libdatamatrix
- Embeddable and highly extensible software library for encoding and decoding Data Matrix ECC200 barcodes (released under GPL license).
- http://oss.devit.com/datamatrix/

PDF417-Online
- Providers of software enabling the encoding and decoding PDF417 barcodes, including a Java-based PDF417 SDK and online encoding/decoding.
- http://pdf417-online.com/

GMSE Imaging
- Detect and write barcodes with GMSE Imaging: Detects and decodes all Code 11, Code39, Code 93, Code 128, EAN 8, EAN 13 and 2 of 5 interleaved barcodes from an image.
- http://imaging.gmse.net/

BeeTagg Barcode Reader
- BeeTagg 2D barcode scanning software for mobile phones.
- http://www.beetagg.com/

Black Ice DataMatrix Barcode Reading SDK/ActiveX Toolkit
- Software library for Windows providing functions for reading, decoding, searching, and detecting orientation of Data Matrix barcodes. Provides single or multiple-barcode scans from any orientation with checksum character handling.
- http://www.blackice.com/barcodeDataMatrix2DRead.htm

PDF417Kit Software Inc.
- Professional barcode software development company that provides an SDK for barcode recognition from digital images. The SDK comes with a dynamic link library (DLL) for Windows.
- http://www.pdf417kit.com/

ActiveSymbols Enterprise Server
- Server software providing 1D and 2D barcode decoding for any network enabled device, such as a mobile phone. Also provides text recognition, object recognition, and biometrics.
- http://www.activesymbols.com/

Intelcom
- Software for encoding and decoding 1D and 2D barcodes in Windows, Linux, Symbian, Java, and embedded platforms. Supported symbologies include Data Matrix, PDF417, QR Code, and linear codes.
- http://www.intelcom.ru/2d/english/

libdmtx Project
- Open source software library for Linux that enables encoding and decoding of Data Matrix ECC200 barcodes (released under LGPL license).
- http://www.libdmtx.org/

BC-Scan Barcode Decoder
- Free barcode decoding software (Code39, Interleaved 2 of 5) for personal computers with a "dumb" barcode wand. Runs on MS-DOS and Windows 95.
- http://alumnus.caltech.edu/~josephc/barcode.html

Stecos Softwares
- Barcode recognition tools for linear, PDF417, and Data Matrix symbols. Designed for integrating with Windows or Linux applications.
- http://www.stecos.net/

QS QualitySoft GmbH
- Windows software decodes linear bar code types 2D-bar codes: PDF417 and Data Matrix ECC200.
- http://www.qualitysoft.de/index_en.html

Tasman Barcode Reader Java and .Net SDK's
- These packages identify and read barcodes contained within Java Image and .Net Bitmap instances. They provide easy routes to giving Java and .Net applications a barcode reading ability.
- http://www.tasman.co.uk/

Omniplanar, Inc.
- SwiftDecoder software decodes linear, postal, 2D, PDF417, MaxiCode, Data Matrix, and QR Code barcodes. For use with all types of imaging scanners including hand held, presentation, and conveyor belt. Runs on Win NT/98/CE and embedded processors (Hitachi
- http://www.omniplanar.com/

Axtel, Inc.
- Barcode recognition and printing of PDF417, Data Matrix, and linear symbols. For Windows, embedded, and computer vision systems. Custom design work upon request.
- http://www.axtel.com/

NeuroCheck
- Windows 95/NT based image processing system for automatic presence verification, barcode reading, character recognition, robot guidance and gauging.
- http://www.neurocheck.com/