Question: What is the name of the chartered trade company in which Jan Valckenburgh served as an assistant trader?
Sentence (from "Dutch West India Company"): Dutch West India Company (Dutch: "Geoctroyeerde Westindische Compagnie" , ] or Dutch: GWIC ; English: Chartered West India Company ) was a chartered company (known as the "WIC") of Dutch merchants as well as foreign investors.
Relevant evidence: Yes