---
title: "JS SECURITY INSIGHTS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/fa4aa9bb-33f6-51cf-9bce-92f2a362abf3
json: https://whiteintel.dev/api/public/dossier/fa4aa9bb-33f6-51cf-9bce-92f2a362abf3
identifier: oo:GB-COH-16222281
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# JS SECURITY INSIGHTS LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-16222281`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/fa4aa9bb-33f6-51cf-9bce-92f2a362abf3  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/fa4aa9bb-33f6-51cf-9bce-92f2a362abf3  

## Cross-source identity

The same real-world entity, resolved across sources:

- **JS SECURITY INSIGHTS LTD** — GLEIF · `lei:1595WTVDNDAC5CHMI731` — https://whiteintel.dev/entity/48484e6c-1315-55ef-96e3-04a8dab099b2

## Ownership & control

### Owners / controllers

- **Jake Mark James Sloane** (beneficial owner) — 100% — https://whiteintel.dev/entity/060cc8fe-ba3e-554d-af85-94db3bf0ef49
- **Hayley Marie Calver** (beneficial owner) — 100% — https://whiteintel.dev/entity/81a26624-7f33-5f41-a4a1-9ea23a49ee40
- **Jake Mark James Sloane** (beneficial owner) — https://whiteintel.dev/entity/6a2cab38-ba69-40c8-ba42-619fe3d87a59
- **Hayley Marie Calver** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/1ae91b15-6ed9-46cc-93d4-4f41e840d9c4

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

A **4-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.

## Company profile (live · UK Companies House)

- **Company number:** `16222281`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2025-01-31
- **Registered office:** 8 Ascerton Close, Sidmouth, EX10 9BS, England
- **SIC:** 62020

### Officers

- SLOANE, Jake Mark James — director · British · appointed 2025-01-31

### Beneficial owners (Persons with Significant Control)

- Jake Mark James Sloane — 75–100% votes · individual PSC · England — since 2025-01-31
- Hayley Marie Calver — 75–100% shares · individual PSC · England — since 2025-01-31

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/16222281
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/16222281

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **JS SECURITY INSIGHTS LTD**. Human view: https://whiteintel.dev/entity/fa4aa9bb-33f6-51cf-9bce-92f2a362abf3 · Structured JSON: https://whiteintel.dev/api/public/dossier/fa4aa9bb-33f6-51cf-9bce-92f2a362abf3._

_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"._