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Company No. 01607965 · Incorporated 14 Jan 1982

Crosmill Limited

Registered name: CROSMILL LIMITED

Part of Mariner Topco Limited group

Crosmill Limited made £384k profit in the year to 31 Dec 2024 (revenue not disclosed).

Crosmill Limited reported £384k profit in the year to 31 Dec 2024, down 10% on the year before; its revenue was not disclosed. It had 4 employees. The company is classified under “research and experimental development on biotechnology” and is based in Ross-on-Wye; we hold 3 years of its filed accounts.

Profit onlySection M · Professional, scientific and technical activitiesSIC 72110Research and experimental development on biotechnology
Status
Active
Location
Ross-on-Wye, West Midlands
Age
44 yrs · since 1982
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: “Crosmill Holdings Limited”

Latest accounts · year to 31 Dec 2024

Key figures

Small team
Revenue
—
Not disclosed in filing
Profit
£384k
Growth ▼9.8%
Profit margin
—
 
Employees
4
Change —
Profit / employee
£96k
 
Profitable streak
2yrs
Consecutive profitable years in our data

This company published its profit but not its turnover, so revenue and margins are not disclosed. We never estimate them.

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

3 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Dec 202231 Dec 202331 Dec 2024
DisclosureNo P&LProfit onlyProfit only
Profit & loss
Revenue (turnover)———
Profit after tax—£426k£384k
Profit (best available)—£426k£384k
Employees (average)404
Ratios
Profit margin———
Profit per employee——£96k
Growth (year on year)
Profit growth——▼9.8%
Headcount growth—▼100%—
Balance sheet — indirect signals, not revenue
Cash at bank£657k£1m£574k
Net assets£348k£675k£72.7k
Fixed assets£7.5k£4k£0
Current assets£2.1m£2.2m£1.9m
Debtors£1.1m£928k£971k
Deferred income—£0£179k
SourceFilletedAccounts · bulk data Jul 2024FilletedAccounts · bulk data Jul 2024FullAccounts · bulk data Dec 2025
Derived from the latest filing

How the business works

Profit margin
—
Profit ÷ revenue.
Gross margin
—
Gross profit ÷ revenue. High for software and services.
Revenue per employee
—
Revenue ÷ average employees.
Profit per employee
£96k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
—
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
—
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
—
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
▼89%
Now £72.7k
Cash at bank
▼45%
Now £574k
Headcount
—
Now 4
Deferred income
—
Now £179k
Fixed assets
▼100%
Now £0

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

  1. Mariner Topco Limitedultimate parent75–100%
  2. Mariner Midco 1 Limited75–100%
  3. Mariner Midco 2 Limited75–100%
  4. Mariner Bidco Limited75–100%
  5. HSL Compliance Group Limited75–100%
  6. HSL Compliance Holdings Limited75–100%
  7. Crosmill Holdings Ltd75–100%
  8. Crosmill Limitedthis company

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

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

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Sources

Latest figures from FullAccounts for the year to 31 Dec 2024 (profit £384k), from the Companies House accounts bulk data published Dec 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.