---
title: "THOMPSON DUFF — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f2eedb68-b473-592e-92f9-e1dcd1d5e147
json: https://whiteintel.dev/api/public/dossier/f2eedb68-b473-592e-92f9-e1dcd1d5e147
identifier: sec:0001256165
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# THOMPSON DUFF

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001256165`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f2eedb68-b473-592e-92f9-e1dcd1d5e147  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f2eedb68-b473-592e-92f9-e1dcd1d5e147  

## Ownership & control

### Holdings / subsidiaries

- **CALDERA INTERNATIONAL INC/UT** (director) — https://whiteintel.dev/entity/bbd03269-bcec-56ce-8c6c-da80aa02dd15

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **THOMPSON DUFF**. Human view: https://whiteintel.dev/entity/f2eedb68-b473-592e-92f9-e1dcd1d5e147 · Structured JSON: https://whiteintel.dev/api/public/dossier/f2eedb68-b473-592e-92f9-e1dcd1d5e147._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._