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Ioannis Markopoulos

1951 – 2004

Greek businessman

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About Ioannis Markopoulos

Lived 1951 – 2004 (aged 52–53). Ioannis Markopoulos was a Greek businessperson.

John Markopoulos (1951–2004) was a Greek businessman. He was majority shareholder of Proton Bank.

Life Markopoulos studied at the University of Thessalonica, and graduate studies (MBA) at the INSEAD University in Fontainebleau, France. He worked as a financial analyst in Steyr-Daimler-Puch in Vienna and as a manager in Chase Manhattan Bank in London.

In 1990, he founded Sigma Securities S.A. where he held the positions of chairman and managing director until the year 2000, when the company was acquired by Piraeus Bank. Sigma Securities was the first private societe anonyme securities house in Greece, and became the top ranked securities house in the domestic market.

In 2001, Markopoulos co-founded the Proton Bank group, a specialised financial services group engaging in the provision of investment and asset management services.

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Important facts

Born
1951
Birth century
Died
2004
Occupation
Nationality
Also known as
John Markopoulos

People in Ioannis Markopoulos's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Ioannis Markopoulos's

Frequently asked questions

Who was Ioannis Markopoulos?

Greek businessman

When was Ioannis Markopoulos born?

Ioannis Markopoulos was born in 1951.

When did Ioannis Markopoulos die?

Ioannis Markopoulos died in 2004.

What was Ioannis Markopoulos's occupation?

Ioannis Markopoulos was a businessperson.

What nationality was Ioannis Markopoulos?

Ioannis Markopoulos was Greek.

Sources & further reading

· Wikipedia: Ioannis Markopoulos

· Wikidata: Q6246779

· DBpedia: John Markopoulos

Cite this page

APA: Biography.guide. (2026). Ioannis Markopoulos. https://biography.guide/ioannis-markopoulos/

MLA: "Ioannis Markopoulos." Biography.guide, https://biography.guide/ioannis-markopoulos/.

Chicago: "Ioannis Markopoulos." Biography.guide. https://biography.guide/ioannis-markopoulos/.

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