Type segmentation isolates the Platform Support Vessel market into distinct vessel architectures, each influencing total market volume through capability‑driven pricing and fleet composition. Multipurpose vessels combine dynamic positioning, heavy‑lift cranes, and accommodation modules, capturing the largest share because they serve diverse offshore contracts and command premium rates. Anchor‑handling tug supply (ATS) vessels specialize in mooring and repositioning of floating platforms; their niche utility limits scale but they are essential for de‑risking drilling campaigns, contributing a stable, mid‑tier revenue stream. Cable‑laying vessels are engineered with dedicated cable tanks and tensioners, supporting subsea telecom and power grid expansion; their market footprint expands in line with renewable‑energy interconnect projects, adding incremental growth. Heavy‑lift vessels feature reinforced decks and high‑capacity cranes for transporting massive modules; although fewer in number, their high unit price inflates overall market size. Collectively, these type categories define the structural backbone of Platform Support Vessel segmentation, with each segment’s capacity, utilization rate, and charter value aggregating to the global market total.