GUNDER

What GUNDER does

GÜNDER (Uluslararası Güneş Enerjisi Topluluğu Türkiye Bölümü — International Solar Energy Society Turkey Section) is the official Turkish chapter of the International Solar Energy Society (ISES), established on 10 February 1992 via Council of Ministers Decision No. 92/2752 under Article 1 of Law No. 3335. It is a non-profit membership-based association (dernek) headquartered in Ankara that serves as the primary coordinating body for Turkey's solar energy sector, recruiting corporate, individual, government, and educational members; setting quality standards; advocating for favorable regulation; and representing Turkey in the IEA SHC and IEA PVPS international programs.

The organization operates a portfolio of member-facing services rather than commercial products. These include the Solar.ist (solar.ist) news and regulatory-update portal, the GÜNDERGİ sector magazine, the GÜNDERMYM (GÜNDER VOC Test Merkezi) testing and certification center for solar equipment, an open-access renewable energy library (Kütüphane), and the Enerji Dönüşümü Paydaşları stakeholder engagement platform. Distribution is direct via membership recruitment, supplemented by content marketing on LinkedIn, Twitter, Facebook, YouTube, and Instagram, plus active participation and sponsorship in international industry events including EU PVSEC, Energy Investment Forum (EIF), and InterSolar. Go-to-market is community-led: the association positions itself as the convening forum for the full Turkish solar value chain — panel manufacturers, EPC firms, inverter producers, storage and cable suppliers, installers, and O&M companies — as well as a policy advocate pursuing Turkey's stated minimum 500 GW solar potential.

Revenue mechanics are recurring annual membership fees across four categories (corporate, individual, government, educational), with no publicly disclosed pricing or financial statements. Disclosed corporate members include Rhofa Energy, Fiba Yenilenebilir Enerji, Uslu, Elit Solar, Sky Solar, Pantech Alüminyum, and Mitos, spanning solar, renewables, and adjacent manufacturing segments. The current Chairman of the Board is Mehmet İzzet Özaydın, leading the 2025-2028 Board term.

Name

GUNDER

Legal name

Uluslararası Güneş Enerjisi Topluluğu Türkiye Bölümü – GÜNDER

Website

https://gunder.org.tr

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

GÜNDER is Turkey's official solar energy industry association, established in 1992 under Law 3335 as the ISES Turkey chapter. It coordinates solar manufacturers, EPC firms, installers, and policymakers through membership fees, publications, testing services, and advocacy.

Ownership category

akta.pro rank

Headquarters

HQ city

Çankaya

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Membership Fees: GÜNDER generates revenue through annual membership fees from corporate members (solar panel manufacturers, EPC firms, inverter manufacturers, construction firms, storage solution providers), individual members, government institutions, and educational institutions.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

GÜNDER is a non-profit membership association that coordinates Turkey's solar energy sector by recruiting corporate, individual, government, and educational members; advocating for favorable regulatory frameworks; developing quality standards; publishing knowledge resources (Solar.ist news portal, GÜNDERGİ magazine, Kütüphane library); organizing industry events; and officially representing Turkey in international solar energy bodies including ISES, IEA SHC, and IEA PVPS.

Product overview

GÜNDER (Uluslararası Güneş Enerjisi Topluluğu Türkiye Bölümü) is the Turkish chapter of the International Solar Energy Society (ISES), operating as a nonprofit association rather than a product company. Its portfolio consists of member-facing programs and digital platforms: Solarist Haber Portalı serves as the primary online news and regulatory update hub for Turkey's solar energy sector; GÜNDERGİ is the sector's periodical magazine publication; GÜNDERMYM (GÜNDER VOC Test Merkezi) is a testing and certification center for solar equipment quality; Kütüphane provides open-access renewable energy research and reports; and Enerji Dönüşümü Paydaşları is a stakeholder engagement platform supporting the green energy transition.

Differentiator

Problem solved

Functional benefit

Brands

• Solar.ist: Solar energy news portal operated by GÜNDER providing sector news and regulatory updates.
• GÜNDERGİ

Products and services

• Solar.ist Haber Portalı

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Eleven partnerships are on record, tiered moderate, core and minor.

• SolarHub (Greek-Turkish Solar Energy Centre of Excellence)moderateStrategic or Co-development Partner · 23 January 2023GÜNDER participates in the SolarHub initiative to establish a Greek-Turkish Solar Energy Centre of Excellence aimed at advancing the European Green Deal. The kickoff meeting was held on 23 January 2023.
• International Solar Energy Society (ISES)coreStrategic or Co-development Partner · 10 February 1992GÜNDER is the official Turkey chapter of ISES, designated by the Council of Ministers Decision No. 92/2752. GÜNDER serves as ISES's authorized representative in Turkey for all solar energy matters.
• International Energy Agency – Solar Heating and Cooling Program (IEA SHC)coreStrategic or Co-development PartnerGÜNDER is officially appointed to represent the Republic of Turkey in the IEA SHC program, which focuses on solar heating and cooling technologies.
• International Energy Agency – Photovoltaic Power Systems Program (IEA PVPS)coreStrategic or Co-development PartnerGÜNDER is officially appointed to represent the Republic of Turkey in the IEA PVPS program, which focuses on photovoltaic power systems.
• TOBB İklimlendirme Meclisi (TOBB Climate Chamber)moderateStrategic or Co-development PartnerGÜNDER is a member of the TOBB Climate Chamber, Turkey's leading business confederation climate committee, facilitating coordination on climate and energy policy.
• SolarPower EuropemoderateStrategic or Co-development PartnerGÜNDER collaborates with SolarPower Europe (formerly EPIA, the European Photovoltaic Industry Association) to align with European solar market developments and standards.
• European Solar Thermal Industry Federation (ESTIF)moderateStrategic or Co-development PartnerGÜNDER works in cooperation with ESTIF on solar thermal technologies and policy alignment with European standards.
• Global Solar Council (GSC)moderateStrategic or Co-development PartnerGÜNDER participates in the Global Solar Council as a member organization, contributing to international solar energy advocacy and coordination.
• Türkiye İnşaat Malzemesi Sanayicileri Derneği (TÜRKİYE İMSAD)minorStrategic or Co-development PartnerGÜNDER is a member of TÜRKİYE İMSAD, the Turkish Construction Materials Manufacturers Association, supporting cross-sector collaboration in the construction and energy industries.
• Denmark Green Growth Network (DGGN)minorStrategic or Co-development PartnerGÜNDER cooperates with the Danish Green Growth Network on green transition and renewable energy best practices exchange.
• Orta Doğu Güneş Enerjisi Sanayi Derneği (MESIA)moderateStrategic or Co-development PartnerGÜNDER collaborates with MESIA (Middle East Solar Industry Association) for regional solar energy cooperation and market intelligence sharing.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• China Photovoltaic Industry Association (CPIA): China's national PV industry association. Comparable as a country-level solar trade body serving manufacturers, EPCs, and policy makers, though operating at vastly larger scale.
• Solar Energy Industries Association (SEIA): The US national solar industry trade association. A broad incumbent peer serving as the convening, advocacy, and standards body for the American solar market—analogous in mission to GÜNDER at national level.
• International Solar Energy Society (ISES): The global parent body of which GÜNDER is the official Turkey chapter. Comparable as a global solar research and advocacy federation, providing knowledge resources that GÜNDER redistributes locally.

Regional players

• India Solar Manufacturers Association (ISMA): National-level solar manufacturer association in India. Comparable to GÜNDER as a country-level solar industry body focused on manufacturing competitiveness and policy advocacy.
• Türkiye Rüzgar Enerjisi Birliği (TÜREB): Turkey's national wind energy association. A domestic peer trade body operating in the same regulatory and policy ecosystem, comparable as a fellow Turkish clean-energy industry association.

Direct peers

• Global Solar Council: International umbrella body coordinating national solar associations. Directly comparable as a peer convening organization, and GÜNDER is an active member.
• Middle East Solar Industry Association (MESIA): Regional solar industry association covering the MENA region. Directly comparable to GÜNDER as a sister national/regional body promoting solar adoption, and an active GÜNDER partner.
• SolarPower Europe: The leading European solar industry association representing PV and solar thermal at the EU level. Directly comparable to GÜNDER as a sister solar trade body, and an explicit partner organization.
• European Solar Thermal Industry Federation (ESTIF): European federation for the solar thermal sector. Directly comparable to GÜNDER's solar thermal advocacy function and an established partner.

Others

• Danish Energy Association (Dansk Energi): Danish energy industry trade body with which GÜNDER cooperates through the Denmark Green Growth Network. Comparable as a national energy advocacy association and a peer in international clean-energy diplomacy.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/gundersolar
• YouTubeyoutube.com/channel/UCdZ6OXrhVfngZPJjdqYz20g
• Facebookfacebook.com/gundersolar
• LinkedInlinkedin.com/company/g-nder
• Instagraminstagram.com/gundersolar

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

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 GUNDER