−£1.48m
vs Dec 2023Active06370537Private limited companyLondon
SENTRYBAY LIMITED
Significant control: Sentrybay Holdings Limited (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
Coming soon · product and service lists
What does Sentrybay Limited sell?
Registered activity: Business and domestic software development (SIC 62012). We’re building product and service lists for UK companies. Get this one when it’s ready.
One email, only about this. If we don’t launch within 60 days we’ll tell you. Privacy
01
Summary
SENTRYBAY LIMITED is an active private limited company (company number 06370537) incorporated on 13 September 2007, registered in London. Its registered activity is business and domestic software development (SIC 62012). Latest small accounts cover the period ending 31 December 2024, showing net assets of −£1.48m and cash of £1.08m, with 31 employees on average. Net assets rose 88% on the prior period (−£12.49m).
Peer position · net assets
By net assets it sits in the bottom quarter of 15,170 comparable companies in London (median £702, upper quartile £27k).
02
Ownership and control
- Sentrybay Holdings Limited
- owns 75–100% of shares
- holds 75–100% of voting rights
- Mr Marcus Andrew Whittington
- has significant influence or control
- Mr David Brian Byford
- has significant influence or control
- Mr David Lynch Waterson
- has significant influence or control
- Mr David Harold Thompson
- has significant influence or control
- Blackspace Security Limited
- owns 75–100% of shares
- holds 75–100% 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
- 13 September 200719 yrs ago
- Next accounts due
- 30 September 202623 days overdue
- Confirmation statement due
- 27 September 2027in 339 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 62012
- Business and domestic software development
- SIC 82990
- Other business support service activities n.e.c.
- Accounts type
- Small
- Size band
- MicroCompanies Act thresholds
05
Financials
£1.08m
+500%vs Dec 2023Not reported
31
−14%vs Dec 2023| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2024 | −£1.48m | £1.08m | £566k | £869k | — | £11.01m | 31 |
| 31 December 2023 | −£12.49m | £180k | £959k | £2.32m | — | −£1.94m | 36 |
| 31 December 2022 | — | — | — | — | — | — | — |
Current ratio1.89Current assets ÷ creditors within one year
Cash per employee£35kCash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets below zeroNet assets £-1,477,199 at 31 December 2024
- Net assets up 10% or more on the prior period+88.2% vs prior period
- Current assets at least 1.5× creditors within one yearCurrent ratio 1.89
- Cash at bank of £50,000 or moreCash £1,077,425
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 13 September 2007
- Accounts past their due dateDue 30 September 2026
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
- Confirmation statement duein 339 days
- Next accounts due23 days overdue
- Accounts period endNet liabilities £1.48m · small accounts
- Accounts period endNet liabilities £12.49m · small accounts
- Accounts period end
- Incorporated
08
Similar companies in London
- INTEGRELLA LTDLondon · inc. Sept 2007
- STYLESCAPE LIMITEDLondon · inc. Sept 2007
- VISUAL EARTH LIMITEDLondon · inc. Sept 2007
- IIT SOFTWARE LIMITEDLondon · inc. Sept 2007
- J SAFFRON CONSULTING LIMITEDLondon · inc. Sept 2007
- SOFTMOOD LTDLondon · inc. Sept 2007
All companies incorporated on 13 September 2007 · in Sept 2007.
09
Reminders for SENTRYBAY LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.