Viral Vector Core

Viralgen is a specialized contract development and manufacturing organization focused on adeno-associated virus (AAV)-based gene therapy manufacturing. The company provides end-to-end services spanning construct optimization, plasmid DNA production, process development, cGMP clinical manufacturing, and commercial-scale production for clients developing genetic medicines. Its core technology is the Aava manufacturing platform, built on the proprietary Pro10 cell line licensed from AskBio, and the company positions itself as an AAV-dedicated manufacturer rather than a therapeutic developer with its own drug pipeline. Viralgen operates as an independently run subsidiary of AskBio within the Bayer group and serves biotechnology, pharmaceutical, and rare-disease partners worldwide. The company is based in San Sebastian, Spain, and emphasizes large-scale, high-yield, scalable rAAV manufacturing across multiple serotypes.