How much does Ironburg Inventions Limited make?

Ironburg Inventions Limited reported revenue of £5.7m and £4.6m profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Ironburg Inventions Limited have?

Ironburg Inventions Limited reported an average of 2 employees in the year to 31 Dec 2025.

Is Ironburg Inventions Limited profitable?

Yes — Ironburg Inventions Limited reported a profit of £4.6m in the year to 31 Dec 2025.

Company No. 07627329 · Incorporated 9 May 2011

Ironburg Inventions Limited

Registered name: IRONBURG INVENTIONS LIMITED

Ironburg Inventions Limited made £5.7m revenue and £4.6m profit in the year to 31 Dec 2025.

Ironburg Inventions Limited’s revenue fell 38% to £5.7m in the year to 31 Dec 2025, with £4.6m profit and 2 employees. The company is classified under “other professional, scientific and technical activities” and is based in Wokingham; we hold 4 years of its filed accounts.

Full P&L filedSection M · Professional, scientific and technical activitiesSIC 74909Other professional, scientific and technical activities n.e.c.

Status: Active
Location: Wokingham, South East
Age: 15 yrs · since 2011
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. From the filing: “Corsair International Holding Company Limited”

Latest accounts · year to 31 Dec 2025

Key figures

Small teamCapital-light

Revenue

£5.7m

Growth ▼38.4%

Profit

£4.6m

Growth ▼38.9%

Profit margin

81.5%

Gross 95.3%

Employees

Change ▼33.3%

Profit / employee

£2.3m

Revenue/employee £2.8m

Profitable streak

4yrs

Consecutive profitable years in our data

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

4 filed years

Financial history

Multi-year financials, oldest to newest
Year to	30 Dec 2022	30 Dec 2023	30 Dec 2024	31 Dec 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£10.1m	£9.6m	£9.2m	£5.7m
Cost of sales	£81.4k	£267k	£267k	£267k
Gross profit	£10m	£9.3m	£9m	£5.4m
Operating profit	—	£8.3m	£8.5m	£5.2m
Profit before tax	£7.8m	£8.3m	£8.4m	£5.2m
Profit after tax	£6.9m	£7.6m	£7.6m	£4.6m
Profit (best available)	£6.9m	£7.6m	£7.6m	£4.6m
Employees (average)	3	3	3	2
Ratios
Profit margin	68.6%	79.1%	82.2%	81.5%
Gross margin	99.2%	97.2%	97.1%	95.3%
Revenue per employee	£3.4m	£3.2m	£3.1m	£2.8m
Profit per employee	£2.3m	£2.5m	£2.5m	£2.3m
Growth (year on year)
Revenue growth	—	▼5%	▼3.8%	▼38.4%
Profit growth	—	▲9.6%	▲0.1%	▼38.9%
Headcount growth	—	0%	0%	▼33.3%
Balance sheet — indirect signals, not revenue
Cash at bank	£28.7k	£80.1k	£43.8k	£109k
Net assets	£22.4m	£30m	£10.8m	£15.5m
Fixed assets	£1.1m	£802k	£535k	£267k
Current assets	£23.5m	£30.9m	£12m	£15.5m
Debtors	£2.7m	£2.6m	£2.9m	£1.6m
Deferred income	£64.6k	£59.1k	£71k	£121k
Source	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2025	FullAccounts · bulk data Sep 2026

Derived from the latest filing

How the business works

Profit margin: 81.5%; Profit ÷ revenue.
Gross margin: 95.3%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £2.8m; Revenue ÷ average employees.
Profit per employee: £2.3m; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 4.7%; 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: 27.3%; 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: ▲43%; Now £15.5m
Cash at bank: ▲148%; Now £109k
Headcount: ▼33%; Now 2
Deferred income: ▲71%; Now £121k
Fixed assets: ▼50%; Now £267k

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

Subsidiaries (1)

Scuf Gaming Europe LimitedLiquidationFigures not disclosed

Minority corporate shareholders

Corsair International Holding Company Limited 25–50%

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 £4.6m), from the Companies House accounts bulk data published Sep 2026. 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.