Arc Light Securities
Private equityBoston · 62 people tracked
Also known as ARCLIGHT CAPITAL PARTNERS, LLC
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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 Sep 29, 2026.
Team · 62 people
from the firm's website & curatedWhat they invest in
from 9 of 103 portfolio companiesEnergy ×9Cleantech ×7Climate Tech ×4Impact & Social Good ×2Mobility & Transportation ×2Cloud Computing ×1Enterprise Software ×1Hardware ×1
HQs:United States×9
Investments · 103 tracked
founders shown can be your intro pathBy year:2025 · 12022 · 12 dated
Kinder Morgan provides energy transportation and storage services across North America, delivering natural gas, crude oil, refined products, and other energy commodities through pipelines and terminals for residential, commercial, and industrial customers.
EnergyLogistics & Supply ChainHouston, US
Richard D. Kinder(Executive Chairman, Co-founder)inKimberly Dang(CEO)
Co-investorsKelso
Caithness Energy is an independent power producer that develops, acquires, and operates utility-scale power generation assets across North America, including renewable energy projects in wind, solar, and geothermal as well as natural gas generation.
CleantechEnergy
James D. Bishop, Jr.(Chairman, Chief Executive Officer and President)
Enstor owns and operates underground natural gas storage facilities in the Gulf Coast and Southwest regions of the United States, providing storage and related services to help market participants manage supply and price volatility.
Energy
Paul Bieniawski(Chief Executive Officer)inRene CasadabanJennifer JohnsonKJ Ko(Chief Commercial Officer)inSean Rochein
Great River Hydro operates 13 hydroelectric generating stations across New England with a combined capacity of 589 megawatts, serving over 200,000 homes.
CleantechClimate TechEnergyImpact & Social GoodWhite River Junction, US
Erin A. O'Dea(President and CEO)in
Largest solar and storage operator in Puerto Rico with a controlled pipeline of ~1 GW.
Inspiration Mobility provides fleet management, vehicle leasing, EV charging, and clean energy infrastructure solutions focused on sustainability.
CleantechClimate TechEnergyEnterprise SoftwareMobility & Transportation
Josh Green(Founder and CEO)in
LRE is a clean energy company that develops renewable energy projects and operates with a focus on diversity, employee development, and sustainable business practices.
CleantechClimate TechEnergyImpact & Social GoodTexas, US
Takanock develops permanent, grid-connected power generation for data centers, configured to bypass the interconnection queue and bring new load online ahead of utility timelines.
CleantechCloud ComputingEnergyTraverse City, US
Kenneth DeNoyer Davies(Executive Officer, Director)Adam Smith(Executive Officer)inMichael Jake Carite(Executive Officer)
BoardJake Erhard(Director)James Sullivan(Director)Brian Giaquinta(Director)
Co-investorsMichigan RiseDigitalBridge
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 & TransportationSchenectady, US
Paul Gioupis(CEO)in
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
AL Gulfcoast TerminalsAL-PerdidoArkoma Pipeline PartnersAtlantic Power HoldingsBayonne Energy CenterBGH HoldingsBig Sandy Equipment Co.Bizkaia HoldingsBlack Bear PowerBronco Midstream HoldingsCamelback MidstreamCardinal Power FundingCatalyst Old RiverChief PowerClean Computational InfrastructureColusaCPV Wind VenturesCrawfish CogenDG PowerDigital GenerationEastern GenerationElevateElevate RenewablesElevaterenewablesenergyEpsilon PowerEscalade EnergyFort Point PowerG3 Global EnergyGCXGeneration BridgeGrant Peaking PowerGreat Point PowerGriffith EnergyGulf Coast ExpressHurrikan PowerInfinigenKey EnergyKGen PowerKleenLea PowerLibertyLiberty Bell PowerLightstone GenerationLightyear HoldingsLincoln Peaking PowerLodi HoldingsLodi Holdings IILong BeachLordstownMagellan Power HoldingsMesquite PowerMichigan PowerMidcoast EnergyMiddletown PowerMidland Cogeneration VentureMountaineer Gas HoldingsMYR GroupNational Energy and TradeNavy PowerNeoElectra – FranceNeoElectra – SpainNGPLNorth Sea InfrastructureNorth Sea Midstream PartnersOnPointOrcaParkwayPetrotankPhoenix RenewablesPike HoldingsPomifer Power FundingPridePrometheus Energy HoldingsRedwood II and IIIReNu PowerRepublic Midstream HoldingsRidgeline Midstream HoldingsSaber MidstreamSalamancaScrubgrassSequiturShoreSoutheast PowergenSouthern PinesSun Peak Power HoldingsTailrace Hydro HoldingsTerra-Gen PowerThird Coast CVThird Coast MidstreamThunderbird RenewablesToga Offshore Infrastructure PartnersVenango Power / ScrubgrassWaterside Power
Exits · 1
1 IPOsKinder MorganNYSE: KMI
Frequently asked questions
- How many investments has Arc Light Securities made?
- Arc Light Securities has 103 tracked investments, 1 of which have exited, including 1 dated in the last 24 months.
- 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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