Key companies in the global subcutaneous immunoglobulin market include Grifols S.A., CSL Behring LLC, Shire Plc., Biotest AG, Kedrion S.p.A., Octapharma AG, Baxalta Incorporated, and Talecris Biotherapeutics, Inc. The global subcutaneous immunoglobulin market is likely to present an opportunity-filled landscape for new players in the coming years, while steady expansion efforts are likely to help existing market players consolidate their position in the subcutaneous immunoglobulin market.