Avidity

Avidity is a privately held, Colorado-based biotechnology company specializing in molecular affinity tools centered on its patented AviTag™ peptide tag technology. The company operates a platform and services business model, generating revenue by licensing its technology and selling related reagents, vectors, and biotinylated products to the life sciences research community. With a long-standing history and adoption by top pharmaceutical firms, Avidity is exploring new applications in diagnostics and bioluminescence while maintaining a focus on customer support and product quality.

AviTag™ technology: a 15-amino acid peptide tag that is enzymatically biotinylated by the BirA enzyme, enabling specific, high-affinity immobilization and detection via the biotin-streptavidin interaction.

Avidity competes in the life sciences research tools market against major global suppliers like Thermo Fisher Scientific, Abcam, and Merck KGaA, which offer extensive portfolios of labeling and detection reagents. Its niche is defined by the specific enzymatic biotinylation offered by AviTag, competing with other peptide tag technologies (e.g., His-tag, FLAG-tag) and chemical biotinylation methods.