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
Active 5
  • 1
    Sykes, Timothy James
    Director born in December 1969
    Individual (19 offsprings)
    Officer
    2024-09-13 ~ now
    OF - Director → CIF 0
  • 2
    Bunka, David
    Chief Scientific Officer born in January 1978
    Individual (1 offspring)
    Officer
    2014-05-29 ~ now
    OF - Director → CIF 0
  • 3
    Hargreaves, Adam
    Non Executive Director born in November 1978
    Individual (3 offsprings)
    Officer
    2023-08-21 ~ now
    OF - Director → CIF 0
  • 4
    Rapson, Andrew Mark
    Accountant born in October 1981
    Individual (1 offspring)
    Officer
    2024-08-14 ~ now
    OF - Director → CIF 0
    Rapson, Andrew
    Individual (1 offspring)
    Officer
    2023-08-21 ~ now
    OF - Secretary → CIF 0
  • 5
    Tolley, Arron Craig, Dr
    Chief Executive Officer born in November 1977
    Individual (5 offsprings)
    Officer
    2023-08-21 ~ now
    OF - Director → CIF 0
Ceased 19
  • 1
    Richards, John David, Dr
    Director born in November 1956
    Individual
    Officer
    2021-06-01 ~ 2023-08-21
    OF - Director → CIF 0
  • 2
    Gilham, Ian David, Dr
    Chairman born in March 1960
    Individual (5 offsprings)
    Officer
    2021-12-22 ~ 2023-08-21
    OF - Director → CIF 0
  • 3
    Tolley, Melanie
    Director Of Operations born in August 1972
    Individual
    Officer
    2015-08-01 ~ 2015-11-10
    OF - Director → CIF 0
  • 4
    Fielding, Dean Andrew
    Non Executive Director born in October 1965
    Individual (9 offsprings)
    Officer
    2023-08-21 ~ 2024-08-14
    OF - Director → CIF 0
  • 5
    Warrington, Brian Herbert
    Director, Bb Consultants born in March 1942
    Individual (2 offsprings)
    Officer
    2015-08-18 ~ 2016-07-13
    OF - Director → CIF 0
  • 6
    Vaux, Mark
    Chief Operating Officer born in September 1963
    Individual (2 offsprings)
    Officer
    2021-02-02 ~ 2021-07-23
    OF - Director → CIF 0
  • 7
    Brown, Eleanor
    Chief Financial Officer born in January 1975
    Individual
    Officer
    2020-10-13 ~ 2022-06-13
    OF - Director → CIF 0
    Brown, Eleanor
    Individual
    Officer
    2021-12-08 ~ 2022-06-13
    OF - Secretary → CIF 0
  • 8
    Skinn, Andrew Jonathan
    Independent Business Consultant born in September 1960
    Individual (3 offsprings)
    Officer
    2015-08-18 ~ 2021-12-15
    OF - Director → CIF 0
  • 9
    Van Dalen, Frans, Dr Ing
    Pharmacist born in December 1959
    Individual
    Officer
    2018-05-30 ~ 2021-12-15
    OF - Director → CIF 0
  • 10
    Clark, Jordan
    Chief Commercial Officer born in July 1984
    Individual
    Officer
    2021-06-08 ~ 2021-10-12
    OF - Director → CIF 0
  • 11
    Lelieveld, Paul Govert Michael, Ir.
    Director born in June 1967
    Individual
    Officer
    2018-05-30 ~ 2020-04-07
    OF - Director → CIF 0
  • 12
    Hildreth, Angela
    Non Executive Director born in January 1980
    Individual (8 offsprings)
    Officer
    2021-12-22 ~ 2023-08-21
    OF - Director → CIF 0
  • 13
    Hull, Stephen
    Company Director born in October 1953
    Individual (28 offsprings)
    Officer
    2015-08-18 ~ 2021-12-15
    OF - Director → CIF 0
    Hull, Stephen
    Executive Chairman born in October 1953
    Individual (28 offsprings)
    2023-08-21 ~ 2024-08-14
    OF - Director → CIF 0
  • 14
    Oury, James Edward
    Solicitor born in October 1968
    Individual (23 offsprings)
    Officer
    2015-08-18 ~ 2016-07-15
    OF - Director → CIF 0
  • 15
    Cutler, Jennifer Louise
    Individual
    Officer
    2022-06-23 ~ 2023-03-01
    OF - Secretary → CIF 0
  • 16
    Tolley, Arron Craig, Dr
    Chief Executive Officer born in November 1977
    Individual (5 offsprings)
    Officer
    2014-05-29 ~ 2023-05-16
    OF - Director → CIF 0
    Dr Arron Craig Tolley
    Born in November 1977
    Individual (5 offsprings)
    Person with significant control
    2016-05-30 ~ 2021-12-22
    PE - Ownership of shares – More than 25% but not more than 50% → CIF 0
  • 17
    Townsend, Paul, Professor
    Research Professor And Scientist born in May 1972
    Individual (1 offspring)
    Officer
    2015-08-18 ~ 2021-12-15
    OF - Director → CIF 0
  • 18
    Armstrong, Paul Benedict
    Business Director born in April 1966
    Individual (2 offsprings)
    Officer
    2017-12-10 ~ 2021-02-02
    OF - Director → CIF 0
  • 19
    Quinn, Robert, Dr
    Company Director born in September 1982
    Individual
    Officer
    2023-03-01 ~ 2023-08-21
    OF - Director → CIF 0
    Quinn, Robert, Dr
    Individual
    Officer
    2023-03-01 ~ 2023-08-21
    OF - Secretary → CIF 0
parent relation
Company in focus

APTAMER GROUP PLC

Previous names
APTAMER GROUP LIMITED - 2021-12-08
BLUEBIRD 123 LIMITED - 2015-04-20
Standard Industrial Classification
72110 - Research And Experimental Development On Biotechnology
Brief company account
Please be reminded the displayed account data is older than 4 years hence might not reflect current company status.
Property, Plant & Equipment
36,651 GBP2020-03-31
28,224 GBP2019-03-31
Fixed Assets - Investments
418,011 GBP2020-03-31
418,011 GBP2019-03-31
Fixed Assets
454,662 GBP2020-03-31
446,235 GBP2019-03-31
Debtors
1,783,672 GBP2020-03-31
1,556,163 GBP2019-03-31
Cash at bank and in hand
64,186 GBP2020-03-31
239,402 GBP2019-03-31
Current Assets
1,847,858 GBP2020-03-31
1,795,565 GBP2019-03-31
Net Current Assets/Liabilities
1,626,680 GBP2020-03-31
1,682,228 GBP2019-03-31
Total Assets Less Current Liabilities
2,081,342 GBP2020-03-31
2,128,463 GBP2019-03-31
Creditors
Non-current, Amounts falling due after one year
-1,044 GBP2020-03-31
Net Assets/Liabilities
2,080,298 GBP2020-03-31
2,128,463 GBP2019-03-31
Equity
Called up share capital
28,152 GBP2020-03-31
28,152 GBP2019-03-31
17,854 GBP2018-03-31
Share premium
3,088,923 GBP2020-03-31
3,088,923 GBP2019-03-31
1,544,116 GBP2018-03-31
Retained earnings (accumulated losses)
-1,081,065 GBP2020-03-31
-988,612 GBP2019-03-31
-633,586 GBP2018-03-31
Equity
2,080,298 GBP2020-03-31
2,128,463 GBP2019-03-31
928,384 GBP2018-03-31
Comprehensive Income/Expense
Retained earnings (accumulated losses)
-92,453 GBP2019-04-01 ~ 2020-03-31
-355,026 GBP2018-04-01 ~ 2019-03-31
Comprehensive Income/Expense
-48,165 GBP2019-04-01 ~ 2020-03-31
-355,026 GBP2018-04-01 ~ 2019-03-31
Equity
Other miscellaneous reserve
44,288 GBP2020-03-31
Profit/Loss
Retained earnings (accumulated losses)
-355,026 GBP2018-04-01 ~ 2019-03-31
Profit/Loss
-355,026 GBP2018-04-01 ~ 2019-03-31
Issue of Equity Instruments
Called up share capital
10,298 GBP2018-04-01 ~ 2019-03-31
Issue of Equity Instruments
1,555,105 GBP2018-04-01 ~ 2019-03-31
Average Number of Employees
262019-04-01 ~ 2020-03-31
192018-04-01 ~ 2019-03-31
Property, Plant & Equipment - Gross Cost
Tools/Equipment for furniture and fittings
7,594 GBP2020-03-31
5,501 GBP2019-03-31
Other
59,000 GBP2020-03-31
39,854 GBP2019-03-31
Property, Plant & Equipment - Gross Cost
66,594 GBP2020-03-31
45,355 GBP2019-03-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
Tools/Equipment for furniture and fittings
1,714 GBP2020-03-31
569 GBP2019-03-31
Other
28,229 GBP2020-03-31
16,562 GBP2019-03-31
Property, Plant & Equipment - Accumulated Depreciation & Impairment
29,943 GBP2020-03-31
17,131 GBP2019-03-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
Tools/Equipment for furniture and fittings
1,145 GBP2019-04-01 ~ 2020-03-31
Other
11,667 GBP2019-04-01 ~ 2020-03-31
Property, Plant & Equipment - Increase From Depreciation Charge for Year
12,812 GBP2019-04-01 ~ 2020-03-31
Property, Plant & Equipment
Tools/Equipment for furniture and fittings
5,880 GBP2020-03-31
4,932 GBP2019-03-31
Other
30,771 GBP2020-03-31
23,292 GBP2019-03-31
Investments in Subsidiaries
418,011 GBP2020-03-31
418,011 GBP2019-03-31
Cost valuation
418,011 GBP2019-03-31
Amounts Owed By Related Parties
1,753,346 GBP2020-03-31
1,513,767 GBP2019-03-31
Other Debtors
21,231 GBP2020-03-31
16,323 GBP2019-03-31
Debtors
Current
1,783,672 GBP2020-03-31
1,556,163 GBP2019-03-31
Total Borrowings
Current, Amounts falling due within one year
1,582 GBP2020-03-31
Trade Creditors/Trade Payables
56,464 GBP2020-03-31
18,496 GBP2019-03-31
Taxation/Social Security Payable
116,591 GBP2020-03-31
78,671 GBP2019-03-31
Other Creditors
7,073 GBP2020-03-31
4,966 GBP2019-03-31
Total Borrowings
Non-current, Amounts falling due after one year
1,044 GBP2020-03-31
Future Minimum Lease Payments Under Non-cancellable Operating Leases
Amounts falling due within one year
89,519 GBP2020-03-31
60,075 GBP2019-03-31
Between two and five year
4,740 GBP2020-03-31
2,520 GBP2019-03-31
Future Minimum Lease Payments Under Non-cancellable Operating Leases
94,259 GBP2020-03-31
62,595 GBP2019-03-31
Related profiles found in government register
  • APTAMER GROUP PLC
    Info
    APTAMER GROUP LIMITED - 2021-12-08
    BLUEBIRD 123 LIMITED - 2015-04-20
    Registered number 09061413
    Windmill House, Innovation Way, York YO10 5BR
    Public Limited Company incorporated on 2014-05-29 (11 years 1 month). The company status is Active.
    The last date of confirmation statement was made at 2024-05-29
    CIF 0
  • APTAMER GROUP PLC
    S
    Registered number 9061413
    Bio Centre, Aptamer Group, Suite 2.80 - 2.87, Bio Centre, Innovation Way, Heslington, York, North Yorkshire, United Kingdom, YO10 5NY
    Public Limited Company in Companies House, England And Wales, England
    CIF 1
  • APTAMER GROUP PLC
    S
    Registered number 09061413
    Second Floor Bio Centre, Innovation Way, Heslington, York, England, YO10 5NY
    Company in England And Wales Register Of Companies, England
    CIF 2
  • APTAMER GROUP PLC
    S
    Registered number 09061413
    Windmill House, Innovation Way, York, England, YO10 5BR
    Private Company Limited By Shares in Companies House England And Wales, England
    CIF 3
(more)
child relation
Offspring entities and appointments
Active 4
  • 1
    APTAMER SOLUTIONS LIMITED - 2012-05-03
    Windmill House, Innovation Way, York, England
    Active Corporate (3 parents)
    Equity (Company account)
    -845,260 GBP2024-06-30
    Person with significant control
    2018-05-17 ~ now
    CIF 2 - Ownership of shares – 75% or more → OE
  • 2
    APTAMER DIAGNOSTICS LIMITED - 2012-05-03
    Windmill House, Innovation Way, York, England
    Active Corporate (3 parents)
    Equity (Company account)
    147,570 GBP2024-06-30
    Person with significant control
    2017-04-11 ~ now
    CIF 1 - Ownership of shares – 75% or more → OE
  • 3
    APTASORT LIMITED - 2019-05-25
    Windmill House, Innovation Way, York, England
    Active Corporate (3 parents)
    Equity (Company account)
    -313,841 GBP2024-06-30
    Person with significant control
    2016-04-06 ~ now
    CIF 4 - Ownership of shares – 75% or more → OE
  • 4
    APTAMER THERAPEUTICS LIMITED - 2019-05-25
    Windmill House, Innovation Way, York, England
    Active Corporate (3 parents)
    Equity (Company account)
    -81,591 GBP2024-06-30
    Person with significant control
    2016-04-06 ~ now
    CIF 3 - Ownership of shares – 75% or more → OE

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Contains public sector information retrieved at 24 April 2025 and licensed under the Open Government Licence v3.0.