Marc Andreessen

Co-founder and General Partner at Andreessen Horowitz

As of my last update in September 2021, Marc Andreessen is a prominent figure in the technology and venture capital world. He is best known as the co-founder and general partner of Andreessen Horowitz, a renowned venture capital firm based in Silicon Valley, California.

Born on July 9, 1971, in Cedar Falls, Iowa, Marc Andreessen gained significant recognition for his early contributions to the development of the World Wide Web. In 1993, along with Eric Bina, he co-authored Mosaic, one of the first widely-used web browsers. This pioneering work played a crucial role in popularizing the internet and facilitating the growth of the modern web.

In 1994, Andreessen co-founded Netscape Communications Corporation, a company that further accelerated the internet's widespread adoption through its innovative Netscape Navigator browser. The company's initial public offering (IPO) in 1995 was a landmark event during the dot-com bubble and brought Andreessen considerable fame and wealth.

Following Netscape's acquisition by AOL in 1999, Andreessen delved into entrepreneurship and invested in several startups. In 2009, he co-founded Andreessen Horowitz (also known as a16z), a venture capital firm focused on early-stage technology investments. The firm quickly gained prominence for its investments in high-growth startups and has been a key player in supporting numerous successful companies across various industries.

As a general partner at Andreessen Horowitz, Marc Andreessen actively involves himself in the firm's investments and provides valuable insights to entrepreneurs. He is renowned for his deep understanding of technology trends and is considered an influential thought leader in the tech community. His writings and opinions on technology, startups, and the future of the industry are widely followed and respected.

Throughout his career, Marc Andreessen has been associated with various boards and organizations, further contributing to the technology and business ecosystem. His entrepreneurial journey and contributions to the tech world have left a lasting impact on the development of the internet and the growth of the startup ecosystem.


Ben Horowitz is a prominent entrepreneur, investor, and co-founder of the venture capital firm Andreessen Horowitz, alongside his business partner Marc Andreessen. Born on June 13, 1966, in London, England, Ben Horowitz grew up in Berkeley, California, where he developed a passion for technology and entrepreneurship from an early age.

Education and Early Career: Horowitz attended Columbia University, where he earned a Bachelor of Science degree in Computer Science. He furthered his education at the University of California, Los Angeles (UCLA), where he obtained a Master's degree in Computer Science.

After completing his education, Horowitz embarked on a successful career in the technology industry. In 1995, he co-founded Loudcloud, an enterprise software company that offered cloud computing services to businesses. The company quickly gained traction and went public in 2001 during the dot-com bubble. Later, the company transformed into Opsware, focusing on data center automation software.

Opsware's Acquisition by HP: Under Horowitz's leadership as CEO, Opsware experienced significant growth, and in 2007, Hewlett-Packard (HP) acquired the company for approximately $1.6 billion. Following the acquisition, Horowitz joined HP as Vice President and General Manager of Business Technology Optimization (BTO). His experience with Loudcloud and Opsware provided him with valuable insights into running a technology company and navigating the challenges of entrepreneurship.

Venture Capital and Andreessen Horowitz: In 2005, even before the creation of Andreessen Horowitz, Ben Horowitz, along with his co-founder Marc Andreessen, began making angel investments in various startup companies. They invested around $80 million in over 40 startups, including notable names like Twitter and Qik. Their success as angel investors earned them the reputation of being influential figures in Silicon Valley, often referred to as "Kingmakers."

In 2009, Horowitz and Andreessen officially joined forces to establish Andreessen Horowitz, a venture capital firm based in Menlo Park, California. The firm's mission was to support and invest in early-stage technology startups, providing not only capital but also mentorship and operational guidance to help entrepreneurs succeed.

The firm started with an initial fund of $300 million, and within just three years, it grew to manage $2.7 billion across three funds. Andreessen Horowitz's portfolio includes several high-profile investments in companies like Facebook, GitHub, Foursquare, Pinterest, Twitter, and Honor, solidifying its reputation as one of the leading venture capital firms in the tech industry.

Role as Capital Investor and Industry Advisor: Aside from his role as a venture capitalist, Ben Horowitz has been actively involved in various tech companies as a board member and advisor. Even before the inception of Andreessen Horowitz, he was known to sit on the boards of several influential tech companies. Notably, he joined the board of eBay in 2008 and served for six years.

As a key figure in the tech industry, Horowitz has provided guidance and advice to leaders of companies in which his firm has invested. He has been known to offer counsel to prominent figures such as Mark Zuckerberg of Facebook and Mark Pincus of Zynga, leveraging his expertise and experience to support the growth and success of these companies.

Beyond his business endeavors, Ben Horowitz is also a well-regarded author. He has written several books, including "The Hard Thing About Hard Things," where he shares his insights and experiences as an entrepreneur, offering valuable lessons on leadership and management in the startup world.

Ben Horowitz's career trajectory, from being a successful entrepreneur and CEO to co-founding a highly influential venture capital firm, has made him a notable figure in the technology and investment landscape. His strategic investments and industry expertise continue to shape the future of technology startups and the entrepreneurial ecosystem.


Marc Andreessen is known for his visionary ideas and insights, which have played a significant role in shaping the tech industry. Throughout his career, he has championed a number of important initiatives, including the development of the internet, the rise of social media, and the emergence of cryptocurrencies.

One of Andreessen's key visions is the power of software to transform the world. He believes that software is the key driver of innovation and that it has the potential to revolutionize every aspect of our lives. He has been instrumental in developing key software technologies such as web browsers, which have opened up new possibilities for communication and commerce.

Another key vision of Andreessen is the importance of entrepreneurship and innovation. He has been a strong advocate for the role of startups in driving economic growth and creating new opportunities. He has encouraged entrepreneurs to take risks and pursue bold ideas, and has invested in numerous startups that have gone on to achieve great success.

Marc Andreessen
Co-founder and General Partner at Andreessen Horowitz
Known for
Co-founder, General Partner
University of Illinois
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