About us - Adessium Foundation

Enriched family-office · Found: 2026-03-11 08:10

We support nonprofit organizations working toward lasting positive change. We do so through grants, advisory support, and by connecting them to our network.

Source: https://www.adessium.org/en/about-us/

Funding Details

Funder

Adessium Foundation

Funding Goal

Support nonprofit organizations working toward an open, fair, and sustainable society through grants in three program areas: Nature and Living Environment, Just and Equitable Society, and An Informed Society.

Funding Amount

Not publicly disclosed. The foundation provides multi-year grants with a stable budget since 2009.

How to Apply

Adessium does not accept unsolicited proposals. Program managers identify and invite organizations that align with strategic focus areas. The 6-step process is: (1) Introduction meeting with potential site visit, (2) Concept note review and feedback, (3) Full proposal submission, (4) Due diligence on charitable status and governance, (5) Grant agreement documenting mutual expectations, (6) Ongoing monitoring and collaborative support.

Target Region

Netherlands and Europe

Contact

Phone: +31 182 646100, Email: info@adessium.org, Address: Postbus 76, 2810 AB Reeuwijk, Netherlands

Last Checked

2026-03-11 21:32

Application Checklist

Eligibility

• Organization must be a nonprofit/civil society organization with demonstrated charitable status
• Must demonstrate sound governance practices and financial management capabilities

Project Scope

• Organization must align with one of three programs: Nature and Living Environment, Just and Equitable Society, or An Informed Society
• Work must focus on Netherlands and/or Europe

Required Documents

• Submit concept note followed by full comprehensive proposal upon invitation
• Pass due diligence verification of charitable status and governance standards

Constraints

• Must be invited by Adessium program managers — unsolicited proposals are not accepted

Summary

Adessium Foundation is a Dutch family foundation established in 2005 by the Van Vliet family, based in Reeuwijk, Netherlands. It supports civil society organizations across the Netherlands and Europe through grants, advisory support, and network connections. The foundation works toward "an open society where everyone can participate fully" and aims to create a livable, compassionate world for future generations. The foundation operates three main programs: Nature and Living Environment (focused on healthy ecosystems, clean air, water, and soil), Just and Equitable Society, and An Informed Society. Under the Nature program, it funds organizations like MedReAct (Mediterranean marine protection), Med Sea Alliance, Marilles Foundation, CHEM Trust (chemical pollution), and Natuur & Milieu (climate and nature restoration). The foundation also maintains flexible funding for urgent needs outside its predefined programs. Importantly, Adessium does not accept unsolicited proposals. Program managers proactively identify and invite organizations that align with the foundation's strategic focus areas. The application process involves six steps: introduction, concept note review, full application, due diligence, grant agreement, and ongoing monitoring. The foundation emphasizes long-term, multi-year partnerships and values transparency, sound governance, and demonstrated charitable status. It holds Dutch ANBI (Public Benefit Organization) status and has maintained a stable budget since 2009.

Historical Context

Founded in 2005 by the Van Vliet family. Has maintained a stable grantmaking budget since 2009. Holds Dutch ANBI status. Member of Dutch Association of Foundations (FIN) and Philanthropy Europe Association (Philea).

Sources

• https://www.adessium.org/en/about-us/
• https://www.adessium.org/en/how-to-apply/
• https://www.adessium.org/en/nature-and-living-environment/
• https://www.adessium.org/en/our-approach/
• https://www.adessium.org/en/our-grants/

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