Climbway
- 4D Office: Connect MS Office and 4D; 4D TAPI: interfaces 4D with phone systems
- http://www.climbway.com/

Gallery Systems - EmbARK
- 4D-based ImageBase used by art museums, universities, corporate archives, collectors, and artists. EmbARK provides a flexible template composed of more than 1,400 fields and 75 related files, integrating and networking all departments or functions in an i
- http://gallerysystems.com/products/embark.html

Exenevex
- Developer tools (MySQLConnect for, 4D, DBGateway for 4D, , EVX_AddressBook, EVX_SHELL, PostgreSQL for 4D)
- http://www.exenevex.com/

Goodsoftware
- Developers of 4DSqlite3, which connects 4D and sqlite
- http://www.olympos.com.au/goodsoftware/

TEC Solutions
- Plugins and components: TECS SQL, TEC Query, Soundex, TEC TCP
- http://www.tecs.com/4d.htm

Rose
- 4D Agenda: scheduling plugin. 4D Column: for display of lists. VMySQL: connect mySQL and 4D. 4D Toolbox: some utility routines.
- http://www.rosedev.nl/

Jens Blomster's tools
- Useful tools and plugins (eg RobotWatchdog, SimpleSQL)
- http://www.algonet.se/~blomster/tools.html

LiveSync4D
- Adds real time replicating/mirroring, syncing via TCP/IP to any 4D database. Allows remote users to sync with server. Allows 24/7 live backup.
- http://www.mdgcs.com/livesync4d.html

OLE4D plugin
- Use ActiveX and OLE controls in your 4D application.
- http://www.clsdatapro.com/

Foundation
- Shell for 4th Dimension to create custom menus environments. Built-in support for 4D Write and 4D Draw.
- http://www.foundationshell.com/

A Dog And His Boy
- LDAP4D implements the LDAP C API in a 4D sort of way. It allows 4d applications to perform LDAP client operations.
- http://www.adogandhisboy.com/ldap4d.php

Stuff-ToolKit for 4D
- 4th Dimension plug-in that allow to use Aladdin Systems Stuffit Engine directly from 4th Dimension programming language.
- http://www.4d-toolkits.com/stuff/

4D Plug-ins on Info-Mac
- Plug-ins include Color 4D and File Toolkit for 4D.
- http://hyperarchive.lcs.mit.edu/HyperArchive/Abstracts/dev/db/a4d/HyperArchive.html

JCS Développement
- Home of Rescue for 4D, Rescue for 4D Data, Emergency for 4D. Tools to repair 4D structure or data file.
- http://www.jcsdev.com/jcs-us/Products.htm

Development and Database tools and books
- Committed Software is the publisher of SanityCheck, DataCheck, Method Maddness, AutoDoc, and 4D Version Control software tools. It also publishes "Training Guide: Getting Started 4D".
- http://www.committedsoftware.com

Island Data Management
- ZipCenter adds ZIP Code lookups and GIS searches to any 4D database. ZipCenter is fast, easy to use, and simple to install.
- http://www.island-data.com/products/zipcenter/index.html

e-Node
- European portal for all 4th Dimension software and books.
- http://www.e-node.com/

Foresight Financials
- Foresight Financials offers world-class accounting, management, sales/marketing and inventory modules in one, fully-integrated, single application system.
- http://www.foresight.com

Automated Solutions Group
- ASG is the developer and/or publisher of several 4D plug-ins.
- http://www.asgsoft.com/

Internet ToolKit for 4D
- ITK transforms any 4D database into an Internet server or client.
- http://www.internet-toolkit.com/

Escape
- The homepage of QPix, QMedia, QuickList, BLOB Manager, and QFree
- http://www.escape.gr/q/

Braided Matrix, Inc.
- Develops and markets 4th Quarter Accounting Solution (4Q) a multi-user accounting system for small to mid-sized businesses.
- http://www.4thquarter.com/