AMSI was founded by Lisa Johnson and Virginia Green in Hong Kong in the 1940s. The company is located in Petaluma, California. AMSI offers a variety of scenery products, including ground foam, tree structures, palm trees, covering material for finishing trees and bushes, grass mats, terrain brush, landscaping components, big oak tree kits and wisteria vine kits.

Scales: Products can be used with a variety of modeling scales
Feature Products: Big Oak Tree & Wisteria Vine Kits, and 52 colors of ground foam in three different grades
Price Range: Decoders: $2.99-$200.00