−£163k
vs Sept 2024Active07173354Private limited companyDoncaster
TET MARK ONE LIMITED
Significant control: Alexander Grant (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
Watch this company
Get an email when Companies House records a change for Tet Mark One Limited: status, filings, accounts, officers or owners. Free.
Not live yet: alerts start by 15 December 2026. We store your email and this company number only, for these alerts. If alerts don’t launch, we tell you and delete your address. Privacy
Coming soon · product and service lists
What does Tet Mark One Limited sell?
Registered activity: Other research and experimental development on natural sciences and engineering (SIC 72190). We’re building product and service lists for UK companies. Get this one when it’s ready.
One email, only about this. If we don’t launch within 60 days we’ll tell you. Privacy
01
Summary
TET MARK ONE LIMITED is an active private limited company (company number 07173354) incorporated on 2 March 2010, registered in Doncaster. Its registered activity is other research and experimental development on natural sciences and engineering (SIC 72190). Latest micro accounts cover the period ending 30 September 2025, showing net assets of −£163k, with 0 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets were unchanged on the prior period.
Peer position · net assets
By net assets it sits in the bottom quarter of 52 comparable companies in Sheffield (median £100, upper quartile £98k).
02
Ownership and control
- Alexander Grant
- owns 25–50% of shares
- can appoint or remove directors
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
- 2 March 201016 yrs ago
- Next accounts due
- 30 June 2027in 248 days
- Confirmation statement due
- 16 March 2027in 142 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 72190
- Other research and experimental development on natural sciences and engineering
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
0
Not reported the period before| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 September 2025 | −£163k | — | — | — | — | — | 0 |
| 30 September 2024 | −£163k | — | — | — | — | — | — |
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
06
Filing and accounts signals
- Net assets below zeroNet assets £-163,348 at 30 September 2025
- Incorporated five or more years agoIncorporated 2 March 2010
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
- Next accounts duein 248 days
- Confirmation statement duein 142 days
- Accounts period endNet liabilities £163k · micro accounts
- Accounts period endNet liabilities £163k · micro accounts
- Incorporated
08
Similar companies in Sheffield
- CRG RESEARCH & DEVELOPMENT LIMITEDGrimsby · inc. Mar 2010
- HARTLETT AXLE SYSTEMS LIMITEDSheffield · inc. Apr 2010
- HEL EAST LTDGrimsby · inc. Jun 2010
- PERLEMAX LIMITEDSheffield · inc. Sept 2010
- ALEKSANDRIA SCIENCES LIMITEDChesterfield · inc. Jan 2011
- IGENE LONDON LIMITEDLeopold Street · inc. Mar 2011
All companies incorporated on 2 March 2010 · in Mar 2010.
09
Reminders for TET MARK ONE LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.