S
Solarstone
The Solar Roof Company
About Solarstone
Solarstone, an Estonian startup, was founded by Silver Aednik, Mattis Jürimäe, and Mait Kukk. The company specializes in building-integrated photovoltaics (BIPV), offering solar solutions that double as roofing materials.
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In early 2024, the founders announced they would be stepping down from their active management roles, with Biofuel OÜ acquiring a majority stake in the company. Sunly, a seed investor who has been with the company since 2019, will continue as a shareholder and strategic partner.
Solarstone’s business model focuses on providing aesthetically pleasing and efficient solar energy solutions for both new construction and renovation projects. Their products are sold through a network of resellers and installers, targeting both residential and commercial clients. The company’s core offerings include the "Solar Full Roof," a 2-in-1 system that replaces the entire roof with solar panels, and the "Solar Tiled Roof," which integrates seamlessly with existing roof tiles. These products are designed to be weatherproof and act as a primary roofing layer, not just a supplement to it.
At a glance
- Status
- Operational
- Founded
- 2015
- Headquarters
- Viljandi linn, Estonia
- Employees
- 24
- Open positions
- None listed
- Dealroom signal
- 63.0/100
- Sub-industry
- Clean Energy, Energy Efficiency
- Sector
- Energy, Solar Energy, Sustainable Development Goals, Urban Tech, Climate Tech, Green Buildings, Residential Solar, Renewable Energy
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b, b2c
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES AOther financing | Jul 2022 | $11M | $44M | Biofuel | ↗ |
| SEEDOther financing | Aug 2019 | $550K | $2.2M | Sunly | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Solarstone is 4.9K monthly website visits, down 32.9% over the last three months. Solarstone's team grew 0% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
Sunly
Series A1 investor entered at this stage
Biofuel
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Solarstone on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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