

Experience.
Stability.
cGMP Cell Banking Services from a Trusted US-based CDMO
As a leading CDMO in the US, GBI provides comprehensive cGMP-compliant cell banking services to support early to late-stage clinical studies, and ultimately commercial manufacturing.
Whether you’re developing a “naked” mAb, bio-conjugate, or scaling a complex biologic (bispecific or fusion proteins), our cGMP cell banking capabilities ensure the stability and integrity of your production cell lines throughout the product lifecycle.
Contact UsFull-Service Cell Banking for RCBs, MCBs, WCBs, and EPCs
GBI manufactures and stores the full range of cell banks, including:
- Research Cell Banks (RCBs)
- Master Cell Banks (MCBs)
- Working Cell Banks (WCBs)
- End of Production Cell Banks (EPCs)
All cell banks are processed using a controlled-rate freezing system and stored under ultra-low temperatures in cryogenic vapor-phase liquid nitrogen chambers to ensure long-term viability.
As a cGMP manufacturer, we implement rigorous protocols to support consistent performance in both research and commercial settings.
Quality-Controlled Testing and Regulatory Alignment
Each cell bank is tested in alignment with current guidelines and best practices.
We partner with trusted, qualified contract testing organizations and maintain strict oversight through our internal quality department to verify the following:
- Identity
- Purity
- Stability
- Viability
- Safety
Our secure inventory systems and traceable records provide peace of mind and full transparency for every batch stored.
Supporting Cell Culture Development and Upstream Processing
Cell banking is foundational to effective cell culture development and upstream processing. By partnering with GBI—a US-based CDMO with expertise in theranostic and biologic drug development—you gain a dependable ally who understands cell line stability’s critical role in scalable drug product development.

We work with a number of companies around the world to advance our portfolio of drug candidates, and one of our primary collaborators highly recommended GBI based on the track record they had on a number of their projects that GBI had worked on.
Choose a CDMO US Biotech Companies Trust
GBI’s flexible, compliant, and science-driven approach to cell banking supports programs at every stage, from discovery to late-phase manufacturing. As one of the most reliable CDMO companies in the US, we are proud to help biopharma innovators safeguard their most valuable assets.
Contact us today to learn how our cGMP cell banking services can support your next project.
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