Data sources and licences
The sources Topognosia's figures come from and the licences under which they are used.
Last updated
Licence for Topognosia's figures: CC BY 4.0
Topognosia's aggregate figures are available under the Creative Commons Attribution 4.0 licence (CC BY 4.0): https://creativecommons.org/licenses/by/4.0/. The licence covers business counts by municipality and sector, openings and closures, and the indices. Republishing is allowed, commercial use included, provided the source is credited as “Topognosia (topognosia.gr)”. Business lists and maps are governed by the licences of their own sources, listed below.
Data sources
Topognosia's figures are built on the open sources below.
- Business data: GEMI — Open Data Service (opendata.businessportal.gr), ODC-BY 1.0 licence
- © OpenStreetMap contributors — data under the ODbL licence
- Demographics and settlements: ELSTAT, 2021 Census. ELSTAT bears no responsibility for the result.
- Urbanisation, built-up area and residents around a point: GHSL, EU Joint Research Centre (CC BY 4.0)
- Municipal websites and Wikipedia articles: Wikidata (CC0)
- ESPA 2014–2020 projects: anaptyxi.gov.gr, Ministry of Development (open data, Law 4305/2014)
- Projects of the current ESPA: Kohesio, European Commission (CC BY 4.0)
- Public contracts: KIMDIS, Ministry of Development (CC BY 4.0)
- Deed prices: Ministry of National Economy and Finance, Register of Property Transfer Values (CC BY 4.0)
- Burnt areas: EFFIS, Copernicus / EU Joint Research Centre (CC BY 4.0)
- Natura 2000 sites: Hellenic Cadastre, data.gov.gr
- Athens municipal communities: City of Athens (geoportal)
- Geospatial: geodata.gov.gr (CC-BY 3.0)
- Municipal boundaries (Kleisthenis): Ioannis Andreadis, Aristotle University of Thessaloniki — HEAL-Link Open Data, CC BY 4.0 licence, doi:10.26255/heal.5fh6-7qxu
- Street data from declarations: Hellenic Cadastre — data.gov.gr, public open data (Law 4727/2020)
- Objective values: Ministry of National Economy and Finance — APAA zones, data.gov.gr, CC BY 4.0 licence
- Seismic hazard: Danciu L. et al. (2021), The 2020 update of the European Seismic Hazard Model (ESHM20), EFEHR, https://doi.org/10.12686/a15, CC BY 4.0 licence
- Active faults: Ganas A. (2025), NOAFaults v7.0, National Observatory of Athens, https://doi.org/10.5281/zenodo.16728922, CC BY 4.0 licence
- Earthquakes: U.S. Geological Survey, Earthquake Hazards Program, ComCat catalogue, public domain