Segmentation by type classifies the market into five core nanomaterial families: Carbon Nanotubes (CNTs), Graphene, Nanoclay, Nanofiber, and Metal‑Oxide Nanoparticles. CNTs lead with an estimated 30 % share, leveraged for their exceptional tensile strength and electrical conductivity in structural and conductive composites. Graphene follows at 25 %, prized for its superior thermal conductivity and barrier properties, enabling high‑performance thermal‑interface materials. Nanoclay occupies 20 % of the market, offering cost‑effective flame‑retardant and barrier enhancements for polymer matrices, especially in construction and automotive interiors. Nanofiber contributes 15 %, driven by its high surface‑area-to‑volume ratio that improves mechanical reinforcement and filtration capabilities across aerospace and energy applications. Metal‑oxide nanoparticles round out the remaining 10 %, providing catalytic and UV‑blocking functions critical to electronics and energy storage devices. The relative weight of each type reflects the balance between performance demands, material cost, and scalability, thereby defining the overall market taxonomy for Composite Based Nanomaterials.