ILLINGWORTH RESEARCH GROUP LIMITED
Company details
- Registered name
- ILLINGWORTH RESEARCH GROUP LIMITED
- Company number
- 03656301
- Registered office
- FARNBOROUGH BUSINESS PARK, 1 PINEHURST ROAD, FARNBOROUGH, GU14 7BF, ENGLAND · 59 other companies at this postcode
- Company type
- Private Limited Company
- Incorporated on
- 26 October 1998
- Status
- Active
- Age
- 27 years
- Previous names
- ILLINGWORTH RESEARCH LIMITED (to 17 Jan 2017) · CLINICAL DEVELOPMENT AND SUPPORT SERVICES LIMITED (to 17 Jan 2017)
- Nature of business (SIC)
- 86900 — Other human health activities
- Accounts — next due
- 30 Sept 2026
- Accounts — last made up to
- 31 Dec 2024
- Confirmation statement — next due
- 03 Jan 2027
- Confirmation statement — last
- 20 Dec 2025
What the register says
Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.
- 2 of 2 registered charges outstanding — a lender has a claim over the assets.
Companies House register snapshot, read 02/09/2026.
People with significant control
Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors
Corporate structure
Who controls this company, and who they control in turn
Connections
Change history
Reconstructed from the dated records Companies House publishes
| Date | Change | Was | Now |
|---|---|---|---|
| 17/12/2020 | Person with significant control ceased | Mr John Malcolm Illingworth | — |
| 17/12/2020 | Person with significant control ceased | Illingworth Research Limited | — |
| 17/12/2020 | Person with significant control added | — | Syneos Health Ba Limited |
| 17/12/2020 | Person with significant control added | — | Illingworth Research Limited |
| 17/01/2017 | Registered name changed | CLINICAL DEVELOPMENT AND SUPPORT SERVICES LIMITED | ILLINGWORTH RESEARCH LIMITED |
| 17/01/2017 | Registered name changed | ILLINGWORTH RESEARCH LIMITED | ILLINGWORTH RESEARCH GROUP LIMITED |
| 06/04/2016 | Person with significant control added | — | Mr John Malcolm Illingworth |
Documents for ILLINGWORTH RESEARCH GROUP LIMITED
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The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.
Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.
Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.
Data protection register
Registered with the Information Commissioner's Office as a data protection fee payer.
The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.
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About ILLINGWORTH RESEARCH GROUP LIMITED (03656301)
ILLINGWORTH RESEARCH GROUP LIMITED is a private limited company incorporated on 26 October 1998 and registered in the United Kingdom under company number 03656301. Its registered office is at FARNBOROUGH BUSINESS PARK, 1 PINEHURST ROAD, FARNBOROUGH, GU14 7BF, ENGLAND. The recorded nature of business is other human health activities (SIC 86900). The company is currently active , with statutory accounts last made up to 31 December 2024. , and the person with significant control is Illingworth Research Limited. 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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