How much does S 1 Developments Limited make?

S 1 Developments Limited reported revenue of £38.7m and £350k profit in the year to 30 Sep 2025, according to its accounts filed at Companies House.

How many employees does S 1 Developments Limited have?

S 1 Developments Limited reported an average of 38 employees in the year to 30 Sep 2025.

Is S 1 Developments Limited profitable?

Yes — S 1 Developments Limited reported a profit of £350k in the year to 30 Sep 2025.

Company No. 06378284 · Incorporated 21 Sep 2007

S 1 Developments Limited

Registered name: S 1 DEVELOPMENTS LIMITED

Part of Eugate Investments Limited group

S 1 Developments Limited made £38.7m revenue and £350k profit in the year to 30 Sep 2025. read from filing text

S 1 Developments Limited’s revenue grew 3% to £38.7m in the year to 30 Sep 2025, with £350k profit and 38 employees. The company is classified under “development of building projects” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 41100Development of building projects

Status: Active
Location: London, London
Age: 19 yrs · since 2007
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. From the filing: “The ultimate parent company is Eugate Investments Limited, a company registered in England and Wales.”

Latest accounts · year to 30 Sep 2025

Key figures

Capital-lightDoing more with lessCash flow filed

Revenue

£38.7m

Growth ▲2.6%

Profit

£350k

Growth ▼60.7%

Profit margin

0.9%

Gross 3.2%

Employees

Change ▼20.8%

Profit / employee

£9.2k

Revenue/employee £1m

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	30 Sep 2022	30 Sep 2023	30 Sep 2024	30 Sep 2025
Disclosure	Full P&Lread from filing text	Full P&Lread from filing text	Full P&Lread from filing text	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	£25.1m	£25.2m	£37.7m	£38.7m
Cost of sales	£18.9m	£23.3m	£35.8m	£37.4m
Gross profit	£6.2m	£1.9m	£1.9m	£1.2m
Operating profit	£5.2m	£959k	£875k	£222k
Profit before tax	£5.1m	£959k	£1.2m	£467k
Profit after tax	£4.2m	£735k	£891k	£350k
Profit (best available)	£4.2m	£735k	£891k	£350k
Staff costs	£2.3m	£2.3m	£2.8m	£2.6m
Employees (average)	35	35	48	38
Ratios
Profit margin	16.6%	2.9%	2.4%	0.9%
Gross margin	24.9%	7.5%	5%	3.2%
Revenue per employee	£718k	£719k	£785k	£1m
Profit per employee	£119k	£21k	£18.6k	£9.2k
Cash conversion	−129.4%	27.7%	−44.2%	330.1%
Growth (year on year)
Revenue growth	—	▲0.3%	▲49.7%	▲2.6%
Profit growth	—	▼82.4%	▲21.2%	▼60.7%
Headcount growth	—	0%	▲37.1%	▼20.8%
Balance sheet — indirect signals, not revenue
Cash at bank	£11.7m	£6.5m	£6.9m	£5.9m
Net assets	£13.1m	£13.9m	£14.8m	£15.1m
Fixed assets	£276k	£587k	£690k	£716k
Current assets	£35.1m	£29.8m	£29.8m	£28.5m
Debtors	£156k	£493k	£1.1m	£416k
Deferred income	£94.6k	£64k	£96.9k	£160k
Cash from operations	−£6.8m	£266k	−£387k	£734k
Source	FullAccounts · bulk data Jun 2024	FullAccounts · bulk data Jun 2024	FullAccounts · bulk data Jun 2025	FullAccounts · bulk data Jun 2026

Derived from the latest filing

How the business works

Profit margin: 0.9%; Profit ÷ revenue.
Gross margin: 3.2%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £1m; Revenue ÷ average employees.
Profit per employee: £9.2k; Profit ÷ average employees.
Cash conversion: 330.1%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 1.8%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 0.4%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 1.1%; 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: ▲2%; Now £15.1m
Cash at bank: ▼15%; Now £5.9m
Headcount: ▼21%; Now 38
Deferred income: ▲65%; Now £160k
Fixed assets: ▲4%; Now £716k

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

Eugate Investments Limitedultimate parent75–100%
S 1 Developments Limitedthis company

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

Sister companies (1)

ST Andrews Teague LimitedFigures not disclosed

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 30 Sep 2025 (profit £350k), from the Companies House accounts bulk data published Jun 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.