# CALDER SCIENTIFIC LTD (15318546)

> CALDER SCIENTIFIC LTD is an active private limited company (company number 15318546) incorporated on 30 November 2023, registered in Brighouse. Its registered activity is engineering related scientific and technical consulting activities (SIC 71122). Latest dormant accounts cover the period ending 30 November 2025, showing net assets of £1 and cash of £1. Net assets fell 50% on the prior period (£2).

- Status: Active
- Incorporated: 2023-11-30
- Registered office: Brighouse, HD6 3SW
- SIC 71122: Engineering related scientific and technical consulting activities
- SIC 74909: Other professional, scientific and technical activities n.e.c.
- SIC 85600: Educational support services
- Next accounts due: 2027-08-30
- Confirmation statement due: 2026-12-14
- Accounts type: DORMANT

By net assets it sits in the bottom quarter of 343 comparable companies in Leeds (median £4,622, upper quartile £38k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-11-30 | £1 | £1 | — | — | — | — | — |
| 2024-11-30 | £2 | — | — | — | — | — | — |

size band micro.

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

- Net assets above zero: Net assets £1 at 30 November 2025
- Net assets down 25% or more on the prior period: -50.0% vs prior period
- Incorporated two to five years ago: Incorporated 30 November 2023

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

## Persons with significant control

- Prof Paul Nigel Humphreys — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors, since 2023-11-30
- Dr Jeremy Desmond Hopwood — owns 50–75% of shares; holds 50–75% of voting rights; can appoint or remove directors, since 2023-11-30

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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/15318546
HTML: https://firmoscan.com/company/15318546-calder-scientific-ltd