Procore - Procore is the world's most widely used construction project management software. Easy to use, mobile platform with unlimited user licenses.
Calendify - Calendify is an event community where you can share, publish, and subscribe to event calendars. It helps you to stay informed about what you are interested in and what is yet to come.
Corecon - Corecon offers integrated estimating, project management, and job costing for small to medium-sized construction companies.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
SummitVista.io - Summit Vista end to end short and long term property management
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.