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Sentinel Photonics Limited

12163852

active
ltd
england wales
Companies House
Health Score
68 / 100

Some Concerns

30/30
Filing
0/30
Financial
38/40
Risk
  • Negative net worth (-10)
  • Current liabilities exceed current assets (-10)
  • 1 outstanding charge (-2)

Details

Porton Science Park, Bybrook Road, Porton Down, SP4 0BF
Incorporated 19/08/2019

Compliance

Last accounts

31/12/2025

total exemption full

Next accounts due

30/09/2027

On track

Confirmation statement

Last: 02/06/2025

Due 16/06/2026

On track

Industry

32990
Other manufacturing
72190
Other research and experimental development on natural sciences and engineering

Officers

Ms Henrietta Rosamund Clare Barkworth-Nanton

director · Since 15/02/2021

CEO

BRITISH · UNITED KINGDOM · Age 59

Also on 1 other board

Dr Christopher David Burgess

director · Since 05/05/2021

CHIEF EXECUTIVE OFFICER

BRITISH · UNITED KINGDOM · Age 43

Sean Michael Tsi-Ong Tipper

director · Since 13/12/2021

CHIEF TECHNOLOGY OFFICER

BRITISH · UNITED KINGDOM · Age 32

Mr Jonathan Blanshay

director · Since 28/04/2026

CANADIAN · CANAD · Age 58

Henrietta Rosamund Clare Barkworth-Nanton

director · Since 15/02/2021

British · United Kingdom · Age 59

Christopher David Burgess

director · Since 05/05/2021

British · United Kingdom · Age 43

Sean Michael Tsi-Ong Tipper

director · Since 13/12/2021

British · United Kingdom · Age 32

Jonathan Blanshay

director · Since 28/04/2026

Canadian · Canada · Age 58

Former

James Michael Kirby

director · Resigned 21/05/2020

Stephen John Paul Callister

director · Resigned 11/02/2021

Robin James Williamson

director · Resigned 23/09/2021

Gordon Paul Scott

director · Resigned 28/04/2026

Persons with Significant Control

Sean Michael Tsi-Ong Tipper

25–50% votes

British · United Kingdom · Age 32

Porton Science Park, Bybrook Road, Porton Down, SP4 0BF

Notified 13/12/2021

Dr Christopher David Burgess

25–50% votes

British · United Kingdom · Age 43

Porton Science Park, Bybrook Road, Porton Down, SP4 0BF

Notified 13/12/2021

Former PSCs

Ploughshare Innovations Ltd

Ceased 13/12/2021

Ploughshare Innovations Ltd

Ceased 28/04/2026

Charges1 outstanding

Charge
outstanding

INNOVATE UK LOANS LIMITED

Created 22/08/2022Registered 06/09/2022

Change History

statusactive
2026-06-15

Active

typeltd
2026-06-15

Private Limited Company

address line1Porton Science Park
2026-06-15

PORTON SCIENCE PARK

post townPorton Down
2026-06-15

PORTON DOWN

officer appointedBARKWORTH-NANTON, Henrietta Rosamund Clare
2026-06-15
officer appointedBLANSHAY, Jonathan
2026-06-15
officer appointedBURGESS, Christopher David, Dr
2026-06-15
officer appointedTIPPER, Sean Michael Tsi-Ong
2026-06-15

CompanyRankvs 11112+ SIC 32990 peers
32

Financial strength1th percentile among SIC peers · 0/25
Employees90th percentile among SIC peers · 14/15
LiquidityCurrent ratio 0.6× · 6/20
Longevity7 years trading (max 15) · 7/15
Filing complianceAll filings up to date · 15/15
Outstanding charges -10
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How is this score calculated?
Financial strength0/25 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.

Liquidity6/20 pts

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

Longevity7/15 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.

Risk deductions

Outstanding charges: -10 pts

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

Key FinancialsYear ending 31/12/2024

Net Worth

-£1.1M

Balance sheet strength

Cash

£557k

Cash in the bank

Net Current Assets

-£751k

Working capital

Current Assets

£1.1M

Current Liabilities

£1.9M

Fixed Assets

£102k

Debtors

£208k

17avg. employees+5

Tax at Year End(2023)

VAT-£27k

Balance Sheet

Intangible assets£27k
Assets less current liabilities-£648k
Prepared with VT Final Accounts

EstimatesDerived

YearCurrent RatioImplied ProfitEst. Revenue
20240.60-£969k
20243.92-£409k
20236.78+£125k
20221.73+£117k£711k
2021£208k

Derived from filed accounts. Not audited figures.