How much does U-Blox Luton Limited make?

U-Blox Luton Limited reported revenue of £4.1m and £146k profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

Is U-Blox Luton Limited profitable?

Yes — U-Blox Luton Limited reported a profit of £146k in the year to 31 Dec 2025.

Company No. 05921599 · Incorporated 1 Sep 2006

U-Blox Luton Limited

Registered name: U-BLOX LUTON LIMITED

Part of U-Blox Holding Ag group

U-Blox Luton Limited made £4.1m revenue and £146k profit in the year to 31 Dec 2025.

U-Blox Luton Limited’s revenue grew 60% to £4.1m in the year to 31 Dec 2025, with £146k profit. The company is classified under “other research and experimental development on natural sciences and engineering” and is based in Cambridge; we hold 3 years of its filed accounts.

Full P&L filedSection M · Professional, scientific and technical activitiesSIC 72190Other research and experimental development on natural sciences and engineering

Status: Active
Location: Cambridge, East of England
Age: 20 yrs · since 2006
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 Dec 2025

Key figures

Revenue

£4.1m

Growth ▲59.8%

Profit

£146k

Growth —

Profit margin

3.5%

Employees

—

Change —

Profit / employee

—

Profitable streak

1yr

Consecutive profitable years in our data

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

3 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Dec 2023	31 Dec 2024	31 Dec 2025
Disclosure	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£2.9m	£2.6m	£4.1m
Operating profit	£8.3k	£420	£149k
Profit before tax	£8.3k	£420	£153k
Profit after tax	£8.3k	−£1.7k	£146k
Profit (best available)	£8.3k	−£1.7k	£146k
Employees (average)	—	—	—
Ratios
Profit margin	0.3%	−0.1%	3.5%
Growth (year on year)
Revenue growth	—	▼11.6%	▲59.8%
Profit growth	—	▼120.3%	—
Balance sheet — indirect signals, not revenue
Net assets	—	—	—
Source	Accounts · bulk data Nov 2025	Accounts · bulk data Nov 2025	Accounts · bulk data Jul 2026

Derived from the latest filing

How the business works

Profit margin: 3.5%; Profit ÷ revenue.
Gross margin: —; 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

Ownership chain

U-Blox Holding Ag (registered outside the UK register)ultimate parent75–100%
U-Blox Luton Limitedthis company

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

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 Dec 2025 (profit £146k), 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.