Steward-ownership: lock control with a veto ("golden") share held by an independent purpose entity

Location

Berlin, Germany52.5200, 13.4050

Description

In October 2018 Ecosia GmbH (Berlin, founded 2009) adopted steward-ownership via the veto-share ('golden share') model, with the Purpose Foundation as the independent holder of approximately 1% of shares. The founders permanently surrendered two rights: (1) the company can never be sold for the owners' personal profit, and shares cannot be transferred at a profit to outsiders; and (2) no profits can be extracted by owners. Before choosing this route, the team evaluated converting to a German non-profit and setting up a foundation that owns the operating business — both were rejected due to cost, overhead, or structural rigidity. The veto-share route provided foundation-grade irreversibility while preserving full operational control for founders and avoiding foundation bureaucracy. Ecosia channels profits into climate action (historically ≥80% to tree-planting, remainder to renewable energy) and publishes monthly financial reports. The lock has remained in force since adoption with no reversal or extraction in 7+ years.

Metrics

4

Veto share held by independent Purpose Foundation0% (founder-owned)~1% veto share; founders' right to sell or extract profit permanently removed

Share of profits directed to tree-plantingat least 80% (≈100% of profit to climate action overall)% of profit

Trees funded since 20090200M+trees

Years lock has held without reversal or extraction07+ (since Oct 2018)years

Funding

Self-funded from search advertising revenue (ad-click share via Bing/Microsoft and Google); no external equity investors

Lessons learned

The veto-share model delivers foundation-grade irreversibility without converting to a charity or incurring the overhead of a foundation that owns the operating company — a concrete alternative to both structures.
The lock survived a real commercial stress test (a reported sharp rise in Bing syndication fees ~2023): it forced a strategic response but ruled out resolving the crisis by selling the company or extracting profit, demonstrating the mechanism holds under financial pressure.
Capital-intensive projects that require external equity cannot be housed inside the steward-owned entity: Ecosia addressed this by forming a separate joint venture (with Qwant for an independent European search index) structured outside the locked entity so it could raise outside investment.
The lock secures where profits go, not how large they are — planting funding fluctuates directly with ad-click revenue, so mission output varies even when the governance structure is intact.
Governance lock and impact verification are distinct questions: the ownership lock is legally demonstrable, while downstream impact claims (trees planted, CO₂ removed) remain largely self-reported and require separate verification mechanisms.

Sources

2

Documented Jun 29, 2026

Arnaud Gissinger