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QUANTUM MATERIALS

Active
08692352·incorporated 2013-09-16

QUANTUM MATERIALS is an active UK pri/lbg/nsc (private, limited by guarantee, no share capital, use of 'limited' exemption), incorporated on 16 September 2013 at Companies House (number 08692352; OpenRegistry canonical ID GB-08692352-quantum-materials). Sophymarine's OpenRegistry classifies it under SIC 72190 (Other research and experimental development on natural sciences and engineering), one of 5,871 active UK entities in that code and one of 2 active companies registered in Grantchester, Cambridgeshire (postcode CB3). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Status
Active
Type
PRI/LBG/NSC (Private, Limited by guarantee, no share capital, use of 'Limited' exemption)
Incorporated
2013-09-16
Registered Address
63 HIGH STREET, GRANTCHESTER, CAMBRIDGESHIRE, CB3 9NF
SIC
72190 — Other research and experimental development on natural sciences and engineering
Country of origin
United Kingdom

Directors

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Shareholders

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Financials

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Filings

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Accounts

Last filed accounts made up to 2024-09-30. Next accounts due 2026-06-30. Financial year-end: 30/09. Filing class: MICRO ENTITY.

Confirmation statement

Last confirmation statement made up to 2026-03-23. Next confirmation statement due 2027-04-06.

Persons with significant control

QUANTUM MATERIALS has 2 persons with significant control on file:

  • Mr Douglas Walter George Calder born 1939 resident in Cayman Islands, British national. Notified 2026-03-01.
    • Owns 25–50% of shares
  • Mrs Deborah June Calder born 1948 resident in Cayman Islands, British national. Notified 2026-03-01.
    • Owns 25–50% of shares

2 historical PSC records have ceased:

  • Dr John Tully born 1984 resident in United States, British national. Notified 2016-08-30. Ceased 2025-11-11.
    • Has significant influence or control
  • Auriel Limited (Cayman Islands reg. 270073). Notified 2025-11-11. Ceased 2026-03-01.
    • Owns 75% or more of shares

Similar UK companies

Other companies registered under SIC 72190 (Other research and experimental development on natural sciences and engineering):

Other companies registered in Grantchester:

Need real-time profile, officers, shareholders, financials or filing? Open the live profile at /company/gb/08692352.

Source: Companies House Free Company Data, refreshed 2026-05-01. Official record: find-and-update.company-information.service.gov.uk.