a $200m fraud. The majority of this work is international and often involves an offshore element. He has also assisted in-house counsel to investigate allegations of corruption and fraud made by whistleblowers.

Edward also acts for investors in a range of non-contentious situations. This includes regular integrity due diligence assignments for debt funds acquiring commercial NPL portfolios across Europe and for three development finance institutions evaluating investments in higher-risk markets.

Prior to co-founding Greyhawk in 2012, Edward worked in the Forensics department at PwC in London and Hong Kong where he led the intelligence workstream on one of the largest banking frauds to be tried in the English courts. Before that he spent four years at KPMG, where he helped to establish its corporate intelligence function and supported a range of cross-border fraud and corruption investigations. He was also responsible for coordinating due diligence globally for one of Europe’s largest sovereign wealth funds. Between 2000 and 2006, he worked for a leading international investigations firm where he managed integrity due diligence for banking, energy and private equity clients. He has worked extensively in west Africa, Asia and the CIS.


Marc Leppard is a senior ethics and compliance professional with 25 years’ experience of cross-border investigations and business integrity matters. He became an advisor to Greyhawk in 2019.

Between 2014 and 2016 Marc was Global Head of Business Integrity at BP Plc. During this time he built and led BP’s group-wide investigation programme covering 75,000 employees in over 70 jurisdictions. He managed sensitive investigations in many countries including China, India, Russia, Azerbaijan, Angola and Brazil.

Previously Marc led the Ethics and Compliance function for BP’s downstream and trading businesses for eight years. He was responsible for many group-wide programmes, including BP’s “whistle-blower” programme, managing bribery and corruption risk in respect of agents, anti-money laundering and sanctions controls. He developed compliance programmes for the oil trading business and led the implementation of appropriate compliance policies following a trading manipulation case brought by the US Department of Justice.

Prior to BP, Marc was head of compliance at Credit Lyonnais Rouse and ING Derivatives. He speaks regularly at conferences on investigations and ethics matters.


Artur joined Greyhawk in 2016. His work includes in-depth due diligence of the background and probity of Spanish debt and equity issuers on behalf of investment banks and supporting debt funds investing in Spain’s distressed real estate market. His asset tracing work has covered multiple European and Latin American jurisdictions.

Artur holds a Master of Science degree in International Relations from the London School of Economics and a BA in History (First Class) from University College London. He speaks Spanish and Catalan.


Gabriel joined Greyhawk in 2016. He has developed Greyhawk’s use of coding, webscraping and other technologies for use in both fraud and asset tracing investigations. In a notable recent case Gabriel used social media forensic tools to demonstrate that attacks on a client company by an online NGO were in reality a disinformation campaign funded by a commercial rival.

Gabriel speaks French, Spanish, and Portuguese. He studied European Politics and Spanish at University College London.


Alison joined Greyhawk in 2017 and specialises in the Middle East and North Africa. She has contributed to a wide range of integrity due diligence and market entry assignments in the region. Alison has also led asset tracing and evidence gathering investigations in the context of large, cross-border disputes.

Alison graduated from the University of Oxford with a first class degree in European and Middle Eastern Languages. She speaks Arabic and French.


Freddie joined Greyhawk in 2019 having previously worked for a leading corporate intelligence firm for three years. During this time, he led multiple due diligence assignments on behalf of financial services and corporate clients.

Freddie has also worked extensively in the context of cross-border disputes. He has led several asset tracing and intelligence gathering assignments, particularly in Europe and Africa.

Freddie speaks Italian.  He studied Geography at the University of Bristol.

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