Infrastructure investing matters to anyone interested in the stock market or the economy as a whole. These seven infrastructure investment firms collectively manage over $400 billion and have emerged as decisive forces shaping the critical infrastructure that powers modern economies. Their massive capital deployment into essential services creates ripple effects throughout public markets, as their portfolio companies often serve as suppliers, customers, or competitors to publicly traded corporations. Investments at this scale can either constrain or accelerate broader economic development, so any investor can benefit from learning more about some of the best infrastructure investment firms.
7 Infrastructure Investment Firms to Know
- Global Infrastructure Partners – BlackRock’s $100 billion infrastructure platform focused on airports, energy assets, and AI infrastructure following the 2024 acquisition.
- Sempra Infrastructure – North American energy infrastructure platform valued at $25.9 billion, specializing in LNG export facilities and renewable energy networks.
- Tikehau Star Infra – U.S.-focused subsidiary of Tikehau Capital that develops public-private partnership projects across transportation, social, and telecommunications sectors.
- Igneo Infrastructure Partners – Global infrastructure manager with $20 billion AUM and 30+ years of experience investing in mature, cash-generating businesses across multiple sectors.
- Kohlberg, Kravis, Roberts & Co. – Major private equity firm managing over $83 billion in infrastructure assets across defensive, contracted revenue streams globally.
- Stonepeak – Independent infrastructure manager with $72 billion AUM specializing in hard assets including data centers, energy transportation, and telecommunications.
- NOVA Infrastructure – Middle-market infrastructure specialist with $565 million debut fund targeting operational value creation in North American environmental services, transportation, and energy assets.
Global Infrastructure Partners
BlackRock’s $12.5 billion acquisition of Global Infrastructure Partners (GIP) in 2024 marked the sector’s largest transaction to date. The deal combined GIP’s $100 billion in assets under management with BlackRock’s broader platform, creating infrastructure investing’s most formidable entity.
Founded in 2006 by Adebayo Ogunlesi and initially backed by Credit Suisse and General Electric, GIP built its reputation through landmark airport acquisitions, including Gatwick and Edinburgh. The firm’s $22 billion GIP IV fund represented infrastructure’s fundraising pinnacle when it closed in 2019.
Beyond airports, GIP’s portfolio spans energy infrastructure, including ADNOC Gas Pipelines and Freeport LNG, renewable assets like Terra-Gen Power, and digital infrastructure through CyrusOne data centers. BlackRock’s $30 billion Global AI Investment Partnership leverages GIP’s operational capabilities to target data center and energy projects supporting artificial intelligence demands.
Sempra Infrastructure
Sempra Infrastructure Partners, this platform emerged from the consolidation of Sempra LNG and Mexico’s IEnova. The entity attracted external capital through strategic partnerships: KKR acquired a 20% stake for $3.37 billion in 2021, followed by Abu Dhabi Investment Authority’s 10% acquisition for $1.73 billion.
The platform’s valuation reached $25.9 billion by 2022, including proportionate debt. Assets encompass up to 45 million tonnes per annum of LNG export capacity across North American coasts, renewable energy networks, and energy storage infrastructure. The business model centers on long-term contracts with investment-grade counterparties, providing cash flow stability while supporting North America’s energy infrastructure initiatives.
Tikehau Star Infra
Formerly Star America, this subsidiary of Paris-based Tikehau Capital focuses exclusively on public-private infrastructure partnerships in America. The platform emerged through Tikehau Capital’s 2020 acquisition of Star America Infrastructure Partners, founded by Bill Marino and Christophe Petit.
With investments exceeding $10 billion in total project costs as of December 2024, Tikehau Star Infra concentrates on transportation, social, environmental, and telecommunications infrastructure. Recent projects include redeveloping airports in the U.S. Virgin Islands and joining Plenary Americas’ broadband infrastructure initiatives. The firm raised $700 million through its Star America Infrastructure Fund II in 2019, targeting middle-market opportunities.
Igneo Infrastructure Partners
Operating as the direct infrastructure team within First Sentier Investors Group, Igneo manages $20 billion across global markets. The firm traces its origins to 1994, building a track record through 30-plus years of infrastructure investing across renewables, digital infrastructure, waste management, water utilities, and transportation.
Igneo’s strategy emphasizes proactive asset management of mature, cash-generating businesses. Recent transactions include acquiring U.S. renewable power producer Soltage and Portuguese toll-road operator Autovia Douro Litoral. European Diversified Infrastructure Fund I achieved 12.6% average net returns over its 15-year term, while European Diversified Infrastructure Fund III targets a €5 billion hard cap.
Kohlberg, Kravis, Roberts & Co.
KKR established its Global Infrastructure strategy in 2008, evolving into one of private markets’ most active infrastructure investors. The platform manages over $83 billion across global infrastructure strategies as of March 2025, spanning closed-end funds, separately managed accounts, and co-investment vehicles.
KKR’s approach emphasizes defensive assets with contracted or regulated revenue streams while capturing growth opportunities in telecommunications, energy transition, transportation, and waste sectors. The firm’s $16.6 billion Global Infrastructure Investors IV fund, closed in 2021, targets value-added investments across North America and Western Europe. Notable positions include Sempra Infrastructure’s minority stakes and natural gas assets like Genesis Energy.
Stonepeak
Founded by former Blackstone executives Michael Dorrell and Trent Vichie, Stonepeak has emerged as one of the largest independent infrastructure managers globally. The New York-based firm manages approximately $72 billion across infrastructure and real assets, deploying capital through defensive, hard-asset strategies.
Stonepeak’s portfolio spans data centers (Digital Edge in Asia), energy transportation (Teekay LNG’s $6.2 billion acquisition), and telecommunications (Astound Broadband’s $8.1 billion enterprise value transaction). The firm’s $3.3 billion Asia Infrastructure Fund closed in 2024, targeting diversified opportunities across communications, transport, and energy sectors (https://www.linkedin.com/company/stonepeakpartners). Blue Owl Capital’s $2 billion minority investment in 2023 valued Stonepeak at approximately $15 billion.
NOVA Infrastructure
NOVA represents the middle-market infrastructure segment, founded in 2017 by Chris Beall and Allison Kingsley following their departure from Oaktree Capital’s infrastructure platform. The firm closed its debut fund at $565 million in 2022, targeting differentiated opportunities between $20 million and $100 million in North American markets.
The platform focuses on environmental services, transportation, energy transition, and communications assets where operational improvements can drive value creation. Portfolio companies include Harbor Logistics (Charleston port services), DartPoints (data center operator across 11 facilities), and UGE (distributed solar and storage developer). NOVA’s hands-on approach combines creative deal sourcing with extensive industry relationships across target infrastructure sectors.
Learn More About Infrastructure Investing Firms
These firms illustrate infrastructure investing’s evolution from utility-focused strategies toward growth-oriented platforms capturing technology-driven transformation. Their combined scale and sector expertise position them as primary capital providers for the estimated $94 trillion global infrastructure investment requirement through 2040, particularly as artificial intelligence and energy transition demands reshape infrastructure priorities worldwide.
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