Cellular Technology Limited — CTL Email Format

Biotechnology ResearchOhio, United States51-200 Employees

Cellular Technology Limited (CTL) is a biotechnology research company focusing on immune monitoring and ELISPOT technology, headquartered at 20521 Chagrin Boulevard, Shaker Heights, Ohio 44122, United States. It employs between 51 and 200 people. CTL operates a CLIA-certified, GLP-compliant contract laboratory with a weekly processing capacity of up to 450 samples, offering assays such as ELISPOT, ELISA, FACS, CBA, and proliferation, along with whole blood processing and optimized PBMC cryopreservation. The company's ELISPOT offerings encompass protocols and reagents for PBMC cryopreservation and testing, human PBMC reference samples, a large cryopreserved PBMC library, ImmunoSpot kits and analyzers for data analysis, and BioSpot tools for serology and related assays. CTL has served more than 2,000 clients worldwide for nearly two decades, and in April 2026 VION Biosciences LLC acquired Immunospot.

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