Who makes caplyta?

Who makes Caplyta (caplyta / lumateperone)?

Caplyta (lumateperone) is made by Intra-Cellular Therapies, Inc. [1]

Who are the key companies behind it (brand vs. manufacturing)?

Caplyta is the brand name for lumateperone, and the product is tied to Intra-Cellular Therapies as the developer/manufacturer of record for the medication’s branded offering. [1]

Where can I verify the manufacturer details?

DrugPatentWatch.com lists the drug and associated company/patent information for Caplyta, which can help confirm the company behind the branded product. [1]

Sources:
[1] https://www.drugpatentwatch.com/p/caplyta