---
title: "G.C.M. PLUMBING, HEATING & VENTILATION CO. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8b2d8a22-772d-5b4a-b9b4-3f6348488321
json: https://whiteintel.dev/api/public/dossier/8b2d8a22-772d-5b4a-b9b4-3f6348488321
identifier: icij:icijol-85011023
jurisdiction: AW
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# G.C.M. PLUMBING, HEATING & VENTILATION CO.

**Type:** Company  
**Jurisdiction:** AW  
**Identifier:** `icij:icijol-85011023`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/8b2d8a22-772d-5b4a-b9b4-3f6348488321  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8b2d8a22-772d-5b4a-b9b4-3f6348488321  

## Ownership & control

### Owners / controllers

- **LYDER, GREGORY CHARLES** (owner of) — https://whiteintel.dev/entity/d1d63b4b-b5c6-5b1d-8a1d-1312dd01c440

### UBO chain (walk to the ultimate owner)

A **1-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/85011023

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **G.C.M. PLUMBING, HEATING & VENTILATION CO.** — https://whiteintel.dev/entity/8b2d8a22-772d-5b4a-b9b4-3f6348488321 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **G.C.M. PLUMBING, HEATING & VENTILATION CO.**. Human view: https://whiteintel.dev/entity/8b2d8a22-772d-5b4a-b9b4-3f6348488321 · Structured JSON: https://whiteintel.dev/api/public/dossier/8b2d8a22-772d-5b4a-b9b4-3f6348488321._

_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"._