---
title: "Platinum Equity Investment Holdings, LLC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3ea55131-e589-53b8-ae6a-043a207133ec
json: https://whiteintel.dev/api/public/dossier/3ea55131-e589-53b8-ae6a-043a207133ec
identifier: sec:0001634372
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Platinum Equity Investment Holdings, LLC

**Type:** Person  
**Jurisdiction:** US  
**Identifier:** `sec:0001634372`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3ea55131-e589-53b8-ae6a-043a207133ec  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3ea55131-e589-53b8-ae6a-043a207133ec  

## Ownership & control

### Holdings / subsidiaries

- **Custom Truck One Source, Inc.** (10% owner) — https://whiteintel.dev/entity/063b94b8-c0e2-5342-9204-0837fdeb64c3
- **Ingram Micro Holding Corp** (tenpercentowner) — https://whiteintel.dev/entity/155c4a82-09fd-5758-981b-cb2a2a636b2f
- **CompoSecure, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/d38b0373-bca4-5693-bd5a-078ebd72ed05
- **MCGRAW HILL, INC.** (tenpercentowner) — https://whiteintel.dev/entity/c2a7b7f7-0bf1-5fc2-9a44-581636a2ecd0
- **Custom Truck One Source, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/063b94b8-c0e2-5342-9204-0837fdeb64c3
- **Vertiv Holdings Co** (director) — https://whiteintel.dev/entity/2cbfcc6e-4743-592b-8266-71ae8b9d55ca
- **Ryerson Holding Corp** (tenpercentowner) — https://whiteintel.dev/entity/63249cf4-37ef-51af-8907-de23de6c9287
- **Vertiv Holdings Co** (tenpercentowner) — https://whiteintel.dev/entity/2cbfcc6e-4743-592b-8266-71ae8b9d55ca
- **VERRA MOBILITY Corp** (director) — https://whiteintel.dev/entity/481bf65b-de4e-5ba9-a006-b59735adad4f
- **VERRA MOBILITY Corp** (tenpercentowner) — https://whiteintel.dev/entity/481bf65b-de4e-5ba9-a006-b59735adad4f
- **WESCO AIRCRAFT HOLDINGS, INC** (tenpercentowner) — https://whiteintel.dev/entity/ae692c9a-2cb3-59b6-904a-6d41cabcb967
- **KEY ENERGY GROUP INC** (tenpercentowner) — https://whiteintel.dev/entity/0376ac45-e68f-59c4-8623-501e2adf0d39

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Platinum Equity Investment Holdings, LLC**. Human view: https://whiteintel.dev/entity/3ea55131-e589-53b8-ae6a-043a207133ec · Structured JSON: https://whiteintel.dev/api/public/dossier/3ea55131-e589-53b8-ae6a-043a207133ec._

_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"._