---
title: "DUKE JOHN D — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a49146ac-e587-55ac-ade1-159c4ae4465b
json: https://whiteintel.dev/api/public/dossier/a49146ac-e587-55ac-ade1-159c4ae4465b
identifier: sec:0002071593
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DUKE JOHN D

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0002071593`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a49146ac-e587-55ac-ade1-159c4ae4465b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a49146ac-e587-55ac-ade1-159c4ae4465b  

## Ownership & control

### Holdings / subsidiaries

- **HARVARD BIOSCIENCE INC** (director) — https://whiteintel.dev/entity/7420a66d-c9d1-5b1b-b2a2-04eb52c7a51c
- **HARVARD BIOSCIENCE INC** (officer) — https://whiteintel.dev/entity/7420a66d-c9d1-5b1b-b2a2-04eb52c7a51c

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DUKE JOHN D**. Human view: https://whiteintel.dev/entity/a49146ac-e587-55ac-ade1-159c4ae4465b · Structured JSON: https://whiteintel.dev/api/public/dossier/a49146ac-e587-55ac-ade1-159c4ae4465b._

_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"._