I Squared Capital Advisors (US) LLC
Miami, FL · CRD 168339
Private equity manager
I Squared Capital Advisors (US) LLC is an SEC-registered investment adviser based in Miami, FL that reports managing 123 private funds on Form ADV, including 123 private equity funds. It reports $60.1 billion in regulatory assets under management. Its private funds hold $66.4 billion in gross assets.
- Regulatory assets under management
- $60.1 billionForm ADV Item 5.F
- Gross assets of private funds
- $66.4 billionAll private fund types, Form ADV
- Private funds managed
- 123PE 123 · VC 0 · hedge 0
- Employees
- 331Form ADV Item 5.A
- Registration
- SEC-registered adviserCRD 168339
- Latest Form ADV
- 03/28/2026Disciplinary disclosures: none reported
Private equity funds filing Form D (6)
Fund
First sale
Raised
Investors
Minimum
Offering
ISQ Energy Transition Fund, L.P.
Miami, FL506(c)
First saleNov 2023
Raised$882M
Investors25
MinimumNone set
Offering506(c)
ISQ Magnum L.P.
Miami, FL
First sale—
Raised$0
Investors0
MinimumNone set
Offering506(b)
ISQ Middle East Infrastructure Fund, L.P.
Miami, FL506(c)
First sale—
Raised$0
Investors0
MinimumNone set
Offering506(c)
ISQ Global Infrastructure Credit Fund II (Onshore) Feeder, L.P.
Miami, FL506(c)
First sale—
Raised$0
Investors0
MinimumNone set
Offering506(c)
ISQ Global Infrastructure Credit Fund II (Onshore) 2025-1, LLC
Miami, FL
First sale—
Raised$0
Investors0
MinimumNone set
Offering506(b)
ISQ Growth Markets Infrastructure Fund II (UST), L.P.
Miami, FL
First sale—
Raised$0
Investors0
MinimumNone set
Offering506(b)
Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.
Private funds reported on Form ADV (61)
Fund
Gross assets
Minimum
Owners
Adviser
ISQ Global Infrastructure Fund III, L.P.
Cayman IslandsPrivate equity fund
Gross assets$8.5B
Minimum$25.0M
Owners123
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund II, L.P.
Cayman IslandsPrivate equity fund
Gross assets$4.5B
Minimum$25.0M
Owners45
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund III (Eu), L.P.
LuxembourgPrivate equity fund
Gross assets$4.1B
Minimum$25.0M
Owners82
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund III (Ust), L.P.
Cayman IslandsPrivate equity fund
Gross assets$3.3B
Minimum$25.0M
Owners56
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund II (Ust), L.P.
Cayman IslandsPrivate equity fund
Gross assets$2.6B
Minimum$25.0M
Owners52
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund, L.P.
Cayman IslandsPrivate equity fund
Gross assets$1.9B
Minimum$10.0M
Owners40
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund II (Eu), L.P.
CanadaPrivate equity fund
Gross assets$1.8B
Minimum$25.0M
Owners44
AdviserI Squared Capital Advisors (US) LLC
Nautilus Energy Partners LLC
Cayman IslandsPrivate equity fund
Gross assets$1.7B
MinimumNone set
Owners3
AdviserI Squared Capital Advisors (US) LLC
Asia Cube Telecom LLC
Cayman IslandsPrivate equity fund
Gross assets$1.5B
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
Nautilus Energy Holdings LLC
Cayman IslandsPrivate equity fund
Gross assets$1.5B
MinimumNone set
Owners13
AdviserI Squared Capital Advisors (US) LLC
Energia Group Topco Limited
Cayman IslandsPrivate equity fund
Gross assets$1.3B
MinimumNone set
Owners4
AdviserI Squared Capital Advisors (US) LLC
Asia Cube Telecom Holdings LLC
Cayman IslandsPrivate equity fund
Gross assets$1.1B
MinimumNone set
Owners11
AdviserI Squared Capital Advisors (US) LLC
Cube Healthcare Europe Holdco Limited
United KingdomPrivate equity fund
Gross assets$1.0B
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
ISQ Growth Markets Infrastructure Fund, L.P.
Cayman IslandsPrivate equity fund
Gross assets$1.0B
Minimum$25.0M
Owners13
AdviserI Squared Capital Advisors (US) LLC
ISQ Asia Fund II, L.P.
Cayman IslandsPrivate equity fund
Gross assets$1.0B
MinimumNone set
Owners6
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund III (Uste), L.P.
Cayman IslandsPrivate equity fund
Gross assets$843M
Minimum$25.0M
Owners52
AdviserI Squared Capital Advisors (US) LLC
ISQ Growth Markets Infrastructure Fund (Ust), L.P.
Cayman IslandsPrivate equity fund
Gross assets$717M
Minimum$25.0M
Owners6
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Credit Fund (Onshore), L.P.
Delaware, United StatesPrivate equity fund
Gross assets$609M
MinimumNone set
Owners3
AdviserI Squared Capital Advisors (US) LLC
ISQ Growth Markets Infrastructure Fund (Eu), L.P.
LuxembourgPrivate equity fund
Gross assets$570M
Minimum$25.0M
Owners7
AdviserI Squared Capital Advisors (US) LLC
I Squared Transportation Europe, L.P.
Cayman IslandsPrivate equity fund
Gross assets$564M
MinimumNone set
Owners12
AdviserI Squared Capital Advisors (US) LLC
ISQ Ace Fund, LLC
Delaware, United StatesPrivate equity fund
Gross assets$521M
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund II (Uste), L.P.
Cayman IslandsPrivate equity fund
Gross assets$439M
Minimum$25.0M
Owners25
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund (S), L.P.
CanadaPrivate equity fund
Gross assets$373M
Minimum$10.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund (Eu), L.P.
CanadaPrivate equity fund
Gross assets$304M
Minimum$10.0M
Owners15
AdviserI Squared Capital Advisors (US) LLC
ISQ Whistler Holdings, LLC
Delaware, United StatesPrivate equity fund
Gross assets$297M
MinimumNone set
Owners18
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund (Ust), L.P.
Cayman IslandsPrivate equity fund
Gross assets$286M
Minimum$10.0M
Owners6
AdviserI Squared Capital Advisors (US) LLC
I Squared Telecom Partners, L.P.
Cayman IslandsPrivate equity fund
Gross assets$236M
MinimumNone set
Owners6
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund II (Au), L.P.
Delaware, United StatesPrivate equity fund
Gross assets$200M
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
I Squared Nautilus Partners, L.P.
Cayman IslandsPrivate equity fund
Gross assets$186M
MinimumNone set
Owners12
AdviserI Squared Capital Advisors (US) LLC
ISQ Energy Transition Fund, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$177M
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund (Uste), L.P.
Cayman IslandsPrivate equity fund
Gross assets$170M
Minimum$10.0M
Owners13
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infratech Fund, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$166M
MinimumNone set
Owners39
AdviserI Squared Capital Advisors (US) LLC
ISQ Whistler Holdings (Parent), LLC
Delaware, United StatesPrivate equity fund
Gross assets$149M
MinimumNone set
Owners6
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund (Au), L.P.
Delaware, United StatesPrivate equity fund
Gross assets$146M
Minimum$10.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
Whiptail Midstream Holdings LLC
Delaware, United StatesPrivate equity fund
Gross assets$137M
MinimumNone set
Owners3
AdviserI Squared Capital Advisors (US) LLC
I Squared Telecom Partners II, L.P.
Cayman IslandsPrivate equity fund
Gross assets$135M
MinimumNone set
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Credit Fund (Eu), Scsp
LuxembourgPrivate equity fund
Gross assets$133M
MinimumNone set
Owners4
AdviserI Squared Capital Advisors (US) LLC
ISQ Growth Markets Infrastructure Fund (A), L.P.
LuxembourgPrivate equity fund
Gross assets$123M
Minimum$25.0M
Owners2
AdviserI Squared Capital Advisors (US) LLC
I Squared Nautilus Partners II, L.P.
Cayman IslandsPrivate equity fund
Gross assets$92.5M
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
BDX Fund III DC Partners (B), L.P.
Cayman IslandsPrivate equity fund
Gross assets$84.0M
Minimum$25.0M
Owners7
AdviserI Squared Capital Advisors (US) LLC
BDX Fund II DC Partners, L.P.
Cayman IslandsPrivate equity fund
Gross assets$81.8M
Minimum$25.0M
Owners11
AdviserI Squared Capital Advisors (US) LLC
ISQ Energy Transition Fund (Eu), Scsp
Delaware, United StatesPrivate equity fund
Gross assets$76.5M
MinimumNone set
Owners3
AdviserI Squared Capital Advisors (US) LLC
ISQ Energy Transition Fund (Eu) Euro Scsp
Delaware, United StatesPrivate equity fund
Gross assets$76.5M
MinimumNone set
Owners3
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Credit Fund (Offshore), L.P.
Delaware, United StatesPrivate equity fund
Gross assets$50.8M
MinimumNone set
Owners4
AdviserI Squared Capital Advisors (US) LLC
I Squared Transportation Europe II, LP
Cayman IslandsPrivate equity fund
Gross assets$49.5M
MinimumNone set
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Infratech Ventures, L.P.
Cayman IslandsPrivate equity fund
Gross assets$2.3M
MinimumNone set
Owners28
AdviserI Squared Capital Advisors (US) LLC
Isqgif II (Au) Aiv, L.P.
CanadaPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Growth Markets Infrastructure Fund (Uste), L.P.
Cayman IslandsPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners0
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund III (Eu) Aiv L.P.
LuxembourgPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund III (Ust) Aiv, L.P.
Cayman IslandsPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
Isqgif III (Ust) U.S. Aiv, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
Isqgif III U.S. Aiv, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund III (Uste) Aiv, L.P.
LuxembourgPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
Isqgif III (Uste) U.S. Aiv, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
Isqgif II (Ust) Aiv, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners51
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund (Ust) Aiv, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$0
Minimum$10.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
Isqgif II (Eu) Aiv, L.P.
CanadaPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund III Aiv, L.P.
Cayman IslandsPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
Isqgif III (Eu) U.S. Aiv, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Global Infrastructure Fund II (Ust) Aiv, L.P.
Cayman IslandsPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners51
AdviserI Squared Capital Advisors (US) LLC
Isqgif II (Uste) Aiv, L.P.
CanadaPrivate equity fund
Gross assets$0
Minimum$25.0M
Owners1
AdviserI Squared Capital Advisors (US) LLC
As reported in the adviser's Form ADV filed Dec 9, 2024. Funds also listed from Form D are shown above.
Fund vehicles: feeder funds and single-deal vehicles (17)
Fund
Gross assets
Minimum
Owners
Adviser
ISQ Apollo Co-Invest Fund III, L.P.
Cayman IslandsPrivate equity fund
Gross assets$875M
MinimumNone set
Owners24
AdviserI Squared Capital Advisors (US) LLC
ISQ Eleanor Co-Invest Feeder, L.P.
Cayman IslandsPrivate equity fund
Gross assets$449M
MinimumNone set
Owners9
AdviserI Squared Capital Advisors (US) LLC
ISQ Kio Co-Invest Fund, L.P.
Cayman IslandsPrivate equity fund
Gross assets$414M
MinimumNone set
Owners29
AdviserI Squared Capital Advisors (US) LLC
ISQ Viridian Co-Invest, L.P.
Cayman IslandsPrivate equity fund
Gross assets$325M
MinimumNone set
Owners6
AdviserI Squared Capital Advisors (US) LLC
ISQ Icp Co-Investment, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$272M
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
ISQ Eleanor Co-Invest Fund, L.P.
Cayman IslandsPrivate equity fund
Gross assets$181M
MinimumNone set
Owners5
AdviserI Squared Capital Advisors (US) LLC
ISQ Gif III Co-Investment Fund (B), L.P.
Cayman IslandsPrivate equity fund
Gross assets$170M
MinimumNone set
Owners22
AdviserI Squared Capital Advisors (US) LLC
ISQ Co-Investment Fund III (Orcas), L.P.
Cayman IslandsPrivate equity fund
Gross assets$153M
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
ISQ Hydro Co-Investment Fund, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$117M
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
Buzzard Midstream Infrastructure Co-Invest Pooling, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$113M
MinimumNone set
Owners8
AdviserI Squared Capital Advisors (US) LLC
ISQ Co-Investment Fund (Tx), L.P.
Cayman IslandsPrivate equity fund
Gross assets$106M
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
ISQ Co-Investment Fund III (NY) LP
Cayman IslandsPrivate equity fund
Gross assets$100M
MinimumNone set
Owners2
AdviserI Squared Capital Advisors (US) LLC
Buzzard Midstream Infrastructure Co-Invest II, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$93.5M
MinimumNone set
Owners7
AdviserI Squared Capital Advisors (US) LLC
ISQ Icp 2020 III Co-Investment, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$75.2M
MinimumNone set
Owners1
AdviserI Squared Capital Advisors (US) LLC
ISQ Oregon Co-Invest Aggregator, L.P.
Cayman IslandsPrivate equity fund
Gross assets$37.8M
MinimumNone set
Owners3
AdviserI Squared Capital Advisors (US) LLC
ISQ Gif III Co-Investment Fund, L.P.
Cayman IslandsPrivate equity fund
Gross assets$30.7M
MinimumNone set
Owners3
AdviserI Squared Capital Advisors (US) LLC
ISQ Oregon Co-Invest Pooling, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$7.6M
MinimumNone set
Owners1
AdviserI Squared Capital Advisors (US) LLC
Feeder funds invest through a master fund; single-deal vehicles (SPVs, co-investments, series) hold one investment.
From SEC filings. Firm data comes from the SEC's Form ADV data. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures