InfoService
Provides custom database solutions including analysis, design, programming and support services.

Barrymore Information Technology, Inc.
Custom cross-platform software development using 4th Dimension and internet technologies.

Outside Technology
Marin County consultancy building custom client-server 4D systems for Macintosh and Windows. Publisher of Book'em!, a reservations system for outdoor recreation companies; ClassMaker, management software for language schools; and DataLicense, the security system for 4D developers.

HD Industries, Inc.
Providing custom database software and systems support since 1990.

Braided Matrix, Inc.
Source code, analysis, design, programming, and project management for the purpose of creating integrated systems based on the 4th Quarter Accounting Solution platform.

Syncor Systems, Inc.
4D and Oracle database consultants and publisher of Syncor's Design Assistant. SDA is a method editor productivity toolbar for 4D.

Business Brothers Software Products, Inc.
Custom and vertical market software developer and reseller, and systems integrator specialized in 4th Dimension since 1987.

Mitchenall.com
Specialists in providing high-quality, training, consultancy, products and bespoke development for all types of business requirements.

MPA Inc.
Custom cross platform 4D database developers and web hosting services. Custom web servers and database web servers without middleware.

DataCraft, Inc.
Offers software solutions for meetings, conferences, and trade shows. DataCraft also offer tools and support for 4th Dimension database developers.

Deep Sky Technologies, Inc.
Software and database consultants for direct market, custom, and internet enabled applications. Repected as one of the best 4D development shops in the world.

Rietz Enterprises
Custom database solutions specializing in 4th Dimension including integration with World Wide Web and telephony systems.

Wizdom Microsystems, Inc.
Developers of custom 4th Dimension solutions for business, research & technology firms of all sizes. Stand alone, client/server, SQL front ending, Web front ending. 15 years of database experience.

Escape Information Services
Maker of the leading multimedia plug-ins and of other quality enhancements for 4D. Custom development of imaging plug-ins, QuickTime components, and industrial-strength optimizers.

Tech Solutions Inc.
Computer consulting firm specializing in the sale and development of computer software for web and client/server applications.

Dr. Billy & Associates
Apple Macintosh computer, software, 4D 4th Dimension relational database development, professional eCommerce and web page site design freelance consultants serving businesses from San Diego to Santa Barbara.

Cadence Development
Provides database consulting services using 4th Dimension and FileMaker Pro.

Matrix Software
Developers of database publishing systems for the newspaper, retail, catalogue, print and publishing markets.

A&G Development
BOA, a 4D software package for administrative use, that includes accounting, construction, calculation, and web publishing).

Mac Solutions
Customised software development on 4D for Macintosh, Windows, Intranet, and client-server. Experience in porting FileMaker Pro databases to 4D.

World-Wide 4D Developer Directory
Unofficial directory of 4D Developers.

ld2design
Custom database development, end-user training and support, and web page design.

Mehdiward Information Systems
Services include database consultancy, software development, web integration and technical training.

Lamina Limited
Specialists in bespoke information systems, and 4th Dimension and Oracle systems built within regulatory guidelines.