NordSüd Verlag

NordSüd Verlag AG, doing business in the United States through the subsidiary NorthSouth Books Inc., is a Swiss publisher specializing in children's literature, founded in 1961 as Nord-Süd Verlag by Dimitrije Sidjanski and Brigitte Sidjanski in Zürich, Switzerland. The company is best known for publishing the Rainbow Fish series by Marcus Pfister. Initially family-owned, the publisher underwent several ownership changes and was acquired by the Oetinger Publishing Group in 2012. NorthSouth Books publishes original titles by authors and illustrators from the United States, and focuses on themes aimed at connecting cultures through children's literature.

From the Wikipedia article “NorthSouth Books”, licensed under CC BY-SA 4.0.

An imprint is a brand inside a larger publishing house, often with its own editors and list. Imprints of large groups usually acquire through literary agents; read recent titles to see whether your book fits the list, then target agents who sell to it.