About American Signal Company
- American Signal Company (AMSIG) is a manufacturer of a comprehensive line of programmable changeable message sign products, both stationary and portable, suited to a variety of informational and traffic control applications. Additionally, AMSIG manufactures signs, signals, and systems for traffic control and congestion mitigation for situations or incidents that recur frequently or at cyclical intervals (i.e. reversible lane usage, school zone speed limits, weigh station operations, etc.).