How much does Sentry Aerospares Limited make?

Sentry Aerospares Limited reported revenue of £234m and £40.6m profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Sentry Aerospares Limited have?

Sentry Aerospares Limited reported an average of 61 employees in the year to 31 Dec 2025.

Is Sentry Aerospares Limited profitable?

Yes — Sentry Aerospares Limited reported a profit of £40.6m in the year to 31 Dec 2025.

Company No. 04021429 · Incorporated 26 Jun 2000

Sentry Aerospares Limited

Registered name: SENTRY AEROSPARES LIMITED

Part of Sentry Group Holdings Limited group

Sentry Aerospares Limited made £234m revenue and £40.6m profit in the year to 31 Dec 2025.

Sentry Aerospares Limited’s revenue grew 21% to £234m in the year to 31 Dec 2025, with £40.6m profit and 61 employees. The company is classified under “service activities incidental to air transportation” and is based in Watford; we hold 2 years of its filed accounts.

Full P&L filedSection H · Transportation and storageSIC 52230Service activities incidental to air transportation

Status: Active
Location: Watford, East of England
Age: 26 yrs · since 2000
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

£234m

Growth ▲21.1%

Profit

£40.6m

Growth ▼2.2%

Profit margin

17.3%

Gross 29.1%

Employees

Change ▲3.4%

Profit / employee

£666k

Revenue/employee £3.8m

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 Dec 2024	31 Dec 2025
Disclosure	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£194m	£234m
Cost of sales	£130m	£166m
Gross profit	£63.7m	£68.2m
Operating profit	£48.3m	£47.8m
Profit before tax	£55.6m	£53m
Profit after tax	£41.5m	£40.6m
Profit (best available)	£41.5m	£40.6m
Staff costs	£7.5m	£9.2m
Employees (average)	59	61
Ratios
Profit margin	21.4%	17.3%
Gross margin	32.9%	29.1%
Revenue per employee	£3.3m	£3.8m
Profit per employee	£703k	£666k
Growth (year on year)
Revenue growth	—	▲21.1%
Profit growth	—	▼2.2%
Headcount growth	—	▲3.4%
Balance sheet — indirect signals, not revenue
Cash at bank	£643k	£2.5m
Net assets	£194m	£200m
Fixed assets	£387k	£38.4m
Current assets	£308m	£303m
Debtors	£38.5m	£49.1m
Deferred income	£7m	£5.8m
Source	FullAccounts · bulk data May 2026	FullAccounts · bulk data May 2026

Derived from the latest filing

How the business works

Profit margin: 17.3%; Profit ÷ revenue.
Gross margin: 29.1%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £3.8m; Revenue ÷ average employees.
Profit per employee: £666k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 16.4%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 2.5%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 20.9%; 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: ▲3%; Now £200m
Cash at bank: ▲294%; Now £2.5m
Headcount: ▲3%; Now 61
Deferred income: ▼17%; Now £5.8m
Fixed assets: ▲9813%; Now £38.4m

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

Sentry Group Holdings Limitedultimate parent75–100%
A2K Holdings Limited75–100%
A2K Topco Limited75–100%
A2K Midco Limited75–100%
Sentry Aerospares Holdings Limited75–100%
Sentry Aerospares 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).

Same industry, similar size

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Dec 2025 (profit £40.6m), from the Companies House accounts bulk data published May 2026. Spotted an error? Request a correction.

Updated from Companies House on 11 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.