Leominster, Massachusetts, home to Monson Companies headquarters, holds the honorable title of “Plastic City”! Monson Companies’ Rubber & PlasticsĀ Group has supported the industry reaching back to the Companies’ origin and although our footprint and portfolio have grown dramatically over the decades, our commitment has not changed. With our industry-dedicated sales staff, we support a customer base that spans the entire East Coast and our product portfolio exceeds more than 100 raw materials from plasticizers, to pigments, to fillers and functional additives.

In addition to our trained sales staff, our in-house technical support team and equipment are available for testing and product development.