---
title: "Prof William Daniel Toff — Ownership Dossier"
canonical: https://whiteintel.dev/entity/094ddac5-6e85-57c1-8a67-fd2b5b6b797c
json: https://whiteintel.dev/api/public/dossier/094ddac5-6e85-57c1-8a67-fd2b5b6b797c
identifier: oo-person:GB-COH-PER-11514785-VybIGQ_1sZqOLhpJ1mdSD6eSiJg
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Prof William Daniel Toff

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `oo-person:GB-COH-PER-11514785-VybIGQ_1sZqOLhpJ1mdSD6eSiJg`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/094ddac5-6e85-57c1-8a67-fd2b5b6b797c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/094ddac5-6e85-57c1-8a67-fd2b5b6b797c  

## Ownership & control

### Holdings / subsidiaries

- **HEARTWIZE** (beneficial owner) — https://whiteintel.dev/entity/742d546e-2d89-531c-aeba-cffbe82206f3

## Provenance

- OpenOwnership — https://www.openownership.org

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Prof William Daniel Toff**. Human view: https://whiteintel.dev/entity/094ddac5-6e85-57c1-8a67-fd2b5b6b797c · Structured JSON: https://whiteintel.dev/api/public/dossier/094ddac5-6e85-57c1-8a67-fd2b5b6b797c._

_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"._