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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers 9
  • 1
    Mccarthy, Thomas David, Dr
    Born in June 1967
    Individual (12 offsprings)
    Officer
    2021-01-26 ~ now
    OF - Director → CIF 0
  • 2
    Joyce, Peter
    Company Director born in April 1982
    Individual (3 offsprings)
    Officer
    2021-01-26 ~ 2021-04-13
    OF - Director → CIF 0
  • 3
    Mccarthy, Kirsty Ann
    Company Director born in April 1964
    Individual (8 offsprings)
    Officer
    2021-01-26 ~ 2021-04-13
    OF - Director → CIF 0
  • 4
    Leung, Donmienne Doen Mun, Dr
    Born in September 1973
    Individual (1 offspring)
    Officer
    2025-03-11 ~ now
    OF - Director → CIF 0
  • 5
    Westcott, James
    Born in October 1974
    Individual (2 offsprings)
    Officer
    2021-06-29 ~ now
    OF - Director → CIF 0
  • 6
    Harris, Samantha Ann
    Individual (4 offsprings)
    Officer
    2022-06-22 ~ now
    OF - Secretary → CIF 0
  • 7
    Hughes, Stuart Wynn, Dr
    Ceo born in November 1970
    Individual (4 offsprings)
    Officer
    2021-01-26 ~ 2021-04-13
    OF - Director → CIF 0
  • 8
    Lonberg, Nils, Dr
    Born in March 1956
    Individual (1 offspring)
    Officer
    2021-05-28 ~ now
    OF - Director → CIF 0
  • 9
    Ahrens, Brenton Karl
    Born in March 1963
    Individual (3 offsprings)
    Officer
    2021-04-13 ~ now
    OF - Director → CIF 0
parent relation
Company in focus

THIRTYFIVEBIO LIMITED

Period: 2021-01-26 ~ now
Company number: 13157735
Registered name
THIRTYFIVEBIO LIMITED - now
Standard Industrial Classification
72110 - Research And Experimental Development On Biotechnology
Brief company account
Average Number of Employees
82024-01-01 ~ 2024-12-31
62023-01-01 ~ 2023-12-31
Property, Plant & Equipment
8,487 GBP2024-12-31
20,104 GBP2023-12-31
Fixed Assets - Investments
1 GBP2024-12-31
1 GBP2023-12-31
Fixed Assets
8,488 GBP2024-12-31
20,105 GBP2023-12-31
Debtors
Current
623,604 GBP2024-12-31
831,463 GBP2023-12-31
Cash at bank and in hand
353,078 GBP2024-12-31
1,956,838 GBP2023-12-31
Current Assets
976,682 GBP2024-12-31
2,788,301 GBP2023-12-31
Creditors
Current, Amounts falling due within one year
-996,839 GBP2024-12-31
Net Current Assets/Liabilities
-20,157 GBP2024-12-31
2,379,734 GBP2023-12-31
Net Assets/Liabilities
-11,669 GBP2024-12-31
2,399,839 GBP2023-12-31
Equity
Called up share capital
405 GBP2024-12-31
403 GBP2023-12-31
Share premium
14,638,172 GBP2024-12-31
14,638,172 GBP2023-12-31
Capital redemption reserve
-2 GBP2024-12-31
-2 GBP2023-12-31
Retained earnings (accumulated losses)
-14,650,244 GBP2024-12-31
-12,238,734 GBP2023-12-31
Equity
-11,669 GBP2024-12-31
2,399,839 GBP2023-12-31
Property, Plant & Equipment - Gross Cost
Office equipment
12,360 GBP2024-12-31
12,360 GBP2023-12-31
Computers
15,552 GBP2024-12-31
15,552 GBP2023-12-31
Other
20,403 GBP2024-12-31
20,403 GBP2023-12-31
Property, Plant & Equipment - Gross Cost
48,315 GBP2024-12-31
48,315 GBP2023-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
Office equipment
8,670 GBP2024-12-31
5,579 GBP2023-12-31
Computers
14,773 GBP2024-12-31
11,347 GBP2023-12-31
Other
16,385 GBP2024-12-31
11,285 GBP2023-12-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
39,828 GBP2024-12-31
28,211 GBP2023-12-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
Office equipment, Owned/Freehold
3,091 GBP2024-01-01 ~ 2024-12-31
Owned/Freehold
11,617 GBP2024-01-01 ~ 2024-12-31
Property, Plant & Equipment
Office equipment
3,690 GBP2024-12-31
6,781 GBP2023-12-31
Computers
779 GBP2024-12-31
4,205 GBP2023-12-31
Other
4,018 GBP2024-12-31
9,118 GBP2023-12-31
Other Debtors
Current
529,953 GBP2024-12-31
778,486 GBP2023-12-31
Prepayments/Accrued Income
Current
93,651 GBP2024-12-31
52,977 GBP2023-12-31
Other Remaining Borrowings
Current
579,063 GBP2024-12-31
Trade Creditors/Trade Payables
Current
116,834 GBP2024-12-31
311,972 GBP2023-12-31
Taxation/Social Security Payable
Current
34,508 GBP2024-12-31
64,095 GBP2023-12-31
Other Creditors
Current
2,508 GBP2024-12-31
3,662 GBP2023-12-31
Accrued Liabilities/Deferred Income
Current
263,926 GBP2024-12-31
28,838 GBP2023-12-31
Creditors
Current
996,839 GBP2024-12-31
408,567 GBP2023-12-31
Number of Shares Issued (Fully Paid)
Class 1 ordinary share
1,226,584 shares2024-12-31
1,218,416 shares2023-12-31
Par Value of Share
Class 1 ordinary share
0.00012024-01-01 ~ 2024-12-31
Number of Shares Issued (Fully Paid)
Class 2 ordinary share
2,816,900 shares2024-12-31
2,816,900 shares2023-12-31
Par Value of Share
Class 2 ordinary share
0.00012024-01-01 ~ 2024-12-31

Related profiles found in government register
  • THIRTYFIVEBIO LIMITED
    Info
    Registered number 13157735
    99 Park Drive, Milton, Abingdon OX14 4RY
    PRIVATE LIMITED COMPANY incorporated on 2021-01-26 (5 years 4 months). The status of the company number is Active.
    The last date of confirmation statement was made at 2026-01-25
    CIF 0
  • THIRTYFIVEBIO LIMITED
    S
    Registered number 13157735
    99, Park Drive, Milton, Abingdon, England, OX14 4RY
    Limited Liability Company in Registrar Of Companies For England And Wales, United Kingdom
    CIF 1
child relation
Offspring entities and appointments 1
  • 1
    TFBIO LIMITED
    13895159
    99 Park Drive, Milton, Abingdon, England
    Active Corporate (2 parents)
    Person with significant control
    2022-02-17 ~ now
    CIF 1 - Ownership of shares – 75% or more OE

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Contains public sector information retrieved at 22 April 2026 and licensed under the Open Government Licence v3.0.