ArcLight Capital – Startup Investor Profile

General Info

ArcLight is a private equity firm focused on energy, infrastructure and energy transition.
Location: Boston
Country:
Industries:
Investment Regions:
Investment Stages: late-stage, series-a

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🤖 AI Activity Report

Status: very-active

AI Reasoning: ArcLight Capital has multiple investment/acquisition announcements in 2025, including the acquisition of Advanced Power (July 24, 2025) and a $1.0 billion investment by CPP in AlphaGen (October 2, 2025). The most recent known investment is the AlphaGen related investment announced October 2, 2025, which is less than 3 months prior to the reference date. The startup/company involved: AlphaGen (and Advanced Power). Based on the time difference from the most recent announcement, classify as very-active.

Here are the thresholds established for the different statuses:
Not Active – No known investments in the last 12 months.
Low Activity – Only known investments between the last 12 and 6 months.
Active – Known investments between the last 6 and 3 months.
Very Active – Known investments in the last 3 months.

Warm Intros from Portfolio Companies


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