Kromnigon is a biotech company focused on new technologies for multicolor microscopy and multiplex IHC. The company was founded in 2015 by Per Fogelstrand and Ulf Yrlid. It started with a joint research project at Gothenburg University, Sweden, regarding leukocyte involvement in endothelial repair. The task was histologically challenging, and from frustration, new ideas emerged of how to convert multiplex IHC from craftsmanship to reliable methods that anyone in the lab can perform. In 2021, Kromnigon secured funding to expand and is now established on the premises at AstraZeneca BioVentureHub in Gothenburg.