How much does Sirius UK1 Limited make?

Sirius UK1 Limited reported revenue of £71.7m and £15.2m profit in the year to 31 Mar 2025, according to its accounts filed at Companies House.

How many employees does Sirius UK1 Limited have?

Sirius UK1 Limited reported an average of 170 employees in the year to 31 Mar 2025.

Is Sirius UK1 Limited profitable?

Yes — Sirius UK1 Limited reported a profit of £15.2m in the year to 31 Mar 2025.

Company No. 13801050 · Incorporated 14 Dec 2021

Sirius UK1 Limited

Registered name: SIRIUS UK1 LIMITED

Part of Helix Investments Limited group

Sirius UK1 Limited made £71.7m revenue and £15.2m profit in the year to 31 Mar 2025.

Sirius UK1 Limited’s revenue grew 28% to £71.7m in the year to 31 Mar 2025, with £15.2m profit and 170 employees. The company is classified under “financial management” and is based in London; we hold 2 years of its filed accounts.

Full P&L filedSection M · Professional, scientific and technical activitiesSIC 70221Financial management

Status: Active
Location: London, London
Age: 4 yrs · since 2021
Type: Private Limited Company

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.

Latest accounts · year to 31 Mar 2025

Key figures

Young and profitableOperating leverage

Revenue

£71.7m

Growth ▲28%

Profit

£15.2m

Growth ▲1179%

Profit margin

21.2%

Employees

170

Change ▲18.9%

Profit / employee

£89.5k

Revenue/employee £422k

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 Mar 2024	31 Mar 2025
Disclosure	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£56m	£71.7m
Operating profit	£1.1m	£26.5m
Profit before tax	£1.3m	£15.9m
Profit after tax	£1.2m	£15.2m
Profit (best available)	£1.2m	£15.2m
Employees (average)	143	170
Ratios
Profit margin	2.1%	21.2%
Revenue per employee	£391k	£422k
Profit per employee	£8.3k	£89.5k
Growth (year on year)
Revenue growth	—	▲28%
Profit growth	—	▲1179%
Headcount growth	—	▲18.9%
Balance sheet — indirect signals, not revenue
Net assets	—	—
Source	Accounts · bulk data Jan 2026	Accounts · bulk data Jan 2026

Derived from the latest filing

How the business works

Profit margin: 21.2%; Profit ÷ revenue.
Gross margin: —; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £422k; Revenue ÷ average employees.
Profit per employee: £89.5k; 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: ▲19%; Now 170
Deferred income: —; Now —
Fixed assets: —; Now —

Corporate ownership

Group structure

Ownership chain

Helix Investments Limited (registered outside the UK register)ultimate parent75–100%
Sirius UK1 Limitedthis company

Bands show the share of ownership each company holds in the one below it.

Subsidiaries (3)

Bizspace Developments LimitedFigures not disclosed
Bizspace Holdings LimitedFigures not disclosed
M25 Business Centres LtdFigures not disclosed

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 accounts for the year to 31 Mar 2025 (profit £15.2m), from the Companies House accounts bulk data published Jan 2026. Spotted an error? Request a correction.

Updated from Companies House on 13 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.