SYNEXUS CLINICAL RESEARCH TOPCO LIMITED
SYNEXUS CLINICAL RESEARCH TOPCO LIMITED is a Private limited company (Ltd.) registered in United Kingdom under 09388942, and its current status with Companies House is active. The company was incorporated on 14 January 2015 and lists its registered address as Cambridge, United Kingdom. 5 shareholders are on record for SYNEXUS CLINICAL RESEARCH TOPCO LIMITED, and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Companies House and was last updated on 6 October 2026.
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Shareholders
5
Five shareholders are currently on record for SYNEXUS CLINICAL RESEARCH TOPCO LIMITED, held on the Confirmation Statement (CS01), filed under the Companies Act 2006.
The largest of these is PHARMACEUTICAL PRODUCT DEVELOPMENT, LLC, holding 70.7% — a majority holding — followed by PHARMACEUTICAL PRODUCT DEVELOPMENT LLC at 32.8%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 10 shareholders in total, though only the top 5 by holding are shown in this view.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| PHARMACEUTICAL PRODUCT DEVELOPMENT, LLC | 70.7% | Companies House | |
| PHARMACEUTICAL PRODUCT DEVELOPMENT LLC | 32.8% | Companies House | |
| PHARMACEUTICAL PRODUCT DEVELOPMENT LLC | 27% | Companies House | |
| PHARMACEUTICAL PRODUCT DEVELOPMENT, LLC | 20.8% | Companies House | |
| PHARMACEUTICAL PRODUCT DEVELOPMENT, LLC | 20.8% | Companies House |
Officers
5
The Director of SYNEXUS CLINICAL RESEARCH TOPCO LIMITED currently on record is Syed Ahmed; five officers are currently on record for SYNEXUS CLINICAL RESEARCH TOPCO LIMITED, filed with Companies House.
The register reports 17 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at SYNEXUS CLINICAL RESEARCH TOPCO LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
SYNEXUS CLINICAL RESEARCH TOPCO LIMITED sits 3 levels below its ultimate parent, Thermo Fisher Scientific Inc., registered in United States. 1 subsidiary is recorded beneath it, across 2 jurisdictions. Immediately above SYNEXUS CLINICAL RESEARCH TOPCO LIMITED is Pharmaceutical Product Development, LLC, holding 112.2% as filed in SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's own shareholder record with Companies House. Thermo Fisher Scientific Inc. sits further up the chain, a link derived by walking shareholder filings across jurisdictions rather than stated in a single document. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 1 subsidiary spans United Kingdom, United States jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.
Thermo Fisher Scientific Inc.
United States
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Frequently Asked Questions
Who owns SYNEXUS CLINICAL RESEARCH TOPCO LIMITED?
Five shareholders are currently on record for SYNEXUS CLINICAL RESEARCH TOPCO LIMITED, held on the Confirmation Statement (CS01), filed under the Companies Act 2006. The largest of these is PHARMACEUTICAL PRODUCT DEVELOPMENT, LLC, holding 70.7% — a majority holding — followed by PHARMACEUTICAL PRODUCT DEVELOPMENT LLC at 32.8%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for SYNEXUS CLINICAL RESEARCH TOPCO LIMITED is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does SYNEXUS CLINICAL RESEARCH TOPCO LIMITED have on record?
5 shareholders are shown on record for SYNEXUS CLINICAL RESEARCH TOPCO LIMITED. The register reports 10 in total; only the top 5 by holding are shown here.
What is SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's company registration number?
SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's registration number is 09388942, filed with Companies House in United Kingdom. Its current status on the register is active.
Is SYNEXUS CLINICAL RESEARCH TOPCO LIMITED still an active company?
SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's status on Companies House is listed as active.
When was SYNEXUS CLINICAL RESEARCH TOPCO LIMITED incorporated?
SYNEXUS CLINICAL RESEARCH TOPCO LIMITED was incorporated on 14 January 2015, according to Companies House.
What is SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's registered address?
The registered address on file for SYNEXUS CLINICAL RESEARCH TOPCO LIMITED is Cambridge, United Kingdom.
What legal structure is SYNEXUS CLINICAL RESEARCH TOPCO LIMITED registered as?
SYNEXUS CLINICAL RESEARCH TOPCO LIMITED is registered as a Private limited company (Ltd.) in United Kingdom.
Who are the officers/directors of SYNEXUS CLINICAL RESEARCH TOPCO LIMITED?
The Director of SYNEXUS CLINICAL RESEARCH TOPCO LIMITED currently on record is Syed Ahmed; five officers are currently on record for SYNEXUS CLINICAL RESEARCH TOPCO LIMITED, filed with Companies House. Management authority at SYNEXUS CLINICAL RESEARCH TOPCO LIMITED sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does SYNEXUS CLINICAL RESEARCH TOPCO LIMITED have a parent company or subsidiaries?
SYNEXUS CLINICAL RESEARCH TOPCO LIMITED sits 3 levels below its ultimate parent, Thermo Fisher Scientific Inc., registered in United States. 1 subsidiary is recorded beneath it, across 2 jurisdictions. Those 1 subsidiary spans United Kingdom, United States jurisdictions, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.
Can Zavia monitor changes to SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's ownership over time?
This profile reflects a point-in-time snapshot from Companies House. Zavia's monitoring API can track changes to SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United Kingdom, so records like SYNEXUS CLINICAL RESEARCH TOPCO LIMITED's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Companies House and was last synced on 6 October 2026.