How much does Space Interior Systems Limited make?

Space Interior Systems Limited reported revenue of £13.7m and £1.5m profit in the year to 31 May 2025, according to its accounts filed at Companies House.

How many employees does Space Interior Systems Limited have?

Space Interior Systems Limited reported an average of 20 employees in the year to 31 May 2025.

Is Space Interior Systems Limited profitable?

Yes — Space Interior Systems Limited reported a profit of £1.5m in the year to 31 May 2025.

Company No. 04762739 · Incorporated 13 May 2003

Space Interior Systems Limited

Registered name: SPACE INTERIOR SYSTEMS LIMITED

Space Interior Systems Limited made £13.7m revenue and £1.5m profit in the year to 31 May 2025.

Space Interior Systems Limited’s revenue grew 8% to £13.7m in the year to 31 May 2025, with £1.5m profit and 20 employees. The company is classified under “other construction installation” and is based in Somerset; we hold 3 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 43290Other construction installation

Status: Active
Location: Somerset, South West
Age: 23 yrs · since 2003
Type: Private Limited Company

Latest accounts · year to 31 May 2025

Key figures

IndependentCapital-lightDoing more with lessBoring industryCash flow filed

Revenue

£13.7m

Growth ▲7.6%

Profit

£1.5m

Growth ▼6.4%

Profit margin

10.8%

Gross 31.8%

Employees

Change ▼9.1%

Profit / employee

£73.6k

Revenue/employee £684k

Profitable streak

3yrs

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 May 2023	31 May 2024	31 May 2025
Disclosure	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£11.5m	£12.7m	£13.7m
Cost of sales	£7.5m	£9m	£9.3m
Gross profit	£4m	£3.7m	£4.4m
Operating profit	£2.3m	£1.6m	£1.7m
Profit before tax	£2.3m	£1.8m	£2m
Profit after tax	£1.8m	£1.6m	£1.5m
Profit (best available)	£1.8m	£1.6m	£1.5m
Staff costs	£1.1m	£1.4m	£1.3m
Employees (average)	19	22	20
Ratios
Profit margin	16%	12.4%	10.8%
Gross margin	34.9%	29.5%	31.8%
Revenue per employee	£607k	£578k	£684k
Profit per employee	£97.2k	£71.5k	£73.6k
Cash conversion	−86.7%	−35.6%	−63.7%
Growth (year on year)
Revenue growth	—	▲10.3%	▲7.6%
Profit growth	—	▼14.8%	▼6.4%
Headcount growth	—	▲15.8%	▼9.1%
Balance sheet — indirect signals, not revenue
Cash at bank	£6.5m	£6.7m	£2.9m
Net assets	£7m	£8.6m	£10m
Fixed assets	£70.3k	£73.8k	£314k
Current assets	£8.4m	£9.8m	£11.5m
Debtors	£1.9m	£2.4m	£3.1m
Deferred income	£185k	£114k	£611k
Cash from operations	−£2m	−£569k	−£1.1m
Source	FullAccounts · bulk data Feb 2025	FullAccounts · bulk data Feb 2025	FullAccounts · bulk data Feb 2026

Derived from the latest filing

How the business works

Profit margin: 10.8%; Profit ÷ revenue.
Gross margin: 31.8%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £684k; Revenue ÷ average employees.
Profit per employee: £73.6k; Profit ÷ average employees.
Cash conversion: −63.7%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 2.3%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 4.5%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 22.8%; 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: ▲17%; Now £10m
Cash at bank: ▼57%; Now £2.9m
Headcount: ▼9%; Now 20
Deferred income: ▲436%; Now £611k
Fixed assets: ▲326%; Now £314k

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

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 May 2025 (profit £1.5m), from the Companies House accounts bulk data published Feb 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.