Fundz

OpenSolar has raised $20m in equity financing to enhance its AI technology for solar installers, backed by investors including Google and Titanium Ventures, to accelerate the energy transition.

PRIVATEOct 02, 2025

Amount Raised

$20 Million

Round Type

Venture

EnergySoftwareArtificial IntelligenceRenewable EnergySolar

Investors

2150 Sustainability FundGoogleTitanium Ventures

Description

OpenSolar, a software platform for solar installers, has secured $20m in equity financing from top investors. The funding will support their investment in AI technology solutions to improve efficiency and global coverage. Their platform has been instrumental in creating 6,000,000 solar system designs. OpenSolar aims to connect energy consumers and professionals with innovative technology.

Quick answer

OpenSolar raised $20 Million in a funding round, dated October 2, 2025. Investors: 2150 Sustainability Fund, Google and Titanium Ventures.

How much did OpenSolar raise?
OpenSolar raised $20 Million in a funding round on October 2, 2025.
Who invested in OpenSolar?
2150 Sustainability Fund, Google and Titanium Ventures are named as investors in this round.
What does OpenSolar do?
OpenSolar is on a mission to accelerate solar adoption worldwide by providing innovative software and a unique business model—the world's first completely free-to-use solar operating system for solar installers.
Where is OpenSolar based and how big is it?
Fundz records about 123 employees.
Who are the decision-makers at OpenSolar?
Fundz holds 1 contact at OpenSolar. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

Who else raised in Energy and Renewable Energy around the same time

Companies in the same sectors as OpenSolar that raised within 45 days of this round, from Fundz verified event records.

  • Solentrex raised an undisclosed amount (Corporate Round) on October 13, 2025.
  • Cursor raised $2.3B (Funding Round) on November 13, 2025.
  • Crusoe raised $1B on October 8, 2025.
  • Solenery raised $750K (Pre-Seed) on September 9, 2025.
  • Euclid Power raised $20M (Series A) on September 4, 2025.
  • Gridware raised $55M on November 15, 2025.

Who to call at OpenSolar, and when

A new round usually means OpenSolar is about to hire and buy. The teams that reach out first get the meeting.

  • An alert the day OpenSolar raises, hires an executive or expands, scored against what you sell
  • The decision-makers there, with verified emails
  • Who you already know at OpenSolar, from your own LinkedIn network

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Company Information

Company

OpenSolar

About

OpenSolar is on a mission to accelerate solar adoption worldwide by providing innovative software and a unique business model—the world's first completely free-to-use solar operating system for solar installers. The platform supports the entire solar workflow, from AI-powered customer self-serve estimates to industry-leading design accuracy. OpenSolar generates revenue through partnerships with hardware and finance providers, allowing installers to save on software costs while using cutting-edge tools. Supporting over 25,000 solar professionals in 160+ countries, it aims to enhance efficiency and scale in the solar industry.

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Fundz sees it the moment OpenSolar raises, hires an exec or expands, usually minutes after it happens, and tells you who to reach.

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OpenSolar raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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