| 1 | | Theodor-Stern-Kai 1 | Frankfurt am Main |  DE | | Gas Company | +49 6930030 | | Fabian Jungbluth |
| 2 | | Steinstraße 11 | Bad Oeynhausen | DE | | Corporate Office | +49 8001999977 | | Michael Sentis |
| 3 | | Nordparkstraße 30 | Cottbus | DE | | Gas Company | +49 35578220 | | Frank Niederle |
| 4 | | Bayerstraße 43 | Augsburg | DE | | Gas Company, Electric Utility Company | +49 82190020 | | Conny Reichelt |
| 5 | | Baker-Hughes-Straße 1 | Celle | DE | | Oil & Natural Gas Company | +49 51412030 | | Raimondo Giavi |
| 6 | | Ostring 5 | Niebüll | DE | | Corporate Office | +49 41066489090 | | Michael Hübner |
| 7 | | Melchenberg 4 | Reken | DE | | Water Utility Company | +49 2864902000 | | Gabi Stachelhaus |
| 8 | | Arno-Nitzsche-Straße 35 | Leipzig | DE | | Electric Utility Company | +49 34112140 | | Michael Graupner |
| 9 | | Joseph-Schneider-Straße 1 WERKStadt | Limburg an der Lahn | DE | | Medical Supply Store | +49 64319218790 | | Frank Kingler |
| 10 | | Am Moosrain 3 | Pliening | DE | | Energy Equipment and Solutions, Heating Equipment Supplier, Hvac Contractor, Manufacturer | +49 89907747015 | | Ulf Kuhrau |
| 11 | | Theodor-Heuss-Straße 51 | Bad Vilbel | DE | | Public Works Department | +49 610152801 | | Umut Çam |
| 12 | | Mauerstraße 2 | Halle (Saale) | DE | | Medical Supply Store | +49 3452023060 | | Peter Albrecht |
| 13 | | Futterkamp Biogasanlage | Blekendorf | DE | | N/A | +49 4381404775 | | Bert Sondermann |
| 14 | | Hafenpl. 1 | Münster | DE | | Public Works Department, Electric Utility Company, Gas Company, Telecommunications Service Provider, Transportation Service, Water Utility Company | +49 2516941234 | | Dennis Mehls |
| 15 | | Georg-Schumann-Straße 50 | Leipzig | DE | | Medical Supply Store, Orthopedic Shoe Store | +49 3415502525 | | Mandy Bergmann |
| 16 | | Burger Str. 20 | Werben | DE | | Gas Company | +49 3560379023 | | Frank Niederle |
| 17 | | Friedrich-List-Platz 2 | Dresden | DE | | Corporate Office | +49 8006686868 | | Dirk Hengst |
| 18 | | Rudolf-Diesel-Straße 1 | Gelnhausen | DE | | Gas Company | +49 605182330 | | Steffen Lorey |
| 19 | | Alter Postpl. 2 | Waiblingen | DE | | Medical Supply Store, Orthopedic Shoe Store | +49 71519815536 | | Daniel Schöb |
| 20 | | Neuenkampsweg 36 | Friesoythe | DE | | Electric Utility Company, Gas Company | +49 44917882420 | | Michael Lünsmann |
