Founders who sell to bigger owners keep discovering the same thing. The product they built gets milked, the culture they cultivated gets flattened, and the mission that justified the whole enterprise quietly becomes a line item to be optimised away. The pattern is common enough to have become a running complaint about how good companies decay after a change of hands. It raises a structural question most corporate forms never confront: what actually prevents an owner from selling the mission for parts?
Two rules that redefine ownership
Thomsen and colleagues (2025), in a curated research conversation published in Business & Society, define steward-ownership by two principles that set it apart from conventional ownership. The first decouples control rights from economic rights, so the people who steer the company are not necessarily the people entitled to its profits. The second is an asset lock, a legal barrier that stops shareholders from privatising the company's resources, from selling the enterprise for personal gain or stripping out its accumulated value. Put together, they redraw the meaning of ownership. You can hold a stake in the returns without holding the power to liquidate the whole, and you can hold the power to steer without being able to pocket the proceeds.
The canonical case
The reference example is Bosch. Its structure splits economic ownership from voting control: a charitable foundation holds the overwhelming majority of the economic stake, while strategic control sits with a separate trustee body committed to the company's continuity (Thomsen and colleagues, 2025). Profits flow largely toward philanthropy, and the votes that decide the firm's direction rest with stewards rather than with anyone positioned to sell up. The engineering matters more than the charity. By separating who profits from who decides, and by bolting the door against extraction, the design makes the company effectively unsellable in the ordinary sense. No investor can arrive, buy control, and cash it out.
Notice how unusual that is against the ordinary corporate default, where one bundle of shares carries both the profit and the power, so that whoever accumulates enough of them can both direct the firm and liquidate it. Steward-ownership treats those two rights as things to be handed to different holders on purpose. The profit can go where it does the most good, or to the people who did the work, while the steering stays with those whose mandate is the survival of the enterprise itself. Control stops being a tradable asset and becomes a responsibility held in trust.
Why the lock is the point
It is tempting to treat this as a governance curiosity, an elegant arrangement for a handful of European family firms. That undersells what the asset lock does to behaviour. Once a company cannot be sold and its accumulated resources cannot be privatised, an entire class of decisions changes character. Cutting long-term investment to fatten a sale price becomes pointless when there is no sale. Strip-mining the balance sheet to reward a departing owner becomes impossible when the owner cannot extract the assets. The lock does not merely protect the mission as a sentiment. It removes the mechanism by which missions usually die, which is a transaction.
Honesty requires flagging what this evidence is. The Thomsen and colleagues (2025) piece is a conceptual research conversation among interdisciplinary scholars, not an empirical study, so it defines and theorises steward-ownership rather than proving it outperforms. It should be read as a careful account of a structure, not as a measured effect size.
Does binding capital hurt performance?
The obvious worry is that locking capital into the firm and severing profit from control must dull the incentives that make companies efficient. Here the wider ownership literature is reassuring. O'Boyle, Patel and Gonzalez-Mulé (2016), synthesising 102 samples and 56,984 firms, found the small positive ownership-performance link held across public and private firms alike, with no significant penalty attached to the private, closely held structures that steward-ownership resembles. And Blasi, Kruse and Weltmann (2013) found privately held employee-owned firms not only survived at higher rates but grew faster in employment and sales. Structures that bind ownership tightly to the enterprise, rather than treating shares as freely tradable chips, do not appear to sacrifice performance for permanence.
The read
Steward-ownership is gaining attention among entrepreneurs, business owners and policymakers, according to Thomsen and colleagues (2025), and the appeal is easy to understand for any founder who has watched an acquired company hollowed out. The lesson is not that every firm should adopt an asset lock. It is that mission durability is a design problem, not a matter of hoping future owners share your values. Values are not inheritable, and good intentions do not survive a change of ownership. A structure can. If you want a company that cannot be cashed out from under its purpose, you have to build the wall before you need it, because once control is for sale, so is everything it protects.
Sources
- Thomsen and colleagues (2025). Steward-ownership (curated research conversation), Business & Society. Defines steward-ownership by decoupling control from economic rights plus an asset lock, with Bosch as the canonical case. https://journals.sagepub.com/doi/10.1177/10564926251357812
- O'Boyle, Patel and Gonzalez-Mulé (2016). Employee ownership and firm performance: a meta-analysis. A synthesis of 102 samples and 56,984 firms finds a small but positive and statistically significant link between employee ownership and performance, robust across designs. https://www.researchgate.net/publication/304459942_Employee_ownership_and_firm_performance_a_meta-analysis_Employee_ownership_a_meta-analysis
- Blasi, Kruse and Weltmann (2013). Firm survival and performance in privately held ESOP companies. A matched longitudinal study finds privately held ESOP firms about half as likely to close and with stronger post-adoption growth. https://www.researchwithrutgers.com/en/publications/firm-survival-and-performance-in-privately-held-esop-companies