Arc Light Securities
Private equityBoston
Also known as ARCLIGHT CAPITAL PARTNERS, LLC
Investment thesis
ArcLight invests in energy and power infrastructure critical to the energy transition and the digital economy. Its strategy targets megatrends including tightening power markets driven by electrification and data center demand, increasing renewables and battery storage penetration, the long-term role of natural gas transmission, storage and LNG, and the growing premium for strategic hard assets. The firm provides value-added operational, technical, commercial, and regulatory capabilities across solar, wind, battery storage, transmission, and gas power, positioning assets to support the energy transition and data center opportunities.
Source: firm website, verified Aug 18, 2026.
What they invest in
from 8 of 102 portfolio companiesEnergy ×8Cleantech ×6Climate Tech ×3Mobility & Transportation ×2
HQs:United States×4
Investments · 102 tracked
founders shown can be your intro pathKinder Morgan is an energy infrastructure company that operates in the transportation and storage of energy, while investing selectively in energy transition initiatives.
Energy
Kimberly Dang(CEO)
Co-investorsKelso
Caithness Energy develops, builds, and manages power generation projects across the United States, primarily combined cycle and peaker plants.
CleantechEnergy
Internally developed utility-scale BESS platform with a 5 GW pipeline.
Enstor is an independent natural gas storage operator running six storage facilities across four U.S. states, with connections to major pipelines and supply and demand markets.
Energy
Natural gas pipeline operated by Kinder Morgan providing residue gas takeaway from the Permian Basin to US Gulf Coast markets.
Great River Hydro operates 13 hydropower generating stations and 3 storage reservoirs along the Connecticut and Deerfield Rivers, producing on-demand renewable electricity for New England's power grid.
CleantechClimate TechEnergy
Portfolio of nine natural gas-fired power generation facilities serving New Jersey and Maryland load centers.
2 bcf/d gas transmission system connecting Permian Basin production to Gulf Coast demand centers and LNG export.
Renewable energy platform formed in 2021 to develop and operate assets across North America, Central America, and the Caribbean, including solar assets in Puerto Rico.
Largest solar and storage operator in Puerto Rico with a controlled pipeline of ~1 GW.
Inspiration Mobility Group is a specialist platform combining electric fleet management with charging infrastructure to help organizations transition their fleets to electric vehicles.
CleantechEnergyMobility & Transportation
Leeward Renewable Energy (LRE) develops, owns, and operates wind, solar, and battery energy storage facilities across the United States, with 30+ operating projects and more under development.
CleantechClimate TechEnergy
Zeem provides electric vehicle charging infrastructure and services for commercial fleets, including its MyGrid solution that delivers engineered charging skids, substations, and installation to customer facilities.
CleantechEnergyMobility & Transportation
Exits · 1
IPOs and acquisitions across the tracked portfolioKinder MorganNYSE: KMI
Frequently asked questions
- How many investments has Arc Light Securities made?
- Arc Light Securities has 102 tracked investments.
- What sectors does Arc Light Securities focus on?
- Arc Light Securities focuses on Cleantech, Climate Tech, Crypto & Web3, Energy, New Materials.
- Where is Arc Light Securities located?
- Arc Light Securities is headquartered in Boston, US.
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