# 3I CORPORATION

3I CORPORATION of NEW YORK, NY is an SEC-registered investment adviser.

## Registration

- CRD: 159892
- Type: SEC-registered investment adviser
- SEC file number: 801-73360
- Location: 300 PARK AVENUE, 23RD FLOOR, NEW YORK, NY, 10022
- Phone: 1 212 848 1400
- Latest filing: 2026-06-29
- Regulatory AUM: $2.7B
- Discretionary AUM: $555.7M
- Non-discretionary AUM: $2.1B
- Clients: 27
- Accounts: 9

## Business model

- Compensation: % of AUM, Fixed, Performance
- Clients served: Investment cos

## Officers, owners & control persons (21)

| Name | Role | Location |
| --- | --- | --- |
| [Richard Vaurie Relyea](https://search.stillhousedata.com/person/686318) | DIRECTOR; TREASURER | — |
| [John Paul Decesare](https://search.stillhousedata.com/person/686319) | CHIEF COMPLIANCE OFFICER | — |
| [Robert K Collins](https://search.stillhousedata.com/person/686320) | DIRECTOR | — |
| [Benjamin Daniel Krause](https://search.stillhousedata.com/person/686321) | DIRECTOR | — |
| [Jasi Hari Halai](https://search.stillhousedata.com/person/686322) | DIRECTOR | — |
| [COLLINS MARY K](https://search.stillhousedata.com/person/729058) | DIRECTOR | — |
| [FRASER JOHN WILLIAM](https://search.stillhousedata.com/person/758204) | DIRECTOR | — |
| [PATON MICHAEL JOHN](https://search.stillhousedata.com/person/777892) | TREASURER | — |
| [RELYEA RICHARD VAURIE](https://search.stillhousedata.com/person/813693) | DIRECTOR; TREASURER | — |
| [RUTHERFURD JAMES POLK](https://search.stillhousedata.com/person/813694) | DIRECTOR | — |
| [HANAU KENNETH JOHN](https://search.stillhousedata.com/person/813695) | DIRECTOR; TREASURER | — |
| [GIDDINS ALAN CLIFFORD BENCE](https://search.stillhousedata.com/person/813696) | DIRECTOR | — |
| [DECESARE JOHN PAUL](https://search.stillhousedata.com/person/813697) | CHIEF COMPLIANCE OFFICER | — |
| [OLINICK ANDREW JASON](https://search.stillhousedata.com/person/815772) | DIRECTOR | — |
| [BASOV GENE NMN](https://search.stillhousedata.com/person/823853) | DIRECTOR | — |
| [O'GRADY CREVAN THOMAS](https://search.stillhousedata.com/person/833613) | DIRECTOR | — |
| [RELYEA RICHARD V](https://search.stillhousedata.com/person/834986) | DIRECTOR | — |
| [GIDDINS ALAN](https://search.stillhousedata.com/person/834987) | DIRECTOR | — |
| [O'GRADY CREVAN](https://search.stillhousedata.com/person/834988) | DIRECTOR | — |
| [Krause Daniel](https://search.stillhousedata.com/person/844584) | DIRECTOR | — |
| [Halai Jasi Hari](https://search.stillhousedata.com/person/855784) | DIRECTOR | — |


## Private funds (8)

| Fund | Type | Formed | Owners | GAV | Min investment |
| --- | --- | --- | --- | --- | --- |
| 3I NORTH AMERICAN INFRASTRUCTURE FUND B LP | Private Equity Fund | Delaware | 7 | $231.7M | $10.0M |
| 3I RR COINVEST LP | Private Equity Fund | Delaware | 4 | $161.1M | $1 |
| 3I NORTH AMERICAN INFRASTRUCTURE FUND C LP | Private Equity Fund | Delaware | 4 | $92.1M | $10.0M |
| 3I MME COINVEST LP | Private Equity Fund | Delaware | 4 | $39.4M | $1 |
| 3I ECW COINVEST LP | Private Equity Fund | Delaware | 1 | $24.2M | $1 |
| NORTH AMERICAN INFRASTRUCTURE CARRY AND COINVEST LP | Private Equity Fund | Delaware | 8 | $7.2M | $1 |
| PE 2019-22 CO-INVEST LP | Private Equity Fund | United Kingdom | 49 | $5.3M | $1 |
| PE 2016-19 CO-INVEST LP | Private Equity Fund | United Kingdom | 48 | $5.1M | $1 |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/159892/brochure
- Similar advisers: https://search.stillhousedata.com/firm/159892/similar
- Related entities: https://search.stillhousedata.com/firm/159892/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/159892

---

Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.