# TET MARK ONE LIMITED (07173354)

> 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.

- Status: Active
- Incorporated: 2010-03-02
- Registered office: Doncaster, DN10 4DB
- SIC 72190: Other research and experimental development on natural sciences and engineering
- Next accounts due: 2027-06-30
- Confirmation statement due: 2027-03-16
- Accounts type: MICRO ENTITY

By net assets it sits in the bottom quarter of 52 comparable companies in Sheffield (median £100, upper quartile £98k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-09-30 | −£163k | — | — | — | — | — | 0 |
| 2024-09-30 | −£163k | — | — | — | — | — | — |

size band micro.

## Filing and accounts signals (facts, not a rating)

- Net assets below zero: Net assets £-163,348 at 30 September 2025
- Incorporated five or more years ago: Incorporated 2 March 2010

How each signal is derived: https://firmoscan.com/methodology

## Persons with significant control

- Alexander Grant — owns 25–50% of shares; can appoint or remove directors, since 2016-10-01

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Source: Companies House register snapshot 2026-08-31, Open Government Licence v3.0. Information may have changed since that date and is not advice or a credit reference; check the official record before relying on it. Official record: https://find-and-update.company-information.service.gov.uk/company/07173354
HTML: https://firmoscan.com/company/07173354-tet-mark-one-limited