DB/C Users
- Downloadable DB/C source code examples, program include files, cverb DLLs, linux c source code, FAQs, tutorials, forum.
- http://dbcusers.com

Sunbelt Computer Systems, Inc.
- Creators of PL/B (formerly DATABUS) compilers and utilities.
- http://www.sunbelt-plb.com/

J15
- Technical committee that has developed an ANSI Standard for the Programming Language PL/B.
- http://www.sysmaker.com/infopro/x3j15/

plb.brainbuild.com
- A PL/B programming resource dedicated to helping developers get the most from the PL/B (Databus) language. Samples, forums, and informative articles.
- http://plb.brainbuild.com

DbcDOM
- XML library for DATABUS language. There are basic functions for export/import XML files. Contains additional classes for LinkedLists, Stacks, and Exceptions.
- http://dbcdom.sourceforge.net/

Computer Transaction Systems
- Programming consulting services for Sunbelt PL/B databus program applications.
- http://www.ct-sys.com/

DB/C Software Company
- Systems Software for the PL/B Programming Language. DB/C DX, DATABUS, and PL/B overview and history.
- http://www.dbcsoftware.com/