Seres Therapeutics

Seres Therapeutics develops FDA-approved microbiome therapeutics such as SER-109 for recurrent C. diff. It offers a commercial, standardized product with clinical trial backing rather than investigational FMT. Strengths include regulatory clearance and scalable manufacturing. Compared to OpenBiome it operates on a paid model with insurance pathways instead of donation-supported access and focuses on drug approval over open research resources.