£1
−50%vs Nov 2024Active15318546Private limited companyBrighouse
CALDER SCIENTIFIC LTD
Significant control: Prof Paul Nigel Humphreys (25–50%), Jeremy Desmond Hopwood (50–75%)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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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What does Calder Scientific Ltd sell?
Registered activity: Engineering related scientific and technical consulting activities (SIC 71122). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
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).
Peer position · net assets
By net assets it sits in the bottom quarter of 343 comparable companies in Leeds (median £4,622, upper quartile £38k).
02
Ownership and control
- Prof Paul Nigel Humphreys
- owns 25–50% of shares
- holds 25–50% of voting rights
- can appoint or remove directors
- Dr Jeremy Desmond Hopwood
- owns 50–75% of shares
- holds 50–75% of voting rights
- 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
- 30 November 20232 yrs ago
- Next accounts due
- 30 August 2027in 310 days
- Confirmation statement due
- 14 December 2026in 51 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- 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
- Accounts type
- Dormant
- Size band
- MicroCompanies Act thresholds
05
Financials
£1
Not reported the period beforeNot reported
Not reported
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 November 2025 | £1 | £1 | — | — | — | — | — |
| 30 November 2024 | £2 | — | — | — | — | — | — |
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets above zeroNet 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 agoIncorporated 30 November 2023
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 310 days
- Confirmation statement duein 51 days
- Accounts period endNet assets £1 · dormant accounts
- Accounts period endNet assets £2 · dormant accounts
- Incorporated
08
Similar companies in Leeds
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- BINARYPEARL LTDBatley · inc. Nov 2023
- CROWN CONSULTING LTDLeeds · inc. Dec 2023
All companies incorporated on 30 November 2023 · in Nov 2023.
09
Reminders for CALDER SCIENTIFIC LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.