Company number
OC402096
THORNHILL & CO. LLP
Active
✓ Active company on the official register. Next accounts due 31 December 2026.
Company details
- Registered name
- THORNHILL & CO. LLP
- Company number
- OC402096
- Registered office
- 28 SPENCER AVENUE YARNTON, KIDLINGTON, OXFORD, OXON, OX5 1NG · 5 other companies at this postcode
- Company type
- Limited Liability Partnership
- Incorporated on
- 3 October 2015
- Status
- Active
- Age
- 10 years
- Previous names
- AMPERSANDESIGN LLP (to 14 Dec 2023)
- Accounts — next due
- 31 Dec 2026
- Accounts — last made up to
- 31 Mar 2025
- Confirmation statement — next due
- 16 Oct 2026
- Confirmation statement — last
- 02 Oct 2025
People with significant control
Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors
Mr Dave Thornhill
voting rights 25 to 50 percent limited liability partnership · voting rights 25 to 50 percent as trust limited liability partnership · voting rights 25 to 50 percent as firm limited liability partnership · significant influence or control limited liability partnership · significant influence or control as trust limited liability partnership · significant influence or control as firm limited liability partnership · right to share surplus assets 25 to 50 percent limited liability partnership · right to share surplus assets 25 to 50 percent as trust limited liability partnership · right to share surplus assets 25 to 50 percent as firm limited liability partnership · right to appoint and remove members limited liability partnership · right to appoint and remove members as trust limited liability partnership · right to appoint and remove members as firm limited liability partnership
Mrs Shireen Dew
voting rights 25 to 50 percent limited liability partnership · voting rights 25 to 50 percent as trust limited liability partnership · voting rights 25 to 50 percent as firm limited liability partnership · significant influence or control limited liability partnership · significant influence or control as trust limited liability partnership · significant influence or control as firm limited liability partnership · right to share surplus assets 25 to 50 percent limited liability partnership · right to share surplus assets 25 to 50 percent as trust limited liability partnership · right to share surplus assets 25 to 50 percent as firm limited liability partnership · right to appoint and remove members limited liability partnership · right to appoint and remove members as trust limited liability partnership · right to appoint and remove members as firm limited liability partnership
Ms Sarah Louise Ablett
voting rights 25 to 50 percent limited liability partnership · voting rights 25 to 50 percent as firm limited liability partnership · right to share surplus assets 25 to 50 percent limited liability partnership · right to share surplus assets 25 to 50 percent as trust limited liability partnership · right to share surplus assets 25 to 50 percent as firm limited liability partnership
Corporate structure
Who controls this company, and who they control in turn
Company Person Current control Ended
Connections
Mr Dave Thornhill
born 11/1974 · England voting rights 25 to 50 percent limited liability partnership · voting rights 25 to 50 percent as trust limited liability partnership · voting rights 25 to 50 percent as firm limited liability partnership · significant influence or control limited liability partnership · significant influence or control as trust limited liability partnership · significant influence or control as firm limited liability partnership · right to share surplus assets 25 to 50 percent limited liability partnership · right to share surplus assets 25 to 50 percent as trust limited liability partnership · right to share surplus assets 25 to 50 percent as firm limited liability partnership · right to appoint and remove members limited liability partnership · right to appoint and remove members as trust limited liability partnership · right to appoint and remove members as firm limited liability partnership Notified 01/10/2016
Ms Sarah Louise Ablett
born 05/1974 · England voting rights 25 to 50 percent limited liability partnership · voting rights 25 to 50 percent as firm limited liability partnership · right to share surplus assets 25 to 50 percent limited liability partnership · right to share surplus assets 25 to 50 percent as trust limited liability partnership · right to share surplus assets 25 to 50 percent as firm limited liability partnership Notified 01/04/2017
Mrs Shireen Dew
born 06/1969 · England voting rights 25 to 50 percent limited liability partnership · voting rights 25 to 50 percent as trust limited liability partnership · voting rights 25 to 50 percent as firm limited liability partnership · significant influence or control limited liability partnership · significant influence or control as trust limited liability partnership · significant influence or control as firm limited liability partnership · right to share surplus assets 25 to 50 percent limited liability partnership · right to share surplus assets 25 to 50 percent as trust limited liability partnership · right to share surplus assets 25 to 50 percent as firm limited liability partnership · right to appoint and remove members limited liability partnership · right to appoint and remove members as trust limited liability partnership · right to appoint and remove members as firm limited liability partnership Control ended 01/04/2017
Change history
Reconstructed from the dated records Companies House publishes
| Date | Change | Was | Now |
|---|---|---|---|
| 14/12/2023 | Registered name changed | AMPERSANDESIGN LLP | THORNHILL & CO. LLP |
| 01/04/2017 | Person with significant control ceased | Mrs Shireen Dew | — |
| 01/04/2017 | Person with significant control added | — | Ms Sarah Louise Ablett |
| 01/10/2016 | Person with significant control added | — | Mrs Shireen Dew |
| 01/10/2016 | Person with significant control added | — | Mr Dave Thornhill |
Financial highlights
Parsed from the filed statutory accounts (£ thousands, except employees)
| Metric | FY2025 | FY2024 |
|---|---|---|
| Employees (avg) | 2 | 2 |
Documents for THORNHILL & CO. LLP
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Company extract£1.99
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Data protection register
No entry found on the ICO register of fee payers under this name.
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X-Api-Key: $OPENDATA_KEYFrequently asked questions
What is the company number of THORNHILL & CO. LLP?▾
According to the official registry, the company number of THORNHILL & CO. LLP is OC402096.
Where is THORNHILL & CO. LLP registered?▾
The registered office is 28 SPENCER AVENUE YARNTON, KIDLINGTON, OXFORD, OXON, OX5 1NG.
Who controls THORNHILL & CO. LLP?▾
Mr Dave Thornhill is recorded as a person with significant control, and voting rights 25 to 50 percent limited liability partnership, voting rights 25 to 50 percent as trust limited liability partnership, voting rights 25 to 50 percent as firm limited liability partnership, significant influence or control limited liability partnership, significant influence or control as trust limited liability partnership, significant influence or control as firm limited liability partnership, right to share surplus assets 25 to 50 percent limited liability partnership, right to share surplus assets 25 to 50 percent as trust limited liability partnership, right to share surplus assets 25 to 50 percent as firm limited liability partnership, right to appoint and remove members limited liability partnership, right to appoint and remove members as trust limited liability partnership, right to appoint and remove members as firm limited liability partnership.
When are the next accounts of THORNHILL & CO. LLP due?▾
The next annual accounts are due by 31 December 2026, and the last accounts were made up to 31 March 2025.
About THORNHILL & CO. LLP (OC402096)
THORNHILL & CO. LLP is a limited liability partnership incorporated on 3 October 2015 and registered in the United Kingdom under company number OC402096. Its registered office is at 28 SPENCER AVENUE YARNTON, KIDLINGTON, OXFORD, OXON, OX5 1NG. The company is currently active , with statutory accounts last made up to 31 March 2025. , and the person with significant control is Mr Dave Thornhill. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.
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