---
title: "Tennor Holdings: Profile, People and Investments"
description: "Tennor Holdings, an investment company in Schiphol, Netherlands. Key facts, people, strategy and news, from public filings, company sites and press."
url: https://vestdoor.com/family-office/tennor-holdings
updated: 2026-11-11
---

# Tennor Holdings

Lars Windhorst's investment vehicle (principal investment company).

> **Tennor Holdings is no longer an operating family office**
>
> Bankrupt: declared 17 June 2025 at the request of the Dutch tax authority; curator Wouter Jongepier; >EUR 130m claims filed, >EUR 1bn expected

## Decision makers

| Name | Role |
| --- | --- |
| Lars Windhorst | Founder; director (bestuurder) |

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## Latest investments

[Access Tennor Holdings investments](https://vestdoor.com/app/signup)

## News

- 22 Jun 2026: Second curator report: near-empty shell
- 30 Mar 2026: UK court gives Windhorst suspended 18-month sentence over unpaid EUR 27m Tennor debt
- 17 Jun 2025: Tennor Holding declared bankrupt
- May 2019: Sapinda Holding renamed Tennor Holding

## Investment strategy

Historically: investments in agriculture, food, mining, oil and gas, media, tech, real estate; public and private

| Focus | Detail |
| --- | --- |
| Direct vs funds | Direct |

## Key facts

- **Type:** Investment company
- **Headquarters:** Schiphol, Netherlands
- **Founded:** 2009 (Sapinda Holding BV, Amsterdam); Sapinda group co-founded 2004
- **Family:** Lars Windhorst
- **Source of wealth:** Bond-financed principal investing (Sapinda/Tennor)
- **Website:** [tennor.com](https://www.tennor.com/)

## Listed in

- [Family offices in the Netherlands](https://vestdoor.com/family-offices/europe/netherlands)

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## Frequently asked questions

### What type of organisation is Tennor Holdings?

Tennor Holdings is described as: Lars Windhorst's investment vehicle (principal investment company).

### Where is Tennor Holdings based?

Tennor Holdings is headquartered in Schiphol, Netherlands.

### Which family is behind Tennor Holdings?

Lars Windhorst. Source of wealth: Bond-financed principal investing (Sapinda/Tennor).

### When was Tennor Holdings founded?

2009 (Sapinda Holding BV, Amsterdam); Sapinda group co-founded 2004.

### Who runs Tennor Holdings?

Public roles include Lars Windhorst (Founder; director (bestuurder)).

### What does Tennor Holdings invest in?

Historically: investments in agriculture, food, mining, oil and gas, media, tech, real estate; public and private.

---

Canonical: https://vestdoor.com/family-office/tennor-holdings
Markdown twin: https://vestdoor.com/family-office/tennor-holdings.md