---
title: "WANSEM PAUL J VAN DER — Ownership Dossier"
canonical: https://whiteintel.dev/entity/fd859634-7c8a-57fc-bfc0-9e2a43955bf4
json: https://whiteintel.dev/api/public/dossier/fd859634-7c8a-57fc-bfc0-9e2a43955bf4
identifier: sec:0001223907
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# WANSEM PAUL J VAN DER

**Type:** Company  
**Jurisdiction:** US  
**Identifier:** `sec:0001223907`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/fd859634-7c8a-57fc-bfc0-9e2a43955bf4  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/fd859634-7c8a-57fc-bfc0-9e2a43955bf4  

## Ownership & control

### Holdings / subsidiaries

- **AMTECH SYSTEMS INC** (director) — https://whiteintel.dev/entity/239a846b-3b8a-59a7-991b-d74b5a68208e
- **AMTECH SYSTEMS INC** (officer) — https://whiteintel.dev/entity/239a846b-3b8a-59a7-991b-d74b5a68208e
- **BTU INTERNATIONAL INC** (director) — https://whiteintel.dev/entity/04d1d476-5898-59e4-aa2d-e3f1cb1dca19
- **BTU INTERNATIONAL INC** (tenpercentowner) — https://whiteintel.dev/entity/04d1d476-5898-59e4-aa2d-e3f1cb1dca19
- **BTU INTERNATIONAL INC** (officer) — https://whiteintel.dev/entity/04d1d476-5898-59e4-aa2d-e3f1cb1dca19

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **WANSEM PAUL J VAN DER**. Human view: https://whiteintel.dev/entity/fd859634-7c8a-57fc-bfc0-9e2a43955bf4 · Structured JSON: https://whiteintel.dev/api/public/dossier/fd859634-7c8a-57fc-bfc0-9e2a43955bf4._

_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"._