How much does Castle Chemicals Ltd. make?

Castle Chemicals Ltd. reported revenue of £31.4m and £1.1m profit in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Castle Chemicals Ltd. have?

Castle Chemicals Ltd. reported an average of 10 employees in the year to 31 Dec 2025.

Is Castle Chemicals Ltd. profitable?

Yes — Castle Chemicals Ltd. reported a profit of £1.1m in the year to 31 Dec 2025.

Company No. SC157459 · Incorporated 13 Apr 1995

Castle Chemicals Ltd.

Registered name: CASTLE CHEMICALS LTD.

Part of Castle Chemicals Trustees Limited group

Castle Chemicals Ltd. made £31.4m revenue and £1.1m profit in the year to 31 Dec 2025.

Castle Chemicals Ltd.’s revenue fell 25% to £31.4m in the year to 31 Dec 2025, with £1.1m profit and 10 employees. The company is classified under “wholesale of chemical products” and is based in Edinburgh; we hold 4 years of its filed accounts.

Full P&L filedSection G · Wholesale and retail trade; repair of motor vehiclesSIC 46750Wholesale of chemical products

Status: Active
Location: Edinburgh, Scotland
Age: 31 yrs · since 1995
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

Capital-lightCash flow filed

Revenue

£31.4m

Growth ▼25.3%

Profit

£1.1m

Growth ▼23.6%

Profit margin

3.5%

Gross 9.5%

Employees

Change ▼9.1%

Profit / employee

£110k

Revenue/employee £3.1m

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	31 Dec 2022	31 Dec 2023	31 Dec 2024	31 Dec 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£58m	£39.2m	£42.1m	£31.4m
Cost of sales	£53.4m	£35.5m	£38.4m	£28.4m
Gross profit	£4.7m	£3.7m	£3.7m	£3m
Operating profit	£3.6m	£2.6m	£2.5m	£1.8m
Profit before tax	£3.1m	£2m	£1.9m	£1.5m
Profit after tax	£2.5m	£1.5m	£1.4m	£1.1m
Profit (best available)	£2.5m	£1.5m	£1.4m	£1.1m
Staff costs	£631k	£680k	£787k	£727k
Employees (average)	11	10	11	10
Ratios
Profit margin	4.3%	3.9%	3.4%	3.5%
Gross margin	8.1%	9.5%	8.7%	9.5%
Revenue per employee	£5.3m	£3.9m	£3.8m	£3.1m
Profit per employee	£226k	£152k	£131k	£110k
Cash conversion	72.2%	−325.1%	38.7%	−299.5%
Growth (year on year)
Revenue growth	—	▼32.4%	▲7.2%	▼25.3%
Profit growth	—	▼38.8%	▼5.5%	▼23.6%
Headcount growth	—	▼9.1%	▲10%	▼9.1%
Balance sheet — indirect signals, not revenue
Cash at bank	£1.8m	£665k	£893k	£204k
Net assets	£3.6m	£2.3m	£2.9m	£3.2m
Fixed assets	£10.3k	£9.8k	£8.3k	£5.5k
Current assets	£25.7m	£14.6m	£20.2m	£13.9m
Debtors	£14.5m	£8m	£9.4m	£6.9m
Cash from operations	£2.6m	−£8.3m	£951k	−£5.5m
Source	Accounts · bulk data Jul 2024	Accounts · bulk data Jul 2024	FullAccounts · bulk data Jun 2025	FullAccounts · bulk data Jun 2026

Derived from the latest filing

How the business works

Profit margin: 3.5%; Profit ÷ revenue.
Gross margin: 9.5%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £3.1m; Revenue ÷ average employees.
Profit per employee: £110k; Profit ÷ average employees.
Cash conversion: −299.5%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 0%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 21.9%; 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: ▲10%; Now £3.2m
Cash at bank: ▼77%; Now £204k
Headcount: ▼9%; Now 10
Deferred income: —; Now —
Fixed assets: ▼34%; Now £5.5k

Corporate ownership

Group structure

Ownership chain

Castle Chemicals Trustees Limitedultimate parent75–100%
Castle Chemicals Ltd.this 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 £1.1m), 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.