How much does Block21 Ltd make?

Block21 Ltd reported revenue of £125k and £41.6k profit in the year to 31 May 2025, according to its accounts filed at Companies House.

How many employees does Block21 Ltd have?

Block21 Ltd reported an average of 1 employee in the year to 31 May 2025.

Is Block21 Ltd profitable?

Yes — Block21 Ltd reported a profit of £41.6k in the year to 31 May 2025.

Company No. 14841005 · Incorporated 2 May 2023

Block21 Ltd

Registered name: BLOCK21 LTD

Block21 Ltd made £125k revenue and £41.6k profit in the year to 31 May 2025.

Block21 Ltd’s revenue grew 36% to £125k in the year to 31 May 2025, with £41.6k profit and 1 employee. The company is classified under “other information technology service activities” and is based in London; we hold 2 years of its filed accounts.

Full P&L filedSection J · Information and communicationSIC 62090Other information technology service activities

Status: Active
Location: London, London
Age: 3 yrs · since 2023
Type: Private Limited Company

Latest accounts · year to 31 May 2025

Key figures

IndependentSmall teamYoung and profitableOperating leverage

Revenue

£125k

Growth ▲35.7%

Profit

£41.6k

Growth ▲115.4%

Profit margin

33.3%

Employees

Change 0%

Profit / employee

£41.6k

Revenue/employee £125k

Profitable streak

2yrs

Consecutive profitable years in our data

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

2 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 May 2024	31 May 2025
Disclosure	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£92k	£125k
Profit after tax	£19.3k	£41.6k
Profit (best available)	£19.3k	£41.6k
Staff costs	£28k	£34.6k
Employees (average)	1	1
Ratios
Profit margin	21%	33.3%
Revenue per employee	£92k	£125k
Profit per employee	£19.3k	£41.6k
Growth (year on year)
Revenue growth	—	▲35.7%
Profit growth	—	▲115.4%
Headcount growth	—	0%
Balance sheet — indirect signals, not revenue
Net assets	£10k	£40k
Fixed assets	£5k	£25k
Current assets	£10k	£20k
Source	FullAccounts · bulk data Mar 2025	FullAccounts · bulk data Mar 2026

Derived from the latest filing

How the business works

Profit margin: 33.3%; Profit ÷ revenue.
Gross margin: —; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £125k; Revenue ÷ average employees.
Profit per employee: £41.6k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 20%; 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: ▲300%; Now £40k
Cash at bank: —; Now —
Headcount: 0%; Now 1
Deferred income: —; Now —
Fixed assets: ▲400%; Now £25k

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 May 2025 (profit £41.6k), from the Companies House accounts bulk data published Mar 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.