# JOINN Biologics US

> JOINN Biologics US is a Richmond, California biologics CDMO that helps biotech companies assess molecules, develop cell lines and processes, run analytical and formulation work, and manufacture clinical material. It connects this CMC work with preclinical services in the wider JOINN group and also has access to manufacturing operations in China.

- **Founded:** 2018
- **Headquarters:** Richmond, United States
- **Founders:** Tao He (Co-founder and General Manager)
- **Products:** Developability assessment, Cell line development and master cell banking, Process and analytical development, Formulation development, cGMP manufacturing
- **Notable:** Established US operations in 2018 and later developed manufacturing capacity in China., California Department of Public Health biomanufacturing certificate for clinical-phase production, according to co-founder Tao He., Published technical case studies on antibody developability and CHO stable cell line development.

## Products & services

- **Developability assessment** — In silico and in vitro tests of antibody stability, aggregation, purity, glycosylation, binding and other early liabilities.
- **Cell line development and master cell banking** — CHO cell line selection using the JOINN-CHO and CHOZN platforms, with banking and characterization.
- **Process and analytical development** — Upstream culture, downstream purification, assay development and qualification for biologics.
- **Formulation development** — Screening and confirmation work to assess stability under concentration, freezing, storage and shipping conditions.
- **cGMP manufacturing** — Clinical material production, drug substance manufacturing, quality control and regulatory documentation; Richmond equipment includes up to 500 L single-use and 1,000 L stainless steel bioreactors.
- **Bio-Analytical Services** — A JOINN Biologics and JOINN Laboratories service line for analytical and clinical stability support.

## Achievements

- Established US operations in 2018 and later developed manufacturing capacity in China.
- California Department of Public Health biomanufacturing certificate for clinical-phase production, according to co-founder Tao He.
- Published technical case studies on antibody developability and CHO stable cell line development.
- Entered a named strategic partnership with Xbrane Biopharma in June 2026.

## Latest updates

- **2026-06** — Xbrane and JOINN announced a strategic partnership for Xdarzane pilot-scale process development and analytical similarity work.
- **2025** — JOINN Biologics and JOINN Laboratories announced Bio-Analytical Services and a US commercial office, according to company LinkedIn posts.
- **2024-05** — Tao He described JOINN’s origin, two-site strategy and complex-biologics focus in an interview published by the company.

## Links

- Website: https://www.joinnbio.com/
- LinkedIn: https://www.linkedin.com/company/joinn-biologics

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Profile page: https://yespress.io/joinn-biologics-us
Published by YesPress — https://yespress.io
Last updated: 2026-09-30