---
title: "DELTAXML LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5d7d30b7-c193-5509-af64-d7a5b46e19ef
json: https://whiteintel.dev/api/public/dossier/5d7d30b7-c193-5509-af64-d7a5b46e19ef
identifier: oo:GB-COH-02528681
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DELTAXML LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-02528681`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5d7d30b7-c193-5509-af64-d7a5b46e19ef  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5d7d30b7-c193-5509-af64-d7a5b46e19ef  

## Ownership & control

### Owners / controllers

- **Mr Semer Geoffrey Thomas La Fontaine** (beneficial owner) — 75% — https://whiteintel.dev/entity/bd633bbf-fdc0-5161-bdf9-b6934fe7398f
- **Mrs Diana Mary La Fontaine** (beneficial owner) — 50% — https://whiteintel.dev/entity/3980e3ec-5462-50a7-a215-763c54d8bda7
- **DELTAMAN GROUP LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/7be88d43-96a2-5215-88df-50df12e35a94
- **Mrs Diana Mary La Fontaine** (beneficial owner) — 50% — https://whiteintel.dev/entity/7bc2f88c-333d-5dd6-b4b9-f58c1c77c785
- **Mr Semer Geoffrey Thomas La Fontaine** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/cd0af2ad-523e-420b-9136-4976c5c5229f
- **Mr Semer Geoffrey Thomas La Fontaine** (beneficial owner) — 75% — https://whiteintel.dev/entity/bd378d83-5c32-5599-ae02-b51798ab2ad5
- **Mrs Diana Mary La Fontaine** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/061d3d29-776c-40e5-a20a-294a8303b4ff
- **Mr Semer Geoffrey Thomas La Fontaine** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/5bd7325f-7cf2-46f8-8ca9-c7d1c4e1d5b1
- **DELTAMAN GROUP LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/7be88d43-96a2-5215-88df-50df12e35a94
- **Mrs Diana Mary La Fontaine** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/a1879e46-3242-4e4f-b82d-fe2d591b76cf

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

A **23-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:** `02528681`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1990-08-07
- **Registered office:** Malvern Hills Science Park, Geraldine Road, Malvern, Worcestershire, WR14 3SZ
- **SIC:** 58290, 62020, 62090

### Officers

- HYNES, Eithne Catherine — director · Irish · appointed 2024-10-01
- LA FONTAINE, Semer Geoffrey Thomas — director · British
- LA FONTAINE, Diana Mary — secretary · British · resigned 2024-08-27
- BARRATT, Phillip Mark — director · British · appointed 2018-12-04 · resigned 2021-09-30
- LA FONTAINE, Diana Mary — director · British · appointed 2016-09-01 · resigned 2018-12-04
- MITCHELL, Tristan Phillip — director · British · appointed 2018-12-04 · resigned 2025-10-31
- THOMAS, Mark Russell — director · British · appointed 2021-10-01 · resigned 2025-04-30

### Beneficial owners (Persons with Significant Control)

- [Deltaman Group Limited](https://whiteintel.dev/entity/7be88d43-96a2-5215-88df-50df12e35a94) — 75–100% shares · corporate PSC · United Kingdom — since 2021-01-28
- Mr Semer Geoffrey Thomas La Fontaine — 50–75% shares · individual PSC — ceased 2021-01-28
- Mrs Diana Mary La Fontaine — 25–50% shares · individual PSC — ceased 2021-01-28
- Mr Semer Geoffrey Thomas La Fontaine — 50–75% shares · individual PSC — ceased 2021-01-28
- Mrs Diana Mary La Fontaine — 25–50% shares · individual PSC — ceased 2021-01-28

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/02528681
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/02528681

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **DELTAXML LIMITED** — https://whiteintel.dev/entity/5d7d30b7-c193-5509-af64-d7a5b46e19ef · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DELTAXML LIMITED**. Human view: https://whiteintel.dev/entity/5d7d30b7-c193-5509-af64-d7a5b46e19ef · Structured JSON: https://whiteintel.dev/api/public/dossier/5d7d30b7-c193-5509-af64-d7a5b46e19ef._

_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"._