---
title: "AMETHYST GI LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/821fa045-3f21-5272-b8eb-bb3fce19cbb7
json: https://whiteintel.dev/api/public/dossier/821fa045-3f21-5272-b8eb-bb3fce19cbb7
identifier: oo:GB-COH-11966969
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# AMETHYST GI LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-11966969`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/821fa045-3f21-5272-b8eb-bb3fce19cbb7  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/821fa045-3f21-5272-b8eb-bb3fce19cbb7  

## Ownership & control

### Owners / controllers

- **Mrs Ida Dr Gulyasne Schreiter** (beneficial owner) — 50% — https://whiteintel.dev/entity/a41ba6c2-639b-57a5-aa01-4a3b75517bac
- **Dr Gabor Gulyas** (beneficial owner) — 50% — https://whiteintel.dev/entity/56c4c620-181f-568c-ad0d-4f8747ac04d1
- **Dr Gabor Gulyas** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/45f2e08c-5f72-45d7-bc15-84df12c86faa
- **Mrs Ida Dr Gulyasne Schreiter** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8117aaa0-e453-48ad-ba7c-d153842f8147

### 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:** `11966969`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-04-29
- **Registered office:** 57 Denton Road, Norwich, Norfolk, NR3 4DP, United Kingdom
- **SIC:** 49390, 53201, 81299, 96010

### Officers

- DR GULYASNE SCHREITER, Ida — director · Hungarian · appointed 2019-04-29
- GULYAS, Gabor, Dr — director · Hungarian · appointed 2019-04-29

### Beneficial owners (Persons with Significant Control)

- Mrs Ida Dr Gulyasne Schreiter — 25–50% shares · individual PSC · United Kingdom — since 2019-04-29
- Dr Gabor Gulyas — 25–50% shares · individual PSC · United Kingdom — since 2019-04-29

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11966969
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11966969

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **AMETHYST GI LTD**. Human view: https://whiteintel.dev/entity/821fa045-3f21-5272-b8eb-bb3fce19cbb7 · Structured JSON: https://whiteintel.dev/api/public/dossier/821fa045-3f21-5272-b8eb-bb3fce19cbb7._

_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"._