---
title: "GAMMA SYSTEMS (MAINTENANCE) LTD. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/22ce2cec-b92d-509a-a667-08b85f45e480
json: https://whiteintel.dev/api/public/dossier/22ce2cec-b92d-509a-a667-08b85f45e480
identifier: oo:GB-COH-12550723
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# GAMMA SYSTEMS (MAINTENANCE) LTD.

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12550723`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/22ce2cec-b92d-509a-a667-08b85f45e480  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/22ce2cec-b92d-509a-a667-08b85f45e480  

## Ownership & control

### Owners / controllers

- **SEA GREEN INVESTMENT LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/82136b37-f140-5f23-91d3-d6c8a88eacb2
- **SEA GREEN INVESTMENT LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/82136b37-f140-5f23-91d3-d6c8a88eacb2

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

A **16-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:** `12550723`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2020-04-07
- **Registered office:** Unit 4 Peartree Business Centre, South Road, Harlow, CM20 2BD, United Kingdom
- **SIC:** 43210

### Officers

- HARDING, Lacey Alexandra — director · British · appointed 2022-06-10
- NEWMAN, John Paul — director · English · appointed 2022-08-03
- WOOLLARD, Kayleigh — director · British · appointed 2022-06-10
- GREEN, David Jason — director · British · appointed 2022-06-10 · resigned 2024-06-30
- SEAGREEN, Owen — director · British · appointed 2020-04-07 · resigned 2022-08-03

### Beneficial owners (Persons with Significant Control)

- [Sea Green Investment Limited](https://whiteintel.dev/entity/82136b37-f140-5f23-91d3-d6c8a88eacb2) — 75–100% shares · corporate PSC · United Kingdom — since 2020-04-07

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12550723
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12550723

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GAMMA SYSTEMS (MAINTENANCE) LTD.**. Human view: https://whiteintel.dev/entity/22ce2cec-b92d-509a-a667-08b85f45e480 · Structured JSON: https://whiteintel.dev/api/public/dossier/22ce2cec-b92d-509a-a667-08b85f45e480._

_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"._