// best subreddits
Best subreddits for startups
15 communities where startups talk, ranked by size. Each one links to its rules, top posters, and the best time to post.
Built from public Reddit data, activity measured 2026-08-22 to 2026-09-19. Subreddits were sorted into industries by their own descriptions.
| # | Subreddit | Members | Posts / day |
|---|---|---|---|
| 1 | r/Entrepreneur Our community brings together individuals driven by a shared commitment to problem-solving, professional networking, an… | 4.5M | — |
| 2 | r/startups Welcome to /r/startups, the place to discuss startup problems and solutions. Startups are companies that are designed t… | 1.8M | 41.4 |
| 3 | r/EntrepreneurRideAlong This community was started by Rohan (localcasestudy) so people can follow along as he launched and built a business in… | 553K | 86.1 |
| 4 | r/Business_Ideas Share and explore innovative business ideas, gain insights on initiating your venture, unravel the intricacies of 'Cost… | 316K | 26.0 |
| 5 | r/SideProject r/SideProject is a subreddit for sharing and receiving constructive feedback on side projects. | 289K | 960 |
| 6 | r/startup Reddit's space to learn the tools and skills necessary to build a successful startup. A community meant to support each… | 183K | 56.5 |
| 7 | r/sweatystartup A hub for entrepreneurs of regular old fashioned businesses. | 160K | 3.9 |
| 8 | r/Startup_Ideas This subreddit is for sharing innovative startup ideas. Links and discussion about startups and descriptions of startup… | 118K | 77.4 |
| 9 | r/ycombinator News and discussion around Y Combinator and Y Combinator companies. In 2005, Y Combinator created a new model for fundi… | 104K | 13.6 |
| 10 | r/Entrepreneurship A community dedicated to entrepreneurship questions and advice. | 78.4K | 12.3 |
| 11 | r/venturecapital Venture capital news and articles, for the VC industry, and related early-stage investors. | 57.3K | 5.4 |
| 12 | r/growmybusiness Welcome to r/growmybusiness. This is the place to find and share creative advice to optimize your business growth. | 55.8K | 23.1 |
| 13 | r/advancedentrepreneur A community for established entrepreneurs to share tips, tricks, and fundamentals on growing your business to the next… | 54.8K | 13.9 |
| 14 | r/indiehackers IndieHackers is a subreddit focused on people who bootstrap their way to success by building products. | 50.9K | 106 |
| 15 | r/cofounder If you do not have a project with a business plan already, do not post here. This community is for people with both to… | 50.3K | 3.8 |
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