Celexion is a protein discovery and engineering company that utilizes its proprietary SECANT™ platform to display complex proteins on the surface of eukaryotic cells.  This SECANT™ platform, combined with state-of-the-art library construction and screening capabilities, allows the Company to rapidly discover and engineer new proteins for applications in therapeutics, diagnostics, and life science tools.  Celexion is a Flagship VentureLabs company.

Noubar Afeyan, Harry Wilcox and Brian Baynes serve on the Board of Directors.