5 Surprising Facts About Santtu Seppälä: The Elite Wall Street Executive Behind Hollywood's Sarah Rafferty

Santtu Seppälä is a name that resonates in both elite financial circles and the world of Hollywood, primarily due to his high-profile marriage to Suits actress Sarah Rafferty. As of December 2025, Seppälä continues to hold a significant position as a Vice President of Strategy and Business Development at the Angeleno Group, a private equity firm specializing in the energy and natural resources sectors.

His story is one of global mobility and high-level finance, a journey that began in Finland and traversed six different countries before culminating in a successful career on Wall Street. This article will delve into the professional and personal life of the Finnish-American executive, highlighting his impressive educational background, his two-decade-long career in investment management, and the private life he shares with his celebrity wife.

Santtu Seppälä: Biography and Professional Profile

Santtu Seppälä’s profile is defined by a blend of international experience, academic excellence, and a deep history in the financial sector. His career progression from an investment banker to a Chief Strategy Officer and now a Vice President at a specialized private equity firm showcases a remarkable trajectory.

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• Full Name: Santtu Seppälä
• Nationality: Finnish-American (Born in Finland or the US to Finnish Parents)
• Profession: Financial Analyst, Businessman, Executive
• Current Role (as of 2025): Vice President, Strategy & Business Development at Angeleno Group (Joined 2021)
• Father's Name: Antti V. Seppälä (Worked as an adviser/pharmaceutical consultant)
• Spouse: Sarah Rafferty (Actress, known for Suits)
• Marriage Date: June 23, 2001
• Children: Two daughters (Oona Gray and Iris Friday)
• Education:
  • Yale University (Undergraduate Degree)
  • Wharton School of the University of Pennsylvania (MBA)
• Notable Previous Roles:
  • Portfolio Manager at Cantillon Capital Management
  • Chief Strategy Officer (Post-2015 role)
  • Investment Banker at Salomon Brothers
• Global Upbringing: Lived in 6 countries: Finland, Sweden, Denmark, France, America, and Germany.

The Global Journey: From Finland to Wall Street's Elite

Santtu Seppälä's early life laid the foundation for his sophisticated understanding of global markets and diverse business environments. Born in Finland, his childhood was a whirlwind of international moves, a unique experience that saw him grow up across six different countries. This exposure to various cultures—including Sweden, Denmark, France, America, and Germany—is a crucial element of his biography, providing him with a genuinely global perspective that is invaluable in high-stakes finance.

This multinational background is often cited as a key differentiator in his professional success. It allowed him to develop a flexible mindset and an ability to navigate complex, cross-border business challenges, traits that are highly sought after in investment management and venture capital.

His academic pursuits further cemented his path to success. Seppälä earned his undergraduate degree from the prestigious Yale University, one of the world's leading academic institutions. He later sharpened his financial acumen by obtaining an MBA from the Wharton School of the University of Pennsylvania, widely regarded as one of the top business schools globally.

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The combination of a rigorous Ivy League education and a truly international upbringing positioned him perfectly for a career in the upper echelons of finance. His professional journey began as an investment banker at Salomon Brothers, a foundational role that provided him with the necessary technical skills and market insight to thrive in the competitive world of Wall Street.

A Career Defined by Strategic Investment and Growth

Seppälä's professional narrative is a testament to his expertise in strategic investment and portfolio management. After his early years in investment banking, he transitioned into asset management, where he spent over two decades building a formidable career.

One of his most notable roles was as a Portfolio Manager at Cantillon Capital Management, a New York-based firm known for its focused investment strategies. In this role, he was responsible for overseeing significant capital and making critical investment decisions, further solidifying his reputation as an expert financial analyst and stock market manager.

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The evolution of his career saw him take on a Chief Strategy Officer (CSO) position around 2015, a role that emphasizes long-term planning, corporate development, and identifying new avenues for growth. This shift from portfolio management to a broader strategic leadership role highlights his versatility and ability to contribute at the executive level.

The most recent and current chapter of his career is his role as Vice President of Strategy and Business Development at the Angeleno Group, a position he took on in 2021. The Angeleno Group is a prominent private equity and venture capital firm that focuses on high-growth companies in the energy transition, natural resources, and environmental sectors. This move indicates a commitment to impact investing and a focus on sustainable, future-forward industries, reflecting the growing trend in global finance toward ESG (Environmental, Social, and Governance) factors. His work here involves shaping the firm's strategic direction and identifying new business opportunities in a rapidly evolving market.

The Private Life: Marriage to Actress Sarah Rafferty

While his professional achievements are substantial, Santtu Seppälä is perhaps most widely recognized through his marriage to renowned actress Sarah Rafferty. Rafferty is best known for her long-running role as Donna Paulsen on the hit legal drama Suits.

The couple’s relationship is a long-standing one, having tied the knot in June 2001. Their wedding took place at the stunning Roman Catholic Church of St. Mary in Greenwich, Connecticut. Their marriage is a successful blend of two worlds: the high-pressure environment of Wall Street finance and the demanding, public-facing life of Hollywood entertainment. They share two daughters, Oona Gray and Iris Friday, and have managed to maintain a relatively private family life despite Rafferty's celebrity status.

In interviews, Rafferty has occasionally touched on the dynamics of their relationship, often emphasizing the importance of compromise, flexibility, and a shared commitment to finding solutions—qualities that Seppälä's diverse and demanding career likely reinforced. Their enduring partnership, spanning over two decades, stands as a quiet counterpoint to the more volatile relationships often seen in the entertainment industry, showcasing a strong foundation built on mutual respect and shared values.

The professional entities and LSI keywords woven into Santtu Seppälä's life story—including Angeleno Group, Venture Capital, Investment Banking, Chief Investment Officer, Finnish Businessman, Yale Alumnus, and Sarah Rafferty's Husband—paint the picture of a highly accomplished executive whose influence extends far beyond the financial pages, making him a fascinating figure in both business and celebrity culture.