How much does Martek Marine Limited make?

Martek Marine Limited reported revenue of £10.4m and £1.1m profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Martek Marine Limited have?

Martek Marine Limited reported an average of 48 employees in the year to 31 Dec 2025.

Is Martek Marine Limited profitable?

Yes — Martek Marine Limited reported a profit of £1.1m in the year to 31 Dec 2025.

Company No. 03930003 · Incorporated 16 Feb 2000

Martek Marine Limited

Registered name: MARTEK MARINE LIMITED

Part of James Fisher and Sons Public Limited Company group

Martek Marine Limited made £10.4m revenue and £1.1m profit in the year to 31 Dec 2025. read from filing text

Martek Marine Limited’s revenue fell 3% to £10.4m in the year to 31 Dec 2025, with £1.1m profit and 48 employees. The company is classified under “manufacture of electronic measuring, testing etc. equipment, not for industrial process control” and is based in Rotherham; we hold 3 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 26511Manufacture of electronic measuring, testing etc. equipment, not for industrial process control

Status: Active
Location: Rotherham, Yorkshire and The Humber
Age: 26 yrs · since 2000
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: “The immediate parent company is Martek Holdings Limited, a company incorporated in England and Wales. The registered office is 6a Adwick Park, Manvers, Rotherham, United Kingdom, S63 5AB.”

Latest accounts · year to 31 Dec 2025

Key figures

Capital-light

Revenue

£10.4m

Growth ▼3.3%

Profit

£1.1m

Growth ▲321%

Profit margin

10.9%

Gross 47.2%

Employees

Change ▲9.1%

Profit / employee

£23.7k

Revenue/employee £217k

Profitable streak

3yrs

Consecutive profitable years in our data

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 to	31 Dec 2023	31 Dec 2024	31 Dec 2025
Disclosure	Full P&Lread from filing text	Full P&Lread from filing text	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	£11.6m	£10.8m	£10.4m
Cost of sales	£6.5m	£6.4m	£5.5m
Gross profit	£5.1m	£4.4m	£4.9m
Operating profit	£1.3m	£268k	£1.2m
Profit before tax	£1.4m	£273k	£1.2m
Profit after tax	£1m	£270k	£1.1m
Profit (best available)	£1m	£270k	£1.1m
Staff costs	£2.5m	£2.1m	£2m
Employees (average)	49	44	48
Ratios
Profit margin	8.9%	2.5%	10.9%
Gross margin	43.7%	40.7%	47.2%
Revenue per employee	£237k	£244k	£217k
Profit per employee	£21.2k	£6.1k	£23.7k
Growth (year on year)
Revenue growth	—	▼7.3%	▼3.3%
Profit growth	—	▼74%	▲321%
Headcount growth	—	▼10.2%	▲9.1%
Balance sheet — indirect signals, not revenue
Cash at bank	£372k	£494k	£403k
Net assets	£2.4m	£2.6m	£3.6m
Fixed assets	£62k	£34.3k	£178k
Current assets	£4.6m	£3.6m	£4.4m
Debtors	£1.6m	£1.2m	£1.2m
Deferred income	£210k	£398k	£217k
Source	FullAccounts · bulk data Aug 2025	FullAccounts · bulk data Aug 2025	FullAccounts · bulk data Apr 2026

Derived from the latest filing

How the business works

Profit margin: 10.9%; Profit ÷ revenue.
Gross margin: 47.2%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £217k; Revenue ÷ average employees.
Profit per employee: £23.7k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 1.7%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 2.1%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 11.7%; 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: ▲40%; Now £3.6m
Cash at bank: ▼18%; Now £403k
Headcount: ▲9%; Now 48
Deferred income: ▼46%; Now £217k
Fixed assets: ▲420%; Now £178k

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

James Fisher and Sons Public Limited Companyultimate parent75–100%
James Fisher Holdings Limited75–100%
James Fisher Holdings UK Limited75–100%
Martek Marine Limitedthis company

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

Sister companies (9)

Eds HV Group LimitedFigures not disclosed
Eds HV Management LimitedFigures not disclosed
Electricity Distribution Services LimitedFigures not disclosed
Eurotestconsult UK LtdFigures not disclosed
Fender Care Marine Solutions LimitedFigures not disclosed
James Fisher Asset Information Services LimitedFigures not disclosed
James Fisher Marine Services LimitedFigures not disclosed
Rotos 360 LimitedFigures not disclosed
Subsea Engenuity LimitedFigures not disclosed

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

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Dec 2025 (profit £1.1m), from the Companies House accounts bulk data published Apr 2026. Spotted an error? Request a correction.

Updated from Companies House on 13 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.