Website & contact details
- Website
Sem Limited
- Incorporated
- 17 October 1914 (112 years)
- Industry
- Manufacture of electric motors, generators and transformers (27110)
- Directors
- Thomas Peter Walther
- Owned by
- Accounts type
- Full
- Address
- One Hundred HouseBrunel WayDartfordDA1 5TH
Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 6 February 2027
- Last conf. stmt
- 23 January 2026
Charges
- Total
- 1
- Outstanding
- 0
- Part satisfied
- 0
- Satisfied
- 1
Officers 2 active
Officer details are public data from the Companies House register.
Director · Appointed 1 May 2024
British
Born July 1969 (57)
Walther, Thomas Peter
Director · Appointed 31 May 2007
German
Born August 1963 (63)
Officer history (20 former)
1 May 2024
30 April 2024
Resigned Blyth, Fiona as Director
1 October 2020
1 October 2020
1 October 2017
Appointed Blyth, Fiona as Director
31 May 2007
Appointed Walther, Thomas Peter as Director
31 May 2007
Resigned Miller, Ewan Stephen as Director
22 November 2006
22 November 2006
Resigned Hagenau, Gerhard as Director
16 February 2004
Resigned Hagl, Rainer, Dr as Director
16 February 2004
Appointed Hagenau, Gerhard as Director
10 July 2003
Appointed Hagl, Rainer, Dr as Director
10 July 2003
Resigned Burkhard, Wolf Rainer as Director
10 July 2003
Resigned Schwefel, Ernst Ignaz Benedikt as Director
1 June 2002
1 May 2001
1 May 2001
1 May 2001
11 February 2001
Resigned Witt, Arthur John as Director
25 November 1999
Appointed Schwefel, Ernst Ignaz Benedikt as Director
25 November 1999
Appointed Burkhard, Wolf Rainer as Director
25 November 1999
25 November 1999
25 November 1999
1 April 1999
7 April 1997
20 March 1997
25 January 1996
25 August 1995
1 July 1995
6 January 1995
4 January 1994
22 December 1993
18 December 1992
10 November 1992
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Limited Company
Reg. no. 03871242
Group structure 4 companies
Ownership group derived from the Companies House PSC register
Heidenhain GB Limited Owns 75–100% of shares
Machineworks Limited Owns 75–100% of shares
Sem Limited This company Owns 75–100% of shares
Financials
Figures from 2024 accounts. Newer accounts, made up to 31 December 2025, are filed but not read yet. See them on Companies House
- Net Assets
- £30,406,862
- Cash
- £4,739,624
- Turnover
- £17,809,413
- Profit Before Tax
- £1,401,327
- Debt Ratio
- 5%
- Current Ratio
- 10.9x
- Profit Margin
- 8%
- Return on Equity
- 4%
Trend
Turnover
Balance sheet detail
| 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|
| Fixed Assets | £17,102,667 | £17,572,000 | £18,044,242 | £19,686,953 | £21,840,736 | £23,332,983 |
| Current Assets | £14,995,718 | £19,380,527 | £18,036,378 | £15,341,253 | £11,452,420 | £10,179,684 |
| Debtors | £3,653,433 | £11,107,605 | £8,833,667 | £1,774,049 | £2,881,948 | £2,920,893 |
| Cash | £4,739,624 | £2,037,001 | £4,806,235 | £10,687,197 | £6,200,337 | £3,652,193 |
| Creditors (< 1 year) | £1,378,681 | £2,262,434 | £2,039,949 | £1,578,987 | £758,466 | £1,019,459 |
| Net Current Assets | £13,617,037 | £17,118,093 | £15,996,429 | £13,762,266 | £10,693,954 | £9,160,225 |
| Net Assets | £30,406,862 | £34,291,715 | ||||
| Shareholder Funds | £30,406,862 | £34,291,715 | £34,040,671 | £33,449,219 | £32,534,690 | £32,493,208 |
| Turnover | £17,809,413 | £19,528,350 | £16,428,667 | £12,957,166 | £18,426,514 | |
| Cost of Sales | £16,016,065 | £17,617,865 | £13,191,200 | £11,044,642 | £15,227,371 | |
| Gross Profit | £3,512,285 | £3,237,467 | £1,912,524 | £3,199,143 | ||
| Admin Expenses | £2,992,925 | £2,858,289 | £2,685,937 | £2,397,812 | £2,794,824 | £3,183,173 |
| Staff Costs | £5,665,558 | £5,645,363 | £5,622,172 | £4,802,992 | £5,207,938 | £6,225,513 |
| Operating Profit | £1,089,455 | £715,893 | £41,481 | £87,806 | ||
| Profit Before Tax | £1,401,327 | £899,422 | £591,452 | £914,529 | £41,481 | £53,292 |
| Tax | £286,180 | £648,378 | £0 | £0 | £0 | |
| Profit for Period | £1,115,147 | £251,044 | £591,452 | £914,529 | £41,481 | £53,292 |
What Sem say about themselves
“SEM is a world class manufacturer of AC permanent servomotors and asynchronous spindle motors focused on the machine tool industry.”
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 30 January 2026 | Confirmation statement with updates | 23 January 2026 | ||
| 8 September 2025 | Full accounts | 31 December 2024 | 27 | |
| 3 February 2025 | Confirmation statement with updates | 23 January 2025 | ||
| 17 December 2024 | Insolvency filing | |||
| 17 December 2024 | Share capital filing |
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