ALTAIR ENGINEERING LIMITED
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Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2027-04-01 (in 11mo)
Last made up 2026-03-18
Watchouts
Cash
£34M
+57.4% vs 2023
Net assets
£10M
-88.5% vs 2023
Employees
207
+2.5% vs 2023
Profit before tax
-£76M
-211.6% vs 2023
Watchouts
Facts from the Companies House register and the latest accounts — not a rating
-
4 officer resignations in last 12 months
Multiple officers have left the board recently — see the People section for who.
-
1 PSC ceased in last 24 months
Significant control changed hands — see the Ownership section.
Name history
Renamed 1 time since incorporation
- ALTAIR ENGINEERING LIMITED 1995-07-12 → present
- DREAMCLERK LIMITED 1995-04-28 → 1995-07-12
Net assets
2-year trend · vs Technology median
Accounts
2-year trend · latest reflected 2024-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Turnover | £38,335,010 | £49,437,989 | |
| Operating profit | £105,323 | £1,939,008 | |
| Profit before tax | £68,020,356 | -£75,891,041 | |
| Net profit | £62,272,214 | -£76,156,411 | |
| Cash | £21,478,588 | £33,815,913 | |
| Total assets less current liabilities | — | — | |
| Net assets | £85,349,119 | £9,808,521 | |
| Equity | £85,349,119 | £9,808,521 | |
| Average employees | 202 | 207 | |
| Wages | £15,757,222 | £16,726,776 |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Operating margin | 0.3% | 3.9% | |
| Net margin | 162.4% | -154.0% | |
| Gearing (liabilities / total assets) | 43.8% | 88.0% | |
| Current ratio | 2.41x | 2.26x | |
| Interest cover | 0.06x | 1.17x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Audit & accounting basis
- Accounting basis
- IFRS
- Reporting scope
- Standalone (parent only)
- Auditor
- Hawsons Chartered Accountants
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“In auditing the financial statements, we have concluded that the directors' use of the going concern basis of accounting in the preparation of the financial statements is appropriate.”
Significant events
- “The company reported a loss in 2024, albeit, this is wholly due to the exceptional item recognised in the period relating to the goodwill impairment charge following the use of the Siemens discounted cash flow methodology for the impairment review.”
- “On 30 September 2023, World Programming Limited, a subsidiary of the company, transferred its trade and assets to Altair Engineering Limited. This resulted in an impairment of the investment in World Programming Limited, which is recognised within exceptional items (note 6).”
- “On 26th March 2025, Altair Engineering Incorporated was acquired by Siemens Aktiengesellschaft.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
2 active · 11 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| MONAGHAN, Teresa Jane | Director | 2025-05-29 | Dec 1972 | British |
| SHEATH, Benjamin Miles | Director | 2025-05-29 | Nov 1971 | British |
Show 11 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| FOSTER, Helen Jane | Secretary | 2000-04-03 | 2017-10-01 |
| JONES, Virginia Luci | Secretary | 2019-02-22 | 2025-06-18 |
| NICHOLS, Martin | Secretary | 1995-06-12 | 2000-04-03 |
| SWIFT INCORPORATIONS LIMITED | Corporate Nominee Secretary | 1995-04-28 | 1995-06-12 |
| BUCHANAN, Jamie Alexander | Director | 2024-03-14 | 2025-06-20 |
| CHRIST, George John | Director | 1995-06-12 | 2019-03-28 |
| JONES, Royston Delwyn, Doctor | Director | 1998-08-11 | 2025-06-20 |
| MAITRA, Raoul Kumar | Director | 2024-03-14 | 2025-06-18 |
| NICHOLS, Martin | Director | 1995-06-12 | 2003-03-25 |
| SCAPA, James Ralph | Director | 1995-06-12 | 2025-04-02 |
| INSTANT COMPANIES LIMITED | Corporate Nominee Director | 1995-04-28 | 1995-06-12 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Siemens Aktiengesellschaft | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2025-03-26 | Active |
| Altair Engineering Inc | Corporate entity | Shares 75–100% | 2022-03-29 | Ceased 2025-03-26 |
| Altair Engineering Inc | Corporate entity | Shares 75–100% | 2016-04-28 | Ceased 2021-11-05 |
| Mr George John Christ | Individual | Voting 25–50% | 2016-04-06 | Ceased 2022-03-29 |
| Mr James Ralph Scapa | Individual | Shares 25–50%, Voting 25–50% | 2016-04-06 | Ceased 2022-03-29 |
Filing timeline
Last 20 of 124 total filings
Material constitutional events — rename, articles re-file, resolution
- 2025-06-30 MA Memorandum articles
- 2025-06-30 RESOLUTIONS Resolution
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-03-18 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2026-01-29 | AA | accounts | Accounts with accounts type full | |
| 2026-01-06 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2025-08-01 | AD04 | address | Move registers to registered office company with new address | |
| 2025-08-01 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-06-30 | MA | incorporation | Memorandum articles | |
| 2025-06-30 | RESOLUTIONS | resolution | Resolution | |
| 2025-06-26 | AD03 | address | Move registers to sail company with new address | |
| 2025-06-26 | AD02 | address | Change sail address company with new address | |
| 2025-06-20 | TM01 | officers | Termination director company with name termination date | |
| 2025-06-20 | TM01 | officers | Termination director company with name termination date | |
| 2025-06-20 | TM01 | officers | Termination director company with name termination date | |
| 2025-06-20 | TM02 | officers | Termination secretary company with name termination date | |
| 2025-06-11 | PSC07 | persons-with-significant-control | Cessation of a person with significant control | |
| 2025-06-11 | PSC02 | persons-with-significant-control | Notification of a person with significant control | |
| 2025-06-02 | AP01 | officers | Appoint person director company with name date | |
| 2025-06-02 | AP01 | officers | Appoint person director company with name date | |
| 2025-05-27 | TM01 | officers | Termination director company with name termination date | |
| 2025-04-22 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-10-11 | AA | accounts | Accounts with accounts type full |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 18
- Capital events
- 0
- Officers appointed
- 2
- Officers resigned
- 4
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.
Year-on-year
FY2023 → FY2024 · period ending 2024-12-31 vs 2023-12-31
-
Turnover
+29%
£38,335,010 £49,437,989
-
Cash
+57.4%
£21,478,588 £33,815,913
-
Net assets
-88.5%
£85,349,119 £9,808,521
-
Employees
+2.5%
202 207
-
Operating profit
+1,741%
£105,323 £1,939,008
-
Profit before tax
-211.6%
£68,020,356 -£75,891,041
-
Wages
+6.2%
£15,757,222 £16,726,776
Each % is (latest − prior) ÷ |prior| for the line item as filed. Periods don't have to be exactly 12 months apart — a long or short period (typical around incorporation or year-end changes) will distort the comparison. Lines a company doesn't report are omitted. About these numbers