# Watrium

Watrium is a Single Family Office based in Oslo, Norway.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Oslo, Norway
- **Region:** Europe
- **Address:** Oslo, Norway
- **Founded:** 2002
- **Assets under management:** 470 (Altss estimate)
- **Website:** https://www.watrium.no
- **LinkedIn:** https://no.linkedin.com/company/watrium-as

## Regulatory record

- **Reports private funds:** No

## About

Watrium functions as the single-family office for the Wilhelmsen family, whose holdings trace to the Anders Wilhelmsen Group. Anders Christopher G. Wilhelmsen holds the role of CEO and third-generation owner. The firm allocates across private equity, venture capital, real estate, infrastructure, and private credit. Investment stages include buyout, growth, late stage, and pre-IPO. Watrium pursues direct co-investments and SPVs. Confirmed geographies cover Europe, North America, and Asia. Portfolio construction incorporates fund-of-funds commitments alongside select direct positions. The team includes Haakon Stenrød as Investment Director and Knut Olav Rød as Co-Chief Investment Officer. Additional real-asset holdings comprise multiple commercial properties in Oslo, including Oslo Atrium and Fornebu Gateway. No dated operational events from the last 24 months appear in available records. Watrium maintains a hybrid structure that combines internal direct deal execution with participation in external institutional syndicates. This setup separates family capital deployment from third-party fund vehicles.

## Sectors

- Digital Health
- Energy Transition & Renewables
- FinTech
- Industrial Tech
- PropTech
- Robotics & Automation
- Mobility & Transportation
- ClimateTech

## People

- Anders Christopher G. Wilhelmsen — CEO
- Anders Christian G. Wilhelmsen — Chief Investment Officer
- Haakon Stenrød — Investment Director
- Knut Olav Rød — Co-Chief Investment Officer

## Questions

### Who runs investment decisions at Watrium?

Anders Christian G. Wilhelmsen serves as Chief Investment Officer. Knut Olav Rød holds the Co-Chief Investment Officer title. Haakon Stenrød acts as Investment Director and board representative for portfolio companies.

### Does Watrium participate in fund commitments or only direct deals?

Watrium executes both fund-of-funds commitments and direct co-investments. It also deploys through SPVs and infrastructure vehicles.

### What investment stages does Watrium typically target?

The firm covers buyout, growth, late stage, and pre-IPO opportunities. It maintains exposure across these stages through a mix of direct and fund vehicles.

### What is Watrium's known posture on co-investments alongside external GPs?

Watrium pursues co-investment opportunities alongside leading institutional investors and family offices. It pairs these with internal direct investments.

## Related profiles

- [10th Mountain](https://altss.com/profile/10th-mountain)
- [Cruden Bay Investment Management](https://altss.com/profile/cruden-bay-investment-management)

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Last updated: 2026-06-03T20:00:00.000Z

Canonical page: https://altss.com/profile/watrium

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