I'm obviously biased, but yes, https://openvc.app is what you're looking for. Source: about 2 years ago

Lmk if I can help with data/insights! (I run openvc.app). Source: over 2 years ago

I'm the co-founder of openvc.app, a radically free and open platform that lets founders search 4,000+ VC firms by investment thesis. Source: over 2 years ago

Openvc.app is something I saw posted yesterday. Source: almost 3 years ago

I think we have 20x larger and more comprehensive database than openvc.app. Not trying to say bad things about openvc.app as I know the founder of it. Source: almost 3 years ago

I haven't tried but I bet you could also import it into a uMap. Source: about 1 year ago

If you prefer not to use proprietary, walled-off services like Strava I recommend Umap which has some great map editing Functionality and allows sharing links or even exporting the maps as JSON. Source: over 1 year ago

I'm not hosting it myself but I'm using the open-source OSM uMap (https://umap.openstreetmap.fr/en/) with a custom layer that points to a GeoJSON endpoint on my webserver. Source: over 1 year ago

That being said, http://umap.openstreetmap.fr/en/ exists. This is a website where one can make a small map, personal or shared with friends who can edit. Source: over 1 year ago

Open Street Map iframe of a custom map (https://umap.openstreetmap.fr/en/) with an external layer that points to an endpoint on my server. The server takes my database of points/labels/etc and serves it in GeoJSON format for OSM to understand and render. Source: over 1 year ago