Book-Leads GmbH - Hamburg

fo education gmbh - Würenlos

Bommersheim Consulting GbR - Munich

Nancy E Randolph, Publishing Consultant - Topsham, Maine

Linkgroup - Zürich

m.publishing - Landshut

3f8h.net / electronic publishing - Emmendingen

Andy Prinz Publishing - Maur

SATZ-Art Prepress & Publishing GmbH - Bochum

Cascadia Author Services -