How much does Onetag Limited make?

Onetag Limited reported revenue of £46.6m and £12.8m profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Onetag Limited have?

Onetag Limited reported an average of 14 employees in the year to 31 Dec 2025.

Is Onetag Limited profitable?

Yes — Onetag Limited reported a profit of £12.8m in the year to 31 Dec 2025.

Company No. 09905190 · Incorporated 7 Dec 2015

Onetag Limited

Registered name: ONETAG LIMITED

Onetag Limited made £46.6m revenue and £12.8m profit in the year to 31 Dec 2025.

Onetag Limited’s revenue grew 39% to £46.6m in the year to 31 Dec 2025, with £12.8m profit and 14 employees. The company is classified under “advertising agencies” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection M · Professional, scientific and technical activitiesSIC 73110Advertising agencies

Status: Active
Location: London, London
Age: 10 yrs · since 2015
Type: Private Limited Company

Latest accounts · year to 31 Dec 2025

Key figures

IndependentCapital-lightOperating leverageCash flow filed

Revenue

£46.6m

Growth ▲39.5%

Profit

£12.8m

Growth ▲39.9%

Profit margin

27.4%

Gross 49.3%

Employees

Change ▲27.3%

Profit / employee

£913k

Revenue/employee £3.3m

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	31 Dec 2022	31 Dec 2023	31 Dec 2024	31 Dec 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£17.9m	£24.7m	£33.4m	£46.6m
Cost of sales	£10.8m	£13.6m	£17.7m	£23.7m
Gross profit	£7.1m	£11.1m	£15.7m	£23m
Profit before tax	£6.6m	£7.9m	£12.2m	£17.2m
Profit after tax	£5.3m	£6m	£9.1m	£12.8m
Profit (best available)	£5.3m	£6m	£9.1m	£12.8m
Staff costs	£115k	£1.8m	£2.1m	£3.3m
Employees (average)	3	13	11	14
Ratios
Profit margin	29.7%	24.4%	27.3%	27.4%
Gross margin	39.4%	45%	47.1%	49.3%
Revenue per employee	£6m	£1.9m	£3m	£3.3m
Profit per employee	£1.8m	£463k	£831k	£913k
Growth (year on year)
Revenue growth	—	▲37.9%	▲35.6%	▲39.5%
Profit growth	—	▲13.4%	▲51.7%	▲39.9%
Headcount growth	—	▲333.3%	▼15.4%	▲27.3%
Balance sheet — indirect signals, not revenue
Cash at bank	£6.4m	£9.3m	£4.2m	£8.2m
Net assets	£7.2m	£13.2m	£12.3m	£17.8m
Fixed assets	£9.1k	£10.6k	£11.8k	£11.6k
Current assets	£26.3m	£34.2m	£35.4m	£40.1m
Debtors	£18.9m	£23.8m	£28.6m	£27.6m
Cash from operations	£8.6m	£4.2m	£6.3m	£18.9m
Source	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Sep 2024	FullAccounts · bulk data Jul 2025	FullAccounts · bulk data Jul 2026

Derived from the latest filing

How the business works

Profit margin: 27.4%; Profit ÷ revenue.
Gross margin: 49.3%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £3.3m; Revenue ÷ average employees.
Profit per employee: £913k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 0%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 59.3%; 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: ▲45%; Now £17.8m
Cash at bank: ▲94%; Now £8.2m
Headcount: ▲27%; Now 14
Deferred income: —; Now —
Fixed assets: ▼2%; Now £11.6k

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Dec 2025 (profit £12.8m), from the Companies House accounts bulk data published Jul 2026. Spotted an error? Request a correction.

Updated from Companies House on 12 Oct 2026

Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.