---
title: "SEMASS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/804accc5-4c2b-5a71-89bf-0c512d3f0bfe
json: https://whiteintel.dev/api/public/dossier/804accc5-4c2b-5a71-89bf-0c512d3f0bfe
identifier: oo:GB-COH-12528206
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SEMASS LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12528206`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/804accc5-4c2b-5a71-89bf-0c512d3f0bfe  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/804accc5-4c2b-5a71-89bf-0c512d3f0bfe  

## Ownership & control

### Owners / controllers

- **Mr Andrew David March** (beneficial owner) — 50% — https://whiteintel.dev/entity/e1d955de-7f00-5629-9a28-ee8b6dd5f06b
- **Mr Ian Robert Hobson** (beneficial owner) — 50% — https://whiteintel.dev/entity/6a9dba83-8b3b-58a0-95b4-d4b02622f882
- **Mrs Alison Clare March** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/b9300c90-2a2a-4e44-ba4a-ca95178b085b
- **Mr Andrew David March** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8052e247-6ce3-45ad-93f2-b28454e1ef19
- **Mr Ian Robert Hobson** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/85bc78b4-f72c-4d62-9a85-e3dcf91a0477

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

A **5-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:** `12528206`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2020-03-20
- **Registered office:** 195 St. Marys Lane, Upminster, RM14 3BU, England
- **SIC:** 70229, 71122

### Officers

- MARCH, Alison Clare — director · British · appointed 2023-08-08
- MARCH, Andrew David — director · British · appointed 2020-03-20
- HOBSON, Ian Robert — director · British · appointed 2020-03-20 · resigned 2022-11-15

### Beneficial owners (Persons with Significant Control)

- Mrs Alison Clare March — 25–50% shares · individual PSC · England — since 2023-03-08
- Mr Andrew David March — 25–50% shares · individual PSC · England — since 2020-03-20
- Mr Ian Robert Hobson — 25–50% shares · individual PSC — ceased 2022-11-15

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12528206
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12528206

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SEMASS LTD**. Human view: https://whiteintel.dev/entity/804accc5-4c2b-5a71-89bf-0c512d3f0bfe · Structured JSON: https://whiteintel.dev/api/public/dossier/804accc5-4c2b-5a71-89bf-0c512d3f0bfe._

_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"._