JOHN SISK & SON LIMITED
Company number 01973332 · Monitor this company
Executive summary
John Sisk & Son Limited presents a picture of robust structural health, underpinned by nearly 40 years of continuous operation, substantial £11.7m share capital, and the strong institutional backing of its parent company. While observable compliance and structural vitals are excellent, a complete financial health assessment requires a deeper examination of the company's full filed accounts to verify liquidity and profitability. Overall, the patient exhibits zero symptoms of distress and possesses the capital reserves necessary to thrive in the demanding construction sector.
Overview
- Company type
- Private Limited Company
- Incorporated
- 1985-12-20
- Registered office
- 1 Curo Park, Frogmore, St. Albans, Hertfordshire, AL2 2DD
- Postcode
- AL2 2DD
- Capital
- 11,700,000 GBP
- Accounts category
- Full
- Charges
- 2 outstanding
Accounts
- Last made up to
- 2025-12-31
- Next due by
- 2027-09-30
- Financial year end
- 31 December
Confirmation statement
- Last statement dated
- 2026-06-08
- Next due by
- 2027-06-22
Nature of business (SIC)
- 41201 Construction of commercial buildings
- 41202 Construction of domestic buildings
- 42110 Construction of roads and motorways
Officers 6 current · 24 resigned
Group structure 1 subsidiary
Controlled by SISK CONSOLIDATED INVESTMENTS LIMITED — since 2016-04-06
From persons-with-significant-control filings on the public register.
Public contracts won 6
£2,023,066,349 total awarded value where published.
Showing the 5 most recent of 6.
Contains public sector information licensed under the Open Government Licence v3.0 (Contracts Finder).
Modern slavery statement
Registered a modern slavery statement for 2021 (period to 2020-12-31).
Read the statement summary on the government modern slavery statement registry. Contains public sector information licensed under the Open Government Licence v3.0.
Data protection registration
Registered with the ICO as a data protection fee payer — Z2615862 (Tier 3), registered since 2011.
Information Commissioner's Office register of fee payers, licensed under the Open Government Licence.
Gender pay gap
35.2%
Women's median hourly pay below men's, 2025/26 · in the bottom 10% for parity
Previous company names
| Name | Date changed |
|---|---|
| JOINRIGHT LIMITED | 1986-01-31 |
Previous registered addresses 2
| Address | Changed on |
|---|---|
| PARK HOUSE, FROGMORE, ST. ALBANS, HERTS AL2 2NH | 2003-07-29 |
| 20 BLACK FRIARS LANE, LONDON, EC4V 6EB | 1991-05-17 |
Among its peers
Among the oldest 25%
of 155 similar companies in AL, trading since 1985
The class of 1985
49%
of the 15,386 companies incorporated in 1985 are still active today; 42% have since been dissolved.
A fact about the year, not a forecast for this company.
Property in England & Wales 5 titles
- Freehold
- 2
- Leasehold
- 3
- Most recent registration
- 2019-10-16
- Where
- City Of Bristol (2), Warrington (1), West Midlands (1)
| Title number | County | Tenure | Registered | Price paid |
|---|---|---|---|---|
| CH688283 | Warrington | Leasehold | 2019-10-16 | — |
| MM102097 | West Midlands | Leasehold | 2018-03-06 | — |
| HD527157 | Hertfordshire | Leasehold | 2013-07-19 | — |
| BL76441 | City Of Bristol | Freehold | 2005-08-22 | — |
| BL76442 | City Of Bristol | Freehold | 2004-01-30 | — |
For addresses and the authoritative register entry, use HM Land Registry's official search (£3 per title).
Information produced by HM Land Registry. © Crown copyright 2026. Dataset as at 2026-08.
Businesses that transport or deal in waste must register with the Environment Agency. You can check this company on the official register of waste carriers, brokers and dealers.