GIS & Geospatial Services: Analysis, Surveys, and WebGIS
PT Geo Anfa Spasial (GeoGap) is a legally registered geospatial consultancy based in Semarang City, Central Java. We deliver geospatial work end to end: spatial analysis, data processing and digitising, satellite imagery processing, surveying and mapping with field partners, through to WebGIS, OGC geoportals, and 3D Digital Twin Cities.
You can hand over a single job — one analysis or one map set — make us the GIS team behind your project, or entrust a complete project from field survey to a ready-to-use system. All data, methods, and source code we produce remain yours.
Each page below explains the scope, method, deliverables, and the most frequently asked questions.
Custom 2D & 3D WebGIS Development
We build custom, standalone, and responsive web mapping platforms (WebGIS) focused on real functionality without overloading your server architecture.
Case studies: 3 Learn more →Spatial & GIS Analysis Services for Studies and Decisions
Send us your question and your data — we run the analysis, from land suitability and disaster risk to site selection, delivered with thematic maps, tables, and a defensible method write-up.
Learn more →Spatial Data Processing, Digitising & Integration Services
From paper maps, CAD drawings, and spreadsheets to scattered survey data — we turn it into clean, consistent GIS data ready for analysis, printing, or display in a WebGIS.
Case studies: 3 Learn more →Satellite Imagery Processing & Remote Sensing Services
Monitor large areas without visiting every corner: land cover, year-to-year change, vegetation condition, and flood extent — processed from satellite imagery with clear accuracy assessment.
Learn more →Surveying & Mapping Services: Terrestrial, Drone Aerial Photography, and LiDAR
Need field data and its processing in one go? We coordinate surveys with our field partners, then process the data ourselves into maps, 3D models, analysis, or a WebGIS — you deal with a single point of contact.
Learn more →GIS Support & Outsourcing for Your Geospatial Projects
For consultants, contractors, agencies, and companies running a project: we become the geospatial team behind you — handling data processing, analysis, maps, WebGIS, geoportals, and digital twins on your project timeline.
Case studies: 3 Learn more →OGC-Standard Geoportal Services (GeoServer WMS/WFS)
Manage and publish large-scale spatial data through interoperable, OGC-standard geoportals (WMS/WFS/WMTS) ready to connect with other systems.
Case studies: 3 Learn more →Digital Twin City 3D Services in Indonesia
Build an accurate 3D digital twin of your city or area — combining city models, photogrammetry, and point clouds in a single web platform.
Case studies: 3 Learn more →
