Sonoma Pharmaceuticals
Sonoma Pharmaceuticals is a registered legal entity registered in United States under 20191828198, and its current status with Colorado Secretary of State is active. The company was incorporated on 17 October 2019 and lists its registered address as Boulder, United States. 1 shareholder is on record for Sonoma Pharmaceuticals, 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 Colorado Secretary of State and was last updated on 5 October 2026.
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Shareholders
1
One shareholder is currently on record for Sonoma Pharmaceuticals, reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing.
The largest of these is Vanguard Group Inc, holding 21% — the largest recorded stake.
Because the 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 |
|---|---|---|---|
| Vanguard Group Inc | 21% | Colorado Secretary of State |
Officers
5
The Ceo, President & Director of Sonoma Pharmaceuticals currently on record is Amy M. Trombly; five officers are currently on record for Sonoma Pharmaceuticals, filed with Colorado Secretary of State.
The register reports 7 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at Sonoma Pharmaceuticals 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
Sonoma Pharmaceuticals has no recorded parent company — it sits at the top of its own group structure, with 3 subsidiaries recorded beneath it across 3 jurisdictions. 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 3 subsidiaries span United States, Mexico, Netherlands 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.
Sonoma Pharmaceuticals
United States
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Frequently Asked Questions
Who owns Sonoma Pharmaceuticals?
One shareholder is currently on record for Sonoma Pharmaceuticals, reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing. The largest of these is Vanguard Group Inc, holding 21% — the largest recorded stake. Because the 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 Sonoma Pharmaceuticals's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Sonoma Pharmaceuticals 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 Sonoma Pharmaceuticals have on record?
1 shareholder is shown on record for Sonoma Pharmaceuticals.
What is Sonoma Pharmaceuticals's company registration number?
Sonoma Pharmaceuticals's registration number is 20191828198, filed with Colorado Secretary of State in United States. Its current status on the register is active.
Is Sonoma Pharmaceuticals still an active company?
Sonoma Pharmaceuticals's status on Colorado Secretary of State is listed as active.
When was Sonoma Pharmaceuticals incorporated?
Sonoma Pharmaceuticals was incorporated on 17 October 2019, according to Colorado Secretary of State.
What is Sonoma Pharmaceuticals's registered address?
The registered address on file for Sonoma Pharmaceuticals is Boulder, United States.
Who are the officers/directors of Sonoma Pharmaceuticals?
The Ceo, President & Director of Sonoma Pharmaceuticals currently on record is Amy M. Trombly; five officers are currently on record for Sonoma Pharmaceuticals, filed with Colorado Secretary of State. Management authority at Sonoma Pharmaceuticals sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does Sonoma Pharmaceuticals have a parent company or subsidiaries?
Sonoma Pharmaceuticals has no recorded parent company — it sits at the top of its own group structure, with 3 subsidiaries recorded beneath it across 3 jurisdictions. Those 3 subsidiaries span United States, Mexico, Netherlands 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 Sonoma Pharmaceuticals's ownership over time?
This profile reflects a point-in-time snapshot from Colorado Secretary of State. Zavia's monitoring API can track changes to Sonoma Pharmaceuticals's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Sonoma Pharmaceuticals's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United States, so records like Sonoma Pharmaceuticals'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 Colorado Secretary of State and was last synced on 5 October 2026.