Leo Hsu and Regina Obe
Regina Obe and Leo Hsu are a co-founders of Paragon Corporation, a database and web application consulting company based in Boston. They have over 15 years of experience with PostGIS and PostgreSQL.
They are co-authors of PostGIS in Action (1st and 2nd editions) (publisher Manning) , PostgreSQL: Up Running (1st, 2nd, and 3rd editions) (publisher O'Reilly), and "pgRouting a Practical Guide", (publisher LocatePress) .
Regina is also a member of PostGIS Steering Committee and development team and pgRouting development team and manages windows PostGIS Bundle builds which includes extensions for (PostGIS (including sfcgal), pgRouting, ogr_fdw, and pointcloud). She also manages the PostGIS jenkins build bots.