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Company · Addlestone

Quethera Limited

Research and experimental development on biotechnology

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Official record Companies House · updated 27th September 2026 · Sources

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The large node is Quethera Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 15

  1. Stephen Andrew Hall 2025-2025 Director View profile
  2. Dr Alan Mcdougall 2022-2025 Director View profile
  3. Taiji Sawamoto 2022-2025 Director View profile
  4. Adam John Pearson 2020-2022 Director View profile
  5. Natalie Louise Seddon 2020-2025 Director View profile
  6. Masaaki Hirano 2018-2020 Director View profile
  7. Yuichi Tomura 2018-2022 Director View profile
  8. Timothy Philip Jonsson 2018-2020 Director View profile
  9. Dr Anne Michelle Dobree 2018-2018 Director View profile
  10. Dr David Mark Anthony Holbrook 2017-2018 Director View profile
  11. Piers John Morgan 2016-2018 Director View profile
  12. Peter Oliver Wharton Sexton 2015-2018 Director View profile
  13. Bradley William Hardiman 2015-2017 Director View profile
  14. Professor Keith Robert Martin 2015-2018 Director View profile
  15. Peter Stuart Widdowson 2013-2018 Director View profile

Directors and secretaries as filed at Companies House.

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About

What it does
Research and experimental development on biotechnology
Incorporated
19/03/2013
Registered office
Addlestone

Ownership

Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.

Group

  1. Quethera Limited is controlled by Peter Stuart Widdowson
    Evidence
    ceased 25-50% shares, 25-50% voting · notified 2016-04-06, ceased 2018-08-10 · source: Companies House PSC register

Ultimately controlled by Peter Stuart Widdowson.

1 other company in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

3 directors on the board

0.9y median 1.1y
average tenure
1.1y
longest tenure
0
directors past 6 years

First-time vs portfolio directors

First-time (1)

Portfolio (2)

0
also govern a charity

Left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Retail and trade 2Professional services 1

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
08450540
Status
Active
Type
Private Limited Company
Accounts next due
31/12/2027
Edition
Register edition compiled 27th September 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

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