For anybody starting a business, here's all of the tools that we use at aragon.ai. (We hit $1M ARR in 4 months, $4M+ ARR in 1+ years):

Admin:
• Clerky - incorporation
• Brex - credit card and banking
• Notion - personal task management, team kanban board, and company documentation
• Google Workspace
• Stripe - payments
• Slack
• Rippling - payroll
• Deel - payroll
• Superhuman - email client
• Accountalent - all accounting stuff, best value
• Paddle - makes tax filing easy, esp. globally (once you have $XM+ ARR)
• Wilson Sonsini Goodrich & Rosati and Victor Huang - legal

Product:
• OpenAI/ChatGPT
• Cursor - coding agent
• Heroku (may move off)
• AWS
• Intercom (we used Crisp initially)
• NUMI (YC W20) - design agency, best so far
• Flexiple - recruiting agency

Marketing:
• Google Analytics
• Mixpanel - product analytics (e.g. A/B testing conversion)
• SendGrid - email service provider (may move off)
• Google Keyword Planner - SEO research
• SEMrush - SEO research
• Ahrefs - SEO research
• Similarweb - general research
• Rewardful - affiliate management
• Buffer - scheduling social media posts
• Validated - runs ads
• Aragon - image/photo editing and generation

Exceptional Startups Are Needles in a Haystack. So the Best VCs Build Needle Magnets.