ipstack - ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.
Mapbox - An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.
Clearip - Clearip provides the IP intelligence and fraud detection API in the market.
QGIS - QGIS is a desktop geographic information system, or GIS.
Near - Near is a Location-aware Data Platform that helps you Unify & Enrich your data, Take action and Measure Results.
ArcGIS - ArcGIS software is a data analysis, cloud-based mapping platform that allows users to customize maps and see real-time data ranging from logistics support to overall mapping analysis.