• Founded Space Exploration Technologies Corp. (SpaceX) in 2002 with the goal of reducing space travel costs and enabling human life on Mars. • Key Achievements: • Falcon 1 (2008) – First privately developed liquid-fueled rocket to reach orbit. • Falcon 9 (2010) – First privately developed reusable rocket. • Dragon Capsule (2012) – First commercial spacecraft to dock with the ISS. • Falcon Heavy (2018) – World’s most powerful operational rocket. • Crew Dragon (2020) – First private company to send humans to space. • Starship – Fully reusable next-gen rocket for Mars missions (in testing phase). • Starlink – Global satellite internet service with 5,000+ satellites in orbit.

• Joined Tesla in 2004 as an investor and became CEO in 2008. • Key Achievements: • Electric Vehicles (EVs): Model S, 3, X, Y, Cybertruck, Semi, Roadster. • Autonomous Driving: Development of Full Self-Driving (FSD) AI. • Energy & Sustainability: Tesla Solar Roof, Powerwall, Megapack for energy storage. • Giga Factories: Established factories worldwide (U.S., China, Germany). • Market Leadership: Tesla became the most valuable car company (2020).

• Acquired Twitter for $44 billion in October 2022. • Key Actions: • Rebranded Twitter to "X", aiming to create an "everything app". • Focused on free speech, AI, and financial transactions integration. • Launched X Premium (paid verification system).

• Helped establish OpenAI to develop safe artificial intelligence. • Advocated for AI safety and ethical AI development. • Left in 2018 over disagreements on OpenAI’s for-profit direction.

• Developing brain-computer interfaces (BCI) to connect human brains with AI. • Goal: Cure neurological disorders (e.g., paralysis, blindness). • Successfully implanted first brain chip in humans (2024).

• Focuses on tunnel construction to alleviate urban traffic congestion. • Created Hyperloop concept – ultra-fast transportation in vacuum tubes. • Built Las Vegas Loop (first operational underground transit system).

• First major startup – a city guide and business directory for newspapers. • Sold to Compaq for $307 million in 1999.

• Founded X.com, an online banking & payment service. • Rebranded as PayPal and became dominant in digital payments. • Acquired by eBay for $1.5 billion (Musk made $180 million).