The Types segment of HIV Vaccine segmentation classifies candidates by technological platform, each with distinct development risk and manufacturing implications. Live‑attenuated vaccines, though historically potent, face safety constraints limiting their market share. Recombinant protein subunit vaccines, leveraging purified HIV envelope proteins, dominate the mid‑risk tier and contribute significantly to the pipeline due to scalable production. Viral‑vector platforms, such as adenovirus or MVA vectors, offer robust immunogenicity and currently attract the largest proportion of late‑stage clinical trials. DNA/RNA‑based vaccines, accelerated by mRNA success in other infectious diseases, are rapidly gaining traction, representing a high‑growth niche. Peptide‑based vaccines, focusing on conserved epitopes, occupy a specialized segment aimed at broad‑strain coverage. By mapping these sub‑types, analysts can attribute revenue potential and investment intensity to each technology, clarifying how type‑specific dynamics shape the overall market landscape.