VectorBuilder, founded in 2014 and headquartered in Chicago, Illinois, has raised $57.2M, achieving unicorn status in May 2023. The company provides an online platform for vector design, custom cloning, and virus packaging across lentivirus, adenovirus, AAV, MMLV, and piggyBac systems. With 201–500 employees, VectorBuilder serves researchers and biotech companies worldwide, streamlining gene therapy development and molecular biology workflows. Backed by China Chengtong and Guangzhou Yuexiu Industrial Investment Fund Management, it is a leading biopharma outsourcing and vector design platform for precision therapeutics.