I Squared Capital

What I Squared Capital does

I Squared Capital is an independent global infrastructure investment manager founded in 2012 and headquartered in Miami, Florida. The firm manages approximately $60 billion in assets under management (AUM) and operates across five core investment strategies: Global Equity, Growth Markets, Energy Transition, Infrastructure Credit, and InfraTech. With 360+ employees across nine global offices, I Squared invests in more than 70 countries and operates a portfolio of 100+ companies spanning digital infrastructure, renewable energy, transportation, utilities, and social infrastructure.

The firm's underlying platform combines traditional fund management infrastructure with sector-specialized operating expertise. Its strategies span control buyouts and growth equity in operating infrastructure assets, dedicated renewable power and energy transition platforms, direct lending and structured credit solutions, and technology-enabled infrastructure businesses. Notable portfolio holdings include Cogent and Elea Data Centers, Liberty Tire Recycling, Ramudden Global, Inkia Energy, Cubico Sustainable Investments, Absolute Energy (Italy), Oriden, and Cube Grid (India).

I Squared's business model follows standard private equity economics applied to infrastructure. It raises capital from institutional limited partners — including sovereign wealth funds (Public Investment Fund of Saudi Arabia), pension funds (Canada Pension Plan, AustralianSuper Rest), and development finance institutions (U.S. DFC, IFC, AIIB, TAEFA) — and deploys that capital via buyouts, growth equity, and credit into portfolio companies. Revenue is generated through management fees (typically 1–2% of committed or invested capital) and carried interest on realization events. The firm is currently raising its latest flagship equity fund, which is approaching $10 billion in commitments against a $15 billion target, and has won 30 Infrastructure Investor Awards over the past decade including four Fund Manager of the Year honors.

Name

I Squared Capital

Legal name

I Squared Capital

Website

https://isquaredcapital.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

251–500 employees

Short description

I Squared Capital is a Miami-based independent infrastructure investment manager founded in 2012 with ~$60B AUM across five strategies and 100+ portfolio companies in 70+ countries, serving institutional LPs with equity, credit, and energy transition offerings.

Ownership category

akta.pro rank

Headquarters

HQ city

Miami

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Infrastructure Fund Management Fees: Recurring management fees earned on assets under management across multiple flagship funds (ISQ Global Infrastructure Fund I, II, III, Growth Markets Infrastructure Fund, Energy Transition Infrastructure Fund, InfraTech® Fund, and ISQ Global Infrastructure Credit).
2. Performance Fees / Carried Interest: Performance-based fees and carried interest on successful exits and platform realizations across the firm's infrastructure investment vehicles, including continuation vehicle transactions such as the $3.4 billion Inkia Energy deal.
3. Wealth Platform Distribution Fees: Fee-based revenue from the ISQ OpenInfra wealth platform that provides financial advisors and individual investors access to private infrastructure investments through registered investment advisor entities.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

I Squared Capital is an independent global infrastructure investment manager that raises and manages private infrastructure funds across five strategies (Global Equity, Growth Markets, Energy Transition, Infrastructure Credit, and InfraTech). The firm sources, underwrites, builds, and divests mid-market infrastructure platforms in energy, utilities, transport and logistics, digital, environmental, and social sectors, and distributes investment access to institutional limited partners and, via the ISQ OpenInfra wealth platform, to financial advisors and individual investors. Revenue is generated from management fees, carried interest, and wealth platform distribution fees across approximately $60 billion in AUM.

Differentiator

Problem solved

Functional benefit

Brands

• ISQ OpenInfra: I Squared's proprietary wealth platform that provides eligible investors with direct access to the firm's private infrastructure portfolio.
• ANZA Power
• Radiant Energy Solutions
• Cube Grid
• U.S. AI Inference and Edge Colocation Data Center Platform
• nLighten
• HEXA Renewables
• THINK-AG&P

Products and services

• Global Equity Strategy Acquires and builds companies through a platform development approach, cultivating a diversified mid-market and larger infrastructure equity portfolio across sectors and regions with emphasis on low correlation, downside protection, and risk-adjusted returns driven by the proprietary risk model. Designed for institutional LPs seeking long-duration, inflation-linked equity exposure to private infrastructure.
• Growth Markets Strategy Acquires critical infrastructure assets within select high-growth economies with the potential to increase productivity and promote economic growth, with I Squared's investments in emerging economies representing $18 billion in enterprise value across 12 countries in energy, utilities, transport, digital, and environmental sectors. Designed for institutional LPs seeking emerging markets infrastructure exposure.
• Energy Transition Strategy Global investor in energy transition infrastructure with over $7.2 billion in commitments, focusing on North America, Europe, and Asia-Pacific across renewables, storage, and clean energy platforms, partnering with mid-sized companies using a platform approach. Designed for institutional LPs seeking decarbonization-aligned infrastructure equity exposure.
• Infrastructure Credit Strategy Provides custom infrastructure financing solutions with focus on current cash yield and downside protection, targeting both new and existing ventures with secured investments within thriving economies. Includes a structured solutions strategy launched November 2025 to expand offerings beyond traditional infrastructure equity and credit. Designed for institutional LPs seeking yield-oriented private infrastructure debt.
• InfraTech® Strategy Identifies innovative technology companies disrupting the infrastructure value chain, leveraging direct access to I Squared's portfolio of infrastructure companies during diligence to gain product testing and commercial consideration feedback that reduces market acceptance risk. Designed for institutional LPs and growth-stage technology companies seeking infrastructure-domain validation and capital.
• ISQ OpenInfra Wealth Platform Proprietary wealth platform that provides eligible investors with direct access to I Squared Capital's private infrastructure portfolio, encompassing essential assets in transportation, energy, digital networks, and environmental services, designed to bring institutional-quality mid-market infrastructure investments to the private wealth market through financial advisors.

Quantifiable outcome

• $60 billion in assets under management
• +5 more outcomes

Named customers20 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered flagship and core.

• GS E&CflagshipStrategic or Co-development Partner · 22 June 2026MoU signed to establish a joint venture in South Korea focused on renewable energy projects (solar power and battery energy storage systems), targeting 1.5 GW of renewable energy assets by 2035 (approximately 820 MW solar). Total investment estimated at around 3 trillion won ($1.95 billion). GS E&C leads development, permitting and site acquisition through a DevCo, with I Squared providing global infrastructure investment expertise.
• CAIA AssociationcoreGTM or Marketing Partner · 1 June 2026Collaboration on the CAIA.nxt Infrastructure Microcredential, an online self-paced program to help investment professionals better evaluate, access and allocate to infrastructure investments. Developed with I Squared Capital and HarbourVest Partners, launching June 2026 as part of CAIA.nxt ecosystem.
• Dineshchandra Group (DRAIPL)flagshipStrategic or Co-development Partner · 21 May 2026Strategic partnership to develop Cube Grid, a $1 billion India power transmission platform. DRAIPL is an established infrastructure developer with five decades of experience delivering large-scale projects across India, Australia, West Asia and Africa. Provides local execution capabilities and regional market knowledge. Extended relationship from prior Cube Highways partnership.
• Aberdeen InvestmentscoreGTM or Marketing Partner · 13 May 2026Sponsored content webinar collaboration with I Squared Capital discussing global infrastructure investing strategies. Aberdeen targets lower middle market equity investments of €50-100 million in Europe while I Squared focuses on middle market companies valued $300M-$1.5B globally.
• Latham & WatkinsflagshipImplementation/ SI/ Consulting Partner · 27 January 2026Legal advisor to I Squared Capital on the acquisition of FAS Renewables and launch of Radiant Energy Solutions, marking entry into the Middle East distributed renewables market.
• GoogleflagshipStrategic or Co-development Partner · 23 October 2025Corporate offtake partnership with Low Carbon Infrastructure (LCI), an I Squared Capital portfolio company, to develop Broadwing Energy, a 400 MW natural gas-fired power plant with carbon capture and storage (CCS) in Decatur, Illinois. Google signed a first-of-its-kind corporate agreement to purchase most of the power, supporting over 90% CO2 capture and storage. Commercial operations targeted for 2030.
• Low Carbon Infrastructure (LCI)flagshipStrategic or Co-development Partner · 23 October 2025LCI is an I Squared Capital portfolio company developing Broadwing Energy, a 400 MW natural gas-fired power plant with carbon capture and storage on an Archer Daniels Midland (ADM) site in Decatur, Illinois. ADM operates the EPA-approved Class VI sequestration wells more than a mile underground. The facility targets commercial operation by early 2030.

Scale indicators14 records

Recent moves12 records

Expansion highlights5 records

Direct peers

• Brookfield Asset Management: Largest global infrastructure investor with Brookfield Infrastructure Partners and extensive mid-market and large-cap infrastructure strategies. Most direct comparable given global scope, sector breadth (energy, transport, digital), and similar platform-building investment approach.
• KKR Global Infrastructure: Major infrastructure equity and credit investor with global platform spanning core and core-plus assets. Competes directly with I Squared across energy transition, digital infrastructure, and transport sectors, including as a rumored co-bidder on Re Sustainability and KPC pipeline assets.
• Blackstone Infrastructure: Multi-billion-dollar infrastructure platform investing across energy, transport, digital, and social infrastructure globally. Partnered with I Squared on the abandoned Ströer bid and competes for similar large-cap platform deals.
• Macquarie Asset Management (MIRA): Pioneer of infrastructure investing with MIRA platform managing over $200B in infrastructure assets. Closest peer in mid-market and core-plus infrastructure investing globally with similar sector breadth and platform approach.
• Stonepeak: U.S.-focused infrastructure investor with growth, energy transition, and credit strategies. Ben Harper, I Squared's Head of Sustainability, joined from Stonepeak. Similar mid-market focus and energy transition thematic exposure.
• EQT Infrastructure: European-headquartered infrastructure platform with global mandate across energy, transport, digital, and social infrastructure. Competes for similar large infrastructure transactions and has comparable mid-market focus.
• IFM Investors: Australian infrastructure investor owned by pension funds, operating globally with infrastructure equity and credit strategies. Comparable institutional LP base and mid-market infrastructure platform approach.
• Ardian Infrastructure: Global infrastructure investor with significant European presence; acquired Energia Group from I Squared for ~€2.75B. Direct secondary buyer relationship and active competitor in mid-market European infrastructure deals.

Broad incumbents

• Global Infrastructure Partners (BlackRock): Now part of BlackRock, GIP is a leading global infrastructure investor with mega-fund scale. Competes for the largest infrastructure transactions and provides a strategic threat to I Squared in upper-mid-market deals.
• Carlyle Global Infrastructure: Global infrastructure equity and credit platform within Carlyle, with significant energy transition and digital infrastructure exposure. Comparable institutional fundraising model and platform approach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/i-squared-capital

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries24 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A35 records

Investments33 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about I Squared Capital