Successful customers of GUTcert

NaturStromTrading GmbH is a subsidiary of naturstrom AG. It is active in wholesale energy trading and markets green electricity from EEG plants according to the market premium model as well as electricity from renewable energy plants without EEG remuneration, primarily from subsidised wind energy plants.

The production of injection-moulded plastic packaging has been our passion for over 55 years. As a leading manufacturer and medium-sized family business, Spies Packaging offers customised packaging solutions - whether in reliable series production or with flexible requirements.

Pfeifer & Langen is one of the leading sugar manufacturers in Europe. The family-owned company Pfeifer & Langen was founded in Cologne in 1870 and employs more than 2,440 people in production, refining and sales locations in Europe.

Thomas betonbauteile is part of the thomas group, a family-run group of companies in the construction and building materials industry. With over 80 locations in Germany, Poland and Denmark, thomas betonbauteile manufactures walls, ceilings and other precast concrete parts and can therefore fulfil all market requirements.

Messe Berlin has been active in the international trade fair and congress sector since 1822. Over 100 regional, national and international in-house and guest events take place annually at the Berlin exhibition centres, in Germany and worldwide, including the International Green Week Berlin, ITB Berlin/Asia, IFA, InnoTrans and Fruit Logistica Berlin/Hong Kong.

Kassel-based astora GmbH is one of the largest natural gas storage operators in Europe and has many years of experience in the planning, construction and operation of natural gas storage facilities as well as in the marketing of storage capacities.

Eberswalder Brot- und Feinbackwaren GmbH stands for the traditional bakery trade, high-quality products and raw materials from the region. We produce our own sourdough for full flavour and moist bread. We also offer a wide range of bread rolls, pastries, cakes and festive tarts.

As the largest municipal hospital group in Germany with more than 17,000 employees, Vivantes is a pioneer in an industry undergoing change. Under the umbrella of the Vivantes network, patients in Berlin receive the full range of high-quality medical and nursing care.

Uniper is a leading international energy company with around 11,500 employees in more than 40 countries. With around 34 gigawatts of installed generation capacity, Uniper is one of the largest electricity producers in the world. Uniper's core activities are power generation in Europe and Russia and global energy trading.

ERCO Lichtfabrik, based in Lüdenscheid, Germany, is a leading specialist in architectural lighting with LED technology. ERCO sees light as the 4th dimension of architecture - and supports planners in realising their projects with high-precision, efficient lighting solutions in areas such as work and culture, community and public/outdoor.

The RhönSprudel Group is one of the top 10 mineral springs in Germany and offers mineral waters and soft drinks of the highest quality. The family-orientated company management is the driving force behind successful product innovations, coupled with a prudent and resource-conserving approach.

From nature for people
The products of WALA Heilmittel GmbH serve to heal, care and thrive and are an expression of the company's values. They stand for social and economic responsibility as well as respect for nature and people. Medicines and cosmetics owe their special quality to carefully selected, purely natural ingredients.