---
title: "Tzuo Tien — Ownership Dossier"
canonical: https://whiteintel.dev/entity/443f0809-ccf4-598e-a3cd-d471d38cb3b3
json: https://whiteintel.dev/api/public/dossier/443f0809-ccf4-598e-a3cd-d471d38cb3b3
identifier: sec:0001735409
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# Tzuo Tien

**Type:** Person  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001735409`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/443f0809-ccf4-598e-a3cd-d471d38cb3b3  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/443f0809-ccf4-598e-a3cd-d471d38cb3b3  

## Ownership & control

### Holdings / subsidiaries

- **Amplitude, Inc.** (director) — https://whiteintel.dev/entity/5962e717-46d4-57e8-9ca4-41e4fcf6f1ab
- **Amplitude, Inc.** (director) — https://whiteintel.dev/entity/5962e717-46d4-57e8-9ca4-41e4fcf6f1ab
- **ZUORA INC** (officer) — https://whiteintel.dev/entity/aa3bf4d0-3010-53fb-85a9-473f898ce623
- **ZUORA INC** (10% owner) — https://whiteintel.dev/entity/aa3bf4d0-3010-53fb-85a9-473f898ce623
- **ZUORA INC** (10% owner) — https://whiteintel.dev/entity/aa3bf4d0-3010-53fb-85a9-473f898ce623
- **ZUORA INC** (10% owner) — https://whiteintel.dev/entity/aa3bf4d0-3010-53fb-85a9-473f898ce623
- **Amplitude, Inc.** (director) — https://whiteintel.dev/entity/5962e717-46d4-57e8-9ca4-41e4fcf6f1ab
- **ZUORA INC** (officer) — https://whiteintel.dev/entity/aa3bf4d0-3010-53fb-85a9-473f898ce623
- **ZUORA INC** (tenpercentowner) — https://whiteintel.dev/entity/aa3bf4d0-3010-53fb-85a9-473f898ce623
- **ZUORA INC** (director) — https://whiteintel.dev/entity/aa3bf4d0-3010-53fb-85a9-473f898ce623
- **VONAGE HOLDINGS CORP** (director) — https://whiteintel.dev/entity/7f8ae74a-aeef-57ec-a851-c7c57d37f8d7

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Tzuo Tien**. Human view: https://whiteintel.dev/entity/443f0809-ccf4-598e-a3cd-d471d38cb3b3 · Structured JSON: https://whiteintel.dev/api/public/dossier/443f0809-ccf4-598e-a3cd-d471d38cb3b3._

_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"._