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Semarion Ltd

11534992

active
ltd
england wales
Companies House
Health Score
80 / 100

Healthy

30/30
Filing
10/30
Financial
40/40
Risk
  • Current liabilities exceed current assets (-10)

Details

Salisbury House, Station Road, Cambridge, CB1 2LA
Incorporated 24/08/2018

Compliance

Last accounts

31/12/2025

total exemption full

Next accounts due

30/09/2027

On track

Confirmation statement

Last: 28/08/2025

Due 11/09/2026

On track

Industry

72190
Other research and experimental development on natural sciences and engineering

Officers

Professor Russell Paul Cowburn

director · Since 24/08/2018

CHIEF SCIENTIFIC ADVISOR

BRITISH · ENGLAND · Age 54

Also on 1 other board

Dr. Tarun Ravikiran Vemulkar

director · Since 24/08/2018

CHIEF TECHNOLOGY OFFICER

INDIAN · ENGLAND · Age 37

Mr Jeroen Jan Yvonne Verheyen

director · Since 24/08/2018

CHIEF EXECUTIVE

BELGIAN · ENGLAND · Age 40

Also on 1 other board

Mr Thomas Paul Wallace

director · Since 01/10/2020

BUSINESS EXECUTIVE

BRITISH · ENGLAND · Age 63

Also on 2 other boards

Dr Derek John Trezise

director · Since 24/11/2020

RESEARCH SCIENTIST

BRITISH · ENGLAND · Age 58

Also on 3 other boards

Parkwalk Advisors Ltd

director · Since 24/12/2021

Also on 44 other boards

Jeroen Jan Yvonne Verheyen

director · Since 24/08/2018

Belgian · England · Age 40

Russell Paul Cowburn

director · Since 24/08/2018

British · England · Age 54

Tarun Ravikiran Vemulkar

director · Since 24/08/2018

Indian · England · Age 37

Thomas Paul Wallace

director · Since 01/10/2020

British · England · Age 63

Derek John Trezise

director · Since 24/11/2020

British · England · Age 58

Parkwalk Advisors Ltd

corporate director · Since 24/12/2021

Reg: 06925696

Also on 44 other boards

Former

Fatima Kranc

director · Resigned 18/11/2024

Persons with Significant Control

Mnl (Parkwalk) Nominees Limited

25–50% shares
25–50% votes
Appoint directors

27 Furnival Street, London, EC4A 1JQ

Reg: 13166311 · England And Wales · Private Unlimited Company Without Share Capital

Notified 24/12/2021

Former PSCs

Dr. Tarun Ravikiran Vemulkar

Ceased 24/12/2021

Mr Jeroen Jan Yvonne Verheyen

Ceased 24/12/2021

Change History

statusactive
2026-06-18

Active

typeltd
2026-06-18

Private Limited Company

address line1Salisbury House
2026-06-18

SALISBURY HOUSE

post townCambridge
2026-06-18

CAMBRIDGE

CompanyRankvs 545+ SIC 72190 peers
81

Financial strength96th percentile among SIC peers · 24/25
Employees92th percentile among SIC peers · 14/15
LiquidityCurrent ratio 22.22× · 20/20
Longevity8 years trading (max 15) · 8/15
Filing complianceAll filings up to date · 15/15
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How is this score calculated?
Financial strength24/25 pts

Net worth compared to all companies in the same SIC code with published accounts. Top quartile earns the full 25 points.

Employees14/15 pts

Workforce size relative to sector peers from the most recent accounts. A larger team generally signals commercial scale.

Liquidity20/20 pts

Current assets ÷ current liabilities. A ratio above 2× earns full marks; between 1–2× scores partially; below 0.5× scores minimal points.

Longevity8/15 pts

One point per year of operation since incorporation, capped at 15. Older companies have a proven track record.

Filing compliance15/15 pts

Full 15 points when both annual accounts and confirmation statement are filed on time. Points are deducted for each overdue filing.

Maximum score is 100. Deductions apply for insolvency history, outstanding charges, going concern doubt, or disqualified officers.

Key FinancialsYear ending 31/12/2025

Net Worth

£1.9M

Balance sheet strength

Cash

£1.6M

Cash in the bank

Net Current Assets

£1.7M

Working capital

Current Assets

£1.8M

Current Liabilities

£81k

Fixed Assets

£173k

Debtors

£219k

Profit After Tax

-£617k

8avg. employees+1

Balance Sheet

Assets less current liabilities£1.9M
Prepared with Caseware UK (AP4) 2025.0.111

EstimatesDerived

YearCurrent RatioImplied Profit
202522.22+£1.4M
20247.98-£617k

Derived from filed accounts. Not audited figures.