Metalsmith - An extremely simple, pluggable static site generator.
e-Builder - e-Builder is a construction program management solution that manages capital program cost, schedule, and documents.
Nikola - Nikola is s static site generator tool written in Python.
RedTeam - RedTeam is a construction project management software specially designed for midsize commercial construction companies.
Assemble - The static site generator for Node.js, Grunt.js and Yeoman
PlanSwift - PlanSwift allows contractors to create accurate project estimates specific to their individual trade.