How much does Proton Contracts Limited make?

Proton Contracts Limited reported revenue of £404k and £46k profit in the year to 31 May 2026, according to its accounts filed at Companies House.

How many employees does Proton Contracts Limited have?

Proton Contracts Limited reported an average of 1 employee in the year to 31 May 2026.

Is Proton Contracts Limited profitable?

Yes — Proton Contracts Limited reported a profit of £46k in the year to 31 May 2026.

Company No. 13372966 · Incorporated 4 May 2021

Proton Contracts Limited

Registered name: PROTON CONTRACTS LIMITED

Proton Contracts Limited made £404k revenue and £46k profit in the year to 31 May 2026.

Proton Contracts Limited’s revenue grew 2% to £404k in the year to 31 May 2026, with £46k profit and 1 employee. The company is classified under “construction of commercial buildings” and is based in London; we hold 5 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 41201Construction of commercial buildings SIC 41202Construction of domestic buildings

Status: Active
Location: London, London
Age: 5 yrs · since 2021
Type: Private Limited Company

Latest accounts · year to 31 May 2026

Key figures

IndependentSmall teamCapital-lightOperating leverage

Revenue

£404k

Growth ▲2%

Profit

£46k

Growth ▲560.7%

Profit margin

11.4%

Gross 9.7%

Employees

Change 0%

Profit / employee

£46k

Revenue/employee £404k

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.

5 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 May 2022	31 May 2023	31 May 2024	31 May 2025	31 May 2026
Disclosure	No P&L	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	—	£126k	£182k	£396k	£404k
Cost of sales	—	—	£139k	£331k	£365k
Gross profit	—	—	£43.7k	£64.8k	£39k
Operating profit	—	—	£15.3k	£7k	£46k
Profit before tax	—	—	£15.3k	£7k	£46k
Profit after tax	—	£4.4k	£11.2k	£7k	£46k
Profit (best available)	—	£4.4k	£11.2k	£7k	£46k
Staff costs	—	£15k	—	—	—
Employees (average)	—	1	1	1	1
Ratios
Profit margin	—	3.5%	6.2%	1.8%	11.4%
Gross margin	—	—	24%	16.4%	9.7%
Revenue per employee	—	£126k	£182k	£396k	£404k
Profit per employee	—	£4.4k	£11.2k	£7k	£46k
Growth (year on year)
Revenue growth	—	—	▲44.3%	▲117.1%	▲2%
Profit growth	—	—	▲156.3%	▼38.1%	▲560.7%
Headcount growth	—	—	0%	0%	0%
Balance sheet — indirect signals, not revenue
Cash at bank	—	—	£19.1k	£10.6k	£392
Net assets	£12.3k	£16.7k	£39.3k	£32.3k	£13.7k
Fixed assets	—	£24k	£16k	£8k	£2k
Current assets	£15.2k	£11.4k	£43.5k	£93.8k	£9.1k
Debtors	—	—	£16.8k	£67.8k	£7.4k
Source	FullAccounts · bulk data Dec 2023	FullAccounts · bulk data Dec 2023	FullAccounts · bulk data Feb 2025	FullAccounts · bulk data Jul 2025	FullAccounts · bulk data Jul 2026

Derived from the latest filing

How the business works

Profit margin: 11.4%; Profit ÷ revenue.
Gross margin: 9.7%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £404k; Revenue ÷ average employees.
Profit per employee: £46k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 0.5%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 1.8%; 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: ▼58%; Now £13.7k
Cash at bank: ▼96%; Now £392
Headcount: 0%; Now 1
Deferred income: —; Now —
Fixed assets: ▼75%; Now £2k

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 May 2026 (profit £46k), from the Companies House accounts bulk data published Jul 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.