Established in 1971, Signmax is a provider of custom signs and banners for all business types. Based in Fresno, Calif., the company is a manufacturer of signs serving the Central Valley. It creates signs for various purposes, such as construction signs, parking lot signs, custom signs, decals, banners, vehicle lettering, digital printing, screen-printing and vehicle wraps. Signmax is a part of Alert-O-Lite Inc., which is a certified retailer of traffic control devices, including reflective signs, traffic cones, barricades, crowd control barriers, strobe lights and more.