Energy technology in the
Canton of Zug

OE-EN AG

Since 2019 · 1–10 empl.

OE-EN AG is an energy holding that provides services and solutions across the renewable energy value chain. It holds and manages specialized companies for project development, technology investments, advisory services, grid connection and for building and operating wind, solar and hybrid generation assets.

Energypier AG

Since 2021 · 11–20 empl.

Energypier AG develops combined power plants designed to generate electricity from solar energy and wind above motorway sections. The company also provides advice on energy-transition projects.

Parex Resources (Colombia) AG

Since 2022 · 101–500 empl.

The core activity of Parex is the exploration and production of oil and gas in Colombia, particularly in the Llanos and Magdalena basins. The company focuses on ensuring safe and reliable production and aims to increase its production and become a multi-field operator.

EP Commodities AG

Since 2022 · 11–20 empl.

EP Commodities AG trades natural gas, electricity, emission allowances and coal in European energy markets. It also provides hedging, sourcing portfolio management, structured products and flexibility solutions.

Altamira Capital AG

Since 2020 · 1–10 empl.

The core activity of GoldenPeaks Capital is the investment, development and operation of renewable energy projects, particularly in the fields of solar and wind energy, as well as the development of storage solutions and the trading of clean energy.

Verano Energy (Switzerland) AG

Since 2022 · 11–20 empl.

Verano Energy (Switzerland) AG develops renewable energy and green hydrogen projects. Its activities also include engineering and construction for solar projects, as well as the operation and maintenance of solar plants.

TRANS ADRIATIC EXPRESS LIMITED, London, Zweigniederlassung Baar

Since 2023 · 11–20 empl.·4.5(13)

TRANS ADRIATIC EXPRESS LIMITED, London, Zweigniederlassung Baar is described on the website as an operator of the Trans Adriatic Pipeline (TAP), acting as a transmission system operator (TSO) and independent transmission operator (ITO) that provides capacity to shippers for the transport of natural gas. The site indicates the company manages pipeline operations and offers services such as capacity booking, tariff information, commercial dispatching, and maintenance alongside environmental and safety programmes.

OE Wind AG

Since 2023 · 1–10 empl.

OE Wind AG develops commercial wind-energy generation projects and carries out project development activities in the field of eolic renewable energy. The company operates within the OE-EN group and focuses on progressing wind generation projects through the development phase.

JinkoSolar Energy Storage (Switzerland) GmbH

Since 2023 · 1–10 empl.

JinkoSolar Energy Storage (Switzerland) GmbH develops and sells photovoltaic and energy storage solutions for different applications. Its portfolio includes solar modules as well as storage systems for commercial, industrial and utility-scale use.

KelvinPRO AG

Since 2023 · 1–10 empl.

KelvinPRO AG develops patented technologies to improve the energy efficiency of air-to-water heat pumps. Its innovations can be integrated into new systems or retrofitted to existing ones, and the company offers a licensing model for their use.

DCES AG

Since 2020 · 1–10 empl.

DCES Consult GmbH develops and implements large-scale battery storage projects, primarily at high and extra-high voltage levels, managing site identification, securing grid connection capacity and the permitting process up to construction readiness.

EZPADA AG

Since 2007 · 1–10 empl.·5.0(3)

EZPADA AG operates in commodity trading and is active on commodity derivative exchanges. The group operates across various commodity markets.

Agosti Green Energy Holding AG

Since 2021 · 11–20 empl.·5.0(5)

Haral Energie AG

Since 2023 · 1–10 empl.

Haral Energie AG advises on, plans and builds biogas plants, particularly small-scale plants that produce heat and electricity from farm manure. It also offers combined heat and power units and services related to construction, operation and maintenance.

Virtus Resources Partners AG

Since 2023 · 1–10 empl.

The core activity of Virtus Resources Partners AG is the development and implementation of technologies for the automation and optimization of energy supply, particularly in the field of renewable and low-emission energy. The company focuses on physical energy trading logistics and the associated supply chains and infrastructures. By using artificial intelligence (AI) and machine learning, Virtus aims to stabilize energy supply, reduce energy consumption, and improve the efficiency of energy distribution.

Meri Energy AG

Since 2022 · 1–10 empl.

The core activity of Meri Energy is the development, manufacturing and distribution of storage batteries for renewable energies, particularly for use in photovoltaic systems. The company offers various battery models, including 5 kWh, 6.5 kWh and 5 kWh Stackable Battery, and emphasizes the high quality and reliability of its products. Meri Energy also provides technical support and a guarantee with guaranteed minimum energy output.

Deep Atomic AG

Since 2024 · 1–10 empl.

Deep Atomic AG is a project developer and systems integrator that connects Small Modular Reactors (SMRs) to data center and AI infrastructure. Its services include nuclear feasibility and site screening, thermal‑fluid and balance‑of‑plant design, permitting strategy, and project delivery partnerships.

Sundust Financing AG

Since 2024 · 1–10 empl.

Sundust Financing AG is responsible within the Sundust Group for financing and operating energy installations. These include photovoltaic and battery systems, as well as charging infrastructure for electric vehicles.

Glencore (Far East) AG

Since 1975 · 1–10 empl.·2.7(41)

Glencore (Far East) AG is a trading and natural resources company that produces, recycles, sources, markets and distributes metals, minerals and energy products. Its activities include metals and minerals, energy, recycling and commodity marketing.

Glencore (Asia) AG

Since 1983 · 1–10 empl.·2.7(41)

Glencore (Asia) AG is a globally diversified natural resources company that produces, sources, markets and distributes metals, minerals and energy products. The company also operates in recycling and in the trading and marketing of commodities.

CH Excellence GmbH

Since 2023 · 1–10 empl.

The company develops and markets energy or technology products, particularly in the field of decentralized energy solutions, such as battery storage and charging infrastructure for electric vehicles. It focuses on optimizing the use of renewable energies and developing innovative product strategies.

Glencore (South East Asia) AG

Since 1990 · 1–10 empl.·2.7(41)

Glencore (South East Asia) AG is part of Glencore and operates in the production, marketing and trading of commodities, including metals, minerals and energy products.

Glencore AG

Since 1978 · 11–20 empl.·2.7(41)

Glencore AG is a globally diversified natural resources company that produces, sources, markets and distributes metals, minerals and energy commodities and provides recycling services.

Westgass Energy AG

Since 2025 · 1–10 empl.

Westgass Energy AG is an independent energy trading and industrial development group. The company trades in physical energy markets and develops industrial projects with renewable power access.

Flint Labs AG

Since 2026 · 1–10 empl.

Flint Labs AG develops Flint Paper Battery, a water-based rechargeable battery technology made with renewable materials. The company focuses on sustainable energy storage for applications ranging from IoT devices to large-scale energy storage systems.

NoctOps GmbH

Since 2025 · 1–10 empl.

NoctOps GmbH engineers and delivers custom electrical systems and subsystems for demanding applications. Its services include engineering, sourcing and manufacturing, system integration, testing and commissioning, and infrared thermographic inspections of electrical systems.

HydroRide Europe AG

Since 2024 · 1–10 empl.·5.0(1)

HydroRide Europe AG develops and sells hydrogen-powered bicycles, hydrogen generators, storage systems and tanks. Its products also include hydrogen-powered drones and other solutions for mobility and energy supply.

Westgass Holding AG

Since 2026 · 1–10 empl.

Westgass Holding AG is an independent group active in energy trading and industrial project development. The company trades physical energy, including natural gas, power, liquids and low-carbon fuels, and develops industrial assets focused on renewable energy supply.

HELIOS ENERGY EM AG

Since 2008 · 1–10 empl.

HELIOS ENERGY EM AG provides consulting for trading commodities, including crude oil, natural gas and their products, as well as metals and rare earths. Its services include advice on trading processes and financing, supplier assessment and selection, and the provision of suitable IT solutions.

SwissEco Power SA

Since 2009 · 1–10 empl.

SwissEco Power SA facilitates investment and project development in renewable energy, particularly hydropower, solar and wind. It supports public and private investors with market access, permits and concessions, and project management, working with technical and engineering partners.

TG2 GmbH

Since 2016 · 11–20 empl.

The core activity of TG2 is the development and implementation of projects in the field of renewable energy, particularly through the recycling of waste streams and the production of bio-based energy carriers. This includes: The development of photovoltaic projects in Japan; The production of bio-based pellets from agricultural waste streams in Southeast Asia as an environmentally friendly alternative to coal; Supporting projects that convert industrial waste streams into valuable resources; Promoting environmentally friendly agricultural practices and supporting community programs for ecological agriculture. The company pursues a balanced business approach that considers social, ecological and financial aspects, aiming to have a positive impact on the environment and society.

TARGET Holding GmbH

Since 2016 · 1–10 empl.

The company's core activity is the development and promotion of renewable energies, particularly wind energy and wave energy.

META Engineering AG

Since 2019 · 1–10 empl.

The core activity of META Engineering AG is the investment and management of projects in the field of renewable energies, particularly in the development of large-scale energy projects such as wind farms and biofuel production, with the aim of promoting a sustainable future and supporting the transition to renewable energies.

Nippur AG

Since 2021 · 11–20 empl.

Nippur AG advises governments, state entities and public institutions on managing currency, commodity and interest-rate risks. It also trades physical oil and gas and advises state agencies on energy infrastructure projects throughout their lifecycle.

LIGRIN AG

Since 2023 · 1–10 empl.

LIGRIN AG develops a Waste-to-Resources process that converts agricultural residues and food waste into Sustainable Aviation Fuel, renewable diesel and a full NPK organic fertilizer. The company states that the process reduces emissions and supports a circular bio-economy.

ATHERYON HOLDING AG

Since 2024 · 1–10 empl.

ATHERYON HOLDING AG develops, builds and operates facilities that convert organic waste into biomethane. It also provides waste management and biomethane supply for hotels and restaurants, as well as taxonomy and certification services for energy projects.

Georesearch AG

Since 2008 · 1–10 empl.

TTQS ENERGY AG

Since 2009 · 11–20 empl.

The core activity of TTQS ENERGY AG is the development and marketing of electricity generators based on NEUTRINO®VOLTAIK technology, in particular products that can be pre-ordered from March 2024.