---
title: "HOLDFAST CONSULTING LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/6047e68f-488b-5b0f-9caa-803070bbb2a8
json: https://whiteintel.dev/api/public/dossier/6047e68f-488b-5b0f-9caa-803070bbb2a8
identifier: oo:GB-COH-12156426
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HOLDFAST CONSULTING LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12156426`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/6047e68f-488b-5b0f-9caa-803070bbb2a8  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/6047e68f-488b-5b0f-9caa-803070bbb2a8  

## Ownership & control

### Owners / controllers

- **Mrs Jacqueline Ann Harman Slack** (beneficial owner) — 50% — https://whiteintel.dev/entity/22de7ba3-19c9-5474-8a81-341e2d6f3e89
- **Mr Ian Slack** (beneficial owner) — 100% — https://whiteintel.dev/entity/aaf41433-92ba-5848-b871-b3fd04b13a8a
- **Mrs Jacqueline Ann Harman Slack** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/67a81031-8116-4d2f-81d8-3d1babbd9f84
- **Mr Ian Slack** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c7f92b14-277b-4aa3-be06-c91976db1177

### 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:** `12156426`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-08-14
- **Registered office:** 12 Wright Grove, Halstead, CO9 2GP, England
- **SIC:** 70229

### Officers

- SLACK, Ian — director · British · appointed 2019-08-14

### Beneficial owners (Persons with Significant Control)

- Mrs Jacqueline Ann Harman Slack — 25–50% shares · individual PSC · England — since 2024-05-31
- Mr Ian Slack — 75–100% shares · individual PSC · England — since 2019-08-14

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12156426
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12156426

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HOLDFAST CONSULTING LIMITED**. Human view: https://whiteintel.dev/entity/6047e68f-488b-5b0f-9caa-803070bbb2a8 · Structured JSON: https://whiteintel.dev/api/public/dossier/6047e68f-488b-5b0f-9caa-803070bbb2a8._

_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"._