On the UK register
3i Corporation
3I PLC is a public limited company incorporated 1945-07-21, registered at 1 Knightsbridge, London, SW1X 7LX. 4 directors are currently in post, of 100 ever recorded.
The UK record
Filed with Companies House and public. This is the half of the picture Form ADV does not carry: the legal entity, who sits on it, and who controls it.
- Company number
- 00397156
- Legal form
- Public limited company
- Incorporated
- 1945-07-21
- Directors
- 4
- Accounts to
- 2026-03-31 (full)
Significant control
- 3i Holdings Plccompany75 to 100% of the shares, 75 to 100% of the votes, can appoint and remove members
Companies House names the individuals with significant control and this site does not repeat them. What matters here is who controls the manager and by how much, and that is filed above in full. A controller that is itself a company keeps its name, because that is a link in an ownership chain rather than a person. The register is one click away if you need the names.
What the SEC filings add
3i Corporation is the SEC registered adviser matched to this firm. The regulatory assets below belong to that entity rather than to the whole business, and for a British house that is frequently a subsidiary. Treat it as a filed figure about a registration, not as the size of the firm.
- Regulatory AUM
- $2.70bn
- Private funds
- 15
- Private equity share
- 100%
- Latest ADV
- 2026-06-29
- 3i Corporation801-73360United States$2.70bn
What kind of funds
From Schedule D, weighted by gross asset value, as filed to 2024-12-31. 67% of its funds are constituted in the United Kingdom or the Crown Dependencies, which is the filed signal that placed it on this page rather than the American one.
- Private Equity Fund100%$1.86bn
Where this comes from
UK record: Companies House, company 00397156, read through its public API. Assets and funds: Form ADV. The two were matched by name, so the company number is shown above for checking rather than asserted: if it is the wrong entity, the link will say so plainly.