Energy technology in
Basel

Renera Trading AG

Since 2022 · 101–500 empl.·4.8(4)

Renera Trading AG procures biogas and provides related services including structured procurement, certificate management, market monitoring and administrative processing. Its services cover long‑term biomethane purchase agreements, spot market transactions, a cloud‑based ordering platform and support on communication and regulatory matters.

Haefely AG

Since 1999 · 101–500 empl.

Haefely AG develops and manufactures high-voltage test systems, EMC equipment and instruments for manufacturers of power, distribution and instrument transformers, cables and switchgear. The company also provides services including calibration and testing, spare parts, rentals, repairs, installation and commissioning, upgrades, maintenance, and customer support and engineering consulting.

Enstrat GmbH

Since 2025 · 1–10 empl.

Enstrat GmbH provides strategy advice and strategic sparring for boards and executive teams, particularly on energy-sector issues. Its services include strategy workshops, independent second opinions on strategies and projects, short-term advisory assignments, and briefings on market, regulatory and geopolitical developments.

NUADA ENERGY GmbH

Since 2011 · 1–10 empl.

Eartha AG

Since 2016 · 1–10 empl.

Renervest AG

Since 2018 · 1–10 empl.

ReLaTec AG

Since 2020 · 1–10 empl.

Synsolar Invest AG

Since 2021 · 1–10 empl.

Phoenix BioPower Switzerland GmbH

Since 2022 · 1–10 empl.

Enolto GmbH

Since 2024 · 1–10 empl.

ETron Energy AG

Since 2025 · 1–10 empl.