- American Traffic Safety Services Association
National organization representing companies and individuals in the traffic control business.
- Central Parking Corporation
Offers a range of parking and transportation services to reduce traffic congestion.
- International Parking Institute
Trade association representing parking operations worldwide.
- Aervoe Industries
Manufacturer of coatings, cleaners, lubricants, and inverted marking and striping paints.
- Federal APD
Manufactures parking, revenue and access control systems.
- Union Switch & Signal, Inc.
Designs, manufactures, and services signaling, automation, and control equipment and systems for the railroad and mass transit industries.
- Quixote Corporation
Manufacturer of highway crash cushions, wireless measuring and sensing devices, computerized highway advisory radio, and other transportation safety products and services.
- Image Sensing Systems
Company behind Autoscope, also known as image processing or artificial vision, a technology that combines video imaging with computerized pattern recognition.
- Traffic and Parking Control Co., Inc (TAPCO)
Signs & supplies, signmakers, diecuts, hardware traffic control products, pavement marking and more.
- Econolite Control Products, Inc.
Manufactures traffic control equipment, from mechanical components to digital electronics and traffic systems.
- Parking Today
Monthly magazine for those interested in commercial and institutional parking.
- Polara Engineering
Manufacturer of accessible pedestrian signals and push buttons for the blind and disabled.
- Barrier Systems, Inc.
Manufacturers of the Quickchange Moveable Barrier for protection of highway workzones.
- Flint Trading, Inc.
Offers preformed thermoplastic pavement markings, and instruments used to measure retroreflectivity/color of pavement markings and sign sheeting visibility.
- Work Area Protection Corporation
Manufacturer of traffic control and work zone safety products.
- Barco Products
Offers recycled plastic and rubber traffic control and facility maintenance products including parking blocks, wheel stops, speed bumps, picnic tables, park benches, and floor mats.
- Professional Traffic Graphics, Inc.
Offers software for creating traffic control diagrams.
- Pelco Products, Inc.
Manufactures and supplies a range of heavy duty parking barriers, automatic bollards, turnstiles, and parking and ticketing systems.
- MITI Manufacturing
Offers vehicle immobilizers, automated parking attendants, and personal decontamination equipment.