Rentec Direct - Online property management software for landlords and property managers.
SafeGraph - SafeGraph's Points-of-Interest (POI) data, geofences, business listings, & foot-traffic data empowers firms to do better geolocation, marketing attribution, retail analytics, & location intelligence.
Cozy.co - Modern property management for landlords, property managers, and renters.
ipstack - ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
Anabode - Anabode is a smart property management platform for landlords & property managers of all sizes. Manage, Repair & Keep Track of your properties, anywhere in the world. Get started for free. No credit card required.
GeoNode.org - Open Source Geospatial Content Management System