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iSun, Inc.: Business Overview, Financials & Competitive Analysis

iSun has operated since 1972 as a solar energy and electrification technology company, providing a comprehensive suite of solar services across residential, commercial, industrial, municipal, and utility scale project...

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What's in This Report
iSun, Inc. OverviewStrategic ProfileCompetitive LandscapeIndustry ContextKey facts
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3/ 10Challenged

Cyborg Score thesis

Post-bankruptcy restructuring with heavy reputational damage presents high execution risk despite renewal under experienced...

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Industry Renewable Energy and Solar Installation Services
3 named competitors
3 recent developments
11 analyst dimensions
Synthesized from analyst-debate stress-testing across 11 dimensions and hundreds of data points. Methodology →
Cyborg Score recalibrated: July 6, 2026
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iSun, Inc. Overview

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iSun has operated since 1972 as a solar energy and electrification technology company, providing a comprehensive suite of solar services across residential, commercial, industrial, municipal, and utility scale projects, along with solar EV charging solutions. The company has installed over 400 megawatts of solar systems for Fortune 500 companies.

Strategic Profile

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In August 2024, Siltstone Capital acquired iSun for $10 million, with the company operating under parent entity Original Clean Energy. The commercial division rebranded as Legacy Power to distance itself from reputational damage. The company is pursuing organic growth and profitability-focused operations in northern New England and New York after emerging from bankruptcy restructuring.

Competitive Landscape

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iSun ranks among leading commercial solar contractors in the Northeastern United States. The company competes against regional solar installers and national EV charging infrastructure providers. Competitors include traditional electrical contractors and solar-focused companies operating in similar geographic markets.

Industry Context

iSun, Inc. operates in Renewable Energy and Solar Installation Services.

Key facts

Founded: 1972 · Headquarters: Williston, Vermont, United States · Employees: 201

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Recent developments

Material events tracked by the AskCyborg corpus.

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Named competitors

Pulled from the analyst-debate framework. Click any competitor to see their Cyborg Score.

SunrunResidential solar and EV charging services→SunnovaSolar energy systems and services→Vivint SolarResidential solar solutions→

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Industry context

iSun, Inc. operates in Renewable Energy and Solar Installation Services. See how the rest of the sector scores on the Cyborg framework.

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Frequently asked questions

What does iSun, Inc. do?+
iSun has operated since 1972 as a solar energy and electrification technology company, providing a comprehensive suite of solar services across residential, commercial, industrial, municipal, and utility scale project...
What is iSun, Inc.'s Cyborg Score?+
iSun, Inc. has a Cyborg Score of 3/10 (Challenged). The score synthesizes business model, financials, leadership, competitive position, technology, marketing, and ESG dimensions across hundreds of data points.
Who are iSun, Inc.'s main competitors?+
Named competitors include Sunrun, Sunnova, Vivint Solar. The full competitive landscape is in the AskCyborg report.
How can I get the full iSun, Inc. research report?+
Get the report plus analyst-debate audio at askcyborg.com -- no credit card required for preview access. Pro adds saved-company audio playlists and monitoring.
How current is the iSun, Inc. research?+
The Cyborg Score is recalibrated weekly. Recent developments are tracked continuously and surfaced in every report.

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