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Company No. 13765064 · Incorporated 25 Nov 2021

RSK Hi-Line Limited

Registered name: RSK HI-LINE LIMITED

Part of Ares Management Corporation group

RSK Hi-Line Limited made £15.1m revenue and £231k profit in the year to 31 Mar 2025.

RSK Hi-Line Limited’s revenue grew 4% to £15.1m in the year to 31 Mar 2025, with £231k profit and 232 employees. The company is classified under “remediation activities and other waste management services” and is based in Frodsham; we hold 2 years of its filed accounts.

Full P&L filedSection E · Water supply, sewerage and waste managementSIC 39000Remediation activities and other waste management servicesSIC 42990Construction of other civil engineering projects n.e.c.SIC 71122Engineering related scientific and technical consulting activitiesSIC 74901Environmental consulting activities
Status
Active
Location
Frodsham, North West
Age
4 yrs · since 2021
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 31 Mar 2025

Key figures

Young and profitableOperating leverageBoring industry
Revenue
£15.1m
Growth ▲3.8%
Profit
£231k
Growth ▲733.5%
Profit margin
1.5%
Gross 42.8%
Employees
232
Change ▲1.8%
Profit / employee
£995
Revenue/employee £65.2k
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 202431 Mar 2025
DisclosureFull P&LFull P&L
Profit & loss
Revenue (turnover)£14.6m£15.1m
Cost of sales£8.7m£8.7m
Gross profit£5.9m£6.5m
Profit before tax£91.7k£373k
Profit after tax£27.7k£231k
Profit (best available)£27.7k£231k
Staff costs£8.2m£8.7m
Employees (average)228232
Ratios
Profit margin0.2%1.5%
Gross margin40.2%42.8%
Revenue per employee£64k£65.2k
Profit per employee£122£995
Growth (year on year)
Revenue growth—▲3.8%
Profit growth—▲733.5%
Headcount growth—▲1.8%
Balance sheet — indirect signals, not revenue
Cash at bank£366k£449k
Net assets−£338k−£107k
Fixed assets£3.1m£2.9m
Current assets£2.7m£2.5m
Debtors£1.6m£1.1m
SourceFullAccounts · bulk data Oct 2025FullAccounts · bulk data Oct 2025
Derived from the latest filing

How the business works

Profit margin
1.5%
Profit ÷ revenue.
Gross margin
42.8%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£65.2k
Revenue ÷ average employees.
Profit per employee
£995
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
19.1%
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
—
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
7.2%
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
—
Now −£107k
Cash at bank
▲23%
Now £449k
Headcount
▲2%
Now 232
Deferred income
—
Now —
Fixed assets
▼7%
Now £2.9m
Corporate ownership

Group structure

Ownership chain

  1. Ares Management Corporation (registered outside the UK register)ultimate parent75–100%
  2. Ares Management Limited75–100%
  3. RSK Environment Limited75–100%
  4. RSK Hi-Line Limitedthis company

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

Sister companies (132)

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

Same industry, similar size

Similar profitable businesses

Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £231k), 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.