Santtu Seppälä is a business executive and investment professional who is also known as the husband of Suits actress Sarah Rafferty. He studied at Yale University and the Wharton School and spent about 20 years in investment management. Santtu and Sarah met at Yale, married in 2001, and have two daughters, Oona and Iris.
Santtu Seppälä’s Profile Summary
| Detail | Information |
|---|---|
| Name | Santtu Seppälä |
| Known for | Sarah Rafferty’s husband |
| Citizenship | Finnish and American |
| Raised in | Finland and several other countries |
| Education | Yale University, Wharton School |
| Yale graduation | 1993 |
| Sport | Tennis |
| Profession | Business and investment executive |
| Wife | Sarah Rafferty |
| Married | June 23, 2001 |
| Children | Oona Gray and Iris Friday |
| Residence | Associated with Los Angeles |
| Net worth | Not reliably known |
Santtu Seppälä’s Early Life
Santtu Seppälä has Finnish roots and spent part of his childhood in Finland.
He had an international upbringing and lived in Finland, Sweden, Denmark, France, Germany, and the United States before building his career in America.
Sources disagree about his birthplace. Some say he was born and raised in Finland, while another reports that he was born in Illinois to Finnish parents.
His exact birthplace should therefore be treated as unconfirmed.
Santtu Seppälä’s Age
Santtu’s exact age is also unclear.
One secondary source gives his birthday as December 6, 1974. However, Sarah Rafferty reportedly celebrated his 50th birthday in 2020, which would place his birth around 1970.
Because these details conflict, his birth year and current age cannot be reliably confirmed from the available information.
One source also reports his full birth name as Aleksanteri Olli-Pekka Seppälä, but this has not been confirmed by the stronger available sources.
His Parents and Family
Santtu’s parents are reported to be Finnish.
One source identifies his father as Antti V. Seppälä, who reportedly worked as an independent consultant in the pharmaceutical industry in Lake Forest, Illinois.
Little information is publicly available about Santtu’s mother or siblings.
Education at Yale University
Santtu attended Yale University and earned a bachelor’s degree in 1993.
One source reports that he studied Ethics, Politics and Economics.
He was also a member of the Yale Varsity Tennis Team and is described as an Ivy Champion.
Yale was also important to his personal life because it was where he met his future wife, Sarah Rafferty.
MBA From the Wharton School
Santtu continued his education at The Wharton School of the University of Pennsylvania.
He reportedly studied there from 1996 to 1998 and earned an MBA in 1998.
His education prepared him for a long career in finance, investment management, and business strategy.
Santtu Seppälä’s Career
Santtu has spent much of his professional life in finance and investment management.
He began his career at Salomon Brothers, where he worked in investment banking. One source says he joined the company as a financial analyst in 1993.
He was also reportedly connected to the Finnish Defence Force for about a year before continuing his finance career.
Santtu later worked as an analyst at Lazard Asset Management.
He then became a portfolio manager at Cantillon Capital Management in New York.
Kiitos Capital Management
Santtu later founded Kiitos Capital Management.
He served as the company’s Chief Investment Officer and was also described as a managing member.
This position was part of his roughly two decades of work in investment management.
Angeleno Group
In 2021, Santtu joined Angeleno Group in Los Angeles.
He became Vice President of Strategy and Business Development.
Another source has also linked him to Staxxon as Chief Strategy Officer and a member of its management committee. However, the available information does not clearly establish whether that remains a current position.
How Santtu Met Sarah Rafferty

Santtu and Sarah Rafferty met while studying at Yale University.
They were together by 1994. Sarah later shared a photograph from that year and described it as their first photo together as a couple.
They dated for several years before getting married.
Marriage to Sarah Rafferty
Santtu Seppälä and Sarah Rafferty married on June 23, 2001.
Their wedding took place at the Roman Catholic Church of St. Mary in Greenwich, Connecticut. The ceremony was reportedly officiated by Rev. Alfred Riendeau.
Sarah celebrated their 20th wedding anniversary in 2021 by sharing a photograph from their wedding.
The couple marked 25 years of marriage in June 2026.
Who Is Sarah Rafferty?
Sarah Rafferty is an American actress best known for playing Donna Paulsen in the television series Suits.
The legal drama also starred Gabriel Macht as Harvey Specter and Meghan Markle as Rachel Zane.
Sarah studied acting at Yale, where she met Santtu.
She has also appeared in other television projects, including Grey’s Anatomy.
Sarah has publicly credited Santtu with helping her manage her acting career while raising their family. She has described them as a team who arrange their work around being present for their children.
Santtu Seppälä’s Children
Santtu and Sarah have two daughters.
Their older daughter, Oona Gray Seppälä, was born in 2007. One source gives her birthday as October 22, but the exact date is not as strongly supported as the birth year.
Their younger daughter, Iris Friday Seppälä, was born in 2012, reportedly in January.
Sarah occasionally shares family moments involving the girls on Instagram.
Family Life in Los Angeles and Toronto
The family has been based mainly in Los Angeles.
When Sarah was filming Suits in Toronto, the family spent time in Canada together rather than living apart for long periods.
At one point, their older daughter attended schools in both locations.
Sarah said she and Santtu worked together to manage their careers and remain present for their daughters.
The family also has a Finnish tradition at home. Sarah has said an ideal Sunday includes Finnish pancakes made by Santtu.
Santtu and Sarah Enjoy Traveling
Travel has been an important part of Santtu and Sarah’s relationship.
Sarah has shared photographs from trips they took together, including Istanbul in 2004 and Bhutan in 2005.
She has described traveling with Santtu as one of her favorite activities.
The couple also spend time together hiking, doing hot yoga, and going out for dinner.
Public Appearances
Santtu Seppälä occasionally accompanies Sarah to public events.
In October 2017, they attended a Moncler boutique opening dinner in Toronto.
One of their most notable appearances came on May 19, 2018, when they attended the wedding of Prince Harry and Meghan Markle at St George’s Chapel in Windsor, England.
They have also been photographed together at entertainment industry events in Los Angeles.
Santtu Seppälä’s Social Media
Santtu Seppälä does not appear to maintain a widely known verified public social media account.
Most personal photographs and updates about him have come from Sarah Rafferty’s Instagram.
Sarah has used the platform to celebrate his birthdays, their wedding anniversaries, and their travels together.
Santtu Seppälä’s Net Worth
Santtu Seppälä’s exact net worth is not reliably known.
One secondary source gives an estimate of $10 million, but there is no verified financial information supporting that amount.
His long career in investment management does not provide enough information to calculate his personal wealth accurately.
Facts About Santtu Seppälä
- Santtu Seppälä is Sarah Rafferty’s husband.
- He has Finnish roots and dual Finnish-American citizenship.
- He lived in several countries while growing up.
- He graduated from Yale University in 1993.
- He played varsity tennis at Yale and was an Ivy Champion.
- He earned an MBA from the Wharton School in 1998.
- He began his finance career at Salomon Brothers.
- He worked at Cantillon Capital Management.
- He founded Kiitos Capital Management and served as Chief Investment Officer.
- He joined Angeleno Group in 2021.
- He met Sarah Rafferty at Yale.
- They were a couple by 1994.
- They married on June 23, 2001.
- They have two daughters, Oona and Iris.
- Their family has lived mainly in Los Angeles and also spent time in Toronto.
- Santtu and Sarah enjoy traveling together.
- They attended Prince Harry and Meghan Markle’s wedding in 2018.
- His exact age and birthplace are unclear because published sources give conflicting information.
- His personal net worth has not been reliably confirmed.
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