53Biologics is an advanced therapy CDMO specializing in biologics production, from pDNA and mRNA to recombinant proteins. The company has fully integrated mRNA therapeutic services — including process development, manufacturing, and analytics — and provides support from research through commercialization. 53Biologics uses USP and DSP processes, tech transfer, and robust analytical tools to efficiently scale mRNA therapies in-house. Headquartered in Spain, they maintain a development and manufacturing facility and a GMP warehouse and analytical laboratory facility in Boecillo Technological Park in Valladolid, Spain.