Skip to content
CompanySight
Company No. 00707628 · Incorporated 8 Nov 1961

John Willment Marine Limited

Registered name: JOHN WILLMENT MARINE LIMITED

Part of Mills & Reeve LLP group

John Willment Marine Limited made £3.6m revenue and £1.5m profit in the year to 28 Sep 2025.

John Willment Marine Limited’s revenue grew 1% to £3.6m in the year to 28 Sep 2025, with £1.5m profit and 14 employees. The company is classified under “activities of head offices” and is based in Southampton; we hold 4 years of its filed accounts.

Full P&L filedSIC 70100Activities of head offices
Status
Active
Location
Southampton
Age
64 yrs · since 1961
Type
Private Limited Company
Latest accounts · year to 28 Sep 2025

Key figures

Revenue
£3.6m
Growth ▲1%
Profit
£1.5m
Growth ▼8.5%
Profit margin
41.8%
Gross 57.6%
Employees
14
Change 0%
Profit / employee
£107k
Revenue/employee £257k
Profitable streak
4yrs
Consecutive profitable years in our data
4 filed years

Financial history

Multi-year financials, oldest to newest
Year to29 Sep 202328 Sep 202429 Sep 202428 Sep 2025
DisclosureFull P&LFull P&LFull P&LFull P&L
Profit & loss
Revenue (turnover)£3.3m£3.6m£3.6m£3.6m
Cost of sales−£1.6m£1.5m£1.5m£1.5m
Gross profit£1.7m£2.1m£2.1m£2.1m
Profit before tax£1.1m£1.7m£1.7m£1.5m
Profit after tax£996k£1.6m£1.6m£1.5m
Profit (best available)£996k£1.6m£1.6m£1.5m
Employees (average)15151414
Ratios
Profit margin30.6%46.1%46.1%41.8%
Gross margin51.5%59%59%57.6%
Revenue per employee£217k£237k£254k£257k
Profit per employee£66.4k£109k£117k£107k
Growth (year on year)
Revenue growth—▲9.4%—▲1%
Profit growth—▲64.6%—▼8.5%
Headcount growth—0%—0%
Balance sheet — indirect signals, not revenue
Net assets————
SourceAccounts · bulk data Jul 2025Accounts · bulk data Jul 2026Accounts · bulk data Jul 2025Accounts · bulk data Jul 2026
Derived from the latest filing

How the business works

Profit margin
41.8%
Profit ÷ revenue.
Gross margin
57.6%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£257k
Revenue ÷ average employees.
Profit per employee
£107k
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
—
Now —
Cash at bank
—
Now —
Headcount
0%
Now 14
Deferred income
—
Now —
Fixed assets
—
Now —
Corporate ownership

Group structure

Ownership chain

  1. Mills & Reeve LLPultimate parent75–100%
  2. Mills & Reeve Trust Corporation Limited75–100%
  3. Gower Place Investments Limited75–100%
  4. Premier Marinas Holdings Limited75–100%
  5. Premier Marinas Limited75–100%
  6. John Willment Marine Limitedthis company

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

Sister companies (24)

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

Sources

Companies House profile Filing history & original accounts

Latest figures from accounts for the year to 28 Sep 2025 (profit £1.5m), from the Companies House accounts bulk data published Jul 2026. Spotted an error? Request a correction.

Updated from Companies House on 23 Oct 2026

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