Companies at The Green Box

Read about our inhouse companies on the campus

Koolen Industries invests in clean energy technologies that tackle real-world challenges, enables collaboration amongst their group companies, and delivers reliable solutions that make clean energy accessible for everyone. 

Founded by entrepreneur and investor Kees Koolen in 2019, Koolen Industries has the goal of realising the rapid transition to clean, renewable energy.

With shares in more than 25 leading organisations within the sector, the group has the ambitious plan to become the leading provider of full-service clean energy solutions through their innovative ‘one-stop-shop’ model.


Super B develops and produces high-end Lithium Iron Phosphate batteries (LiFePO4) for multiple industries and applications, ranging from power batteries for motorcycles and race cars to energy solutions for recreational vehicles, leisure marine, commercial vessels, and industrial markets. Super B’s lithium batteries offer a tremendous amount of energy in compact and lightweight casings that are robust, safe, and reliable.





SmartGrid develops and builds energy storage systems for industrial and mobile applications, based on Lithium Iron Phosphate technology. This material is very safe because it cannot combust itself like other battery types. An additional advantage: iron phosphate is easy to mine and has a long life span, namely at least 8,000 cycles. In contrast: one cycle of the charged 500kWh battery can supply 73 households with electricity for 24 hours.

The modular design allows systems from 100kw to many MWs of power and capacity to be delivered with the same design, philosophy and components. This way SmartGrid can easily build up stock and we have the quality in our own hands. All systems are developed and built together with NieuweWeme, here in Oldenzaal and Hengelo on the Green Box.


Eaton's mission is to improve the quality of life and the environment through energy management technologies and services. Eaton Electrical Sector is a world leader with expertise in energy distribution and security, energy quality, control and automation, energy monitoring and management. With more than 100 years of experience in energy management, Eaton (previously Holec) has the expertise to look beyond today. From pioneering products to turnkey design and engineering services.  

With the shared challenge of meeting climate targets, the focus is on accelerating the energy transition. Energy storage systems, energy monitoring, DC systems are smart and sustainable solutions applied in housing, industrial environments, infrastructure and the national energy network, among others.


Floading Energy Infra wants to accelerate the transition to electric transport. We ensure that charging your electric vehicle can be done quickly and easily. In this way we work together on a quiet and clean world in which the next generation can also live and move.

We think along with you about which chargers are suitable for your location, suitable for your electric vehicles and their deployability. In our range we have both AC and DC chargers, which can be connected to solar panels. In combination with our back office, it is a complete system. Our back office provides insight into all charging sessions and with that you can determine your price per kWh for external users.

Floading supports companies and individuals with a sustainability or investment goal. By using charging stations and software, our customers can earn back their investment and create a passive income.

We believe that in this way Floading, together with you, will make the world cleaner and silent for the next generation.


NieuweWeme is your local manufacturing, production and engineering company for a better, cleaner and more sustainable world. With their combination of four unique business units, NieuweWeme offers a diverse range of expertise, allowing them to produce full-service solutions for their clients in-house. 

With their business units Containerized Solutions; Control Systems; Charging Solutions and Manufacturing & Assembly; NieuweWeme is the trusted partner for businesses around the world for delivering tailor made solutions from A to Z. From engineering to production, NieuweWeme has helped a wide range of companies bring their innovations, products and projects to the market. From healthcare to energy systems and EV charging, NieuweWeme is on a mission to enable the energy transition through local and sustainable manufacturing. 




Working together on your innovation. That's what Beeliners stands for. We get to the point quickly and we love efficient and simple solutions. To achieve that, we take the shortest and best route to success. From innovative idea to working prototype. Throughout the entire process.

We help companies in various industries to innovate. The engineers and specialists of Beeliners are spread out in various locations. The team stationed in The Green Box is mainly involved in projects related to energy transition and sustainability.

When working with Beeliners, you can be sure of personal contact with the specialist, we will respond quickly when you have adjustments to your idea and the IP remains yours. Every day we raise the bar a little higher, with every project we go the extra mile.


Solmax is a world leader in sustainable construction solutions, for civil and environmental infrastructure. Its pioneering products separate, contain, filter, drain and reinforce essential applications in a more sustainable way – making the world a better place. Our products contribute in various ways to the renewable energy transition. 

The company was founded in 1981, and has grown through the acquisition of GSE, TenCate Geosynthetics and Propex. It is now the largest geosynthetics company in the world, empowered by more than 2,000 talented people. Solmax is headquartered in Quebec, Canada, with subsidiaries and operations across the globe.



Aveleijn facilitates a life full of meaning for people with intellectual disabilities. A life in which you are of significance to others, as a child, partner or citizen. But also a life in which you experience meaning by enjoying everything that life has to offer. Own choices, own strength and own possibilities always form the basis. 

The Industrie Team Europalaan is a work-related day care location of Aveleijn. Here clients perform work for various regional companies. These activities vary from simple packing to multiple assembly work. The clients work in a sheltered space within the business park of 'The Green Box'. This makes them feel part of society and they can get the support they need. 

Aveleijn is a non-profit organization. When deploying clients with an intellectual disability, the interests of this vulnerable group are always central to us.  

Aveleijn is not only committed to healthcare with heart and soul, but also to sustainability. 

For example, many locations already have solar panels and LED lighting. In addition to these technical measures, awareness-raising and education about sustainability is at least as important. This is therefore something Aveleijn is actively working on. 





The Dutch Chinese Chamber of Commerce is a bilateral organization that primarily aims to promote trade between the Netherlands and The People’s Republic of China. We can usually create meaningful matches between our members through our network in the Netherlands, Europe, and China. Besides this, we help entrepreneurs limit their trade risk with Chinese parties. 

Currently, we mainly focus on companies in the energy transition. Many finished, and semifinished products are “Made in China”, such as batteries, solar panels, or heat pumps. With offices in the Netherlands and the P.R. China, we can efficiently support our clientele in their respective time zone. 

Our organization doesn’t only support finding Corporate Socially Responsible Chinese manufacturers and successful lading of products on the Chinese markets and protecting intellectual property. A selection of our services: 

- Product and supplier sourcing 
- Protection of intellectual property 
- Supply-chain screening for sustainability 
- Company verification 
- Quality Control and on-site Factory Audits 
- Certification support according to European standards 
- Incorporation in the P.R. China or SAR Hong Kong 
- Tradeshow pavilions / Group participation in international tradeshows 
- Logistics support (land, sea, rail, and air freight) 


Plug Power is building the hydrogen economy as the leading provider of comprehensive hydrogen fuel cell (HFC) turnkey solutions. The Company’s innovative technology powers electric motors with hydrogen fuel cells amid an ongoing paradigm shift in the power, energy, and transportation industries to address climate change and energy security, while providing efficiency gains and meeting sustainability goals.

Plug Power created the first commercially viable market for hydrogen fuel cell (HFC) technology. As a result, the Company has deployed over 50,000 fuel cell systems for e-mobility, more than anyone else in the world, and has become the largest buyer of liquid hydrogen, having built and operated a hydrogen highway across North America. Plug Power delivers a significant value proposition to end-customers, including meaningful environmental benefits, efficiency gains, fast fueling, and lower operational costs.

Plug Power’s vertically integrated GenKey solution ties together all critical elements to power, fuel, and provide service to customers such as Amazon, BMW, The Southern Company, Carrefour, and Walmart. The Company is now leveraging its know-how, modular product architecture and foundational customers to rapidly expand into other key markets including zero-emission on-road vehicles, robotics, and data centers.


2-B Energy contributes to a more sustainable world by introducing new wind turbine technologies with lower cost of energy produced and less material use. 2BE has introduced an innovative 6MW turbine that is successfully in operation since 2016.

Our 2-bladed turbine technology offers multiple benefits compared to the 3-bladed rotor, such as less material consumption and waste, reduced O&M costs due to the lower number of components and less transportation costs.

Other advantages of the 2-bladed turbine are that the turbine allows for helicopter landing on the nacelle and the lower top weight is beneficial for application with a floater.

Innovation is still in full swing; while the 2B6 turbine is currently up and running, in the upcoming years we will introduce the Advanced Rotor Technology. This technology will provide further LCOE reductions, making them a perfect reflection of our mission and goal.