A novel soybean cultivar, designated 943013, is disclosed. The invention relates to the seeds of soybean cultivar 943013, to the plants of soybean 943013 and to methods for producing a soybean plant produced by crossing the cultivar 943013 with itself or another soybean variety. The invention further relates to hybrid soybean seeds and plants produced by crossing the cultivar 943013 with another soybean cultivar.