£2.32m
+7%vs Mar 2024Active01006650Private limited companyRoyston
JOHN COBB & SONS LIMITED
Significant control: John Francis Cobb (25–50%), James Edward Cobb (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
Watch this company
Get an email when Companies House records a change for John Cobb & Sons Limited: status, filings, accounts, officers or owners. Free.
Not live yet: alerts start by 15 December 2026. We store your email and this company number only, for these alerts. If alerts don’t launch, we tell you and delete your address. Privacy
Coming soon · product and service lists
What does John Cobb & Sons Limited sell?
Registered activity: Construction of other civil engineering projects n.e.c. (SIC 42990). 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
JOHN COBB & SONS LIMITED is an active private limited company (company number 01006650) incorporated on 1 April 1971, registered in Royston. Its registered activity is construction of other civil engineering projects n.e.c. (SIC 42990). Latest small accounts cover the period ending 31 March 2025, showing net assets of £2.32m and cash of £1.85m, with 12 employees on average. Net assets rose 7% on the prior period (£2.16m).
Peer position · net assets
By net assets it sits in the top quarter of 124 comparable companies in Hertfordshire (median £11k, upper quartile £141k).
02
Ownership and control
- Mr John Francis Cobb
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr James Edward Cobb
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr John Frederick Cobb
- owns 75–100% of shares
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
- 1 April 197155 yrs ago
- Next accounts due
- 31 December 2026in 66 days
- Confirmation statement due
- 15 April 2027in 171 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 42990
- Construction of other civil engineering projects n.e.c.
- Accounts type
- Total Exemption Full
- Size band
- SmallCompanies Act thresholds
05
Financials
£1.85m
+21%vs Mar 2024Not reported
12
−14%vs Mar 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2025 | £2.32m | £1.85m | £103k | — | — | — | 12 |
| 31 March 2024 | £2.16m | £1.53m | £314k | — | — | — | 14 |
Cash per employee£154kCash ÷ 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 above zeroNet assets £2,316,903 at 31 March 2025
- Cash at bank of £50,000 or moreCash £1,849,122
- Incorporated five or more years agoIncorporated 1 April 1971
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 171 days
- Next accounts duein 66 days
- Accounts period endNet assets £2.32m · small accounts
- Accounts period endNet assets £2.16m · small accounts
- Incorporated
08
Similar companies in Hertfordshire
- HARPENDEN ESTATES LIMITEDHarpenden · inc. Mar 1973
- CARLTON ROAD DEVELOPMENTS (HARPENDEN) LIMITEDHarpenden · inc. Sept 1966
- N.A.B. PRECISION TOOLING LIMITEDHitchin · inc. May 1965
- HAYDENLANG LIMITEDStevenage · inc. May 1978
- HALSEY (BUILDERS) LIMITEDSt Albans · inc. May 1963
- M GROUP TRANSPORT (RAIL & AVIATION) LIMITEDStevenage · inc. Sept 1979
All companies incorporated on 1 April 1971 · in Apr 1971.
09
Reminders for JOHN COBB & SONS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.