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Company No. OC440978 · Incorporated 9 Feb 2022

Castleforge LLP

Registered name: CASTLEFORGE LLP

Castleforge LLP made £49m revenue and £4.6m profit in the year to 31 Mar 2025.

Castleforge LLP’s revenue grew 5% to £49m in the year to 31 Mar 2025, with £4.6m profit. The company is based in London; we hold 3 years of its filed accounts.

Full P&L filed
Status
Active
Location
London
Age
4 yrs · since 2022
Type
Limited Liability Partnership
Latest accounts · year to 31 Mar 2025

Key figures

Revenue
£49m
Growth ▲4.7%
Profit
£4.6m
Growth ▲65.5%
Profit margin
9.3%
Gross 92.8%
Employees
—
Change —
Profit / employee
—
 
Profitable streak
3yrs
Consecutive profitable years in our data
3 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Mar 202331 Mar 202431 Mar 2025
DisclosureFull P&LFull P&LFull P&L
Profit & loss
Revenue (turnover)£34.3m£46.8m£49m
Cost of sales−£1.7m−£1.8m−£3.5m
Gross profit£32.6m£45m£45.5m
Operating profit£6.7m£3.4m£5.5m
Profit before tax£6.7m£3.4m£5.4m
Profit after tax£6.4m£2.8m£4.6m
Profit (best available)£6.4m£2.8m£4.6m
Employees (average)———
Ratios
Profit margin18.5%5.9%9.3%
Gross margin95.1%96.1%92.8%
Growth (year on year)
Revenue growth—▲36.4%▲4.7%
Profit growth—▼56.6%▲65.5%
Balance sheet — indirect signals, not revenue
Net assets———
SourceAccounts · bulk data May 2025Accounts · bulk data May 2025Accounts · bulk data Feb 2026
Derived from the latest filing

How the business works

Profit margin
9.3%
Profit ÷ revenue.
Gross margin
92.8%
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
—
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
—
Now —
Deferred income
—
Now —
Fixed assets
—
Now —
Corporate ownership

Group structure

Subsidiaries (5)

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

Sources

Latest figures from accounts for the year to 31 Mar 2025 (profit £4.6m), from the Companies House accounts bulk data published Feb 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.