How much does Sideline Design Limited make?

Sideline Design Limited reported revenue of £26.4m and £3m profit in the year to 31 May 2025, according to its accounts filed at Companies House.

How many employees does Sideline Design Limited have?

Sideline Design Limited reported an average of 63 employees in the year to 31 May 2025.

Is Sideline Design Limited profitable?

Yes — Sideline Design Limited reported a profit of £3m in the year to 31 May 2025.

Company No. 03963558 · Incorporated 4 Apr 2000

Sideline Design Limited

Registered name: SIDELINE DESIGN LIMITED

Part of Sideline Design Trustee Limited group

Sideline Design Limited made £26.4m revenue and £3m profit in the year to 31 May 2025.

Sideline Design Limited’s revenue grew 10% to £26.4m in the year to 31 May 2025, with £3m profit and 63 employees. The company is classified under “manufacture of other parts and accessories for motor vehicles” and is based in Brentwood; we hold 4 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 29320Manufacture of other parts and accessories for motor vehicles SIC 45200Maintenance and repair of motor vehicles SIC 45310Wholesale trade of motor vehicle parts and accessories

Status: Active
Location: Brentwood, 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 May 2025

Key figures

Capital-lightOperating leverageCash flow filed

Revenue

£26.4m

Growth ▲10.1%

Profit

£3m

Growth ▲24.1%

Profit margin

11.5%

Gross 33.3%

Employees

Change ▲14.5%

Profit / employee

£48k

Revenue/employee £419k

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	31 May 2022	31 May 2023	31 May 2024	31 May 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£19.1m	£19.8m	£24m	£26.4m
Cost of sales	£14.4m	£13.6m	£16.3m	£17.6m
Gross profit	£4.7m	£6.2m	£7.7m	£8.8m
Operating profit	£1.2m	£1.6m	£2.6m	£3.3m
Profit before tax	£1.2m	£1.5m	£2.5m	£3.4m
Profit after tax	£868k	£1.1m	£2.4m	£3m
Profit (best available)	£868k	£1.1m	£2.4m	£3m
Staff costs	£1.3m	£1.7m	£2.2m	£2.6m
Employees (average)	48	50	55	63
Ratios
Profit margin	4.5%	5.6%	10.2%	11.5%
Gross margin	24.8%	31.4%	32%	33.3%
Revenue per employee	£398k	£396k	£436k	£419k
Profit per employee	£18.1k	£22.3k	£44.3k	£48k
Cash conversion	−20%	−69.2%	−37.3%	11%
Growth (year on year)
Revenue growth	—	▲3.6%	▲21%	▲10.1%
Profit growth	—	▲28.7%	▲117.9%	▲24.1%
Headcount growth	—	▲4.2%	▲10%	▲14.5%
Balance sheet — indirect signals, not revenue
Cash at bank	£1.2m	£1.6m	£1.7m	£1.4m
Net assets	£7m	£8m	£10.5m	£8.7m
Fixed assets	£1.2m	£1.3m	£1.3m	£1.4m
Current assets	£10.5m	£12.1m	£15.6m	£13.7m
Debtors	£1.4m	£1.3m	£1.2m	£813k
Cash from operations	−£243k	−£1.1m	−£968k	£367k
Source	FullAccounts · bulk data Feb 2024	FullAccounts · bulk data Feb 2024	FullAccounts · bulk data Dec 2024	FullAccounts · bulk data May 2026

Derived from the latest filing

How the business works

Profit margin: 11.5%; Profit ÷ revenue.
Gross margin: 33.3%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £419k; Revenue ÷ average employees.
Profit per employee: £48k; Profit ÷ average employees.
Cash conversion: 11%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 5.3%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 3.1%; 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: ▼17%; Now £8.7m
Cash at bank: ▼17%; Now £1.4m
Headcount: ▲15%; Now 63
Deferred income: —; Now —
Fixed assets: ▲10%; Now £1.4m

Corporate ownership

Group structure

Ownership chain

Sideline Design Trustee Limitedultimate parent75–100%
Sideline Design 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 May 2025 (profit £3m), from the Companies House accounts bulk data published May 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.