Procore - Procore is the world's most widely used construction project management software. Easy to use, mobile platform with unlimited user licenses.
MySQL - The world's most popular open source database
Corecon - Corecon offers integrated estimating, project management, and job costing for small to medium-sized construction companies.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Touchplan - Touchplan is a construction operations management software that helps builders of all sizes to manage their sites more efficiently.
SQLite - SQLite Home Page