- Companies
- Specialist contractors
- Romford
- Sixsigma Ltd
Sixsigma Ltd
- Company number
- 17055992
- Incorporated
- 26 Feb 2026
- Registered office
- Flat 16 York House, 50 Western Road, Romford, RM1 3LP
- Nature of business
- Other specialised construction activities n.e.c.; Management consultancy activities other than financial management; Engineering related scientific and technical consulting activities
Sixsigma Ltd is a newly incorporated private limited company registered in Romford, company number 17055992, one of 279 specialist construction companies in Romford. Its next accounts are due at Companies House on 26 November 2027, and its first CT600 is due at HMRC on 25 February 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns Sixsigma Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| M*** M*** | Director | Feb 2026 |
Person with significant control
Where Sixsigma Ltd is registered
The registered office is in Romford (RM1), in the Havering local authority area, London. Show RM1 3LP on a map.
Other trade companies in RM1
- Steam & Cool Commercial Engineering LimitedMachinery repair and installation
- Saix LtdSpecialist contractors
- Mega Ark LimitedBuilders
- Damir Auto LtdMotor traders
- Vascobuild LimitedBuilders
- Dream Living Spaces LtdBuilders
- Douglas Windows and Doors LimitedGlaziers
- Sergei SSM Builders LtdFinishing trades
What happens if Sixsigma 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 26 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 Nov 2027 to 26 Dec 2027 | £150 |
| 1 to 3 months late | 27 Dec 2027 to 26 Feb 2028 | £375 |
| 3 to 6 months late | 27 Feb 2028 to 26 May 2028 | £750 |
| More than 6 months late | From 27 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 17055992
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 2026
- Registered office
- Flat 16 York House, 50 Western Road, Romford, RM1 3LP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Management consultancy activities other than financial management (SIC 70229)
Engineering related scientific and technical consulting activities (SIC 71122) - Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Romford
Other active specialist construction companies registered in Romford.
- Sloboda Drylining Ltd2025
- So&I Ltd2019
- Starline Drylining Ltd2023
- Sterling Facades & Brickwork Ltd2013
- Stoneworks & Maintenance Ltd2013
- Structural Membranes Specialists Limited1990
- Stunder Ltd2011
- SV Proch Ltd2024
All specialist construction companies in Romford · All trades in Romford · Specialist contractors across the UK
Frequently asked questions
When are Sixsigma Ltd's accounts due?
Sixsigma Ltd's next accounts are due at Companies House by 26 November 2027 (in 410 days), covering the period to 28 February 2027.
When is Sixsigma Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 25 February 2027, due by 25 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sixsigma Ltd still trading?
Sixsigma 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 Sixsigma Ltd do?
Sixsigma Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Management consultancy activities other than financial management (SIC 70229); Engineering related scientific and technical consulting activities (SIC 71122).
How old is Sixsigma Ltd?
Sixsigma Ltd was incorporated on 26 February 2026, less than a year ago.
Who runs Sixsigma Ltd?
Sixsigma Ltd has 1 active director, the longest-serving appointed in Feb 2026. Their names and service addresses are on the Companies House register.
Who owns Sixsigma Ltd?
One person or company has significant control of Sixsigma Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Sixsigma 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 Sixsigma 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.