Onyx Clinical Limited company overview
Onyx Clinical Limited is a private limited company registered with company number 01249401. It was incorporated on 17 Mar 1976 and its current status is active.
The registered office is at 210 Pentonville Road, London, N1 9JY. The company has 3 active officers. It was previously called Blackleigh (Soothill) Limited and 1 other name.
Onyx Clinical Limited upcoming deadlines
Year end accounts
Due 30 Sep 2027
Confirmation statement
Due 13 Apr 2027
Corporation tax payment
Due 1 Oct 2027
Dates are the ones Companies House holds for this company. Late accounts trigger automatic Companies House penalties starting at £150, and HMRC charges interest on late corporation tax.
Onyx Clinical Limited at a glance
50 years
Trading age
18,504 days since incorporation
3
Active officers
David, Catherine, Caroline
142
Filings on record
Latest: 21 Sep 2026
100/100
Filing health score
Accounts and statement up to date
Directors of Onyx Clinical Limited
Former officers
12 more officers are on the register. See all on Companies House
Nature of business (SIC codes)
99999
Dormant Company
Allowable expenses for Onyx Clinical Limited
Based on Onyx Clinical Limited's SIC code (99999), these are typical tax-deductible expenses for a general business company. Claiming them lowers the profit you pay corporation tax on.
Vehicle & mileage
45p a mile for the first 10,000 business miles in a personal car.
Staff & director salaries
Wages, employer NI and pension contributions paid through PAYE.
Accountancy & legal fees
Bookkeeping, year-end accounts, tax advice and company secretarial costs.
Business insurance
Public liability, professional indemnity and employer's liability cover.
Phone & internet
Business mobile contracts, broadband and a share of home internet.
General guidance only — every expense must be wholly and exclusively for business. Ask an accountant
Tax guide for businesses like Onyx Clinical Limited
How much tax does a limited company pay?
UK companies pay corporation tax at 19% on profits up to £50,000, rising to 25% above £250,000, with marginal relief in between. Claiming every allowable expense reduces taxable profit.
Does a company like Onyx Clinical Limited need to register for VAT?
VAT registration is compulsory once taxable turnover passes £90,000 in any rolling 12 months. Many businesses register voluntarily to reclaim VAT on costs.
How much does an accountant cost for a limited company in London?
Fixed-fee accountants typically charge £60–£200 a month for a small limited company, covering year-end accounts, corporation tax and the confirmation statement.
Can directors of Onyx Clinical Limited pay themselves in dividends?
Most small company directors take a low salary plus dividends. Dividends are paid from profits after corporation tax, with an annual £500 dividend allowance.
Filing history
21 Sep 2026 · AA
Dormant accounts made up to 31 Dec 2025
1 Apr 2026 · CS01
Confirmation statement made on 30 Mar 2026 with no updates
31 Oct 2025 · AP01
Appointment of Ms Caroline Garrett as a director on 31 Oct 2025
31 Oct 2025 · AP03
Appointment of Ms Catherine Anne Youthed as a secretary on 31 Oct 2025
31 Oct 2025 · TM02
Termination of appointment of Celia Rosalind Gough as a secretary on 31 Oct 2025
31 Oct 2025 · TM01
Termination of appointment of Celia Rosalind Gough as a director on 31 Oct 2025
17 Jun 2025 · AA
Dormant accounts made up to 31 Dec 2024
31 Mar 2025 · CS01
Confirmation statement made on 30 Mar 2025 with no updates
29 Jan 2025 · CH01
Director's details changed for Miss Celia Rosalind Gough on 28 Jan 2025
28 Jan 2025 · CH01
Director's details changed for Mr David Price on 28 Jan 2025
27 Sep 2024 · AA
Dormant accounts made up to 31 Dec 2023
2 Apr 2024 · CS01
Confirmation statement made on 30 Mar 2024 with no updates
3 Oct 2023 · AA
Dormant accounts made up to 31 Dec 2022
31 Mar 2023 · CS01
Confirmation statement made on 30 Mar 2023 with updates
31 Mar 2023 · PSC05
Change to a person with significant control
8 Apr 2022 · CS01
Confirmation statement made on 30 Mar 2022 with no updates
31 Mar 2022 · AA
Dormant accounts made up to 31 Dec 2021
2 Dec 2021 · AP03
Appointment of Miss Celia Rosalind Gough as a secretary on 1 Dec 2021
2 Dec 2021 · TM02
Termination of appointment of Elaine Margaret Aitken as a secretary on 30 Nov 2021
1 Jul 2021 · TM01
Termination of appointment of David Andrew Gerrard as a director on 30 Jun 2021
Showing the latest 20 of 142 filings. See the full history on Companies House
Accounting services for Onyx Clinical Limited
From tax to payroll, find accountants who look after every part of Onyx Clinical Limited’s finances.
Year-end accounts
Statutory accounts prepared and filed with Companies House on time, every year.
Corporation tax
CT600 returns filed with HMRC and tax planned so you only pay what you owe.
Payroll
Pay your team on time every month, with RTI submissions and pensions handled.
VAT & bookkeeping
Keep your books tidy and your VAT returns MTD-ready all year round.
Confirmation statement
Your annual confirmation statement checked and filed before the deadline.
Management accounts
Monthly or quarterly reports so you can see how the business is really doing.
More about Onyx Clinical Limited
About Onyx Clinical Limited
Onyx Clinical Limited is a UK private limited company based in London, registered at Companies House as company number 01249401 since 17 Mar 1976. Its listed activities include dormant company. This page brings together its public record — directors, registered office, nature of business and filing history — in one easy place.
Onyx Clinical Limited filings and compliance
Every UK limited company must file annual accounts, a confirmation statement and a corporation tax return each year. Onyx Clinical Limited has 142 filings on record. Keeping on top of these deadlines avoids automatic penalties from Companies House and HMRC, which start at £150 for late accounts.
Looking for an accountant in London?
Businesses like Onyx Clinical Limited often use a local accountant for year-end accounts, corporation tax, VAT and payroll. Compare fixed-fee, regulated accountants near London and get free quotes in minutes.
This page shows public information from Companies House. Director of Onyx Clinical Limited?
Onyx Clinical Limited – frequently asked questions
What is the company number of Onyx Clinical Limited?
Onyx Clinical Limited is registered at Companies House under company number 01249401.
When was Onyx Clinical Limited incorporated?
Onyx Clinical Limited was incorporated on 17 Mar 1976 as a private limited company.
Who are the directors of Onyx Clinical Limited?
Current officers are David Lester Price (director), Catherine Anne Youthed (secretary) and Caroline Garrett (director).
What does Onyx Clinical Limited do?
The company's registered nature of business (SIC) is 99999 – Dormant Company.
Where is Onyx Clinical Limited registered?
The registered office address is 210 Pentonville Road, London, N1 9JY.
Is Onyx Clinical Limited still trading?
According to its latest Companies House record the company status is active. Its most recent filing was dormant accounts made up to 31 Dec 2025 on 21 Sep 2026.