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The Irish Made Good: The Top 10 Richest Persons in Ireland

Top 10 Richest Persons in Ireland


In this article, we will explore the top 10 richest persons in Ireland, their achievements, and the sources of their wealth. Ireland is a small country with a population of just over 5 million people. Ireland, known for its breathtaking landscapes and rich cultural heritage, is also home to a remarkable number of highly successful individuals who have amassed significant wealth. From entrepreneurs to business magnates, the Emerald Isle boasts an impressive lineup of wealthy individuals who have made their mark in various industries.

The top 10 richest individuals in Ireland represent a diverse range of industries and entrepreneurial achievements. These individuals have amassed immense wealth through their business ventures, investments, and entrepreneurial endeavours. Their success has not only contributed to their personal fortunes but also played a significant role in shaping Ireland’s economy. From technology and finance to construction and telecommunications, these billionaires have left a lasting impact on their respective industries. Moreover, many of them have demonstrated a commitment to philanthropy, using their wealth and influence to make positive contributions to society.

The top 10 richest persons in Ireland stand as inspiring examples of entrepreneurial excellence and serve as key figures in Ireland’s business landscape. The following is a list of the top 10 richest persons in Ireland, as of July 2023:

Shapoor Mistry

* Net worth: $11.5 billion

* Source of wealth: Tata Group

* Nationality: India

Shapoor Mistry is an Irish-Indian billionaire businessman.Shapoor Mistry is the chairman of the Shapoorji Pallonji Group, a diversified conglomerate with interests in construction, engineering, and real estate. He is the son-in-law of the late Pallonji Mistry, who was the patriarch of the Tata Group, one of the largest conglomerates in India. Shapoor Mistry inherited a significant stake in the Tata Group after his father-in-law’s death in 2022.

As chairman of the Tata Group, Mistry oversaw a period of significant growth and diversification for the company. He also led the acquisition of several major businesses, including British Steel and Jaguar Land Rover.However, Mistry’s tenure as chairman was also marked by controversy. In 2016, he was ousted from the position by the Tata family, who accused him of mismanagement.He is also the chairman of the Indian Institute of Technology Bombay and a member of the board of directors of several other companies.

Mistry is a controversial figure, but there is no doubt that he is a successful businessman. He has made a significant contribution to the Indian economy and is one of the richest people in Ireland.

John Grayken

* Net worth: $6.3 billion

* Source of wealth: Lone Star Funds

* Nationality: United States

John Grayken is an American-born Irish billionaire financier and private equity investor. Born in 1956, he is the founder and chairman of Lone Star Funds, a global investment firm specialising in distressed assets. Grayken is known for his shrewd business acumen and ability to identify lucrative investment opportunities. He has amassed a significant fortune through his astute investments in distressed real estate, banking, and financial services. Grayken is a private and low-profile individual, rarely appearing in the media or public events. Despite his low-key persona, his financial success and expertise have earned him a reputation as one of the most successful and influential investors in the world.

John Collison

* Net worth: $5.5 billion

* Source of wealth: Stripe

* Nationality: Ireland

John Collison is an Irish billionaire entrepreneur and the co-founder and CEO of Stripe, a payments processing company,that has become one of the most successful tech startups in the world. Collison was born in Limerick, Ireland, in 1990. He attended University College Dublin, where he studied computer science and mathematics.

After graduating from university, Collison co-founded Stripe with his brother Patrick in 2010. Stripe provides a suite of APIs that allow businesses to accept online payments. The company has quickly become one of the leading payments processors in the world, processing billions of dollars in payments each year.

Top 10 Richest Persons in Ireland
Top 10 Richest Persons in Ireland

Collision is one of the youngest self-made billionaires in the world. He is also one of the most influential people in the technology industry. He has been named one of the “World’s Most Powerful People” by Forbes magazine and one of the “100 Most Creative People in Business” by Fast Company magazine.

Patrick Collison

* Net worth: $5.5 billion

* Source of wealth: Stripe

* Nationality: Ireland

Patrick Collison, born in 1988, is an Irish-born entrepreneur and the co-founder and CEO of Stripe, a global online payments company. Collison has gained recognition for his innovative contributions to the tech industry. He co-founded Stripe in 2010 with his brother John Collison, and the company has since grown into a multibillion-dollar enterprise, revolutionising online payments and e-commerce. With his sharp intellect and visionary leadership, Collison has successfully positioned Stripe as a key player in the fintech landscape. He has been named to prestigious lists such as Forbes’ Billionaires and Time’s 100 Most Influential People, cementing his status as a prominent figure in the business world.

Denis O’Brien

* Net worth: $2.7 billion

* Source of wealth: Independent News & Media

* Nationality: Ireland

Denis O’Brien, born in 1958, is an Irish businessman and philanthropist who has made significant contributions in the fields of telecommunications, media, and entrepreneurship. As the founder and chairman of Digicel, a prominent global telecommunications company, O’Brien has played a pivotal role in expanding mobile communication networks across the Caribbean, Central America, and the Pacific regions. His vision and determination have positioned Digicel as a leading provider of mobile services in these markets.

Aside from his business ventures, O’Brien is known for his philanthropic endeavors. He has actively supported educational and social initiatives in Ireland and other developing countries. Through his foundation, he has invested in education, healthcare, and entrepreneurship programs, making a positive impact on the lives of many.

O’Brien’s business acumen and commitment to social responsibility have garnered recognition. He has received numerous awards for his contributions to the telecommunications industry and his philanthropic efforts. O’Brien continues to be a prominent figure in Ireland’s business landscape, leveraging his success and resources to drive positive change and empower communities around the world.

John Dorrance III

* Net worth: $2.6 billion

* Source of wealth: Campbell Soup Company

* Nationality: United States

John Dorrance III, born in 1943, is an American billionaire heir and businessman. He is famously known as the descendant of John Dorrance, the inventor of condensed soup and the former president of Campbell Soup Company. As the largest shareholder of the company, Dorrance III has had a significant impact on its direction and success.

Despite his immense wealth, Dorrance III has maintained a low public profile, avoiding the limelight. He is known for his reclusive lifestyle and preference for privacy. However, his influence within Campbell Soup Company is undeniable. His shares give him considerable control over the company’s decisions and strategic direction.

Top 10 Richest Persons in Ireland
Top 10 Richest Persons in Ireland

Dorrance III’s wealth is estimated to be in the billions, and his business acumen has helped him amass a significant fortune. While he keeps a low profile, his actions as a major shareholder and his contributions to the company’s success have solidified his position as an influential figure in the world of business and heir to a historic legacy in the food industry.

John Armitage

* Net worth: $2.3 billion

* Source of wealth: Egerton Capital 

* Nationality: United Kingdom

John Armitage, also known as Dr. John R. Armitage, is a British hedge fund manager and philanthropist. With a background in medicine, Armitage brings a unique perspective to his investment strategies. He is the founder and Chief Investment Officer of Egerton Capital, a highly successful hedge fund based in London.

Armitage has gained recognition for his astute investment decisions and ability to generate impressive returns for his clients. His approach combines deep research, quantitative analysis, and a keen understanding of market dynamics. He is known for his disciplined investment style and long-term perspective.

Beyond his accomplishments in the financial world, Armitage is actively involved in philanthropy. He is the founder of the Egerton Foundation, which supports various charitable causes, particularly those related to education and healthcare.

Armitage’s success in the investment industry, coupled with his commitment to giving back, has solidified his reputation as a respected figure in both the business and philanthropic realms. His contributions and expertise continue to shape the financial landscape and make a positive impact on society.

Dermot Desmond

* Net worth: $2.2 billion

* Source of wealth: Private investments

* Nationality: Ireland

Dermot Desmond, born in 1950, is an Irish billionaire entrepreneur, investor, and philanthropist. He is widely regarded as one of Ireland’s most successful businessmen. Desmond has made significant contributions to various industries, including finance, telecommunications, and sports.

As the founder of International Investment & Underwriting (IIU) and Celtic International, Desmond has built a formidable empire with interests spanning banking, investment, and telecommunications. He has a reputation for his sharp business acumen and ability to identify lucrative opportunities.

Desmond’s involvement in the sports world is notable as well. He has been a major shareholder in Celtic F.C., a prominent football club in Scotland, and his financial support has played a crucial role in its success.

Beyond his business ventures, Desmond is actively involved in philanthropy. He has donated substantial amounts to various causes, including education and healthcare, aiming to make a positive impact on society.

Dermot Desmond’s entrepreneurial achievements, combined with his philanthropic endeavours, have earned him a prominent place in both the business and philanthropic spheres. His contributions continue to shape industries and improve the lives of many.

Eugene Murtagh

*Net worth:$1.9 billion

* Source of wealth: Business, Investment


Eugene Murtagh, born in 1948, is an Irish businessman and the founder and chairman of Kingspan Group, a global leader in high-performance insulation and building envelope solutions. Murtagh’s entrepreneurial journey began in 1965 when he took over his father’s small construction business. Under his leadership, Kingspan experienced remarkable growth and transformed into a multinational corporation.

Murtagh is renowned for his innovation and vision in the construction industry. He played a pivotal role in revolutionizing building practices with the introduction of insulated panel systems, which offered superior thermal performance and energy efficiency. This breakthrough technology propelled Kingspan to become a market leader.

In addition to his business achievements, Murtagh is recognized for his commitment to sustainability and environmental responsibility. He has championed sustainable building practices, driving Kingspan’s initiatives to reduce carbon emissions and promote circular economy principles.

Eugene Murtagh’s contributions to the construction industry and his commitment to sustainability have earned him numerous accolades and recognition. His leadership and dedication have not only positioned Kingspan as a global leader but have also made a significant impact on the way buildings are designed and constructed, shaping a more sustainable future.

Tony O’Reilly Jr.

*Net Worth:$1.8 billion

*Source Of Wealth:CEO of Providence Resources, dCarbonX

Tony O’Reilly Jr., born in 1958, is an Irish businessman and entrepreneur. He is the son of the renowned Irish businessman Tony O’Reilly. O’Reilly Jr. has made a name for himself in the business world through his successful ventures and leadership roles.

O’Reilly Jr. has held various executive positions, including CEO and Chairman, in companies such as Providence Resources, a leading oil and gas exploration company, and Topaz Energy Group, Ireland’s largest fuels and convenience retailer. His strategic vision and management skills have contributed to the growth and success of these companies.

Top 10 Richest Persons in Ireland
Top 10 Richest Persons in Ireland

In addition to his corporate endeavors, O’Reilly Jr. is known for his involvement in philanthropy and social impact initiatives. He has actively supported charitable causes, particularly in the areas of education and healthcare, aiming to make a positive difference in society.

Tony O’Reilly Jr.’s business acumen, combined with his commitment to social responsibility, has solidified his reputation as a respected figure in the business community. His contributions to various industries and his philanthropic efforts continue to leave a lasting impact.


Ireland’s top 10 richest individuals exemplify the nation’s spirit of entrepreneurship and resilience.Their success stories inspire aspiring entrepreneurs and contribute to the growth of Ireland’s economy. As Ireland continues to foster a favourable business environment, we may witness more individuals joining the ranks of the country’s wealthiest in the years to come.