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For SaaS startups, the top cloud providers are: AWS (Amazon Web Services) The market leader with the most comprehensive service offering. Best for startups that need extensive services, global reach, and a mature ecosystem. Strong startup support through AWS Activate program (credits and resources). Can be complex and potentially expensive without optimization. Google Cloud Platform (GCP) Excellent for data analytics, machine learning, and Kubernetes-based workloads. Competitive pricing and strong integration with Google services. Good startup programs with credits. Particularly attractive if you're building AI/ML-heavy products. Microsoft Azure Ideal if you're building B2B SaaS targeting enterprise customers who already use Microsoft products. Strong integration with Microsoft ecosystem. Good for .NET applications. Generous startup programs through Microsoft for Startups. For early-stage startups, also consider: Vercel/Netlify - Perfect for frontend/JAMstack applications with serverless backends. Extremely simple deployment and scaling. Railway/Render - Modern, developer-friendly platforms with simple pricing and good DX. Great for getting MVPs up quickly without infrastructure complexity. DigitalOcean - Simpler than AWS/GCP/Azure with transparent pricing. Good for straightforward applications that don't need extensive managed services. Key factors to consider: Your technical expertise and team size Specific services you need (databases, ML, containers, etc.) Budget and pricing predictability Compliance requirements Integration with your existing tools Most successful SaaS startups start with one of the big three (AWS/GCP/Azure) for their flexibility and scalability, but simpler platforms can be perfect for validating your product quickly.