Clever°Maps’ is a three years old startup based in the Czech Republic. We create web apps for four distinct market segments:
All our activities take advantage of PostgreSQL as a great DBMS and PostGIS as a tool to query data our apps need. These days we keep a complete monthly updated copy of the whole Czech cadastre together with LPIS (Land Parcel Identification System), that is more than 650 GB of data. We use PostGIS for much more than simple queries (although talking millions of parcel lots it is hard to tell them simple anymore):
Recently our BI team pushed the limits of PostgreSQL/PostGIS trying to use it on ~180M rows of spatial data. They eventually ended up using Amazon Redshift, but the whole geoprocessing is still done in PostGIS beforehand.
As a software engineer at the Howard Hughes Medical Institute, I work on a collaborative neuron reconstruction and analysis software called CATMAID 1 (screenshot: 3), which is used for neuroscience research. We use PostGIS to represent neurons in a 3D space.
Vanguard Appraisals is new to the GIS world. In fact, we aren’t really in the GIS world; we just kind of brush up against it. We do mass property appraisal for entire county and city jurisdictions, and we develop software to collect, price and maintain values. We also host assessment data online so that homeowners can search and find property information much simpler from the comfort of their own home. Our software and websites are used in 7 states (IA, IL, MN, MO, NE, ND, SD).
Nautilytics is a small data visualization and GIS startup based out of Boston, MA. We use PostGIS and PostgreSQL, among other open-source tools to build powerful web applications for US government organizations, public, and private sector companies.