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Arclight Overview

ArcLight Capital Partners, LLC is an experienced, middle-market value-add infrastructure investment firm with a successful track record across seven investment funds. Founded in 2001, ArcLight helped establish infrastructure as an asset class by pioneering a private equity approach to investing in infrastructure. The firm has since committed more than $27 billion In capital, including significant investments into the power, renewables, strategic gas, and transformative infrastructure sectors. Based in Boston, ArcLight's investment team employs a value-added, operationally intensive investment approach that benefits from its dedicated in-house technical, operational, and commercial specialists and partners, as well as the firm's approximately 1,800-person asset management partner.




North America

HQ Location

Boston, MA

BuildRI Category Rating


Responsible Investment Rating


Value Builder Rating


Stakeholder Rating


Key Value Builder Features1

  • Focused Digital Strategy
  • In-house Digital Expertise
  • Operational Improvement Strategy
  • Dedicated Operational Improvement Team

1. Key Value Builder Features are determined by the BuildRI research team based upon publicly-available information and input from 3rd parties, including the firm in certain circumstances.

Value Creation Examples


Contributing Source: ESG Report

As a natural gas storage services provider, Enstor's commitment to diversity stands out as it extends across all echelons of this organization. In 2021, 33% of participants its annual internship program identified as either women or underrepresented minorities. In 2022, Enstor introduced new diversity goals to build upon its existing progress, maintain its dedicated focus on DEI, and expand on initiatives across various facets of the company, with a particular emphasis on recruitment, promotion, and fostering an inclusive operational environment. The company's program has garnered recognition from internal and external stakeholders, including ArcLight, Enstor employees, and industry leaders. In July 2021, the Southern Gas Association commended Enstor for its unwavering commitment to DEI, highlighting the contributions of its senior leadership; and in November 2021, the Houston Chronicle recognized Enstor as a Regional "2021 Top Place to Work."


Contributing Source: 2022 ESG Report

Zeem is an innovative fleet-as-a-service provider that offers battery-electric commercial trucks, vans, and shuttle buses for a flat monthly fee, priced less than the cost to operate a typical diesel fleet. In June 2022, Zeem launched its first depot based at Los Angeles International Airport, providing nearly 100 EVs for fleet customers and 8 MW of charging capacity across 77 fast charging ports and 53 Level 2 chargers at full planned capacity, making it the largest private commercial EV charging facility in the U.S. Through partnerships, Zeem plans to co-develop additional charging and service depots at strategic locations throughout the country.

Notice: The information provided is for informational, non-commercial purposes only, does not constitute investment advice and is subject to conditions available in our Legal Disclaimer. Usage as a credit rating or as a benchmark is not permitted. Unless otherwise explicitly agreed in writing, usage for products and services, index creation, derivative work, portfolio or fund management, or any other usage are not permitted. By way of exception, usage is permitted only to the rated company, limited to a single reference of its own information in annual reporting and sustainability website, mentioning BW ESG Corp as a source. BW ESG Corp incorporates the use of publicly-disclosed information from Asset Managers in its publicly-available scoring platform.