---
title: "Onex Advisor Subco III LLC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5be578ef-880f-5c02-83ef-7fbd18608118
json: https://whiteintel.dev/api/public/dossier/5be578ef-880f-5c02-83ef-7fbd18608118
identifier: sec:0001695911
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Onex Advisor Subco III LLC

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001695911`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5be578ef-880f-5c02-83ef-7fbd18608118  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5be578ef-880f-5c02-83ef-7fbd18608118  

## Ownership & control

### Holdings / subsidiaries

- **Emerald Holding, Inc.** (director) — https://whiteintel.dev/entity/b54e9c58-908c-5741-8b59-a240ba276312
- **Emerald Holding, Inc.** (director) — https://whiteintel.dev/entity/b54e9c58-908c-5741-8b59-a240ba276312
- **Emerald Holding, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/b54e9c58-908c-5741-8b59-a240ba276312
- **JELD-WEN Holding, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/f5bae734-554e-5493-978b-9b6a3784f9ce

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Onex Advisor Subco III LLC**. Human view: https://whiteintel.dev/entity/5be578ef-880f-5c02-83ef-7fbd18608118 · Structured JSON: https://whiteintel.dev/api/public/dossier/5be578ef-880f-5c02-83ef-7fbd18608118._

_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"._