VersatileBio is a leader in T4 phage technology. The company has invented and developed a novel and unique T4 and T4-like phage method, utilizing T4 prolonged large phage particles surface and inside phage genome, where the exogenous protein and its coding-DNA simultaneously expressed and displayed in & on T4 phage particles (meaning, phage capsid surface loads the target protein and internal phage genome loads protein-coding DNA). The resultant recombinant T4 phage can consistently maintain genetic properties in offspring and used as a simple, high-yield tool for both DNA and protein production.