---
title: "MCMAHON WILLIAM J — Ownership Dossier"
canonical: https://whiteintel.dev/entity/00c047d2-15e4-5ed8-9323-e3c2e6d25236
json: https://whiteintel.dev/api/public/dossier/00c047d2-15e4-5ed8-9323-e3c2e6d25236
identifier: sec:0001162762
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MCMAHON WILLIAM J

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001162762`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/00c047d2-15e4-5ed8-9323-e3c2e6d25236  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/00c047d2-15e4-5ed8-9323-e3c2e6d25236  

## Ownership & control

### Holdings / subsidiaries

- **CATALYTICA COMBUSTION SYSTEMS INC** (officer) — https://whiteintel.dev/entity/380ce928-f07b-526f-8bc9-c3e31f7c0b24
- **ACORN ENERGY, INC.** (other) — https://whiteintel.dev/entity/e0377eba-2a99-5fe5-8451-37bae7383269
- **RENEGY HOLDINGS, INC.** (officer) — https://whiteintel.dev/entity/d0e002cb-17ec-513b-8b5e-456998fa4c66
- **ACORN ENERGY, INC.** (officer) — https://whiteintel.dev/entity/e0377eba-2a99-5fe5-8451-37bae7383269

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MCMAHON WILLIAM J**. Human view: https://whiteintel.dev/entity/00c047d2-15e4-5ed8-9323-e3c2e6d25236 · Structured JSON: https://whiteintel.dev/api/public/dossier/00c047d2-15e4-5ed8-9323-e3c2e6d25236._

_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"._