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Our Team
Meet Our CFO Leadership Team with Global Experience
Our senior partners bring over 60 years of combined CFO-level experience across wealth management, private equity, corporate finance, and family office services. From our Dubai headquarters, we provide Ultra-High-Net-Worth families globally with institutional-grade financial leadership, governance, and personalized oversight.
Assets Under Management Experience: $ 11.5+ Billion Global Experience: Europe, Asia, the Americas, Middle East Educational Excellence: Harvard Business School, Moscow State University
Dr. Andrei Marcenco is a seasoned wealth management and corporate finance professional with over 20 years of experience serving High-Net-Worth individuals and institutional clients across global markets.
Dr. Marcenco's deep experience in managing substantial assets and his academic background in economics provide Octagon clients with sophisticated investment strategies and risk management expertise typically available only to the world's largest family offices.
KEY EXPERIENCE & ACHIEVEMENTS:
• Chief Investment Officer an investment company managing $6 billion in assets under management • Senior roles at Renaissance Capital (a leading emerging markets investment bank) and Deloitte (Big Four advisory) • Specialized in mergers & acquisitions transactions and initial public offerings (IPOs) • Member of the leading companies in the energy and aquaculture sectors • Proven track record in portfolio management for Ultra-High-Net-Worth families
• PhD in Economics, Moscow State University • 20+ years experience in wealth management and corporate finance • Expert in private equity, public markets, and alternative investments
With over 13 years of experience in private equity and M&A, Anatoly has led investment projects exceeding $ 1 billion across international markets. He previously held senior investment roles at Dubai Holding Investments, Gleden Invest, and Invest AG, managing complex transactions and investment strategies across the UAE, CIS, Europe, and the US. His expertise covers the full investment lifecycle, from deal structuring and capital raising to portfolio management, strategic asset growth, and successful exits.
Managing Director
Maxim Dulenko
Head of Legal
Mohannad Ibragim Shreef
With over 15 years of experience in government relations and corporate services in the UAE, Mohannad specializes in company formation, immigration procedures, residency visas, and regulatory compliance. Having previously served as Public Relations Manager at the Private Office of H.H. Sheikh Nahyan bin Hamdan Al Nahyan, he brings extensive experience working with government authorities across Dubai, Abu Dhabi, and other emirates. At OCTAGON, he supports clients with business licensing, Golden Visa applications, document legalization, and government approvals, ensuring efficient administrative processes and smooth interactions with UAE authorities.
Public Relations Official
Sabina Doskaliyeva
Senior Client Relationship Manager
Stas Kossovskiy
With over 18 years of experience in private banking, alternative investments, and financial services, Stas specializes in business development, strategic partnerships, and cross-border financial solutions for UHNW clients and family offices. He has successfully established private banking divisions at three banks, attracting billions of rubles in new assets and developing investment products. His expertise spans capital raising, private equity, private credit, and international wealth structuring, with a strong focus on building banking relationships and investment partnerships across the UAE, Switzerland, the UK, and other markets.
Head of Business Development
Trusted Partners
Our trusted partners bring focused expertise in areas where clients need additional strategic, investment, or advisory support.
Ekaterina Chernova
Investment, private equity, and multi-family office advisory through OKTA Capital
Ekaterina Chernova is a trusted external partner of Octagon, advising on investment, private equity, corporate finance, and multi-family office matters through OKTA Capital
Combined Team Expertise
60+ Years of experience in wealth management and family office services $11.5+ Billion in assets under management experience Global Reach across Europe, Asia, the Americas, the Middle East, and Africa Elite Education including Harvard Business School and advanced degrees Industry Recognition through board positions and thought leadership
PROFESSIONAL CREDENTIALS: • ACCA • PhD in Economics • Harvard Business School Executive Education • Big Four Experience (PwC, Deloitte) • Investment Banking Experience (Renaissance Capital, Credit Suisse)
Why CFO-Level Experience Matters in Family Office Services
Proven Track Record
Our team has overseen more than $11.5 billion in assets, delivering CFO-level control, reporting discipline, and strategic oversight across complex wealth structures.
Local Knowledge
Based in Dubai, our team combines deep knowledge of UAE regulations and Middle East markets with CFO-level oversight aligned to global standards.
Global Perspective
With experience across multiple continents and market cycles, our team brings a CFO’s view on international wealth management, risk exposure, and cross-border structuring.
Institutional Expertise
Having worked at leading investment banks, private equity firms, and consulting companies, our team applies institutional-grade financial governance, controls, and decision frameworks to family office operations.
Frequently Asked Questions About Our Team
A: Our team combines over 60 years of experience managing $11.5+ billion in assets with deep local UAE knowledge and global perspective.
A: Yes, our founders have directly managed multi-billion dollar family office operations and served UHNW clients globally.
Our team includes Harvard Business School graduates, PhD holders, and ACCA qualified professionals with elite institutional experience.
A: Our combined experience across Europe, Asia, the Americas, and the Middle East enables us to provide sophisticated cross-border solutions and identify global opportunities for our clients.
A: Our team has deep experience in energy, aquaculture, marine proteins, renewable energy, technology, and financial services sectors.
Ready to work with our experienced team?
Contact us for a confidential consultation about your family office needs.