LinkedIn hosts 2M+ groups. This graph maps the top ~200 by membership across 15 professional verticals.
Groups selected by membership size (floor ~30K members) with representation guaranteed across all major LinkedIn industry categories. Tech/AI overrepresented in raw data; normalized here to reflect LinkedIn's actual professional distribution.
LinkedIn groups above 30K members represent active professional communities with sustained engagement. Below this threshold, groups tend toward dormancy or spam.
Node size = member count (log scale). Color = professional vertical. Edges = shared topic tags (2+ shared tags required). Hover for details. The clusters that form reveal which professional communities share common interests — and where cross-industry opportunities exist.
Technology and Data form a dense supercluster. Marketing bridges tech and business. Healthcare and Legal are isolated islands — underleveraged for AI. The gaps between clusters are where Graphify.md operates.
DanD.ai LinkedIn Groups Directory, DataThick.com, industry-specific group directories, manual verification. Data current as of March 2026.