CSL Vifor is a global specialty pharmaceuticals company in the treatment areas of iron deficiency, dialysis, nephrology & rare disease.

[22] CSL Vifor is present in North and South America, Europe, the Middle East and Asia Pacific and is active in over 100 countries all around the world.

[24] The company is headquartered in St. Gallen where its core manufacturing capabilities on active pharmaceutical ingredient (API) production of its iron therapies are concentrated.

[13] In China, Vifor Fresenius Kabi is among the top 10 multinational pharmaceutical companies as a market leader in clinical nutrition, anesthesia and nephrology.

[26] The Group's businesses include CSL Vifor, focused on iron deficiency and iron deficiency anaemia, and Vifor Fresenius Medical Care Renal Pharma, focused on kidney disease patients, including anaemia, mineral and bone management, cardio-renal conditions, and rare diseases.

Iron-deficiency anemia,[22] inflammatory bowel disease (IBD), chronic heart failure (CHF)[22] and patient blood management (PBM)[22] are conditions treated by iron-based products of CSL Vifor.