15 Subreddits Every Founder Should Know

Reddit has quietly become one of the most powerful platforms for founders to learn, connect, and grow their businesses. With over 1.2 billion monthly active users and content that ranks prominently in Google search results, these communities offer unfiltered insights, peer-to-peer advice, and real-world feedback that you won't find elsewhere.

Whether you're validating your first idea or scaling to seven figures, these 15 subreddits provide invaluable resources for every stage of your entrepreneurial journey.

The Heavy Hitters: Core Entrepreneurship Communities

1. r/Entrepreneur (4.8M members)

Why it matters: The granddaddy of all entrepreneurship subreddits, offering discussions on everything from finding investors to sales strategies and leadership insights.

What you'll find: Daily threads covering funding, marketing tactics, success stories, and failure lessons. The community values transparency and detailed posts—bring receipts when asking for advice.

Best for: General entrepreneurship advice, networking, and staying current with business trends across all industries.

2. r/startups (1.8M members)

Why it matters: Where builders go deep on the technical and strategic aspects of startup life.

What you'll find: Early-stage founders discussing validation, funding, go-to-market strategy, hiring, and product-market fit. Expect gritty progress updates, pitch breakdowns, and pivot case studies.

Best for: Founders working on SaaS, marketplaces, or tech-enabled services who need investor-ready feedback and tactical startup advice.

3. r/business (2.5M members)

Why it matters: A broader business community that covers established companies alongside startups.

What you'll find: Industry analysis, market trends, business news, and strategic discussions that go beyond startup-specific challenges.

Best for: Understanding larger market forces, competitive landscapes, and scaling strategies for more mature companies.

4. r/smallbusiness (2.2M members)

Why it matters: Focused on practical, boots-on-the-ground advice for running smaller operations.

What you'll find: Local business strategies, service-based business advice, traditional business models, and operational challenges.

Best for: Service providers, local businesses, and founders building more traditional (non-tech) companies.

The Specialty Communities: Niche Expertise

5. r/SaaS (341K members)

Why it matters: The dedicated home for Software as a Service discussions with 530% growth since 2018.

What you'll find: SaaS-specific metrics, customer acquisition strategies, pricing models, churn reduction, and technical discussions about building scalable software businesses.

Best for: SaaS founders at any stage looking for community feedback, growth tactics, and industry-specific insights.

6. r/MicroSaas (80K members)

Why it matters: A smaller, highly focused community for single-founder or small-team SaaS projects.

What you'll find: Honest feedback on early-stage products, revenue sharing, bootstrap strategies, and niche market discussions. The smaller size means more personal attention.

Best for: Solo founders and small teams building targeted SaaS solutions without external funding.

7. r/indiehackers (91K members)

Why it matters: The Reddit arm of the famous Indie Hackers community focused on profitable, bootstrapped businesses.

What you'll find: Revenue transparency, build-in-public updates, marketing experiments, and strategies for growing without venture capital.

Best for: Independent entrepreneurs building profitable businesses on their own terms.

The Project-Focused Communities

8. r/SideProject (430K members)

Why it matters: A thriving community for sharing and getting feedback on early-stage projects and MVPs.

What you'll find: "I built this" posts, early-stage feedback requests, launch announcements, and constructive criticism from fellow builders.

Best for: Validating ideas, getting initial user feedback, and connecting with potential early adopters before full launch.

9. r/thesidehustle (184K members)

Why it matters: Focused on building income streams alongside full-time work.

What you'll find: Part-time business ideas, time management strategies, and advice for founders who are building while employed elsewhere.

Best for: Aspiring entrepreneurs testing ideas while maintaining stable income, or those looking to diversify revenue streams.

10. r/Business_Ideas (359K members)

Why it matters: A creative community for brainstorming and validating business concepts.

What you'll find: Market gap discussions, opportunity identification, trend analysis, and collaborative ideation sessions.

Best for: Early-stage entrepreneurs seeking inspiration, validation, or partnership opportunities for new concepts.

The Growth-Focused Communities

11. r/GrowthHacking (77K members)

Why it matters: Dedicated to growth marketing strategies and scaling techniques pioneered by Sean Ellis.

What you'll find: Case studies, growth experiments, viral marketing tactics, and data-driven growth strategies with real examples and metrics.

Best for: Founders focused on rapid, sustainable growth through innovative marketing and product development techniques.

12. r/growmybusiness (63K members)

Why it matters: Specifically focused on scaling strategies for existing businesses.

What you'll find: Scaling challenges, operational improvements, team building advice, and growth strategy discussions.

Best for: Founders past the initial launch phase who are focused on sustainable growth and operational excellence.

The Elite Networks

13. r/ycombinator (132K members)

Why it matters: Discussions around the world's most famous startup accelerator and its ecosystem.

What you'll find: YC application advice, demo day insights, portfolio company updates, and high-level startup strategy discussions.

Best for: Ambitious founders targeting accelerator programs or seeking connections within the YC network.

14. r/EntrepreneurRideAlong (593K members)

Why it matters: A community focused on sharing detailed entrepreneurial journeys and transparent business building.

What you'll find: Long-form case studies, month-by-month business updates, and detailed documentation of the entrepreneurial process.

Best for: Founders who want to document their journey or learn from others' detailed experiences.

The Emerging Communities

15. r/vibecoding (35K members)

Why it matters: A newer community combining coding culture with entrepreneurial mindset.

What you'll find: Technical discussions mixed with business strategy, particularly focused on developers building their own products.

Best for: Technical founders who want to connect with other developer-entrepreneurs in a more casual, culture-focused environment.

How to Get Maximum Value from These Communities

Do Your Homework: Each subreddit has specific rules and cultural norms. Read the guidelines and observe before posting.

Lead with Value: Share insights, answer questions, and contribute meaningfully before promoting your own projects.

Be Authentic: Reddit rewards genuine engagement and punishes obvious self-promotion. Build relationships, don't just broadcast.

Use Strategic Timing: Monitor when communities are most active and engage consistently rather than sporadically.

Focus on Comments: Often more valuable than posts—jump into discussions early with thoughtful contributions.

The Bottom Line

These 15 subreddits represent over 15 million entrepreneurs, founders, and business builders sharing real experiences, unfiltered advice, and proven strategies. Unlike other platforms where content disappears quickly, Reddit discussions remain searchable and valuable for years.

Whether you're validating your first idea, seeking technical feedback, or scaling to your next revenue milestone, these communities offer the peer insights and expert knowledge that can accelerate your entrepreneurial journey.

Start with 2-3 communities that match your current stage, engage authentically, and watch how these relationships transform both your business and your approach to building it.