XCell Science XCell Science is a biotechnology company specialized in the production of neural cells from human pluripotent stem cells (PSCs). | ![]() Hopstem Biotechnology Hopstem Biotechnology (霍德生物) is a company committed to producing neural stem cell products for CNS drug screening and toxicity evaluation, as well as clinical cell therapy and regeneration medicine. | Arrowhead Pharmaceuticals Arrowhead Pharmaceuticals is a biopharmaceutical company that specializes in drug development. | |
Founding Date | Founding Date 2010 | Founding Date 2017 | Founding Date 2001 |
Type | Type Private | Type Private | Type Public |
Tags | |||
Locations | Locations Novato, US HQ Novato, US Novato, US | Locations Hangzhou Shi, CN HQ Houston, US | Locations Pasadena, US HQ Madison, US San Diego, US |
Employees | Employees 2 | Employees 614% decrease | Employees 13416% increase |
Funding | |||
Total funding raised | Total funding raised N/A | Total funding raised $ 1.7m | Total funding raised $ 147.1m |

Hopstem Biotechnology (霍德生物) is a company committed to producing neural stem cell products for CNS drug screening and toxicity evaluation, as well as clinical cell therapy and regeneration medicine.
View companyArrowhead Pharmaceuticals is a biopharmaceutical company that specializes in drug development.
View company