To ATCC Valued Customers,

ATCC stands ready to support our customers’ needs during the coronavirus pandemic. Our first job is to listen to and observe what our customers need, and meet those needs with quality products and services. While we are not currently experiencing delays due to this pandemic, we expect that we could see them as the situation evolves. If you experience any issues, please contact ATCC Customer Service at For Technical questions please contact Thank you for your understanding, patience and flexibility as ATCC does everything it can to help reduce the impact of the coronavirus pandemic to our valued customers.

Working Cell Bank Development

Working cell banks (WCBs) are prepared from the MCB under defined cell culture conditions. Quality control tests, via DNA profiling techniques, are performed to confirm that the MCB and the WCB are genetically identical, as well as to ensure the WCB is free of contaminants.

Custom Working Cell Bank Development Service Description:

  • Procurement of starting material/cells (source can be ATCC, commercial vendors, or customer)
  • Development of product specifications (e.g. product description, total cell count concentration – total cell/mL, minimum volume/vial, estimated passage at completion)
  • Working cell bank creation (expansion)
  • QC testing (e.g. viability, mycoplasma, sterility, etc.)
  • Storage and shipment (ongoing supply)