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Company No. 04944506 · Incorporated 27 Oct 2003

Salix River & Wetland Services Limited

Registered name: SALIX RIVER & WETLAND SERVICES LIMITED

Part of RSK Group Limited group

Salix River & Wetland Services Limited made £16.9m revenue and £1m profit in the year to 6 Apr 2025.

Salix River & Wetland Services Limited’s revenue grew 121% to £16.9m in the year to 6 Apr 2025, with £1m profit and 60 employees. The company is classified under “freshwater aquaculture” and is based in Cheshire; we hold 2 years of its filed accounts.

Full P&L filedSection A · Agriculture, forestry and fishingSIC 03220Freshwater aquacultureSIC 43999Other specialised construction activities n.e.c.
Status
Active
Location
Cheshire, North West
Age
22 yrs · since 2003
Type
Private Limited Company

Part of a group. The filing indicates this company sits within a group structure, so its results may depend on intra-group trading and it may be hard to replicate independently. From the filing: “RSK Environment Limited”

Latest accounts · year to 6 Apr 2025

Key figures

Revenue
£16.9m
Growth ▲121.2%
Profit
£1m
Growth ▼5%
Profit margin
6.1%
Gross 27.4%
Employees
60
Change ▲33.3%
Profit / employee
£17.2k
Revenue/employee £282k
Profitable streak
2yrs
Consecutive profitable years in our data

Badges are automated estimates derived from the filed figures — not statements of fact about the company.

2 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Mar 20246 Apr 2025
DisclosureFull P&LFull P&L
Profit & loss
Revenue (turnover)£7.7m£16.9m
Cost of sales£3m£12.3m
Gross profit£4.6m£4.6m
Profit before tax£1.3m£1.4m
Profit after tax£1.1m£1m
Profit (best available)£1.1m£1m
Employees (average)4560
Ratios
Profit margin14.2%6.1%
Gross margin60.7%27.4%
Revenue per employee£170k£282k
Profit per employee£24.1k£17.2k
Growth (year on year)
Revenue growth—▲121.2%
Profit growth—▼5%
Headcount growth—▲33.3%
Balance sheet — indirect signals, not revenue
Cash at bank£61.4k£47.3k
Net assets£2m£2.2m
Fixed assets£2.1m£2.6m
Current assets£4.4m£6.8m
Debtors£555k£718k
SourceFullAccounts · bulk data Oct 2025FullAccounts · bulk data Oct 2025
Derived from the latest filing

How the business works

Profit margin
6.1%
Profit ÷ revenue.
Gross margin
27.4%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£282k
Revenue ÷ average employees.
Profit per employee
£17.2k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
15.5%
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
—
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
4.2%
Money owed by customers. Low = customers pay quickly.
Indirect — not revenue

Balance-sheet signals

Year-on-year changes in filed balance-sheet items. They can hint at momentum (or investment) but are not revenue or profit and must not be read as such.

Net assets
▲11%
Now £2.2m
Cash at bank
▼23%
Now £47.3k
Headcount
▲33%
Now 60
Deferred income
—
Now —
Fixed assets
▲24%
Now £2.6m
Corporate ownership

Group structure

Ownership chain

  1. RSK Group Limitedultimate parent75–100%
  2. RSK Environment Limited75–100%
  3. Salix River & Wetland Services Limitedthis company

Bands show the share of ownership each company holds in the one below it.

Subsidiaries (2)

Sister companies (132)

From the Persons with Significant Control register (corporate controllers only).

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 6 Apr 2025 (profit £1m), from the Companies House accounts bulk data published Oct 2025. Spotted an error? Request a correction.

Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.