Active08210010Private limited companyDarlington

UNDERWATER DRONE SYSTEMS LIMITED

Significant control: Tompkins Investments Limited (75–100%)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

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Registered activity: Other professional, scientific and technical activities n.e.c. (SIC 74909). We’re building product and service lists for UK companies. Get this one when it’s ready.

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01

Summary

Generated from filed data · no estimates

UNDERWATER DRONE SYSTEMS LIMITED is an active private limited company (company number 08210010) incorporated on 11 September 2012, registered in Darlington. Its registered activity is other professional, scientific and technical activities n.e.c. (SIC 74909). Latest small accounts cover the period ending 31 March 2025, with 0 employees on average.

There are 7,714 companies in other professional, scientific and technical activities n.e.c. in Other with filed accounts; the median reports net assets of £6,373 and is 12 years old.

02

Ownership and control

1 active · 1 other
  • Tompkins Investments Limited
    corporate entity, England · since 1 March 2019
    • owns 75–100% of shares
  • Mr Arthur Charles Tompkins
    Individual · since 6 April 2016 · ceased 1 March 2019
    • owns 75–100% of shares
    • holds 75–100% of voting rights

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.

03

Key dates

Incorporated
11 September 201214 yrs ago
Next accounts due
31 December 2026in 66 days
Confirmation statement due
25 September 2027in 334 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

04

Activity

SIC 74909
Other professional, scientific and technical activities n.e.c.
Accounts type
Total Exemption Full
Size band
MicroCompanies Act thresholds
05

Financials

2 periods on record · latest ending 31 March 2025
Net assets
Not reported
Cash at bank
Not reported
Turnover
Not reported
Employees
0
vs Mar 2024
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
31 March 2025——£40k£3,275——0
31 March 2024——£49k£6,474——0
Current ratio12.29Current assets ÷ creditors within one year

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.

06

Filing and accounts signals

Facts from the register · no rating
  • Current assets at least 1.5× creditors within one yearCurrent ratio 12.29
  • Incorporated five or more years agoIncorporated 11 September 2012

Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.

07

Timeline

Newest first
  1. Confirmation statement duein 334 days
  2. Next accounts duein 66 days
  3. Accounts period end
  4. Accounts period end
  5. Incorporated
08

Similar companies in the UK

Same activity (other professional, scientific and technical activities n.e.c.), closest in incorporation date
09

Reminders for UNDERWATER DRONE SYSTEMS LIMITED

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.

Source: Companies House register, snapshot 2026-08-31; accounts from the Companies House accounts data product. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown.