Infrastructure Investors in Texas

Andros Capital Partners is a private investment firm focused on opportunities across the energy sector, with a strategy rooted in flexible, long-term capital deployment. Based in Houston, Texas, Andros invests across the upstream, midstream, and energy transition value chains. The firm seeks to back high-quality assets and management teams, applying deep industry expertise to generate strong, risk-adjusted returns. Andros takes a hands-on approach to value creation, actively partnering with companies to drive operational efficiencies, optimize asset performance, and capitalize on market opportunities. Its investment strategy spans both traditional energy—such as oil and gas—and emerging segments, including carbon capture, storage, and renewable energy infrastructure. This dual focus allows Andros to support the evolving energy landscape while maintaining core investment principles. Founded by seasoned professionals with decades of energy investment experience, Andros manages substantial capital commitments and maintains strong relationships across the energy and financial sectors. With a focus on North America, Andros Capital Partners positions itself as a strategic and adaptable partner for businesses seeking growth, transformation, or transition within the dynamic energy environment.

Arroyo Energy Investment Partners LLC, founded in 2003 and headquartered in Spring (Greater Houston), Texas, is an independent private equity firm specializing in power and energy infrastructure investments. With a Santiago, Chile office as well, Arroyo has deployed nearly USD 2 billion in equity across North America and Chile since its inception. They target utility-scale and distributed power generation—covering wind, solar, gas-fired, batteries, and LNG infrastructure—underpinned by long-term contracts and strong downside protection measures. Their investment style emphasizes active portfolio management: optimizing operations, monetizing arbitrage, and enhancing contract value. Arroyo operates via successive funds—Fund II (2015), III (2019), and most recently Fund IV (2025)—focusing on acquiring equity interests in existing energy infrastructure companies and late-stage projects. Fund IV closed July 1, 2025 with over USD 1 billion in equity commitments.

EnCap Investments is a Houston-based private equity firm that has been a cornerstone investor in the U.S. energy sector for over 35 years. The firm provides growth capital to independent companies across the energy value chain, with a strong emphasis on upstream oil and gas, midstream infrastructure, and energy transition opportunities. EnCap’s deep industry knowledge and disciplined investment process have enabled it to consistently deliver value to both portfolio companies and investors. With a long-standing history in oil and gas, EnCap has expanded its platform to include energy transition investments, targeting low-carbon solutions such as carbon capture, clean fuels, and renewable power. Through its dedicated energy transition platform, EnCap Energy Transition, the firm backs companies contributing to a more sustainable energy future while maintaining strong financial fundamentals. EnCap seeks to support management teams with capital, strategic guidance, and operational support to drive scalable growth. EnCap manages capital on behalf of a global base of institutional investors, including pensions, endowments, and sovereign wealth funds. The firm’s success is rooted in long-term partnerships, a focus on capital discipline, and an adaptive strategy that evolves with market dynamics. With more than $40 billion raised since inception, EnCap remains one of the most respected and active energy-focused private equity firms in North America.

Energy Capital Partners (ECP), founded in April 2005 by Doug Kimmelman, Thomas Lane and Scott Helm, is a private equity and credit investment firm headquartered in Summit, New Jersey. Over nearly two decades, the firm has raised more than $31 billion from over 600 limited partners and merged with Bridgepoint Group in August 2024 to expand its platform globally. ECP focuses on investments in power generation, renewable energy, energy storage, midstream gas infrastructure and environmental sustainability. Its portfolio includes high‑profile assets such as Calpine, Atlantica Sustainable Infrastructure, Biffa UK waste‑management, and the Terra‑Gen renewables platform. In 2025, it launched a $25 billion joint venture with Abu Dhabi’s ADQ to deliver behind‑the‑meter power infrastructure for data centers, complementing a separate $50 billion global collaboration with KKR. As of early 2024, ECP manages approximately $19–20 billion in assets, with 80–90 employees worldwide. The firm targets infrastructure opportunities across North America and is expanding into Europe, Asia and Japan through strategic partnerships and selective acquisitions.

Five Point Infrastructure Partners (Five Point) is a private equity and infrastructure investment firm based in Houston, Texas, that concentrates on North American energy and sustainable infrastructure projects. Established in 2012 (originally as Five Point Energy) by industry veterans led by CEO David Capobianco, Five Point has approximately $8 billion in assets under management across multiple funds. The firm’s investment mandate spans “powered land” (renewable power and data infrastructure), water management, midstream energy infrastructure, and other sustainable infrastructure segments. Five Point distinguishes itself through a long-term, build-and-grow strategy: it creates and scales platform companies from the ground up, often in partnership with experienced management teams, rather than relying solely on buying mature assets. Notable enterprises created include WaterBridge Resources (water infrastructure) and Northwind Midstream (CO₂ and sour gas infrastructure). The firm provides equity investments up to $1 billion per deal and often remains a significant partner through the full growth lifecycle of its portfolio companies.

Greenbelt Capital Partners is a private equity firm founded in 2022 to invest in companies enabling the global transition toward cleaner, more resilient and electrified energy systems. Led by veterans Chris Manning and Glenn Jacobson, the Austin‑based firm targets middle‑market businesses in sectors such as grid modernization, power generation, industrial electrification, digital infrastructure and energy efficiency. Greenbelt closed its inaugural Greenbelt Capital Partners III fund at US$1 billion in June 2025, bringing total assets under management to roughly US$2.5 billion. The team has decades of experience, having collectively deployed more than US$6 billion of equity capital and executed over US$70 billion in transactions. Greenbelt’s investment approach blends operational support with capital, aiming to help portfolio companies scale sustainably and benefit from long‑term megatrends like decarbonization and electrification. The firm maintains offices in Austin and New York and counts pension funds, sovereign wealth funds and insurance companies among its limited partners. Greenbelt positions itself as a value‑driven partner, seeking commercially successful companies that also contribute to a more sustainable and reliable energy future.

Pennybacker Capital Management is a private investment firm specializing in real assets and alternative strategies. With a disciplined focus on real estate and credit opportunities, the firm identifies undervalued assets and drives long-term value through active management and data-driven insights. Since its founding, Pennybacker has built a strong reputation for combining institutional-grade processes with an entrepreneurial culture. Its team leverages deep market expertise, innovative technology, and rigorous research to uncover opportunities across multiple asset classes and cycles. Headquartered in Austin, Texas, Pennybacker Capital operates across the United States, targeting growth markets and emerging sectors. The firm maintains a commitment to responsible investing, capital preservation, and sustainable performance for its institutional and private investors.

Post Oak Energy Capital is a Houston-headquartered private equity firm founded in 2006. With a core focus on upstream oil & gas, midstream infrastructure, oilfield services, and mineral rights across North America, the firm teams up with experienced energy executives to support growth and value creation. The firm employs a hands-on, aligned-investment approach—linking incentive compensation to equity value creation—by working closely with portfolio management teams. It leverages its energy expertise to add strategic, operational, and financing support, particularly through structuring equity and advisory-led partnerships in core producing basins. Post Oak actively manages a diversified portfolio, including direct upstream companies, midstream services, and mineral/royalty assets. Notably, it participates institutional equity rounds (e.g. Quantent Energy Partners in September 2024) and continuously acquires mineral interests—over 85,000 net royalty acres in the Permian and Haynesville regions.