---
title: "THOMPSON STEFANIE WESTPHAL — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bf3ce5ea-3ef0-5a5d-90a7-765b0d408c92
json: https://whiteintel.dev/api/public/dossier/bf3ce5ea-3ef0-5a5d-90a7-765b0d408c92
identifier: sec:0001818515
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# THOMPSON STEFANIE WESTPHAL

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001818515`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/bf3ce5ea-3ef0-5a5d-90a7-765b0d408c92  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bf3ce5ea-3ef0-5a5d-90a7-765b0d408c92  

## Ownership & control

### Holdings / subsidiaries

- **Vertex, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/327ff7b9-fef2-59b3-b8e6-9ea46c2aa9c5
- **Vertex, Inc.** (director) — https://whiteintel.dev/entity/327ff7b9-fef2-59b3-b8e6-9ea46c2aa9c5

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **THOMPSON STEFANIE WESTPHAL**. Human view: https://whiteintel.dev/entity/bf3ce5ea-3ef0-5a5d-90a7-765b0d408c92 · Structured JSON: https://whiteintel.dev/api/public/dossier/bf3ce5ea-3ef0-5a5d-90a7-765b0d408c92._

_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"._