£21k
+148%vs Dec 2024ActiveSC583039Private limited companyHaddington
FIRST PRINCIPLE DESIGN LTD
Significant control: Ross Robert Cowie (25–50%), Alexandra Lorna Suzanna Cowie (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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Registered activity: Other engineering activities (SIC 71129). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
FIRST PRINCIPLE DESIGN LTD is an active private limited company (company number SC583039) incorporated on 4 December 2017, registered in Haddington. Its registered activity is other engineering activities (SIC 71129). Latest micro accounts cover the period ending 31 December 2025, showing net assets of £21k, with 2 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 148% on the prior period (£8,610).
Peer position · net assets
By net assets it sits in the upper half of 178 comparable companies in Edinburgh (median £7,540, upper quartile £41k).
02
Ownership and control
- Ross Robert Cowie
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mrs Alexandra Lorna Suzanna Cowie
- owns 25–50% of shares
- holds 25–50% of voting rights
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 4 December 20178 yrs ago
- Next accounts due
- 30 September 2027in 342 days
- Confirmation statement due
- 18 December 2026in 56 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 71129
- Other engineering activities
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
2
No changevs Dec 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | £21k | — | — | — | — | — | 2 |
| 31 December 2024 | £8,610 | — | — | — | — | — | 2 |
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
06
Filing and accounts signals
- Net assets above zeroNet assets £21,357 at 31 December 2025
- Net assets up 10% or more on the prior period+148.0% vs prior period
- Incorporated five or more years agoIncorporated 4 December 2017
Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.
07
Timeline
- Next accounts duein 342 days
- Confirmation statement duein 56 days
- Accounts period endNet assets £21k · micro accounts
- Accounts period endNet assets £8,610 · micro accounts
- Incorporated
08
Similar companies in Edinburgh
- SONSAT LTDDalkeith · inc. Nov 2017
- MARATEC LTDBathgate · inc. Jan 2018
- ACERCONSULT LTDEdinburgh · inc. Feb 2018
- TRADE IN SPACE LIMITEDEdinburgh · inc. Sept 2017
- THERMAL INSULATION ENGINEERING RESOURCES LIMITEDWest Calder · inc. Feb 2018
- MACLEOD SUBSEA CONSULTANTS LIMITEDEdinburgh · inc. Sept 2017
All companies incorporated on 4 December 2017 · in Dec 2017.
09
Reminders for FIRST PRINCIPLE DESIGN LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.