- Companies
- Machinery repair and installation
- Dereham
- Sigma Services Aircraft Ltd
Sigma Services Aircraft Ltd
- Company number
- 04774973
- Incorporated
- 22 May 200323 years trading
- Registered office
- 30-32 Norwich Street, Dereham, Norfolk, NR19 1BX
- Nature of business
- Repair and maintenance of aircraft and spacecraft
Sigma Services Aircraft Ltd is a 23-year-old private limited company registered in Dereham, company number 04774973, one of 35 machinery repair and installation companies in Dereham. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Sigma Services Aircraft LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £2,199 (-37.5%) on the year before, to £3,662.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £4,735 against £6,727 owed within a year: 0.7 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £3,662 | £4,735 | £6,727 | 2 | |
| 31 May 2024 | £5,861 | £4,475 | £3,809 | 1 | |
| 31 May 2023 | £17K | £11K | £2,876 | 2 | |
| 31 May 2022 | £17K | £14K | £6,632 | 2 | |
| 31 May 2021 | £24K | £18K | £7,804 | 2 | |
| 31 May 2020 | £32K | £35K | £17K | 2 | |
| 31 May 2019 | -£25K | -£33K | £23K | ||
| 31 May 2018 | -£12K | -£24K | £25K | ||
| 31 May 2017 | £1,180 | -£8,129 | £17K | ||
| 31 May 2016 | -£7,676 | £3,404 | £13K | £25K |
Where Sigma Services Aircraft Ltd is registered
The registered office is in Dereham (NR19), in the Breckland local authority area, East of England. Show NR19 1BX on a map.
Other trade companies in NR19
- Bure Power LtdCivil engineering
- A&R Drylining LimitedCivil engineering
- Mac Carpentry & Bespoke Joinery LtdFinishing trades
- Randalls Gardening & Landscaping LimitedLandscapers and gardeners
- Randall Brothers LimitedInstallers
- Randalls Grounds Maintenance LimitedLandscapers and gardeners
- M & M Commercials LtdMechanics and garages
- Gutter Pro LimitedCleaning companies
Also registered at this address
2 other companies use the same registered office as Sigma Services Aircraft Ltd.
- Aca Services (Ea) LtdMachinery repair and installation
- S.A.M. Windows and Conservatories LimitedJoiners and carpenters
What happens if Sigma Services Aircraft Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 04774973
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 May 2003 (23 years ago)
- Registered office
- 30-32 Norwich Street, Dereham, Norfolk, NR19 1BX
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 22 May 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Dereham
Other active machinery repair and installation companies registered in Dereham.
- Specialist Catering Services Limited2026
- Tank Replacement Services Limited1995
- Tru-Vent Limited2014
- UK Pallet Racking Suppliers & Services Ltd2026
- Yorath Services Ltd2019
- A Plus Recovery and Repairs Ltd2017
- Aca Services (Ea) Ltd2011
- Acare Services Limited2002
All machinery repair and installation companies in Dereham · All trades in Dereham · Machinery repair and installation across the UK
Frequently asked questions
When are Sigma Services Aircraft Ltd's accounts due?
Sigma Services Aircraft Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Sigma Services Aircraft Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Sigma Services Aircraft Ltd still trading?
Sigma Services Aircraft Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Sigma Services Aircraft Ltd do?
Sigma Services Aircraft Ltd is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is Sigma Services Aircraft Ltd?
Sigma Services Aircraft Ltd was incorporated on 22 May 2003, 23 years ago.
What is the penalty if Sigma Services Aircraft Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Sigma Services Aircraft Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.