---
title: "NORTH BRIDGE VENTURE PARTNERS IV B LP — Ownership Dossier"
canonical: https://whiteintel.dev/entity/c961ef83-666e-5b63-b2a6-e586bc2fc61b
json: https://whiteintel.dev/api/public/dossier/c961ef83-666e-5b63-b2a6-e586bc2fc61b
identifier: sec:0001096612
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# NORTH BRIDGE VENTURE PARTNERS IV B LP

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001096612`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/c961ef83-666e-5b63-b2a6-e586bc2fc61b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/c961ef83-666e-5b63-b2a6-e586bc2fc61b  

## Ownership & control

### Holdings / subsidiaries

- **A123 SYSTEMS INC** (tenpercentowner) — https://whiteintel.dev/entity/68997e8a-b7e8-5cab-881f-d5d8aac0854b
- **STARENT NETWORKS, CORP.** (tenpercentowner) — https://whiteintel.dev/entity/53fe3b4f-b644-5972-85e5-16967ff2cb85
- **SOUNDBITE COMMUNICATIONS INC** (tenpercentowner) — https://whiteintel.dev/entity/3bf5be6f-130b-563a-a297-a3251a1a7ecf

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **NORTH BRIDGE VENTURE PARTNERS IV B LP**. Human view: https://whiteintel.dev/entity/c961ef83-666e-5b63-b2a6-e586bc2fc61b · Structured JSON: https://whiteintel.dev/api/public/dossier/c961ef83-666e-5b63-b2a6-e586bc2fc61b._

_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"._