Startup Reddit communities

6 hand-checked Startup Reddit communities for early-stage founders looking for accountability, fundraising context and honest feedback. Each listing shows member numbers as the community states them, how active it is, what it costs and how to get in.

r/SideProjectReddit · r/SideProject~778K membersClaim this spot · $67/mo

r/buildinpublicReddit · r/buildinpublic~104K membersClaim this spot · $67/mo

r/ycombinatorReddit · r/ycombinatorClaim this spot · $67/mo

r/indiehackersReddit · r/indiehackersClaim this spot · $67/mo

r/EntrepreneurReddit · r/EntrepreneurClaim this spot · $67/mo

r/startupsReddit · r/startupsClaim this spot · $67/mo

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AI & ML Reddit communities 13

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Common questions

How many Startup Reddit communities are listed here?

6 right now. Every listing is checked by hand before it goes live, and member numbers are shown exactly as the community states them rather than rounded up.

Are Startup Reddit communities free to join?

Every one listed here is free to join, though some ask you to register or answer a short question first.

Which Startup Reddit communities are the biggest?

By stated member count: r/SideProject (~778K members), r/buildinpublic (~104K members). Size is worth weighing against how active a community actually is, which each listing shows separately.