Annual accounts
Total Exemption Full accounts
31/03/2027Filing deadline
Made up to 30/06/2025Due 31/03/2027
- Next accounts made up to
- 30/06/2026
- Last accounts made up to
- 30/06/2025
MAINSTREAM WATER SERVICES LTD
ActiveRegistry details
Reference data exactly as held at Companies House.
Copy registry details
- Registered office
- 5a Marsh Mill Village, Fleetwood Road North, Thornton-Cleveleys FY5 4JZ
- Classification (SIC)
- Water collection treatment and supply (36.00 - SIC 2007)
- Accounts type
- Total Exemption Full
Company activity
The 4 most recent documents filed at Companies House.
Pre-Score for UK companies is coming soon
- 27/07/2026View PDF (3 pages)
Confirmation statement made on 2026-07-17 with no updates
- 27/02/2026View PDF (8 pages)
Total exemption full accounts made up to 2025-06-30
- 21/07/2025View PDF (2 pages)
Change of details for Mr Derek John Cassidy as a person with significant control on 2025-07-17
- 21/07/2025View PDF (4 pages)
Confirmation statement made on 2025-07-17 with updates
Coming soon
What Pre-Score will tell you
- Whether the filed accounts are strengthening or weakening year on year.
- Whether this company files on time, and how often its record changes.
- How its officers and controlling parties connect to other UK companies.
Accounts and confirmation statement
The two filings Companies House requires every year, and where each one stands against its deadline today.
On schedule
Confirmation statement
Confirms the registry record is up to date
31/07/2027Filing deadline
Last statement 17/07/2026Due 31/07/2027
- Next statement date
- 17/07/2027
- Last statement dated
- 17/07/2026
Financial performance
The latest figures MAINSTREAM WATER SERVICES LTD filed. Okredo holds filed accounts data for 2021–2025; the year-by-year record is on the financials page.
Net Assets
£60.62K2025
34.34K%vs 20242024: £176.00
Total Assets
£222.20K2025
101.12%vs 20242024: £110.48K
Cash in Bank
£26.78K2025
83.54%vs 20242024: £14.59K
Total Liabilities
£158.43K2025
45.68%vs 20242024: £108.75K
Employees
62025
0vs 20242024: 6
Of the 4 measures with an earlier filing to compare against, 4 rose. Total assets moved furthest, up 101.12% on 2024. See the full financial analysis for MAINSTREAM WATER SERVICES LTD.
The full financial record
Four ways through MAINSTREAM WATER SERVICES LTD's filed accounts — the year-by-year numbers, the compound rates and the ratios behind them.
Net Assets · +1043% a year (CAGR)Three-year trend, 2023–2025Every measure end to end across 2023, 2024 and 2025, with the compound rate behind each one.See what moved5 chartsCharts by indicator5 filed indicators plotted year by year, 2021–2025.Plot the figuresNothing estimatedRatios from the filed figures4 ratios computed from this company's own reported amounts, each shown against the year it was derived from.Check the ratios5 × 5 yearsEvery figure by yearAll 5 measures Okredo tracks across 5 reported years, exactly as filed.Open the table
Employees
Headcount as reported to Companies House for 2021–2025.
| Year | Employees | Change |
|---|---|---|
| 2025 | 6 | 0 |
| 2024 | 6 | -4 |
| 2023 | 10 | 0 |
| 2022 | 10 | +1 |
| 2021 | 9 | – |
Reported employee count decreased from 9 in 2021 to 6 in 2025. See how headcount moved alongside the reported financials.
Credit report
It is a professional assessment of the company 's performance, revealing company's potential and risks, showing it's past experiences and revealing future prospects.
- Company potential
- Risk indicators
- Past performance
- Future prospects
Officers
4Directors, secretaries and other appointed officers, with the period each has served.
| Person | Role | Period | Connected companies |
|---|---|---|---|
| Director | 04/06/2018–28/02/2023 | 5 | |
| Director | 06/11/2018–Present | 3 | |
| Director | 06/11/2018–28/02/2023 | 1 | |
| Director | 06/11/2018–Present | 0 |
Persons with significant control
3Individuals or entities with significant control over the company, as declared to Companies House.
| Person | Period | Connected companies |
|---|---|---|
| 04/06/2018–Present | 5 | |
| 04/06/2018–28/02/2023 | 5 | |
| 01/04/2020–Present | 3 |
Filing history and recent activity
Every document on the Companies House record, newest first.
- Filings on record
- 10
- Since 31/05/2023
- Last 12 months
- 2
- -1 vs the year before
- Most recent filing
- 27/07/2026
- 2 months ago
What changed in the last year
- Confirmation statementLatest 27/07/2026
- Accounts filedLatest 27/02/2026
Filing timeline
- 27/07/2026View PDF (3 pages)
Confirmation statement made on 2026-07-17 with no updates
- 27/02/2026View PDF (8 pages)
Total exemption full accounts made up to 2025-06-30
- 21/07/2025View PDF (2 pages)
Change of details for Mr Derek John Cassidy as a person with significant control on 2025-07-17
- 21/07/2025View PDF (4 pages)
Confirmation statement made on 2025-07-17 with updates
- 30/06/2025View PDF (7 pages)
Total exemption full accounts made up to 2024-06-30
- 17/07/2024View PDF (4 pages)
Confirmation statement made on 2024-07-17 with updates
- 29/05/2024View PDF (4 pages)
Confirmation statement made on 2024-05-28 with updates
- 16/05/2024View PDF (9 pages)
Total exemption full accounts made up to 2023-06-30
- 28/06/2023View PDF (9 pages)
Total exemption full accounts made up to 2022-06-30
- 31/05/2023View PDF (3 pages)
Confirmation statement made on 2023-05-28 with no updates
See when the next accounts and confirmation statement are due
Similar companies
15 UK companies are similar to MAINSTREAM WATER SERVICES LTD, sharing the same company status (Active), the same industry sector and activity group (Water collection treatment and supply) and a comparable number of employees. The 5 closest matches are shown below to help you compare competitors and industry peers.
EWT WATER LIMITED
ActiveFourth Floor Abbots House, Abbey Street, Reading, Berkshire RG1 3BD
- Activity
- Water collection treatment and supply
- Company no.
- 07944119
- Incorporated
- 09/02/2012
- Employees
- 7
KSK MAINLAYING LIMITED
Active17 Rafeman Close, Norwich, Norfolk NR5 9EZ
- Activity
- Water collection treatment and supply
- Company no.
- 07568467
- Incorporated
- 17/03/2011
- Employees
- 5
A. D. VEALE WATER TREATMENT LIMITED
ActiveThe Gables Eye Road, Brome, Eye, Suffolk IP23 8AL
- Activity
- Water collection treatment and supply
- Company no.
- 04626421
- Incorporated
- 31/12/2002
- Employees
- 6
ALLOWENSHAY WATER COMPANY LIMITED
Active1 Cornhill, Ilminster, Somerset TA19 0AD
- Activity
- Water collection treatment and supply
- Company no.
- 09040154
- Incorporated
- 14/05/2014
- Employees
- 5
CHAMBERLAINS AQUA AND ENERGY SYSTEMS LIMITED
ActiveMicrolink House Brickfield Lane, Chandler's Ford, Eastleigh SO53 4DP
- Activity
- Water collection treatment and supply
- Company no.
- 11098150
- Incorporated
- 06/12/2017
- Employees
- 5
About MAINSTREAM WATER SERVICES LTD
A short description of the company, written from its Companies House record.
MAINSTREAM WATER SERVICES LTD is a private limited company registered in the United Kingdom, based in 5a Marsh Mill Village, Fleetwood Road North, Thornton-Cleveleys FY5 4JZ. Companies House classifies its business as Water collection treatment and supply. It has been on the register for 8 years 3 months.
The register currently records it as active. Its 2025 accounts report net assets of £60.62K and 6 employees.
MAINSTREAM WATER SERVICES LTD: frequently asked questions
Answered from this company's own registry record and filed figures.
Companies House records MAINSTREAM WATER SERVICES LTD under one registered business activity: Water collection treatment and supply (36.00 - SIC 2007).
MAINSTREAM WATER SERVICES LTD is recorded as active on the Companies House register, and has been on it since 04/06/2018.
The most recent accounts Okredo holds cover 2025 and report net assets of £60.62K, total assets of £222.20K, cash in bank of £26.78K and total liabilities of £158.43K.
The most recent document on the record is dated 27/07/2026: Confirmation statement made on 2026-07-17 with no updates, 2 months ago.
On the current registry record, accounts are due by 31/03/2027 and the next confirmation statement is due by 31/07/2027.
Companies House lists 4 officers (2 currently in post) and 3 people with significant control (2 current).