In the first generation was Christiaan Sepp (c. 1700-1775), born in Goslar who established himself in Amsterdam as an etcher and engraver of land and sea maps. He was working from his own collection of preserved butterflies and insects wrote and illustrated Nederlandsche Insecten in English, Dutch Insects, which appeared from 1762 to 1860, the company's first long-term project.
His son, Jan Christiaan Sepp (1739-1811), joined his father's business and succeeded him on his death. He was an engraver, etcher and bookseller and author as well as illustrator for Nederlandsche vogelen in English, Dutch Birds. Later, he brought his son Jan (1778-1853) into the business, which then traded as J.C. Sepp en Zoon.
The Sepp company became famous for the numerous large natural history collections of plates that appeared between 1768 and 1860. The company no longer exists.
See also
Anton Sepp von Seppenburg (1655−1733), Jesuit missionary in South Americaa
Johann Nepomuk Sepp (1816-1909), German historian, church historian and politician
