Protomaps

Free open source customisable map of the world, deployable as a single static file. Allows anyone to easily self-host vector map tiles of the entire planet.

Fediverse address:
@protomaps@mapstodon.space

GIS OpenCourseWare

Platform hosting creative commons courses on using GIS software. Courses are available to anyone who wants to use them, without any kind of registration.

Fediverse address:
@gisocw@fosstodon.org

Stadia Maps

Company providing map tiles and geospatial APIs to other companies, organisations and individuals. Also contributes to FOSS mapping projects and initiatives.

Fediverse address:
@stadiamaps@en.osm.town

Swiss OpenStreetMap

Association of OpenStreetMap volunteer contributors in Switzerland.

Fediverse address:
@SwissOSM@en.osm.town

GRASS GIS

Free open source computational engine for raster, vector and geospatial processing.

Fediverse address:
@grassgis@fosstodon.org

Harvey J. Miller

Bob and Mary Reusche Chair in GIS, Professor of Geography and Director, Center for Urban and Regional Analysis (CURA) at Ohio State University USA.

Fediverse address:
@mobileharv@urbanists.social

OpenStreetMap BFC

Volunteers mapping the Bourgogne-Franche-Comté region in France through the free open mapping platform OpenStreetMap.

Fediverse address (in French):
@OSM_BFC@mstdn.social

Cartography and Geographic Information Society (CaGIS)

US-based organisation promoting research, education and use of maps and geographic information systems. Member of the International Cartographic Association.

Fediverse address:
@CaGIS@mapstodon.space

Geomob

Event series and podcast for geospatial enthusiasts. Holds meetings in European cities to discuss geoinnovation.

Fediverse address:
@geomob@mapstodon.space

OpenStreetMap

Official account for the free open map of the world that anyone can edit.

Fediverse address:
@openstreetmap@en.osm.town

GeoPandas

Open source project to help use geospatial data in the Python programming language.

Fediverse address:
@geopandas@fosstodon.org

Open Source Geospatial Foundation / OSGeo

Non-profit based in the US promoting global adoption of open geospatial technology.

Fediverse address:
@osgeo@fosstodon.org

GeoServer

Free open source Java web application to share and edit geospatial data.

Fediverse address:
@geoserver@fosstodon.org

OpenStreetMap Guppe Group

Discussion group about OpenStreetMap for users and editors. (Click here ⧉ for more about how groups work.)

Fediverse address:
@openstreetmap@a.gup.pe

OpenStreetMap Utah

Mapping community group based in Salt Lake City, aiming to maintain and update OSM data for Utah USA.

Fediverse address:
@utah@en.osm.town

OpenCage

Company offering forward and reverse geocoding API based on open data, sponsors and organises Geomob events and the Geomob podcast, member of the OpenStreetMap Foundation.

Fediverse address:
@opencage@en.osm.town

Sourcepole

Swiss company offering geospatial services based on open source software such as QGIS.

Fediverse address:
@sourcepole@fosstodon.org

Lokjo

Non-profit online map service using data from OpenStreetMap, based in the European Union.

Fediverse address:
@lokjo@mapstodon.space

FOSSGIS Verein

Non-profit based in Germany promoting free open source software related to GIS and geodata.

Fediverse address (in German):
@FOSSGISeV@mastodon.online

FOSS4G North America

Annual geospatial technology and business conference.

Fediverse address:
@foss4gna@fosstodon.org

Joseph Elfelt

Developer of GISsurfer web map, FindMeSAR, GeoJPG, curator of 3000+ ArcGIS server list.

Fediverse address:
@mappingsupport@m.ai6yr.org

QGIS

Free open source geographic information system software for Linux, Mac, Windows and Android. Allows viewing, editing, printing and analysis of geospatial data.

Fediverse address:
@qgis@fosstodon.org

OpenStreetMap India

Volunteer community creating a free open source map of India through OSM.

Fediverse address:
@OSMIndia@en.osm.town

Maptime Bogota

OpenStreetMap contributor group based in Bogotá, Colombia.

Fediverse address (in Spanish):
@MaptimeBogota@en.osm.town

Geofabrik

Small company providing services and training for businesses and individuals wishing to create maps or data packages based on OpenStreetMap. The company also contributes to OSM and is a member of the OSM Foundation.

Fediverse address (in German):
@geofabrik@en.osm.town

MapRVA

OpenStreetMap group organising regular meetups in Richmond, Virginia, USA.

Fediverse address:
@maprva@en.osm.town

DoudouOSM

OpenStreetMap contributor and enthusiast, also interested in FOSS, privacy, Wikidata etc.

Fediverse address:
@Doudouosm@en.osm.town

Don Meltz

Land use planner using GIS and spatial analysis, adjunct instructor at Marist College teaching GIS courses. Mapping enthusiast and helping to create ecologically sustainable communities.

Fediverse address:
@GeoDon@mapstodon.space

OpenStreetMap Belgium

News and events for OSM mapping contributors in Belgium.

Fediverse address:
@osm_be@en.osm.town

Conspiracy of Cartographers

Runs a website about maps, mainly featuring the effects of extreme sea level rises.

Fediverse address:
@ConspiracyOfCartographers@mastodon.social

bxl-forever

OpenStreetMap enthusiast based in Brussels, Belgium. Mainly posting in English about OSM and mapping.

Fediverse address:
@bxl_forever@mastodon.multimob.be

OSM Pyrénées-Orientales

Community for mapping the Pyrénées-Orientales department of France on OpenStreetMap.

Fediverse address (in French):
@OpenStreetMap66@en.osm.town

Derek Law

Product manager at Esri, interested in GIS, Health GIS, Maps and Data Visualisation.

Fediverse address:
@GIS_Bandit@mastodon.world

Unmapped Small Town USA

Bot posting US towns with a population under 1000 which need more mapping on OpenStreetMap.

Fediverse address:
@SmallTownUSA@en.osm.town

Dragons8mycat

Chartered Geographer with the Royal Geographical Society / Institute of British Geographers. Interested in Geospatial / GIS topics.

Fediverse address:
@Dragons8mycat@mapstodon.space

State of the Map France

Conference in France for contributors, users and fans of OpenStreetMap.

Fediverse address (in French):
@sotmfr@fr.osm.social

Bundesamt für Kartographie und Geodäsie (BKG) / Federal Agency for Cartography and Geodesy

German federal agency for providing topographic data, cartography and geodetic reference systems.

Fediverse address (in German):
@BKG@social.bund.de

Kai-Christian Bruhn

Computing archaeologist, Professor for Interdisciplinary Applications of Spatial Surveying- and Information-Technology at Mainz University of Applied Sciences in Germany.

Fediverse address:
@kacebe@scholar.social

OSMLondon

News and events for OpenStreetMap contributors in London, UK.

Fediverse address:
@OSMLondon@en.osm.town

pokateo maps

Geographic Information Systems and Geospatial expert, mapping enthusiast, sharer of map-related memes.

Fediverse address:
@pokateo@mapstodon.space

Greg Cocks

Spatial data scientist and researcher, interested in GIS, water, hydrology.

Fediverse address:
@GregCocks@techhub.social

GeoNe.ws

Website highlighting GIS, geospatial and geodata news.

Fediverse address:
@geonews@mastodon.social

Josh Wells

Professor of Anthropology and Social Informatics at Indiana University South Bend. Principal Investigator at Digital Index of North American Archaeology. Interested in GIS/Geospatial, open data, and a more humane and equitable approach to data and systems.

Fediverse address:
@josh@fediscience.org

Geospatial Guppe Group

Discussion group about geospatial and GIS topics. (Click here ⧉ for more info on how to use Fediverse groups.)

Fediverse address:
@geospatial@a.gup.pe

State of the Map

Annual conference of the OpenStreetMap Foundation.

Fediverse address:
@sotm@en.osm.town