Defined by experience
A team of bankers, diplomats, and industry experts
About the firm
Where Our Judgment Comes From
Abbert Capital is a private investment firm. We invest on behalf of family offices and private institutional capital. Our partners came from investment banking, diplomacy, engineering, and operating roles, and that range is the point. We pair sector knowledge with advanced analytical discipline to direct capital into carefully selected assets. We target sustainable growth and predictable returns. The same bench supports a strategic advisory practice serving the companies we back and a small number of outside clients. Abbert Capital invests in companies applying artificial intelligence to industrial, energy, and enterprise problems.
Our team
Leadership
Harry Fleming
Chairman & Founder
35+ years in legal and business experience. Led multiple public company IPOs and served as CEO, CFO, and General Counsel at public and private companies focusing on healthcare and energy sector turnarounds.
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Joseph Fleming
CEO & Managing Partner
Integrates corporate finance with geopolitical expertise as lead strategic advisor. Recently spearheaded a $7.5 billion cross-border energy transaction and has advised sovereign governments including Pakistan, Libya, and Yemen.
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Ken Manget
CIO
As CIO, leads all investment and fundraising efforts at Abbert Capital. Previously Global Head of Relationship Investing at Ontario Teachers' Pension Plan, managing a $10 billion portfolio, and originated over $30 billion in capital funding programs.
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Özer Öz
Partner, Abbert Development
Three decades in global industry, trade relations, and cross-border investment. Former COO of Yıldırım Holding, a major Turkish multinational operating across 50+ countries in mining, energy, and logistics.
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Matthew Bryza
Partner
Former U.S. Ambassador to Azerbaijan with a 23-year diplomatic career. Served as Deputy Assistant Secretary of State covering Turkey, Central Asia, and the South Caucasus, and directed Caspian Basin energy security policy.
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Brendan Fleming
Managing Partner & General Counsel
Principal focusing on investment underwriting and advisory services. Previously at Husch Blackwell LLP representing commercial banks, private equity firms, and business owners on complex finance, corporate, and real estate transactions.
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Yadel Oskan
Partner
Lifelong entrepreneur and investor with two decades of executive leadership. Founded IQ TRAVEL, growing it into a premier international tourism operator before its acquisition by FTI Group. Expanded into international energy as a principal investor since 2004.
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Hakan Kabalak
Partner
Over three decades as a real estate developer and industrial power specialist, executing large-scale residential, commercial, and industrial projects. Led project development for a large-scale gas-fired power plant in Central Asia and a major mining operation in Turkey.
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Omar Qandeel
Partner, Tokyo
Leads the firm's Japanese advisory practice, specializing in bridging European and Asian corporations with markets in the Middle East and North Africa. Previously conducted research for Saudi Aramco and represented Saudi Arabia at the World Meteorological Organization.
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Ronald Gualy
Managing Director, Abbert Development
Experienced executive in energy, renewables, technology, and engineering. Spent most of his career with large EPC companies including Foster Wheeler and Kellogg Brown & Root, with a strong focus on Asia and Latin America.
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Ed McMullen
Senior Advisor
Former U.S. Ambassador to Switzerland and Liechtenstein (2017–2021). Over 30 years in public policy, politics, and business. Cultivated the strongest bilateral U.S.–Swiss relationship in history and grew Switzerland from the 8th to 6th largest foreign direct investor in the U.S.
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Tom Foster
Senior Advisor
30 years of federal and cross-border taxation practice at Exxon, specializing in international, state, and local taxation. Served on multiple NYSE board positions and coordinated major industry tax litigation, including cases before the U.S. Supreme Court.
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Al-Sadeg Allab
Senior Advisor
Libyan political figure and civil engineer with four decades of experience in government, diplomacy, and economic development across the Middle East, North Africa, and Europe. Former Chief of Staff at Libya's Ministry of Economy and Trade and Chairman of the state-owned Ghadames Oil Services Company.
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Ali Turanli
Venture Capital Associate
Ali Turanli is a Venture Capital Associate at Abbert Capital, focusing on deal sourcing and market intelligence across emerging markets, energy, and infrastructure sectors.
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