Billionaire Profile
Gustav Magnar Witzoe
Global Rank
#979

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Gustav Magnar Witzoe

CEO, Fish farming
NORWAY
Real-Time Net Worth
$4.289B
Estimated based on Fish farming stock value as of March 6, 2026
+0.45% (24h)
Age
32
Source
Fish farming
Industry
Food & Beverage
Citizenship
NORWAY

Biography

Gustav Magnar Witzoe, born in 1993, is a Norwegian billionaire celebrated for his significant stake in SalMar ASA, one of the world's largest salmon producers. His wealth source stems from fish farming, an industry in which SalMar has been a pioneer. His father, Gustav Witzoe, founded SalMar in 1991, and at age 18, Gustav Magnar was made the main shareholder. Beyond his primary wealth source, Gustav is also involved in tech startups and property investments. As of February 2, 2026, his estimated net worth is $3.8 billion.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Gustav Magnar Witzoe was born in Frøya, Norway, on February 8, 1993. His father, Gustav Witzoe, founded the salmon farming company SalMar in 1991, which would become one of the world's largest producers of farmed salmon. At the age of 18, Gustav Magnar Witzoe was made the main shareholder of SalMar, a move by his father, primarily for inheritance tax reasons.

Rise to Success

Witzøe's wealth is primarily tied to SalMar ASA, where he owns nearly half the company. SalMar has been at the forefront of industrializing fish farming in Norway, growing to become one of the country's largest industries. The company is fully integrated, with its own hatcheries, sea farms, harvesting plant and sales force. His involvement with the family business started early, including working as a milker at SalMar's fish farms. Besides his significant role in SalMar, Witzoe has also invested in technology startups and real estate.

Key Business Strategies

The success of SalMar, and consequently, Gustav Magnar Witzoe's wealth, is rooted in the company's strategic approach to fish farming. SalMar has focused on sustainable aquaculture in Norway, Iceland and Scotland, delivering healthy and tasty food to more than 50 countries. The company’s main activities include marine-phase farming, broodfish and smolt production, processing and sale of farmed salmon. SalMar has also expanded its operations to include a comprehensive VAP (Value Added Processing) activity.

Philanthropy

While specific philanthropic amounts are not readily available, the Witzøe family is known to be involved in charitable work, focusing on sustainability, supporting local communities, and providing children with education and better upbringings.

Career Milestones

1991

SalMar ASA Founded

Gustav Witzoe, Gustav Magnar's father, founded SalMar ASA, a fish farming company.

2011

Main Shareholder of SalMar

Gustav Magnar Witzoe became the main shareholder of SalMar at age 18.

2021

Launched philanthropic venture

Launched a venture providing funding to organizations that provide children with education and means for a better upbringing.

Philanthropy & Social Impact

Education

Uganda school facilities

Undisclosed

Building sanitary facilities in schools in Uganda to make it easier for girls to attend.

Social Issues

Child marriage prevention

Undisclosed

Supporting initiatives against child marriage.

Health

Child cancer awareness

Undisclosed

Collaborating with a team cycling from Norway to Paris to raise awareness for child cancer.

Business Philosophy & Leadership

Notable Quotes

""I'm starting to get used to it, but I think it's just sick every time. I don't really understand it. It's difficult to comprehend.”"

Leadership Principles

Strategic Investment

Focusing on investments in the salmon farming sector and technology startups.

Family Involvement

Continuing to be involved with the family business, SalMar ASA.

Controversies & Challenges

2012

Reckless Driving

Served a two-week prison sentence for reckless driving and overtaking at a high speed.