What OIC does

OIC (Orion Infrastructure Capital), formerly Orion Energy Partners, is a US-based private infrastructure capital solutions firm founded with its first independent fund close in 2016 and headquartered in New York, with additional offices in Houston (energy corridor coverage) and London (Mayfair). The firm provides flexible credit, equity, and growth capital to middle-market private companies and family-owned businesses that are developing and scaling sustainable infrastructure across eight target sub-sectors: digital infrastructure (datacenters, transmission and distribution, grid networks, telecoms), waste and recycling, energy efficiency, social infrastructure, renewable fuels (RNG, hydrogen, green chemicals), sustainable power (distributed energy resources, storage, carbon capture), transportation/mobility/storage, and food systems and agriculture. Investments are structured around hard-asset collateral and supported by dedicated risk-mitigation, value-optimization, and investment-strategist teams operating within a stated "capital partnership model" that pairs capital with operational expertise and industry connectivity.

The firm's commercial model is fund management. OIC raises capital from global institutional investors — including those in the US, Middle East, Europe, and Asia — and deploys it through closed-end vehicles plus, since October 2025, a wholly owned energy storage development and operation subsidiary called Asset Vault. Its largest vehicle, Credit Opportunities Fund IV, closed at $1.58 billion in March 2026, exceeding its $1.1 billion target by 43% and achieving a ~90% re-up rate from Fund III institutional investors; over $500 million of that fund was raised through an inaugural rated note feeder, and more than 30% of the fund has already been committed across five seed deals in LNG, port logistics, datacenters, and renewable fuels. Revenue is generated through traditional fund management economics — management fees on committed and deployed capital and, when realized, carried interest on investment performance — and pricing for both LP allocations and portfolio company capital is quote-based and undisclosed.

The firm serves two distinct customer sets. On the supply side, institutional LPs allocate capital to OIC funds for exposure to sustainable-infrastructure credit and equity returns; on the deployment side, mid-market private companies — examples include Nova Compression, USFibers, DartPoints, CargoBeamer, Gevo, Nexus W2V, MidCentral, and Asset Vault — receive structured capital to grow. Over ten years the platform has completed more than 50 investments across its eight sub-sectors, supported by a team of 50+ across New York, Houston, and London, and operates with PRI-aligned ESG governance and dedicated investor-relations (IDEA Group) and capital-markets functions.

Name

OIC

Legal name

OIC, L.P.

Website

https://oic.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

OIC (Orion Infrastructure Capital) is a US-based private infrastructure capital firm that provides credit, equity, and growth capital to middle-market companies developing sustainable infrastructure across digital, energy, waste, transportation, and food systems sectors, serving global institutional investors and mid-market borrowers.

Ownership category

akta.pro rank

Product category

Infrastructure Capital Solutions / Private Equity

NAICS

Other Investment Pools and Funds (5259), Funds, Trusts, and Other Financial Vehicles (525), Credit Intermediation and Related Activities (522)

SIC

Investors, Nec (6799), Miscellaneous Business Credit Institution (6159)

akta.pro primary industry

Infrastructure & Project Finance Private Debt (FSANADAH)

akta.pro secondary industries

Sustainable Private Markets (Impact PE/VC, Private Credit, Infrastructure) (FSAAALAG), Infrastructure Debt Funds (FSANAEAL)

Keywords

• Infrastructure capital solutions
• Middle-market private credit
• Sustainable infrastructure investing
• Growth capital partnerships
• Private infrastructure funds

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Fund Management: OIC manages private infrastructure funds, generating revenue through management fees and carried interest from fund investments. The firm closed Credit Opportunities Fund IV at $1.58 billion, its largest fundraise to date.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

OIC provides flexible credit, equity, and growth capital solutions to middle-market private companies and family-owned businesses developing sustainable infrastructure. The firm manages private infrastructure funds (most recently Credit Opportunities Fund IV at $1.58 billion) and invests across eight key sectors: digital infrastructure, waste and recycling, energy efficiency, social infrastructure, renewable fuels, sustainable power, transportation/mobility/storage, and food systems/agriculture.

Product overview

OIC (Orion Infrastructure Capital) is a North American infrastructure capital solutions firm operating as a unified investment platform rather than a segmented product architecture. The company provides flexible credit, equity, and growth capital solutions to middle-market private companies and entrepreneurs. The core offering is the Capital Solutions Platform complemented by the Credit Opportunities Fund IV (middle-market infrastructure credit fund), the Asset Vault subsidiary (energy storage asset development platform), and an ESG Policy Framework. OIC's investment strategy focuses on eight key sectors including digital infrastructure, renewable fuels, sustainable power, waste and recycling, and transportation, with the stated goal of generating strong financial returns while supporting environmental and social innovation in infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Credit Opportunities Fund IV Middle-market infrastructure credit investment fund that closed at $1.58 billion, representing OIC's largest fundraise to date, providing flexible credit capital to companies across sustainable infrastructure sectors including LNG, port logistics, datacenters, and renewable fuels.
• Asset Vault Energy storage asset development, ownership, and operation platform launched as a subsidiary in partnership with Energy Vault, managing grid-scale storage projects across the US, Europe, and Australia.
• Infrastructure Capital Solutions Platform

Quantifiable outcome

• Fund IV exceeded $1.1 billion target by 43%
• +2 more outcomes

Named customers9 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered core.

• Nazar MassouhcoreOthersCEO Nazar Massouh noted the Fund IV milestone marks ten years since OIC's first independent fund close, completing over 50 investments across its platform.
• Gerrit NicholascoreOthersPromoted to Executive Chairman as part of key leadership promotions reflecting the firm's growth and commitment to talent development.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Brookfield Infrastructure Partners: Brookfield Infrastructure is one of the largest global infrastructure investors with multi-billion-dollar funds spanning credit, equity, and direct asset ownership. It is broadly comparable to OIC's mandate of providing credit, equity, and growth capital across infrastructure sectors, but at meaningfully larger scale and broader geographic footprint.
• KKR Global Infrastructure: KKR's Global Infrastructure platform deploys capital across infra debt, equity, and direct ownership globally. While significantly larger, it overlaps directly with OIC's flexible infrastructure credit products targeting mid-market sustainability-themed projects.
• Macquarie Asset Management (Green Investment Group): Macquarie's Green Investment Group invests across renewable energy and sustainable infrastructure debt and equity. It overlaps with OIC's sustainable-power, transport, and RNG sectors, though at much larger scale and broader geographic scope.
• Blackstone Infrastructure Partners: Blackstone Infrastructure Partners invests across infrastructure debt, equity, and direct asset ownership at scale. While a much larger incumbent, it has been expanding into mid-market sustainable infrastructure debt — the same opportunity set OIC serves.

Direct peers

• Stonepeak: Stonepeak is a leading infrastructure-focused private equity firm managing tens of billions across credit, growth, and core infrastructure strategies. Like OIC, Stonepeak provides flexible infrastructure capital to middle-market companies across digital, energy, and transport, making it a close direct peer in mandate and structure.
• I Squared Capital: I Squared Capital is a global infrastructure private equity manager investing across debt and equity in mid-to-large infrastructure assets. It mirrors OIC's mid-market focus and diversified sector coverage (digital, energy, transport, environmental), competing directly for the same entrepreneurial-led deal flow.
• Antin Infrastructure Partners: Antin Infrastructure Partners is a dedicated infrastructure private equity firm operating multiple funds across mid-market infrastructure in Europe and North America. It shares OIC's fund-based credit-plus-equity approach and mid-market orientation in energy, digital, and transport infrastructure.
• Energy Capital Partners: Energy Capital Partners is a private investment firm focused on power, energy, and infrastructure, deploying debt and equity across the energy transition value chain. It is highly comparable to OIC's energy/sustainable-power subsector focus and middle-market deal size.
• Greenbelt Capital Partners: Greenbelt Capital Partners is an infrastructure-focused investment manager focused on the energy transition and digital infrastructure. It is closely comparable to OIC's middle-market credit-plus-equity model and North American infrastructure strategy.

Emerging players

• Generate Capital: Generate Capital is a specialty financier providing debt and equity for sustainable infrastructure including distributed energy, storage, mobility, and waste. It is highly comparable to OIC's sustainable infrastructure mandate and middle-market entrepreneur-led partnership model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/orion-energy-partners

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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

M&A

Investments56 records

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

Frequently asked questions about OIC