From Rwathia to the pinnacle of finance: the story of Jimnah Mbaru

The Godfather of Investment Banking

Today, I want to take you to Rwathia Village in Murang’a County and into the life of a man whose journey from selling scones to shaping East Africa’s capital markets reads like a masterclass in vision, grit and strategic brilliance. His name is Jimnah Mbaru and among his peers, he is known as the Godfather of Investment Banking.

Born on July 26, 1947 to working class parents, Mbaru’s beginnings were humble. But from an early age, he displayed an instinctive understanding of commerce. As a primary school pupil, he sold scrap metal. By the time he reached secondary school, he had upgraded to selling scones, buying 15 for a shilling and selling each at 10 cents. It was a modest trade but the margins, discipline and foresight hinted at the financier he would become.

Academic Brilliance Meets Practical Instinct

Mbaru’s entrepreneurial drive was matched by academic excellence. He attended Kirogo Secondary School before joining the University of Nairobi, where he graduated with a Bachelor of Commerce in 1971. Determined to sharpen his global outlook, he pursued an MBA at IMD Lausanne in Switzerland, one of the world’s top business schools.

Not done yet, Mbaru returned to the University of Nairobi to study law, graduating top of his class. That rare feat gave him a formidable edge in structuring deals, navigating regulation and understanding corporate power. Along the way, he briefly explored journalism, developing a rare ability to translate complex financial concepts into language ordinary investors could understand, a skill that would later democratize investing in Kenya.

From Civil Service to Private Enterprise

Between 1971 and 1980, Mbaru served in the civil service, rising to become Director of Industry in the Ministry of Commerce. But the pull of enterprise proved stronger. In the private sector, he founded several financial institutions, including Jimba Credit Corporation, Union Bank of Kenya and Kenya Savings & Mortgages.

Many of these banks were later shuttered during the late President Daniel Moi’s hostile and unpredictable anti-business environment. For many, this would have marked the end. For Mbaru, it was simply a pivot.

Dyer & Blair: Building a Financial Powerhouse

Sensing a gap in Kenya’s financial ecosystem, Mbaru turned to investment banking, a largely underdeveloped space at the time. In 1983, he led a group of investors to acquire Dyer & Blair Stockbrokers from KCB for KSh 400,000. What followed changed the firm completely.

By 2004, Dyer & Blair had evolved into a full-fledged investment bank under Mbaru’s leadership. The firm went on to advise on some of the most consequential deals in East African financial history, including:

Safaricom’s $840 million IPO in 2008, one of Africa’s largest and most successful public offerings
Private equity investments in Equity Bank, fueling one of Kenya’s most influential financial institutions
The first ever IPOs on the Rwanda and Uganda stock exchanges, expanding regional capital markets

To this day, Mbaru remains Chairman of Dyer & Blair, guiding one of Africa’s most respected investment banks.

Modernizing the Nairobi Securities Exchange

Mbaru’s influence extended well beyond his firm. As Chairman of the Nairobi Securities Exchange (1992-2001), he played a leading role in modernizing Kenya’s capital markets. Under his stewardship:

Trading systems were digitized
Settlement periods were slashed from 60 days to just 3
Transparency, efficiency and investor confidence dramatically improved

These reforms laid the foundation for the NSE as it exists today.

Wealth, Timing and Strategic Foresight

Mbaru’s personal investment portfolio reflects the same precision that defines his career. He holds significant stakes in companies such as Britam and TransCentury. His legendary timing is well documented. He sold Britam shares at Sh. 17 while many investors exited at Sh. 8, reportedly earning him close to Sh. 900 million and reinforcing his reputation as a master strategist.

While his exact net worth remains private, Jimnah Mbaru is widely regarded as one of Kenya’s wealthiest and most influential businessmen.

A Brief Foray into Politics

Mbaru briefly entered the political arena, contesting Nairobi’s gubernatorial seat in 2013 and 2017. Though unsuccessful, his campaigns reflected a desire to inject financial discipline, long-term planning and accountability into public governance, principles that had defined his business career.

A Living Legacy

Jimnah Mbaru’s story is about resilience, knowledge and the power of strategic thinking, as well as wealth:

From selling scones in Rwathia to advising billion-dollar IPOs
From humble roots to architecting East Africa’s financial infrastructure
From regulatory setbacks to pioneering investment banking in Kenya

Jimnah Mbaru is a billionaire whose life shows how intellect, persistence and bold investment choices can transform humble beginnings into legacies that shape nations.

Jimnah Mbaru embodies the very best of Kenyan entrepreneurship, proof that where you start does not limit how far you can go and that true wealth lies in impact as well as in money.