---
title: "SYSTEM1 GROUP PLC — Ownership Dossier"
canonical: https://whiteintel.dev/entity/65a6716f-9e1d-56bf-aeb9-9cbecb38f78e
json: https://whiteintel.dev/api/public/dossier/65a6716f-9e1d-56bf-aeb9-9cbecb38f78e
identifier: oo:GB-COH-05940040
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SYSTEM1 GROUP PLC

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-05940040`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/65a6716f-9e1d-56bf-aeb9-9cbecb38f78e  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/65a6716f-9e1d-56bf-aeb9-9cbecb38f78e  

## Cross-source identity

The same real-world entity, resolved across sources:

- **SYSTEM1 GROUP PLC** — GLEIF · `lei:213800TDLR42C3Q9ZB74` — https://whiteintel.dev/entity/240dcdaf-e23c-5f63-a685-ab56960d6f4e

## Ownership & control

### Owners / controllers

- **Mr John Victor Kearon** (beneficial owner) — 50% — https://whiteintel.dev/entity/8677fcd1-14d3-519c-86b1-2a94a44e4a4a
- **Mr John Victor Kearon** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/1826d5d1-d2cd-4691-bb6b-0f60600100c8

### Holdings / subsidiaries

- **SYSTEM1 AD RATINGS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/83afbd60-70c9-5485-9869-f19cb1eff525
- **SYSTEM1 AGENCY LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/6c94e1c2-707d-59db-8d47-c2394c607cd8
- **SYSTEM1 RESEARCH LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/bd32b176-42b9-5b94-9abf-a4f2494cbd18
- **SYSTEM1 AD RATINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/83afbd60-70c9-5485-9869-f19cb1eff525
- **SYSTEM1 RESEARCH LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/bd32b176-42b9-5b94-9abf-a4f2494cbd18
- **SYSTEM1 AGENCY LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/6c94e1c2-707d-59db-8d47-c2394c607cd8

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

A **2-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 (UK Companies House — WhiteIntel corpus snapshot, not a live lookup)

- **Company number:** `05940040`
- **Status:** Active
- **Type:** Public Limited Company
- **Incorporated:** 2006-09-19
- **Registered office:** 4 MORE LONDON RIVERSIDE, LONDON, SE1 2AU
- **SIC:** 73200 - Market research and public opinion polling

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/05940040
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/05940040

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **SYSTEM1 GROUP PLC** — https://whiteintel.dev/entity/65a6716f-9e1d-56bf-aeb9-9cbecb38f78e · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SYSTEM1 GROUP PLC**. Human view: https://whiteintel.dev/entity/65a6716f-9e1d-56bf-aeb9-9cbecb38f78e · Structured JSON: https://whiteintel.dev/api/public/dossier/65a6716f-9e1d-56bf-aeb9-9cbecb38f78e._

_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"._