---
title: "NORTHSITE SERVICES LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/b6f27f64-8cb1-53ca-ba06-288bf96bf5cb
json: https://whiteintel.dev/api/public/dossier/b6f27f64-8cb1-53ca-ba06-288bf96bf5cb
identifier: oo:GB-COH-13930440
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# NORTHSITE SERVICES LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-13930440`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/b6f27f64-8cb1-53ca-ba06-288bf96bf5cb  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/b6f27f64-8cb1-53ca-ba06-288bf96bf5cb  

## Ownership & control

### Owners / controllers

- **Mr Mark Slack** (beneficial owner) — 100% — https://whiteintel.dev/entity/4ca174de-f1bf-595d-9363-7c18898020cf
- **Mr Mark Slack** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/d2fd50b3-d75c-42b9-9d7b-2b656eb74ff5

### 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 (live · UK Companies House)

- **Company number:** `13930440`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2022-02-21
- **Registered office:** 18 Wesley Street, Castleford, West Yorkshire, WF10 1AE, England
- **SIC:** 43999

### Officers

- SLACK, Mark — director · British · appointed 2022-02-21

### Beneficial owners (Persons with Significant Control)

- Mr Mark Slack — 75–100% shares · individual PSC · United Kingdom — since 2022-02-21

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/13930440
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/13930440

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **NORTHSITE SERVICES LTD**. Human view: https://whiteintel.dev/entity/b6f27f64-8cb1-53ca-ba06-288bf96bf5cb · Structured JSON: https://whiteintel.dev/api/public/dossier/b6f27f64-8cb1-53ca-ba06-288bf96bf5cb._

_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"._