# CALIBRATED GEOSCIENCE UK LTD. (11249840)

> CALIBRATED GEOSCIENCE UK LTD. is an active private limited company (company number 11249840) incorporated on 12 March 2018, registered in York. Its registered activity is support activities for petroleum and natural gas mining (SIC 09100). Latest small accounts cover the period ending 31 March 2025, showing net assets of £2,719 and cash of £26k, with 1 employee on average. Net assets fell 86% on the prior period (£19k).

- Status: Active
- Incorporated: 2018-03-12
- Registered office: York, YO19 5SL
- SIC 09100: Support activities for petroleum and natural gas mining
- Next accounts due: 2026-12-31
- Confirmation statement due: 2027-03-26
- Accounts type: TOTAL EXEMPTION FULL

By net assets it sits in the lower half of 420 comparable companies in Other (median £9,697, upper quartile £48k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-03-31 | £2,719 | £26k | £363 | £6,882 | — | — | 1 |
| 2024-03-31 | £19k | £37k | £7,307 | £5,469 | — | — | 1 |

current ratio 3.8; size band micro.

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

- Net assets above zero: Net assets £2,719 at 31 March 2025
- Net assets down 25% or more on the prior period: -85.7% vs prior period
- Current assets at least 1.5× creditors within one year: Current ratio 3.8
- Incorporated five or more years ago: Incorporated 12 March 2018

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

## Persons with significant control

- Dr Timothy James Stephen Sykes — owns 50–75% of shares; holds 50–75% of voting rights; can appoint or remove directors, since 2018-03-12
- Ms Anna Kathryn Porter — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors, since 2018-03-13

---
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/11249840
HTML: https://firmoscan.com/company/11249840-calibrated-geoscience-uk-ltd