How much does Celsis Limited make?

Celsis Limited reported revenue of £7.8m and £4.2m profit in the year to 27 Dec 2025, according to its accounts filed at Companies House.

How many employees does Celsis Limited have?

Celsis Limited reported an average of 14 employees in the year to 27 Dec 2025.

Is Celsis Limited profitable?

Yes — Celsis Limited reported a profit of £4.2m in the year to 27 Dec 2025.

Company No. 02695296 · Incorporated 9 Mar 1992

Celsis Limited

Registered name: CELSIS LIMITED

Part of Charles River Laboratories (Holdings) Limited group

Celsis Limited made £7.8m revenue and £4.2m profit in the year to 27 Dec 2025.

Celsis Limited’s revenue grew 14% to £7.8m in the year to 27 Dec 2025, with £4.2m profit and 14 employees. The company is classified under “manufacture of other chemical products” and is based in Margate; we hold 3 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 20590Manufacture of other chemical products n.e.c.SIC 26511Manufacture of electronic measuring, testing etc. equipment, not for industrial process control SIC 72190Other research and experimental development on natural sciences and engineering

Status: Active
Location: Margate, South East
Age: 34 yrs · since 1992
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: “Celsis Group Limited”

Latest accounts · year to 27 Dec 2025

Key figures

Capital-light

Revenue

£7.8m

Growth ▲13.8%

Profit

£4.2m

Growth ▼12.3%

Profit margin

53.6%

Gross 94.7%

Employees

Change ▲7.7%

Profit / employee

£300k

Revenue/employee £560k

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	30 Dec 2023	28 Dec 2024	27 Dec 2025
Disclosure	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£6.5m	£6.9m	£7.8m
Cost of sales	£174k	£179k	£412k
Gross profit	£6.3m	£6.7m	£7.4m
Operating profit	£4.7m	£4.9m	£5.5m
Profit before tax	£4.8m	£4.9m	£5.6m
Profit after tax	£4.8m	£4.8m	£4.2m
Profit (best available)	£4.8m	£4.8m	£4.2m
Staff costs	£1.3m	£1.6m	£1.8m
Employees (average)	12	13	14
Ratios
Profit margin	73.9%	69.6%	53.6%
Gross margin	97.3%	97.4%	94.7%
Revenue per employee	£540k	£530k	£560k
Profit per employee	£399k	£369k	£300k
Growth (year on year)
Revenue growth	—	▲6.3%	▲13.8%
Profit growth	—	▲0.1%	▼12.3%
Headcount growth	—	▲8.3%	▲7.7%
Balance sheet — indirect signals, not revenue
Net assets	£2.2m	£3m	£3m
Fixed assets	£0	£0	£0
Current assets	£2.3m	£3.3m	£3.6m
Debtors	£2m	£3.3m	£3.6m
Deferred income	£140k	£282k	£319k
Source	Full Accounts · bulk data Sep 2025	Full Accounts · bulk data Sep 2025	Full Accounts · bulk data Jun 2026

Derived from the latest filing

How the business works

Profit margin: 53.6%; Profit ÷ revenue.
Gross margin: 94.7%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £560k; Revenue ÷ average employees.
Profit per employee: £300k; Profit ÷ average employees.
Cash conversion: —; 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: 4.1%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 45.9%; 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: ▼0%; Now £3m
Cash at bank: —; Now —
Headcount: ▲8%; Now 14
Deferred income: ▲13%; Now £319k
Fixed assets: —; Now £0

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

Charles River Laboratories (Holdings) Limited (registered outside the UK register)ultimate parent75–100%
Celsis 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

Similar profitable businesses

Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from Full Accounts for the year to 27 Dec 2025 (profit £4.2m), from the Companies House accounts bulk data published Jun 2026. Spotted an error? Request a correction.

Updated from Companies House on 13 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.