Elon Musk has officially confirmed that he is taking over the popular social media platform Twitter in a $44 billion deal. This billionaire is a famous entrepreneur and founder of many revolutionary companies. Elon Musk is known for his work in the fields of electric cars and space science.

 
If you're curious about how many firms Elon Musk owns, here's the list:

1. SpaceX
SpaceX manufactures some of the world's most advanced rockets and spacecraft. This company was founded in 2002 by Elon Musk to revolutionise space transportation and make life multi-planetary. SpaceX has gained attention for a series of historic milestones. 

2. OpenAI
Open AI is a non-profit artificial intelligence  company that aims to develop general-purpose artificial intelligence tools that can benefit humanity. This firm concentrates more on research and development.

3. Twitter
Twitter is the new possession bought by Elon Musk. According to his latest tweets, Musk aims to make Twitter a free speech and expression platform.

4. Tesla
Tesla is the world's most valuable automotive company, with a market capita of more than $1 trillion. This is based on clean energy and manufactures electric vehicles such as cars and trucks.

5. Neuralink
Neuralink is based on neurotechnology and works on the process of developing implantable Brain Machine Interfaces (BMIs). Elon Musk is the Co-founder of this SanFrancisco based company.

6. The Boring
The Boring is an infrastructure and tunnel construction services company. This company aims to increase tunnelling speed and drop costs.

7. Solar City
Solar City develops, manufactures, sells, and installs photo-voltaic solar energy generation machines. It is the clean energy subsidiary of Tesla, with its headquartered in Fremont, California.

8. Paypal
Paypal is a global financial technology firm that operates online payment systems in most countries that allow online money transfers. It acts as an electronic alternative to traditional paper methods such as checks and money orders.