Monaem Ben Lellahom

Monaem Ben Lellahom is an ESG, sustainability, and climate change operator, a boardroom strategist, and a legacy builder.

He is the co-founder and Group CEO of Sustainable Square, a firm he built from the ground up with no debt and no external capital. Under his leadership, Sustainable Square evolved into a hybrid model that blends strategic advisory with AI-powered sustainability technology, operating across more than nine countries and delivering some of the region’s most complex ESG, climate, and sustainable finance mandates.

With over 20 years of hands-on experience, Monaem is known for leading with facts, operating on data, and maintaining an uncompromising focus on value creation. His work has earned the trust of boards, regulators, investors, and senior executives who rely on his ability to cut through noise and translate sustainability into financial relevance, risk management, and long-term resilience.

Beyond advisory and technology, Monaem is deeply engaged in shaping thinking at the intersection of capital markets, regulation, and sustainability. He regularly advises boards, supports institutions navigating regulatory change, and contributes to regional conversations on sustainable finance and governance. As a guest lecturer at leading universities, he brings real-world boardroom and market experience into academic environments, challenging theory with execution and lived complexity.

Monaem is also an author. His book, The Hidden Balance Sheet: Blending Financials and Non-Financials, examines how modern value is created beyond traditional financial statements. The book connects ESG, sustainability, and climate considerations directly to financial performance, capital allocation, risk exposure, and long-term valuation—grounded in market logic rather than ideology.

At the core of his work is a single principle: legacy over vanity.

His mornings start at the gym. His days are driven by product, clients, and strategy. His evenings are reserved for his wife and children. Balance, he believes, is temporary. Legacy is permanent.

And somewhere between building companies, advising boards, and writing, he grinds his own coffee beans—an amateur barista by choice, because even legacy builders understand the value of starting the day right.