---
title: "HOOPER SIDNEY CALVIN — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a427e4b0-0010-54e6-9c85-7f03367adbef
json: https://whiteintel.dev/api/public/dossier/a427e4b0-0010-54e6-9c85-7f03367adbef
identifier: sec:0001320449
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HOOPER SIDNEY CALVIN

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001320449`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a427e4b0-0010-54e6-9c85-7f03367adbef  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a427e4b0-0010-54e6-9c85-7f03367adbef  

## Ownership & control

### Holdings / subsidiaries

- **SUTRON CORP** (officer) — https://whiteintel.dev/entity/24f13df6-278e-5b59-bad8-03cc6d7daa35

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HOOPER SIDNEY CALVIN**. Human view: https://whiteintel.dev/entity/a427e4b0-0010-54e6-9c85-7f03367adbef · Structured JSON: https://whiteintel.dev/api/public/dossier/a427e4b0-0010-54e6-9c85-7f03367adbef._

_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"._