Koesters Hausgemacht produces only one product - soups. Those soups, however, are delicious, vegan, gluten-free and can be delivered to your office in the Hannover area.
We had these soups in our office as "backup" for situations when a trip to the canteen was not possible because of meetings, and for days when we were simply craving good soup. They have some very nice creations (carrot-ginger, gazpacho, lentil, potato and so on), and sell in some selected shops in the Hannover area (e.g. in the Karstadt close to the main train station).
The downside is the price - 5 EUR per bottle (0.5 l) of soup is not exactly cheap, but in this case, well worth the price of the quality ingredients.
Cons: Price: 5 EUR per bottle