| Triskelion Ltd | | Offers online PostNet decoding software written in JavaScript with instructions and FAQ. |
| Unibar, Inc. | | Develops and markets barcode software for Linux, Unix, Windows 98/ME/NT/2000/XP operating environments and the web. |
| UPC Database lookup | | You may look up UPC codes here. Currently over 340,000 UPC descriptions and always adding more. |
| UPC Online Database Project | | An online UPC database project that allows multiple people to search and submit UPC codes to a centralized/standardized database. |
| Visuascan | | Barcode and product identification specialists providing custom information management solutions to fit your personal needs. Canada. |
| Wasp Bar Code | | Professional barcode software and hardware solutions including complete kits, barcode fonts, label software, scanners, printers and developer toolkits. |
| Z-Space Technologies, Inc. | | Offers custom and off-the-shelf barcode, inventory control, portable data collection, and database solutions. |
| Zoner Barcode Studio 2 | | Product info, trial version download, and online ordering for this software that generates (and imports) barcodes for printing or export as images or data. |
|
|
