To Plastics is a Seattle-based thermoforming company specialising in custom plastic products and packaging for medical, pharmaceutical, horticultural, industrial, electronic, agricultural, and recreational markets. The company operates certified cleanrooms for medical-grade work and offers in-house design, tooling, and manufacturing capabilities, alongside plastic roll stock extrusion services. They are particularly recognised for their expertise in medical device packaging and plant trays for the horticulture sector. Referrals suit companies needing custom thermoformed plastic solutions from concept through production, or those requiring high-quality extruded roll stock in various gauges and volumes.