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Single Family OfficePuts its own capital into companiesLAST VERIFIED Oct 2026 · 7 SOURCES

Oslo single family office of the Norwegian Wilhelmsen family, founded 2002 by Anders Christopher Wilhelmsen; invests in industrial companies, commercial property and external funds.

USEFUL FOR Fund managers raising capital · Business owners seeking a long-term partner · Co-investors

Family & background

FAMILY
Wilhelmsen
HEADQUARTERS
Oslo, Norway
OFFICES
London, UK
FOUNDED
2002
OUTSIDE CAPITAL
No — own capital only

Investment approach

STAGES
Growth
ROUTES
Companies (own capital) · Funds (as LP)
STRATEGIES
Direct investmentsPrivate equityReal estateFunds (as LP)
INBOUND
Accepts submissions

Overview

Watrium was founded in 2002 by Anders Christopher Wilhelmsen and says it operates as a single family office with permanent capital, owned by him and his family; its roots go back to the Anders Wilhelmsen Group shipping business founded in 1939. It exited shipping and cruise in 2015 and now holds global financial assets, direct industrial investments and Oslo commercial property such as SIXA and Fornebuporten. It also allocates to external managers including HitecVision, Bertol and Driv Kapital.

Investment thesis

Majority and minority stakes in market-leading, growth or cash-flow-positive businesses with aligned management, typically NOK 50m–500m equity, in health, technology, energy transition, finance and marine/aquaculture.

Holdings & investments (8)

People

  • Anders Christopher Wilhelmsen
    Founder and owner · source

Frequently asked questions

Watrium AS is a single family office based in Oslo, Norway, founded in 2002.

Watrium AS invests on behalf of the Wilhelmsen family.

Watrium AS invests its own capital into companies and in third-party funds as an LP. Its stated asset mix includes direct investments, private equity, real estate and funds (as lp).

Watrium AS invests at Growth stage in HealthTech, Software & SaaS, Climate & Energy, Fintech, Food & Agriculture and Real Estate & PropTech.

Watrium AS's stated ticket size is NOK 50M–NOK 500M.

Key people at Watrium AS include Anders Christopher Wilhelmsen (Founder and owner).

Watrium AS's holdings and investments include CMR Surgical, Flexiteek, TruFin, DF Capital, Ilionx, Lime Green Digital, 99x and Vertus Capital.

Watrium AS states that it accepts submissions through its official contact page.

No. Watrium AS invests its own capital and does not raise money from outside investors.