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QBYSS LTD

Active
11963576·incorporated 2019-04-25

QBYSS LTD is an active UK private limited company, incorporated on 25 April 2019 at Companies House (number 11963576; OpenRegistry canonical ID GB-11963576-qbyss-ltd). 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 1,093,852 active companies registered in London (postcode WC2B). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Status
Active
Type
Private Limited Company
Incorporated
2019-04-25
Registered Address
16 GREAT QUEEN STREET, COVENT GARDEN, LONDON, WC2B 5AH, UNITED KINGDOM
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 2025-09-30. Next accounts due 2027-06-30. Financial year-end: 30/09. Filing class: SMALL.

Confirmation statement

Last confirmation statement made up to 2025-10-05. Next confirmation statement due 2026-10-19.

Persons with significant control

QBYSS LTD has 2 persons with significant control on file:

  • Mr Lee Harrison born 1964 resident in United Kingdom, British national. Notified 2020-02-17.
    • Owns 25–50% of shares
    • Holds 25–50% of voting rights
  • Mr Sebastian Kulczyk born 1980 resident in Switzerland, Polish national. Notified 2021-10-28.
    • Owns 50–75% of shares
    • Holds 50–75% of voting rights

3 historical PSC records have ceased:

  • Mr Sebastian Kulczyk born 1980 resident in Switzerland, Polish national. Notified 2021-10-28. Ceased 2023-11-07.
    • Owns 25–50% of shares
    • Holds 25–50% of voting rights
  • Mr Vanja Baros born 1975 resident in England, British national. Notified 2019-04-25. Ceased 2020-02-17.
    • Owns 25–50% of shares
    • Holds 25–50% of voting rights
    • Has the right to appoint and remove directors
  • Mr James Ronald Hersov born 1964 resident in United Kingdom, British national. Notified 2019-04-25. Ceased 2020-02-17.
    • Owns 25–50% of shares
    • Holds 25–50% of voting rights
    • Has the right to appoint and remove directors

Previous names

QBYSS LTD has previously traded as:

  • ENERGY RESEARCH LAB LTD (until 2024-11-20)
  • ADVANCED ENERGY RESEARCH LTD (until 2020-03-04)

Similar UK companies

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

Other companies registered in London:

Need real-time profile, officers, shareholders, financials or filing? Open the live profile at /company/gb/11963576.

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