# I Squared Capital
**I Squared Capital** is an independent private equity firm focused on infrastructure, founded in 2012 by Sadek Wahba, Gautam Bhandari, and Adil Rahmathulla after they left top global leadership positions with [Morgan Stanley Infrastructure Partners](https://www.edgepedia.org/morgan-stanley-infrastructure-partners).[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) Headquartered in Miami, as of December 2024, it had more than $40 billion in assets under management; as of May 2023, its portfolio comprised 77 companies in 59 countries spanning utilities, energy, digital infrastructure, transport, environmental infrastructure, and social infrastructure.[2](https://www.businesswire.com/news/home/20230519005039/en/I-Squared-Capital-Appoints-Gautam-Bhandari-as-Global-Chief-Investment-Officer) • [3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf)
A note on fund numbering: the firm's third flagship fund, ISQ Global Infrastructure Fund III, closed at $15 billion in 2022, not at the roughly $7 billion figure sometimes associated with it; the $7 billion fund is Fund II, which closed in September 2018.[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) • [4](https://offshoresource.com/business-wire/i-squared-capital-closes-its-largest-global-infrastructure-fund-to-date-at-15-billion/)
| Key fact | Detail |
|---|---|
| Founded | 2012, by Sadek Wahba, Gautam Bhandari, and Adil Rahmathulla, all formerly of Morgan Stanley Infrastructure Partners[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) |
| Assets under management | $14.2 billion (March 2020); over $37 billion (May 2023); more than $40 billion (December 2024)[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) • [2](https://www.businesswire.com/news/home/20230519005039/en/I-Squared-Capital-Appoints-Gautam-Bhandari-as-Global-Chief-Investment-Officer) • [3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) |
| Flagship funds | Fund I $3.0 billion (2014 vintage); Fund II $7.0 billion (2017 vintage, closed September 2018); Fund III $15 billion (closed 2022)[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) • [3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) |
| Reported returns (2020) | Fund I: 16.4% net IRR, 1.6x net multiple of capital; Fund II: 14.2% net IRR, 1.1x[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) |
| Deal size | Mid-market: portfolio company equity values below $500 million and EBITDA below $150 million, generally with controlling interests; tickets typically $400–500 million, up to $1 billion[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) • [3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) |
| Emerging markets | $18 billion in enterprise value invested across 12 high-growth economies since founding[5](https://isquaredcapital.com/strategies/) |
| Portfolio | 77 companies in 59 countries with over 31,000 employees (May 2023)[2](https://www.businesswire.com/news/home/20230519005039/en/I-Squared-Capital-Appoints-Gautam-Bhandari-as-Global-Chief-Investment-Officer) |
## What infrastructure private equity means here
Infrastructure private equity differs from ordinary buyout PE in what it buys and how it is held. I Squared acquires or builds companies through a platform development approach, cultivating a diversified portfolio across sectors including energy, utilities, transportation, social infrastructure, digital infrastructure, and environmental infrastructure.[5](https://isquaredcapital.com/strategies/) The firm's Global Equity strategy emphasizes low correlation with other asset classes and downside protection through a proprietary risk model, and a separate Growth Market strategy modernizes infrastructure in high-growth economies.[5](https://isquaredcapital.com/strategies/)
The vehicle is the standard one for the asset class. A study of institutional infrastructure investing in the *Review of Financial Studies* found that of 5,920 institutional commitments to infrastructure funds, 5,189 went to 538 closed-end funds, the structure I Squared uses, far ahead of listed and open-ended vehicles.[6](https://academic.oup.com/rfs/article/34/8/3880/6239714)
## Investment strategy and model
**Control-oriented mid-market.** The firm defines its core market as portfolio companies with equity values below $500 million and EBITDA below $150 million, generally seeking controlling interests, alongside opportunistic larger investments in distressed or pricing-dislocation situations.[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) Ticket sizes typically run to $400–500 million, with exceptions up to $1 billion, as the group builds platforms.[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) In Asia it looks at deals from $150 million to an average of $500 million.[7](https://www.reuters.com/business/finance/infrastructure-firm-i-squared-invest-5-bln-asia-over-next-three-years-executive-2024-05-23/)
**Platform building across funds.** The firm's signature mechanism is the cross-fund platform: portfolio companies such as Cube Highways I, II, and III span successive funds with no asset sold between funds, and each asset is held as a special-purpose vehicle. Management teams are reused across funds, and capital is committed incrementally rather than upfront; as Wahba put it, "There's no $2 billion blind cheque that we write upfront to anybody to grow these platforms. We drip capital in a disciplined manner."[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) As reported in December 2024, Fund III was expected to hold close to 30 investments once fully invested.[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf)
**Geographies and sectors.** Fund III invests in energy, transportation, utilities, telecom, midstream, and social infrastructure across North America, Europe, Asia, and Latin America.[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) Emerging economies account for $18 billion in enterprise value across 12 countries, and the firm reports over $7 billion in commitments to the broader energy transition space.[5](https://isquaredcapital.com/strategies/)
## Funds and fundraising history
The flagship series has grown steadily. Through March 31, 2020, the firm had invested $10.5 billion in 26 portfolio companies across Fund I, a $3.0 billion 2014-vintage fund, and Fund II, a $7.0 billion 2017-vintage fund.[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf) Fund II closed on $7 billion in September 2018.[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf)
**Fund III.** ISQ Global Infrastructure Fund III closed at its $15 billion legal cap in 2022, exceeding an initial target of $12 billion, with $15.5 billion in investable capital including a dedicated co-investment vehicle. It drew commitments from over 200 institutional investors in 27 countries, and the firm targeted deploying roughly 36 percent of the fund in ten investments.[4](https://offshoresource.com/business-wire/i-squared-capital-closes-its-largest-global-infrastructure-fund-to-date-at-15-billion/) The same year the firm raised a $2 billion growth markets fund.[7](https://www.reuters.com/business/finance/infrastructure-firm-i-squared-invest-5-bln-asia-over-next-three-years-executive-2024-05-23/)
**Fund IV and the wider program.** As of December 2024 the firm had four funds in market: a fourth flagship, a second growth markets vehicle, a second credit fund, and a debut energy transition strategy.[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) By March 2026 it had raised roughly $10 billion toward a $15 billion target for the next flagship, according to an investor letter seen by Bloomberg, and was expected to be about two-thirds of the way to target when it completed its initial fundraising round that month.[8](https://www.bloomberg.com/news/articles/2026-03-11/i-squared-raises-10-billion-so-far-for-next-infrastructure-fund) Trade press reported roughly $17 billion in total fundraising across vehicles at that time, including $2 billion toward a targeted $3 billion high-growth-markets fund and $2.5 billion for credit investments, above an initial $1.5 billion credit goal.[9](https://www.privateequitywire.co.uk/i-squared-capital-nears-10bn-milestone-for-flagship-infra-fund/)
## Portfolio and flagship assets
The best-documented flagship asset is the Cube Highways platform, held as successive vehicles (Cube Highways I, II, and III) across funds with each asset in an SPV.[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) Beyond Cube, the portfolio as of May 2023 comprised 77 companies in 59 countries with over 31,000 employees across utilities, energy, digital infrastructure, transport, environmental infrastructure, and social infrastructure.[2](https://www.businesswire.com/news/home/20230519005039/en/I-Squared-Capital-Appoints-Gautam-Bhandari-as-Global-Chief-Investment-Officer)
## How it compares with its peers
I Squared sits in the mid-market tier of infrastructure managers rather than the mega-fund tier. At more than $40 billion in AUM as of December 2024, it is larger than its own former home, Morgan Stanley Infrastructure, at $16 billion.[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) Wahba has argued that around $15 billion per fund is the sweet spot: "If we go into the $20 billion mark, then you start having a strategy drift."[3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf) The mid-market focus shows up in deal size: equity checks in companies valued below $500 million, against the multi-billion single-asset deals that define the largest infrastructure funds.[1](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf)
## Recent developments
**Leadership.** In May 2023 co-founder Gautam Bhandari was appointed Global Chief Investment Officer, working with founder Chairman and Managing Partner Sadek Wahba; Mohamed Adel El-Gazzar and Harsh Agrawal were named Senior Partners and an Operating Committee was formed.[2](https://www.businesswire.com/news/home/20230519005039/en/I-Squared-Capital-Appoints-Gautam-Bhandari-as-Global-Chief-Investment-Officer) The announcement also set out that co-founder Adil Rahmathulla would transition out over the coming year, and his tenure ended in June 2024, leaving two of the three founders.[2](https://www.businesswire.com/news/home/20230519005039/en/I-Squared-Capital-Appoints-Gautam-Bhandari-as-Global-Chief-Investment-Officer) • [3](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf)
**Deployment.** In May 2024, with over $38 billion under management, the firm announced a plan to invest $5 billion in Asia-Pacific from 2025 to 2027, drawn from the $15 billion flagship and the $2 billion growth markets fund, targeting renewables, digital infrastructure, transport and logistics, and environmental infrastructure; it also planned to open a Seoul office in 2024, adding to Singapore, New Delhi, Sydney, and Taipei.[7](https://www.reuters.com/business/finance/infrastructure-firm-i-squared-invest-5-bln-asia-over-next-three-years-executive-2024-05-23/) In June 2026 the firm announced plans to form a strategic partnership with the U.S. International Development Finance Corporation.[10](https://www.infrastructureinvestor.com/institution-profiles/i-squared-capital.html)
## References
1. [Pennsylvania PSERS Public Investment Memorandum, ISQ Global Infrastructure Fund III (2020)](https://www.pa.gov/content/dam/copapwp-pagov/en/psers/documents/board3/resolutions/2020/2020-31.pdf)
2. [I Squared Capital Appoints Gautam Bhandari as Global Chief Investment Officer, Business Wire (May 2023)](https://www.businesswire.com/news/home/20230519005039/en/I-Squared-Capital-Appoints-Gautam-Bhandari-as-Global-Chief-Investment-Officer)
3. [Infrastructure Investor cover story on I Squared (December 2024)](https://isquaredcapital.com/wp-content/uploads/2024/12/Infra_Cover_Story_DEC24.pdf)
4. [I Squared Capital Closes Its Largest Global Infrastructure Fund to Date at $15 Billion, Business Wire via OffshoreSource](https://offshoresource.com/business-wire/i-squared-capital-closes-its-largest-global-infrastructure-fund-to-date-at-15-billion/)
5. [Strategies, I Squared Capital](https://isquaredcapital.com/strategies/)
6. [Institutional Investors and Infrastructure Investing, The Review of Financial Studies](https://academic.oup.com/rfs/article/34/8/3880/6239714)
7. [Infrastructure firm I Squared to invest $5 bln in Asia over next three years, Reuters (May 2024)](https://www.reuters.com/business/finance/infrastructure-firm-i-squared-invest-5-bln-asia-over-next-three-years-executive-2024-05-23/)
8. [I Squared raises $10 billion so far for next infrastructure fund, Bloomberg (March 2026)](https://www.bloomberg.com/news/articles/2026-03-11/i-squared-raises-10-billion-so-far-for-next-infrastructure-fund)
9. [I Squared Capital nears $10bn milestone for flagship infra fund, Private Equity Wire](https://www.privateequitywire.co.uk/i-squared-capital-nears-10bn-milestone-for-flagship-infra-fund/)
10. [I Squared Capital, Institution Profile, Infrastructure Investor](https://www.infrastructureinvestor.com/institution-profiles/i-squared-capital.html)
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*Topic: Encyclopedia › Society and history › Economics and business › Finance › Venture capital and private equity*
*Initially written Sep 17, 2026 · Reviewed: Oct 10, 2026 · Edited: Oct 10, 2026; Oct 11, 2026; Oct 15, 2026 · Last review: Oct 10, 2026*
*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*
License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license