Yes.

A nonresident’s income from California sources includes income from a business, trade, or profession carried on in California. If the nonresident’s business, trade, or profession is carried on both within and outside California and the part outside California is separate and distinct from the part within California, only income from the part conducted within California is California source income.

https://www.ftb.ca.gov/individuals/filertn/nonresidents-part-year-residents.shtml#how_taxed