Perimeter Solutions, Inc. engages in the provision of global solutions for fire safety and specialty products industries. The company is headquartered in Clayton, Missouri and currently employs 319 full-time employees. The company went IPO on 2021-11-09. Its Fire Safety segment is a formulator and manufacturer of fire management products that help its customers combat various types of fires, including wildland, structural, flammable liquids and other types of fires. Its specialized equipment includes air base retardant storage, mixing and delivery equipment; mobile retardant bases; retardant ground application units; mobile foam equipment, and equipment that it custom designs and manufactures to meet specific customer needs. The Specialty Products segment includes operations that develop, produce and market products for non-fire safety markets. The company also includes Phosphorus Derivatives, Inc., which produces Phosphorus Pentasulfide (P2S) based lubricant additives. The firm also acquired Medical Manufacturing Technologies LLC, which provides engineered machinery and associated aftermarket consumables, parts, and services.