Saule Technologies

What Saule Technologies does

Saule Technologies is a Polish nanotechnology company, founded in November 2014 by Olga Malinkiewicz, Piotr Krych and Artur Kupczunas, that develops inkjet-printed perovskite solar cells on thin, flexible PET substrates. The core technology — a patented low-temperature (below 120°C) inkjet deposition method invented by Malinkiewicz — produces cells thinner than a micron and approximately 500 g/m², capable of up to 25–31% efficiency in indoor and low-light conditions and roughly 10% under one sun, with customisable shape, colour and transparency. The company operates a pilot production line in Wroclaw and an additional corporate office in Warsaw, with a team of 50+ scientists, engineers and administrative staff drawn from more than 17 countries.

The business model is B2B, combining (i) exclusive technology licensing and OEM partnerships, (ii) direct sales of customised products spanning IoT (electronic shelf labels, smart-home devices), E-Mobility (solar carports, EV-charging canopies, yacht sails, truck tarpaulins), Building Applied Photovoltaics (lightweight rooftops, sunblinds, awnings) and Building Integrated Photovoltaics (photovoltaic glass, facades), and (iii) R&D and joint-development services. Named customers and partners include Skanska, Somfy, H.I.S. Co., Ltd., Lawson, Columbus Energy (also a 20% equity holder since September 2020), Henn-na Hotel (Japan), Natoni and the European Bison conservation project, most engagements to date being pilots, demonstrators or co-development programmes rather than disclosed volume contracts.

Operationally, Saule moved from laboratory to industrial scale with the May 2021 grand opening of its pilot line and its first commercial BAPV installation in August 2021, and has since entered Japan through Tokyo retail trials (December 2024) and the 2025 World Expo in Osaka-Kansai. The company announced readiness to go public via a reverse merger of Blumerang Investors on the Warsaw NewConnect market in April 2021, though no completed listing is documented in the source data. As of mid-2026, the management board publicly disputes unauthorised offers to purchase the company or its assets.

Name

Saule Technologies

Legal name

Saule Spółka Akcyjna

Website

https://sauletech.com

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

51–100 employees

Short description

Saule Technologies is a Polish nanotechnology company that develops and licenses inkjet-printed flexible perovskite solar cells for B2B customers across IoT, E-Mobility, Building Applied, and Building Integrated Photovoltaic applications in construction, retail, smart home, energy and hospitality markets.

Ownership category

akta.pro rank

Product category

Perovskite Photovoltaics

NAICS

Electric Lamp Bulb and Other Lighting Equipment Manufacturing (335139)

akta.pro industry

PRIMARYEUAMAOAA

Next-Gen Photovoltaics R&D (Perovskite, Tandem, Organic, BIPV Materials)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Renewable Energy Technology Innovation (R&D & Emerging Tech)

SECONDARYEUAMAHAA

Solar PV Module & Cell Manufacturing (Crystalline, Thin-Film)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Renewable Equipment & Component Manufacturing (Modules, Turbines, Inverters, Towers, Blades)

Keywords

• Perovskite solar cells
• Flexible photovoltaics
• Printed solar modules
• Building integrated photovoltaics
• Inkjet printed photovoltaics

Headquarters

HQ city

Warsaw

HQ country

Poland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Infrastructure, Marketing or Sales, Supply Chain

Revenue model

1. Licensing: License agreements granting exclusivity to produce and sell products with perovskite modules from Saule Technologies
2. Product Sales: Direct sales of currently available products with customization options including kinetic sunblinds, carports, electronic shelf labels, photovoltaic glass, and energy transformation solutions
3. R&D Services: Joint development collaborations and R&D services offered to partners

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Saule Technologies develops and manufactures inkjet-printed perovskite solar cells on thin, flexible PET foils. The company sells customized photovoltaic modules and finished solar-integrated products (sunblinds, solar carports, electronic shelf labels, photovoltaic glass, BAPV and BIPV solutions) to enterprise customers, and licenses its perovskite technology for exclusive production by industrial partners. It also offers joint R&D services for partners seeking to integrate perovskite PV into their own products.

Product overview

Saule Technologies offers a portfolio of inkjet-printed perovskite solar cell products and solutions. The core offering is the perovskite photovoltaic technology printed on thin, flexible foils, which serves as the foundation for multiple product lines including IoT solutions (electronic shelf labels), E-Mobility solutions (solar carports, photovoltaic tarpaulins), Building Applied Photovoltaics (BAPV - rooftop solutions, sunblinds, awnings), and Building Integrated Photovoltaics (BIPV - windows, facades, photovoltaic glass). The company also offers licensing opportunities for B2B partners and R&D collaboration services. Products can be customized in various shapes, patterns, and colors, and operate efficiently both indoors and outdoors including in low-light conditions.

Differentiator

Problem solved

Functional benefit

Products and services

• Perovskite Solar Cells

Quantifiable outcome

• 10x lighter than traditional silicon PV installations
• +4 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• SkanskacoreStrategic or Co-development Partner · 1 January 2018Joint Development Agreement to develop BIPV product (Building Integrated Photovoltaics). Photovoltaic glass facade for multiple buildings. Pilot installation at Spark building in Warsaw.
• ErgisminorStrategic or Co-development Partner · 1 September 2017Joint Development Agreement with Ergis to develop barrier foil for optoelectronic applications suitable for thin-film photovoltaics.
• SomfycoreStrategic or Co-development PartnerPartnership for solar sunblinds premiere - automatic sun breaker slats equipped with perovskite solar cells.
• H.I.S. Co., Ltd.coreStrategic or Co-development PartnerPartnership for retail energy solutions. Participation in 2025 World Expo in Osaka-Kansai with Smart Pole featuring perovskite technology. First trials of perovskite solar cells within Japan's retail chain with Lawson.
• LawsoncoreChannel Partner/ Reseller/ DistributorPilot trials of perovskite solar technology in Tokyo retail chain for electronic shelf labels and retail energy solutions.
• PEARL Project ConsortiumcoreStrategic or Co-development PartnerThree-year EU-funded Horizon Europe research initiative to develop flexible perovskite solar cells with carbon electrodes. Consortium of ten European partners achieving over 21% efficiency on flexible PET substrates.
• SuPerTandem ProjectcoreStrategic or Co-development PartnerInternational research project to bring new photovoltaic technology with higher efficiency combining perovskite with silicon tandem cells.

Scale indicators4 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Sunew: Brazil-based printed organic photovoltaic film manufacturer. Comparable as a printed thin-film solar developer targeting architectural and BIPV applications with custom form factors.
• Oxford PV: UK/Germany-headquartered pioneer of commercial perovskite-silicon tandem solar cells. Directly comparable as a perovskite PV technology developer targeting BIPV and utility-scale segments, with a much larger funding base.
• Heliatek: Germany-based roll-to-roll printed organic photovoltaic film producer. Comparable to Saule as a printed thin-film PV technology developer focused on BIPV and building facades.
• Swift Solar: US-based perovskite tandem solar cell startup targeting lightweight, high-efficiency applications. Comparable as a venture-backed perovskite PV developer pursuing flexible and tandem architectures.
• Ascent Solar Technologies: US-based manufacturer of flexible thin-film CIGS solar modules on lightweight substrates. Comparable to Saule as a flexible, lightweight thin-film PV module producer for BIPV, aerospace, and IoT markets.
• Caelux (First Solar): US perovskite technology developer acquired by First Solar to advance tandem cells. Comparable as a perovskite IP and module developer with backing from a major incumbent solar manufacturer.

Broad incumbents

• First Solar: US-headquartered leading CdTe thin-film PV module manufacturer and developer of perovskite tandem technology via Caelux. A broad incumbent competitor in thin-film and tandem PV with vastly greater scale.
• MiaSolé: US-based manufacturer of flexible CIGS thin-film solar modules on flexible substrates. Comparable to Saule as a flexible thin-film PV producer for BIPV, commercial rooftop, and transportation applications at higher scale.

Emerging players

• Energy Materials Corporation: US perovskite ink and process developer enabling roll-to-roll perovskite manufacturing. Comparable as a perovskite materials and process IP company targeting similar printed PV applications.
• Tandem PV: Netherlands-based perovskite-silicon tandem cell developer spun out of TNO/Solliance. Comparable as a European perovskite tandem startup with overlapping R&D consortia and BIPV ambitions.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCvbRgI0zD4mXV-BJ8r3iRrQ/featured
• Facebookfacebook.com/sauletech
• LinkedInlinkedin.com/company/saule-technologies
• Xx.com/sauletech

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds1 record

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Saule Technologies