How much does Seamariner (WB) Limited make?

Seamariner (WB) Limited reported revenue of £13.3m and £432k profit in the year to 31 Dec 2024, according to its accounts filed at Companies House.

How many employees does Seamariner (WB) Limited have?

Seamariner (WB) Limited reported an average of 0 employees in the year to 31 Dec 2024.

Is Seamariner (WB) Limited profitable?

Yes — Seamariner (WB) Limited reported a profit of £432k in the year to 31 Dec 2024.

Company No. 12968142 · Incorporated 22 Oct 2020

Seamariner (WB) Limited

Registered name: SEAMARINER (WB) LIMITED

Part of Seamariner Uk Holdings Limited group

Seamariner (WB) Limited made £13.3m revenue and £432k profit in the year to 31 Dec 2024. read from filing text

Seamariner (WB) Limited’s revenue grew 8% to £13.3m in the year to 31 Dec 2024, with £432k profit and 0 employees. The company is classified under “other activities of employment placement agencies” and is based in Southampton; we hold 3 years of its filed accounts.

Full P&L filedSection N · Administrative and support servicesSIC 78109Other activities of employment placement agencies

Status: Active
Location: Southampton, South East
Age: 6 yrs · since 2020
Type: Private Limited Company

Pass-through vehicle. This looks like a holding, staffing or umbrella company. Its revenue and profit may largely pass through to or from other entities, so the figures may not reflect a standalone operating business. It is excluded from our opportunity lists.

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.

Latest accounts · year to 31 Dec 2024

Key figures

Small teamYoung and profitableOperating leverageDoing more with less

Revenue

£13.3m

Growth ▲8.1%

Profit

£432k

Growth ▲32.6%

Profit margin

3.3%

Gross 17.7%

Employees

Change ▼100%

Profit / employee

—

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 2022	31 Dec 2023	31 Dec 2024
Disclosure	Full P&L	Full P&L	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	£14.6m	£12.3m	£13.3m
Cost of sales	£12m	£10.3m	£10.9m
Gross profit	£2.6m	£2m	£2.4m
Operating profit	£1.5m	£479k	£695k
Profit before tax	£1.5m	£467k	£683k
Profit after tax	£143k	£326k	£432k
Profit (best available)	£143k	£326k	£432k
Staff costs	£12.6m	£11.1m	£0
Employees (average)	83	69	0
Ratios
Profit margin	1%	2.6%	3.3%
Gross margin	17.6%	16.2%	17.7%
Revenue per employee	£175k	£178k	—
Profit per employee	£1.7k	£4.7k	—
Cash conversion	23.5%	134.4%	—
Growth (year on year)
Revenue growth	—	▼15.7%	▲8.1%
Profit growth	—	▲128%	▲32.6%
Headcount growth	—	▼16.9%	▼100%
Balance sheet — indirect signals, not revenue
Cash at bank	£1	£1	£1
Net assets	£1	£1	£1.4m
Fixed assets	£1.4m	£1.1m	£1.7m
Current assets	£2.1k	£2.1k	£2.1k
Debtors	£1.6m	£1.6m	£0
Deferred income	—	£0	£0
Cash from operations	£349k	£644k	—
Source	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2025

Derived from the latest filing

How the business works

Profit margin: 3.3%; Profit ÷ revenue.
Gross margin: 17.7%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: —; Revenue ÷ average employees.
Profit per employee: —; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 12.8%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 0%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 0%; 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: ▲141685400%; Now £1.4m
Cash at bank: 0%; Now £1
Headcount: ▼100%; Now 0
Deferred income: —; Now £0
Fixed assets: ▲52%; Now £1.7m

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

Seamariner Uk Holdings Limited (registered outside the UK register)ultimate parent75–100%
Seamariner (WB) 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).

Same industry, similar size

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Dec 2024 (profit £432k), from the Companies House accounts bulk data published Sep 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.