---
title: "ALTAIR ENGINEERING LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8e90e0a4-e7d2-55fb-98cc-4ae7e01877b5
json: https://whiteintel.dev/api/public/dossier/8e90e0a4-e7d2-55fb-98cc-4ae7e01877b5
identifier: oo:GB-COH-03051069
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ALTAIR ENGINEERING LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-03051069`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8e90e0a4-e7d2-55fb-98cc-4ae7e01877b5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8e90e0a4-e7d2-55fb-98cc-4ae7e01877b5  

## Ownership & control

### Owners / controllers

- **Mr James Ralph Scapa** (beneficial owner) — 50% — https://whiteintel.dev/entity/9e3bc12b-4bf5-50b2-9692-52171981b5fe
- **Mr George John Christ** (beneficial owner) — 50% — https://whiteintel.dev/entity/9ce4c00e-4e35-565c-8652-df3533f30051
- **Altair Engineering Inc** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/b2e29a05-607c-4b05-babb-eab912fda298
- **Altair Engineering Inc** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/a4d47976-bacb-4c80-a679-d36334c00501
- **Mr James Ralph Scapa** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8749f318-5842-421c-9efd-60e3213629d7
- **Mr George John Christ** (beneficial owner) — https://whiteintel.dev/entity/e2ff84e5-5113-428c-8022-6c571b07a0c1
- **Siemens Aktiengesellschaft** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/ce3807e6-eb74-4e09-b628-b417b5574921

### Holdings / subsidiaries

- **DECEMBER 2015 SOFTWARE LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/300b737e-780e-5d18-9fd8-99c852d38d3e

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

A **7-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:** `03051069`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1995-04-28
- **Registered office:** Pinehurst 2 Pinehurst Road, Farnborough, Hampshire, GU14 7BF, United Kingdom
- **SIC:** 62090

### Officers

- MONAGHAN, Teresa Jane — director · British · appointed 2025-05-29
- SHEATH, Benjamin Miles — director · British · appointed 2025-05-29
- FOSTER, Helen Jane — secretary · British · appointed 2000-04-03 · resigned 2017-10-01
- JONES, Virginia Luci — secretary · appointed 2019-02-22 · resigned 2025-06-18
- NICHOLS, Martin — secretary · American · appointed 1995-06-12 · resigned 2000-04-03
- SWIFT INCORPORATIONS LIMITED — corporate nominee secretary · appointed 1995-04-28 · resigned 1995-06-12
- BUCHANAN, Jamie Alexander — director · British · appointed 2024-03-14 · resigned 2025-06-20
- CHRIST, George John — director · American · appointed 1995-06-12 · resigned 2019-03-28
- JONES, Royston Delwyn, Doctor — director · British · appointed 1998-08-11 · resigned 2025-06-20
- MAITRA, Raoul Kumar — director · American · appointed 2024-03-14 · resigned 2025-06-18
- NICHOLS, Martin — director · American · appointed 1995-06-12 · resigned 2003-03-25
- SCAPA, James Ralph — director · American · appointed 1995-06-12 · resigned 2025-04-02
- INSTANT COMPANIES LIMITED — corporate nominee director · appointed 1995-04-28 · resigned 1995-06-12

### Beneficial owners (Persons with Significant Control)

- [Siemens Aktiengesellschaft](https://whiteintel.dev/entity/ce3807e6-eb74-4e09-b628-b417b5574921) — 75–100% shares · corporate PSC · Germany — since 2025-03-26
- [Altair Engineering Inc](https://whiteintel.dev/entity/b2e29a05-607c-4b05-babb-eab912fda298) — 75–100% shares · corporate PSC · United States — ceased 2025-03-26
- [Altair Engineering Inc](https://whiteintel.dev/entity/a4d47976-bacb-4c80-a679-d36334c00501) — 75–100% shares · corporate PSC · United States — ceased 2021-11-05
- Mr George John Christ — 25–50% votes · individual PSC · United States — ceased 2022-03-29
- Mr James Ralph Scapa — 25–50% shares · individual PSC · United States — ceased 2022-03-29

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03051069
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03051069

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ALTAIR ENGINEERING LIMITED**. Human view: https://whiteintel.dev/entity/8e90e0a4-e7d2-55fb-98cc-4ae7e01877b5 · Structured JSON: https://whiteintel.dev/api/public/dossier/8e90e0a4-e7d2-55fb-98cc-4ae7e01877b5._

_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"._