25 open-source GIS & Geospatial vendors
Open-source software for GIS & Geospatial that you can self-host, with auditable source code — regardless of the developer's headquarters.
- vendors scored
- 25
- European
- 19
- last checked
- 11 October 2026
Vendors, scored
Score per vendor: 0 = high exposure, 100 = sovereign
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- Sovereignty score 94 out of 10052°NorthGermany · Self-hosted / open sourceGerman research institute that develops open-source geospatial software
- Sovereignty score 94 out of 100CamptocampSwitzerland · Self-hosted / open sourceSwiss company specialised in open-source GIS and geospatial web applications
- Sovereignty score 94 out of 100ESA SNAPFrance · Self-hosted / open sourceOpen-source Earth observation toolbox from the European Space Agency (ESA, Paris) for processing satellite data, including Sentinel imagery.
- Sovereignty score 94 out of 100GeomatysFrance · EU sovereignFrench geospatial software company (Arles), principal author of the open-source Apache SIS library and publisher of Examind.
- Sovereignty score 94 out of 100GeoServerItaly · Self-hosted / open sourceOpen-source server for sharing geospatial data via OGC standards such as WMS and WFS
- Sovereignty score 94 out of 100GeoSolutionsItaly · Self-hosted / open sourceItalian company (Camaiore) supplying and supporting open-source geospatial software: GeoServer, MapStore, GeoNetwork and GeoNode.
- Sovereignty score 94 out of 100GRASS GISItaly · Self-hosted / open sourceOpen-source GIS for advanced raster, vector and spatial analyses
- Sovereignty score 94 out of 100gvSIGSpain · Self-hosted / open sourceOpen-source desktop and web GIS suite from Spain (Generalitat Valenciana and the gvSIG Association), with gvSIG Desktop, gvSIG Online and gvSIG Mapps.
- Sovereignty score 94 out of 100lat/lonGermany · Self-hosted / open sourceGerman company that develops the deegree open-source web services for INSPIRE directives
- Sovereignty score 94 out of 100LizmapFrance · Self-hosted / open sourceOpen-source web client from French publisher 3Liz (Montpellier) that publishes QGIS projects as web maps; also offered as a hosted service in France.
- Sovereignty score 94 out of 100OPENGIS.chSwitzerland · Self-hosted / open sourceSwiss open-source GIS specialist (Laax, with offices across Switzerland) developing QField and QFieldCloud for mobile field-data collection, alongside QGIS core development, custom development, training and support. Actively hiring and publishing in 2026, confirming ongoing operations.
- Sovereignty score 94 out of 100OpenLayersGermany · Self-hosted / open sourceOpen-source JavaScript library for interactive maps in the web browser
- Sovereignty score 94 out of 100Orfeo ToolBoxFrance · Self-hosted / open sourceOpen-source remote sensing toolbox developed with the French space agency CNES (Paris) for processing optical, multispectral and radar images, usable from Python, QGIS and C++.
- Sovereignty score 94 out of 100OslandiaFrance · Self-hosted / open sourceFrench SME (Paris/Lyon, founded 2009) specializing in open-source geospatial infrastructure: core contributor to QGIS, QGIS Server, PostGIS and 3D geospatial tools (SFCGAL, point-cloud visualization). OSGeo member providing consulting, development and support services on open-source GIS stacks.
- Sovereignty score 94 out of 100QGISSwitzerland · Self-hosted / open sourcePowerful open-source GIS for editing, analysing and publishing spatial data
- Sovereignty score 94 out of 100rasdamanGermany · Self-hosted / open sourceGerman array database and analytics engine from Bremen for geospatial datacubes, with a Community Edition under the GPL and LGPL licences.
- Sovereignty score 94 out of 100SAGA GISGermany · Self-hosted / open sourceOpen-source GIS developed at the University of Hamburg for analysing vector, raster and terrain data, with modules for geostatistics and image analysis.
- Sovereignty score 94 out of 100terrestrisGermany · Self-hosted / open sourceGerman GIS company specialised in open-source geospatial solutions
- Sovereignty score 94 out of 100WhereGroupGermany · Self-hosted / open sourceGerman company behind Mapbender, specialised in spatial data infrastructure
- Sovereignty score 79 out of 100LeafletUkraine · Self-hosted / open sourceLightweight open-source JavaScript library for mobile-friendly interactive maps
- Sovereignty score 79 out of 100Lutra ConsultingUnited Kingdom · Self-hosted / open sourceUK-based QGIS specialist (registered office in Ashford, Kent, with an additional office in Slovakia) providing QGIS core development, consulting, training and support, plus the open-source Mergin Maps field-data platform (AGPL-3 and commercial licence) built on QGIS.
- Sovereignty score 79 out of 100PostGISCanada · Self-hosted / open sourceSpatial extension for PostgreSQL for storing and processing geographic data
- Sovereignty score 71 out of 100GeoNodeUnited States · Self-hosted / open sourceOpen-source platform for managing and publishing geospatial data and maps
- Sovereignty score 71 out of 100MapServerUnited States · Self-hosted / open sourceOpen-source map server for publishing spatial data as map images
- Sovereignty score 69 out of 100kepler.glUnited States · Self-hosted / open sourceOpen source (MIT) browser-based tool for visually exploring large geolocation datasets. Originated at Uber; now hosted by the OpenJS Foundation (US).
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