Payable - Easily manage and pay your contractors
Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Kanda - Affirm for general contractors
Anchor CMS - Free and lightweight blogging system
ContractorPlus - Everything home service contractors need in one app.
Textpattern - Textpattern is an elegant content management system that is free, open source software.