MySQL - The world's most popular open source database
Procore - Procore is the world's most widely used construction project management software. Easy to use, mobile platform with unlimited user licenses.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Bluebeam Revu - The end-to-end digital workflow and collaboration solution trusted by over 1 million AEC professionals worldwide. Revu delivers award-winning PDF creation, editing, markup and collaboration technology designed for AEC workflows.
SQLite - SQLite Home Page
Fieldwire - The construction app for project and task management in the field.