About Eternal Sun
Eternal Sun is a company based in Delft (Netherlands) founded in 2011 was acquired by Bolster Investment Partners in May 2025. Eternal Sun has raised $2.49 million across 1 funding round from investors including ABN AMRO, Vermec and Bolster Investment Partners. Eternal Sun offers products and services including LED Light Soaker, XENON Solar Flasher, Temperature Controlled Lab Flasher, and Large Area Steady State. Eternal Sun operates in a competitive market with competitors including Morgan Solar, BT Imaging, PV Evolution Labs, PSE Instruments and Bright Spot Automation, among others.
- Headquarter Delft, Netherlands
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Sectors
Energy & Utilities
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Email
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Phone
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Website
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Social
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Annual Revenue
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Net Profit
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EBITDA
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Total Equity Funding
$2.49 M (USD)
in 1 rounds
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Latest Funding Round
$2.49 M (USD), Series A
Dec 03, 2014
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Investors
ABN AMRO
& 2 more
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Employee Count
Employee Count
- Acquired by
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Products & Services of Eternal Sun
Eternal Sun offers a comprehensive portfolio of products and services, including LED Light Soaker, XENON Solar Flasher, Temperature Controlled Lab Flasher, and Large Area Steady State.
Provides steady-state simulation for laboratory PV testing
Enables flash-based IV testing for manufacturing and labs
Offers precise temperature control for PV performance analysis
Supports testing of mini-modules and multiple samples
People of Eternal Sun
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Funding Insights of Eternal Sun
Eternal Sun has successfully raised a total of $2.49M through 1 strategic funding round. The most recent funding activity was a Series A round of $2.49 million completed in December 2014. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding Total Funding
- Total Rounds 1
- Last Round Series A — $2.5M
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First Round
First Round
(03 Dec 2014)
- Investors Count 1
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
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| Dec, 2014 | Amount | Series A - Eternal Sun | Valuation |
investors |
Investors in Eternal Sun
Eternal Sun has secured backing from 3 investors, including venture fund and institutional investors. Prominent investors backing the company include ABN AMRO, Vermec and Bolster Investment Partners.
| Investor | Description | Founded Year | Domain | Location |
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Private equity firm
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ABN AMRO is recognized as a personal bank in the digital era.
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Investments & Acquisitions by Eternal Sun
Financial Statements - Eternal Sun
Eternal Sun Comparisons
Competitors of Eternal Sun
Eternal Sun operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Morgan Solar, BT Imaging, PV Evolution Labs, PSE Instruments and Bright Spot Automation, among others.
| Company Name | Domain | Founded year | HQ Location | Description |
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Solar design simulation software solutions are provided for light management.
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Inspection tools for photovoltaic manufacturing processes are supplied.
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Independent testing services for solar photovoltaic modules are provided.
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Solar Testing solutions
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Solar panel testing solutions are developed using innovative measurement tools.
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Latest news on Eternal Sun
Frequently Asked Questions about Eternal Sun
Eternal Sun was founded in 2011 and raised its 1st funding round 3 years after it was founded.
Eternal Sun is headquartered in Delft, Netherlands. It is registered at Delft, South Holland, Netherlands.
Eternal Sun is a funded company, having raised a total of $2.49M across 1 funding round to date. The company's 1st funding round was a Series A of $2.49M, raised on Dec 03, 2014.
Eternal Sun was founded in 2011 and is based in Delft, Netherlands. Equipment for testing solar modules is provided by the company to support quality assurance in the renewable energy industry. Operations are centered on delivering specialized testing solutions for photovoltaic applications, with a focus on reliability and compliance standards. The companys activities serve manufacturers and researchers across Europe and beyond, contributing to advancements in solar technology.
Eternal Sun's top competitors include BT Imaging, Morgan Solar and PV Evolution Labs.
Eternal Sun offers LED Light Soaker, XENON Solar Flasher, Temperature Controlled Lab Flasher, and Large Area Steady State.
Eternal Sun has 3 investors. Key investors include ABN AMRO, Vermec, and Bolster Investment Partners.