Santtu Seppälä runs strategy for a company that wants to change how the world moves empty shipping containers. Most people who look him up have no idea, because they arrived for something else. He is married to Sarah Rafferty, the actress who played Donna Paulsen on Suits, and for most write-ups that fact is the beginning and the end of who he is.
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Who is Santtu Seppälä?
Born Aleksanteri Olli-Pekka Seppälä, he is a Finnish-American finance executive with a degree from Yale University and an MBA from the Wharton School at the University of Pennsylvania. He worked in investment and asset management for about two decades before moving into shipping technology.
He married Rafferty in 2001, and the couple has two daughters, Oona Gray and Iris Friday. He stays out of public view and keeps no real social media presence.
What he does now: Staxxon’s folding container
Seppälä is Chief Strategy Officer at Staxxon, a New Jersey company developing a shipping container that folds. He also invests in the business and sits on its board.
Several older profiles still name his employer as Angeleno Group, a Los Angeles clean-energy investment firm where he was Vice President of Strategy and Business Development. That role was real, but it sits in his past. The firm’s current team page does not list him, and the reporting that quotes him by name comes from freight and logistics outlets rather than entertainment pages.
How the folding container works
Staxxon was founded in 2011 by George Kochanowski, a former chemical engineer who kept noticing empty containers stacked up at East Coast ports, and Richard Danderline, a finance veteran who runs the books as CFO. Seppälä joined later to handle strategy.
The problem they are after is dull and expensive. A steel container takes up the same room whether it is full or empty, and a great many of them cross the ocean carrying nothing. Staxxon’s design folds upright like an accordion, so up to five empty units bundle into the footprint of one. Bundled or loaded, it still stacks and moves like an ordinary box, and it stays compatible with standard ISO container fleets.
Seppälä has handled the public case for the economics. Speaking to trade publications including FreightWaves and SupplyChainBrain during the port backlogs of 2021 and 2022, he laid out the numbers:
- The industry spends more than $20 billion a year repositioning empty containers around the world.
- Bundling five empties into one footprint could, by Staxxon’s own math, avoid roughly 63 million metric tons of carbon emissions a year through fewer truck and crane movements.
- A separate company estimate he cited put avoided ocean-vessel emissions near 200 million metric tons a year, which he compared to taking about 43 million cars off the road.
He has also been candid about the catches. When freight workers in New Jersey looked over an early prototype, they pointed out that the hollow steel beams in the frame would make a handy hiding spot for smuggled drugs, so the company switched to solid, sealed beams. The containers will cost more than the standard kind too, by his estimate around 1.5 to 1.6 times as much at full production, with the savings landing on the operations side rather than the sticker price.
A product that keeps almost launching
The reason this is worth reading in 2026, rather than a few years ago, comes down to timing.
Staxxon has been close to market for a long time. It opened refundable pre-order deposits in late 2021 and pointed to commercial delivery the next year. That date slid to the end of 2023. The company has since said it would begin trials with ocean, rail, and trucking partners in 2025 and launch commercially by the end of 2026.
So Seppälä has spent years as the public voice of a product that always seems to be about a year away. Shipping moves slowly and replaces its core equipment rarely, and getting regulators, ports, truckers, and unions to agree at the same time is hard. The deadline he is working toward now is the closest thing to a firm one the company has set.
From asset management to shipping
The investment background that older write-ups mention without detail is real, and it explains why a hardware startup brought him in to steer strategy.
His career moved from conventional money management toward sustainability-minded investing:
- Analyst at Lazard Asset Management
- Portfolio manager at Cantillon Capital Management
- Chief investment officer and managing member at Kiitos Capital Management
- Vice President of Strategy and Business Development at Angeleno Group
- Chief Strategy Officer at Staxxon
Santtu Seppälä and Sarah Rafferty
The marriage is what brings most readers to his name, so the facts deserve care.
The two met as students at Yale, where Rafferty was earning her MFA in acting. They married on June 23, 2001, at the Roman Catholic Church of St. Mary in Greenwich, Connecticut. Their elder daughter, Oona Gray, was born in 2007, and Iris Friday followed in 2012. The family has stayed firmly private.
Seppälä shows up in public mostly alongside his wife. He joined her at the 2018 wedding of Prince Harry and Meghan Markle at Windsor Castle, and the two have been photographed together at industry events and, more recently, courtside at a Los Angeles Clippers game.
What’s confirmed, and what isn’t
A good deal of what circulates online about him was invented to fill pages. These claims carry no credible source, so it is worth holding them loosely:
- His exact birth date, which different sites give as two different days
- A net worth, usually printed as $8 to $10 million with nothing behind it
- A first job at Salomon Brothers and a year in the Finnish Defence Force
- A Yale varsity tennis career and an “Ivy Champion” title
What holds up to checking is narrower: the marriage and children, the Yale and Wharton education, the finance career, and the role at Staxxon.
A man often filed away as an actress’s husband is, in his own right, the strategist behind a company trying to talk an old industry into folding up its empty boxes. Whether that bet pays off should become clear before the year is out.
