Marc Andreessen

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Marc Lowell Andreessen (Template:IPAc-en Template:Respell; born July 9, 1971) is an American businessman, venture capitalist, and former software engineer. He is the co-author of Mosaic, the first web browser to display inline images; co-founder of Netscape; and co-founder and general partner of Silicon Valley venture capital firm Andreessen Horowitz. He co-founded and later sold the software company Opsware to Hewlett-Packard; he also co-founded Ning, a company that provides a platform for social networking websites. He supported presidential candidates of the Democratic party until 2016. In 2024 he became an advisor to Donald Trump.<ref>Template:Cite news</ref> Andreessen's net worth is estimated at $1.9 billion as of January 2025.

Early life and education

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Andreessen was born in Cedar Falls, Iowa, and raised in New Lisbon, Wisconsin,<ref name="simonebio">Simone Payment, Marc Andreessen and Jim Clark: The Founders of Netscape, The Rosen Publishing Group, 2006, p. 15. Template:ISBN.</ref> which he considered "the sticks".<ref name="bloomberg" /> He is the son of Patricia, customer service operator at Lands' End, and Lowell Andreessen, who worked as a sales manager for the seed producer Pioneer Hi-Bred International.<ref name=bloomberg/><ref name="Friend2015"/><ref>Template:Cite book</ref> He has a younger brother named Jeff. In 1998, Bloomberg reported that Jeff was a history major at the University of Wisconsin. Andreessen has stated that he had problematic relationships with his parents and brother, and that he did not like to talk about them.<ref name=bloomberg>Template:Cite news</ref><ref>Template:Cite news</ref> Andreessen discovered programming at age 12.<ref name=bloomberg/> In December 1993,<ref name="simonebio" /> Andreessen received his bachelor's degree in computer science from the University of Illinois at Urbana–Champaign (UIUC).<ref>Template:Cite web</ref> As an undergraduate, he interned twice at IBM in Austin, Texas.<ref>Template:Cite web</ref> He worked in the AIX graphics software development group responsible for the MIT X implementation and ports of the 3D language APIs: SGI's Graphics Language (GL) and PHIGS.Template:Citation needed He also worked as a programmer, earning $6.85 per hour, at the National Center for Supercomputing Applications (NCSA) at the University of Illinois. At that time, he became familiar with Tim Berners-Lee's open standards for the World Wide Web, but the World Wide Web browser required advanced programming skills to use. After being shown the graphic web browser ViolaWWW in late 1992, Andreessen and full-time salaried co-worker Eric Bina worked on creating a browser with integrated graphics that could be ported to a wide range of computers, including Windows. The result was the Mosaic web browser released in 1993.<ref>Template:Cite magazine</ref> The new web browser led to a 342,000 percent increase in web traffic in a year. Before Mosaic, there had only been 50 websites on the Web, but the number now increased to 10,000, while the percentage of internet users who surfed the Web increased from 1% to 25%.<ref name="Keen">Template:Cite book</ref>

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Mosaic is often referred to as the first successful web browser.<ref>Template:Cite book</ref><ref>Template:Cite book</ref> It was also the first browser widely used for both Windows and Mac.<ref>Template:Cite book</ref>

The NCSA though refused to give the Mosaic team credit for their contribution, so Andreessen, disillusioned, decided to leave the center in 1994.<ref name="Keen"/>

Career

Andreessen has worked at Netscape, Opsware, founded Andreessen Horowitz, and invested in many successful companies including Facebook, Foursquare, GitHub, Pinterest, LinkedIn, and Twitter.<ref name=cspan>Template:C-SPAN</ref>

Netscape

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Netscape 1.0 "Network release"

After graduating from the University of Illinois Urbana-Champaign in 1993, Andreessen moved to California to work at Enterprise Integration Technologies. Andreessen then met with Jim Clark, the founder of Silicon Graphics, who had recently exited the firm. Clark believed the Mosaic browser had great commercial possibilities and suggested starting an Internet software company. Soon, Mosaic Communications Corporation was in business in Mountain View, California, with Andreessen as co-founder and vice president of technology. The University of Illinois was unhappy with the company's use of the Mosaic name, so Mosaic Communications changed its name to Netscape Communications, and its flagship Web browser was the Netscape Navigator.<ref>Template:Cite web</ref> Netscape was the first successful commercial web browser (offered for free).<ref>Template:Cite book</ref><ref>Template:Cite book</ref> It offers a wide variety of clients, servers, development tools and e-commerce applications.<ref>Template:Cite book</ref> It also simplied the interface, increased speed and provided tools to prevent financial transactions in comparison with its predecessor Mosaic.<ref>Template:Cite book</ref>

Netscape's IPO in 1995 put Andreessen in the public eye. He was on the cover of Time<ref>Template:Cite news</ref><ref>"At just 24, he appeared—barefoot and wearing a crown—on the cover of Time."Template:Cite web</ref> and other publications.<ref>Template:Cite web</ref>

Netscape was acquired in 1999 for $4.3 billion by AOL. Andreessen's hiring as its chief technical officer was contingent on the completion of the acquisition.<ref>Template:Cite magazine</ref> The same year, he was named to the MIT Technology Review TR100 as one of the top 100 innovators in the world under the age of 35.<ref>Template:Cite web</ref>

Opsware

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Andreessen in 2004

After AOL acquired Netscape in late 1998, Andreessen founded Opsware with Ben Horowitz, Tim Howes, and In Sik Rhee.<ref name="CNET Loudcloud">Template:Cite web</ref> Originally named Loudcloud, the company provided computing, hosting and software services to consumer-facing internet and e-commerce companies. Loudcloud sold its hosting business to EDS and changed its name to Opsware in 2003, with Andreessen serving as chairman. Acquired by Hewlett-Packard for $1.6 billion in 2007, it was one of the first companies to offer software as a service and to attempt cloud hosting.<ref name="pcworld">Template:Cite web</ref>

Andreessen Horowitz

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Between 2005 and 2009, Andreessen and Horowitz separately invested a total of $80 million in 45 startups, including Twitter and Qik.<ref name="UCLA Engineering">Template:Cite web</ref> The two became well known as super angel investors.<ref name="UCLA Engineering" /> On July 6, 2009, Andreessen and Horowitz announced their Silicon Valley venture-capital firm Andreessen Horowitz.<ref name="CNNMoney">Template:Cite news</ref>

Andreessen Horowitz began with an initial capitalization of $300 million;<ref name="WSJ 2.1.2012">Template:Cite news</ref> within three years the firm grew to $2.7 billion under management across three funds.<ref name="WSJ 4.6.11">Template:Cite news</ref> In 2012, Andreessen Horowitz's portfolio holdings included Facebook, Foursquare, GitHub, Pinterest, Twitter and Honor Technology.<ref name="MarketWatch Release">Template:Cite web</ref> In 2021, Business Insider notes that successful IPOs that have cemented Andreessen Horowitz's reputation include Okta, Inc., PagerDuty, Pinterest, Accolade, Slack Technologies, Lyft, DigitalOcean and Coinbase.<ref>Template:Cite news</ref>

Both Andreessen and the firm have an interest in crypto currency. In 2021, the firm launched a $2.2 billion crypto-focused fund, which was followed by a 2022 $4.5 billion fund dedicated to crypto and blockchain. Notable crypto and NFT startups in its portfolio include Alchemy, Dapper Labs, Avalanche, OpenSea, Solana and Yuga Labs.<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

In 2023, the firm launched the American Dynamism fund, which focuses on hard tech sectors which serve national interest, including space, defense, manufacturing, robotics. The fund has backed companies like the defense manufacturing startup Hadrian and the hypersonic long-range rocket startup Castelion. In 2024, Andreessen Horowitz launched the 12-month American Dynamism Engineering Fellows Program, which was intended to recruit and train technologists.<ref>Template:Cite news</ref> Also associated with the American Dynamism fund is the annual American Dynamism summit sponsored by Andreessen Horowitz, which gathers startup founders, investors, Members of Congress and Defense Department officials. The summit is officially non-partisan and has partnered with Democratic defense officials like former Deputy Secretary of Defense Kathleen Hicks.<ref>Template:Cite news</ref>

On September 1, 2009, an investor group that included Andreessen Horowitz acquired a majority stake in Skype at a valuation of $2.75 billion,<ref name="TechCrunch 11.19.09">Template:Cite news</ref> which was considered risky.<ref name="WSJ Deal Journal">Template:Cite news</ref> The deal paid off in May 2011 when Microsoft bought Skype for $8.5 billion.<ref name="WSJ Deal Journal" /> In 2010, the firm assisted Silicon Valley attorney Ted Wang in creating the first free standardized seed round financing documents, the Series Seed Documents.<ref>Template:Cite web</ref>

Andreessen joined the eBay board of directors in 2008 and served on it for six years.<ref>Template:Cite magazine</ref> In October 2014, he announced his resignation from the board due to the company's decision to break off its online payments unit PayPal. The decision to cut ties with PayPal was a point of contention between Andreessen and investor Carl Icahn. Icahn advocated for the PayPal split while Andreessen opposed the spin-off, resulting in public disputes. Andreessen was accused by Icahn of putting his own interests in front of what was best for shareholders. Icahn published his argument in an open letter that detailed alleged conflicts of interest in eBay's 2009 sale of Skype to a group of private investors, which included Andreessen's firm.<ref>Template:Cite news</ref>

The fund is active in Europe. Despite this, in January 2025, after Donald Trump's election, Andreessen Horowitz closed its London office (its first office in Europe, led by general partner Sriram Krishnan) to pivot back to the crypto market in the U.S.<ref>Template:Cite news</ref> Nevertheless, it has also been developing a strong scout network in Europe, with a focus on AI startups. The fund has invested in the French unicorn Mistral AI, the German AI image generation startup Black Forest Labs and Berlin-based automation platform unicorn n8n, the UK's metaverse unicorn Improbable and insurtech startup Hyperexponential.<ref>Template:Cite news</ref><ref>Template:Cite news</ref><ref>Template:Cite news</ref>

In July 2025, Andreessen Horowitz led the largest seed round in history for AI startup Thinking Machines Lab, which raised a record $2 billion, valuing the firm at $12 billion.<ref>Template:Cite news</ref>

Andreessen Horowitz presents their primary political agenda as defending Little Tech (startups), in contrast to Big Tech incumbents. In April 2025, together with Y Combinator and AI companies like Anyscale, Exowatt, and Sourcegraph, the firm launched American Innovators Network, a coalition that represents "America's Little Tech ecosystem leading the next era of innovation and economic growth".<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

The New Yorker's Tad Friend remarks that Andreessen and Horowitz's leadership styles complement each other, with Andreessen being the visionary chairman while Horowitz is the people-person CEO.<ref name="Friend2015"/>

Other business ventures

Andreessen cofounded and chaired Ning, the third company he established, after Netscape and Loudcloud.<ref name="Marc Blog">Template:Cite web</ref> In September 2011, it was announced that Ning had been sold to Mode Media for a reported price of $150 million. Andreessen joined Glam Media's board of directors after the sale.<ref name="Biz Insider">Template:Cite web</ref>

He is a personal investor in companies including LinkedIn<ref name="WSJ Software Eating">Template:Cite news </ref> and boutique bank Raine.<ref name="Biz Insider Raine">Template:Cite web</ref>

He has also invested in funds tied to conservative causes such as New Founding, which is described as a "pro-American, Christian" venture capital fund or the "anti-woke" 1789 Capital, which aims to build a "parallel economy" (both as personal investments).<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

Andreessen has invested in multiple special economic zones including California Forever in northern California,<ref>Template:Cite news</ref> Próspera off the coast of Honduras,<ref>Template:Cite magazine</ref> and Praxis in an as yet to be announced location.<ref>Template:Cite news</ref> He has also invested in Pronomos Capital,<ref>Template:Cite web</ref> which is funding multiple special economic zone projects across the world.<ref>Template:Cite web</ref> These special economic zones have been linked by various sources to the Network State movement.<ref>Template:Cite web</ref><ref>Template:Cite web</ref>

Andreessen serves on the board of Meta,<ref name="co-founder">Template:Cite web</ref> Hewlett Packard Enterprise, Kno,<ref name="BizWeek Profile">Template:Cite web</ref> Stanford Hospital,<ref name="Stanford Hospital">Template:Cite web</ref> Bump Technologies, Anki,<ref name="TC: Debuts at WWDC">Template:Cite web</ref> Oculus VR,<ref>Template:Cite news</ref> OpenGov,<ref>Template:Cite web</ref> Dialpad, and TinyCo.<ref>Template:Cite web</ref> Hewlett Packard Enterprise announced in February 2018 that board member Andreessen would not seek reelection at the 2018 Annual Meeting of Stockholders on April 4.<ref>Template:Cite web</ref> In his time at Hewlett Packard, Andreessen had been partially blamed for some of the company's failures, including the recruiting of Léo Apotheker as well as the acquisitions of Autonomy and Palm.<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

Andreessen advises the leaders of companies in which Andreessen Horowitz invests, including Mark Zuckerberg of Facebook and Mark Pincus of Zynga.<ref name="Economist">Template:Cite news</ref> For example, he is advisor to Asana and director of CollabNet.<ref name="dialpad">Template:Cite web</ref> He is a proponent of Bitcoin.<ref>Template:Cite news</ref> Andreessen is on an advisory board for Neom, the Saudi Arabian government's plan to build a futuristic megacity in the desert.<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

Writings

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In April 2020, early in the COVID-19 pandemic, Andreessen published an opinion article, "It's time to build", describing the United States' COVID-19 response and suggesting technological and cultural solutions to the problem.<ref>Template:Cite web</ref><ref>Template:Cite news</ref>

In October 2023, Andreessen published a "Techno-Optimist Manifesto" arguing that civilization is built on technology and that "Technology is the glory of human ambition and achievement, the spearhead of progress, and the realization of our potential."<ref>Template:Cite web</ref> He has also described himself as a "tescrealist".<ref name=":12">Template:Cite web</ref>

Thinkers who have been noted to inform his writings include the German socialist philosopher Robert Michels,<ref>Template:Cite news</ref> Friedrich Nietzsche,<ref>Template:Cite news</ref> and the Italian writer Filippo Tommaso Marinetti, who was the founder of Futurism.<ref>Template:Cite news</ref>

Awards and accolades

Andreessen and Horowitz were ranked No. 6 on Vanity FairTemplate:'s 2011 New Establishment List,<ref name="Vanity Fair">Template:Cite web</ref> no. 1 on CNET's 2011 most influential investors list<ref name="CNET Investors">Template:Cite web</ref> and Nos. 2 and 21, respectively, on the 2012 Forbes Midas List of Tech's Top Investors.<ref name="Midas List">Template:Cite news</ref>

In 2012, Andreessen was named in the Time 100, an annual list of the 100 most influential people in the world assembled by Time.<ref name=Time2012>Template:Cite news</ref> His essay "Software is eating the world" has been influential and widely cited.<ref name="WSJ Software Eating"/><ref>Template:Cite web</ref><ref>Template:Cite web</ref><ref>Template:Cite news</ref>

In 2013, Andreessen was one of five Internet and Web pioneers awarded the inaugural Queen Elizabeth Prize for Engineering.<ref>"2013 Winners Announced" Template:Webarchive Queen Elizabeth Prize for Engineering</ref>

Andreessen was one of six inductees in the World Wide Web Hall of Fame announced at the First International Conference on the World-Wide Web in 1994.<ref>Template:Cite web</ref><ref name="Friend2015">Template:Cite magazine</ref>

Influence in tech

File:TechCrunch Disrupt SF 2016 - Day 2.jpg
Marc Andreessen speaks onstage during TechCrunch Disrupt SF 2016 at Pier 48 on September 13, 2016 in San Francisco, California.

In April 2012, Andreessen and Andreessen Horowitz General Partners Ben Horowitz, Peter Levine, Jeff Jordan, John O'Farrell, and Scott Weiss pledged to donate half their lifetime incomes from venture capital to charitable organizations.<ref name=Reuters>Template:Cite news</ref>

Andrew Keen remarks that "more than any other single individual , Andreessen was responsible for transforming the nonprofit Internet into a winner - take - all economy".<ref name="Keen"/> One of Andreessen's recognizable decisions was to make hyperlinks appear in blue and visited links in purple in the NCSA Mosaic web browser, a change that was implemented around 1993.<ref>Template:Cite web</ref> This choice, while seemingly simple, had a profound impact on the development of the World Wide Web. The blue hyperlink became a standard convention, allowing users to easily identify clickable text and navigate the burgeoning online world. This intuitive design choice contributed significantly to the widespread adoption of the web and remains a fundamental element of web design to this day. Andreessen has publicly explained his reasoning for the color choice, noting in an interview<ref>Template:Cite AV media</ref> that he simply "liked blue" and needed a color that would stand out on the original gray background of the browser, along with purple being visually distinct for visited links.<ref>Template:Cite web</ref>

Andreessen, alongside Peter Thiel and Eric Schmidt, are often considered the important tech investors in the U.S. defense industry sector. The Neue Zürcher Zeitung remarks that while Schmidt often issues warnings about the risk of the U.S. losing technological lead and Thiel emphasizes dominance over opponents, Andreessen strives for achieving peace through deterrence. His important investments in the area include Anduril Industries, Shield AI, the drone startup Skydio and the counter-drone startup Epirus.<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

In February 2016, Andreessen posted a tweet in response to India's decision to apply net neutrality to Facebook's proposed project Free Basics. The tweet suggested that anti-colonialism had been catastrophic for the Indian people. Andreessen later deleted the tweet following criticism from Indians and non-Indians alike (including Facebook founder Mark Zuckerberg).<ref name="dc">Template:Cite web</ref><ref>Template:Cite news</ref><ref>Template:Cite webTemplate:Cbignore</ref>Template:Undue weight inline Facebook spent millions advertising Free Basics to the Indian public.<ref>Template:Cite web</ref> The project failed due to violations, setting preferential tariffs in accessing content and setting up a "walled garden" on the internet.<ref>Template:Cite web</ref><ref>Template:Cite web</ref>

In April 2016, Facebook shareholders filed a class action lawsuit to block Zuckerberg's plan to create a new class of non-voting shares. The lawsuit alleges Andreessen secretly coached Zuckerberg through a process to win board approval for the stock change, while Andreessen served as an independent board member representing stockholders.<ref>Template:Cite news</ref>

According to court documents, Andreessen shared information with Zuckerberg about their progress and concerns and helped Zuckerberg negotiate against shareholders. Court documents included transcripts of private texts between Zuckerberg and Andreessen.<ref>Template:Cite news</ref>

Politics

Political activities

Andreessen endorsed and voted for Bill Clinton, Al Gore, John Kerry, Barack Obama and Hillary Clinton.<ref>Template:Cite news</ref> In 2012, Andreessen donated $100,000 to Republican presidential candidate Mitt Romney.<ref>Template:Cite web</ref><ref>Template:Cite news</ref> During the 2016 primary season, he endorsed Republican candidate Carly Fiorina, but after Fiorina dropped out of the race, Andreessen switched his endorsement to the Democratic nominee Hillary Clinton, citing the Republican nominee Donald Trump's immigration stance.<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

In July 2024, Andreessen announced he would donate to super PACs that support Donald Trump's 2024 presidential campaign.<ref>Template:Cite web</ref> During the first half of 2025, Andreessen donated $3 million to MAGA Inc., a super PAC that supports Donald Trump.<ref name=":13">Template:Cite web</ref>

Andreessen is a mega-donor to the political superPAC and pro-cryptocurrency advocacy group Fairshake.<ref name="newyorker.com">Template:Cite magazine</ref> Andreessen came out against president Joe Biden's re-election bid, saying he feared higher taxes on billionaires and stricter regulations on industries he invests in (cryptocurrency and AI).<ref name="newyorker.com"/> On Joe Rogan's podcast in November 2024, Andreessen claimed that some cryptocurrency users have been unfairly debanked.<ref>Template:Cite web</ref>

While not officially part of Elon Musk's DOGE, Andreessen has been listed as a “a key networker for talent recruitment” at the agency, according to The Washington Post.<ref>Template:Cite news</ref><ref>Template:Cite web</ref> He has also shared insight about DOGE's plans in various interviews.<ref>Template:Cite web</ref>

Several authors note that Andreessen belongs to a small group of tech leaders who play an increasingly central role not only in the Silicon Valley, but also in the U.S. political life. German journalist Claus Kleber, author of the ZDF documentary Trump und das Silicon Valley – Staatsstreich der Tech-Oligarchen ("Trump and Silicon Valley - coup d'état of the tech oligarchs"), opines that Andreessen's power is only outmatched by that of Peter Thiel, who often works alongside him. Evgeny Morozov, writing for the Spanish El País, notes that Andreessen "reimagines money" for the government, and that the tech leaders (dubbed "oligarch-intellectuals" by Morozov) have power to turn their "interpretive gift [...] into legislative mandate".<ref>Template:Cite news</ref><ref>Template:Cite news</ref><ref>Template:Cite news</ref><ref>Template:Cite news</ref><ref>Template:Cite news</ref>

Political views

Regarding his shift towards the Republican party, Andreessen explained that he was shocked by the Biden administration's aggressive attitude towards crypto currency and AI. In 2025, when interviewed by The New York Times's Ross Douthat, he recounted an occasion (in May 2024) in which he and Ben Horowitz attempted to meet with then-President Joe Biden, who declined the meeting but sent senior staff to explain the new policies, which included making sure "that A.I. is going to be a function of two or three large companies", directly regulated and controlled by the government without competition from any startup, as well as a ban on the free creation and release of code.<ref>Template:Cite news</ref><ref>Template:Cite news</ref><ref name="Douthat">Template:Cite news</ref> Andreessen's claim was disputed by Sam Altman.<ref>Template:Cite web</ref>

Andreessen also criticized elite education institutions for having radicalized children of the privileged class, teaching them to hate capitalism and start their job at his companies with the intention to destroy those companies from inside:

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Futurism counters Andreessen's point on elite education by showing that the political position of the average American remains stable.<ref name="Wilkins">Template:Cite news</ref> But Bloomberg notes that among the tech champions, the Democrats' turn to identity politics and technology-skepticism has spurred a rightward shift. Bloomberg remarks that the skepticism against new technology is based on issues such as "privacy, monopoly power and social media’s effects on young people", but criticizes the crackdown on crypto in particular, describing it as bringing "no discernible political benefit" as there are very few voters who are fixated on anti-crypto matters.<ref name="Green">Template:Cite news</ref>

Andreessen has supported high-skilled immigration as a source of talent for the tech industry, but by January 2025, he said that he was reconsidering this position. He has also criticized DEI policies issued by government and institutions in multiple occasions. In a 2014 interview with New York Magazine's Kevin Roose, he questioned the need of diversity rules on ethnicities. His reasoning was that companies were so desperate for talent that they would try to get it from anywhere. He also questioned the fact white and Asian people of different ethnicities and religions were often grouped together and considered not diverse. In a 3.5h interview talk with Lex Fridman, Andreessen said that mandatory NASDAQ rules that imposed diversity criteria on corporate boards were "crazy", recounting that on one occasion he was tempted to describe himself as "bisexual" to help Meta meet those criteria, as he felt for Peter Thiel, who was horrified when Meta lawyers suggested that he classified himself as "diverse".<ref name=Frid>Template:Cite web</ref> In July 2025, the Washington Post published leaked messages Andreessen sent to top officials in the Trump administration, stating that "The combination of DEI and immigration is politically lethal [...] they systematically cut most of the children of the Trump voter base out of any realistic prospect of access to higher education and corporate America". He also named Stanford University, the Massachusetts Institute of Technology (MIT) as well as the National Science Foundation (NSF) as particular culprits, warning that these institutions "will pay the price". In a group chat, he allegedly called for the NFS to receive "the bureaucratic death penalty". Reacting to the messages, MIT's spokesperson said that, "MIT is merit-based and affordable, driven by innovation and entrepreneurship, and committed to excellence — all with a mission of national service", while Stanford refused to comment on Andreessen's characterization of the university.<ref>Template:Cite news</ref><ref>Template:Cite news</ref><ref>Template:Cite news</ref><ref>Template:Cite news</ref>

Personal life

Andreessen identifies himself as German-American.<ref>Template:Cite tweet</ref>

Andreessen married Laura Arrillaga in 2006.<ref>Template:Cite news</ref> She is the founder of the Silicon Valley Social Venture Fund and daughter of Silicon Valley real estate billionaire John Arrillaga. The couple met in 2005, at a New Year’s Eve dinner organized by Andreessen. Andreessen considered Arrillaga and her father his replacement family. They got married nine months later. They have one son who was named John after Laura's father. John was carried by a gestational surrogate. According to Business Insider, John was 8-years-old in 2023.<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

In 2009, Andreessen issued a $25,000 reward for information leading to a conviction in the 1987 unsolved murder of Barbara Blackstone, a teacher from New Lisbon High School in Wisconsin, which he had attended.<ref>Template:Cite news</ref> The case remains unsolved as of 2022.<ref>Template:Cite news</ref>

In 2021, he and his wife bought a property in Malibu for $177 million from Serge and Florence Azria. This was the highest price paid for a California property at that time.<ref>Template:Cite news</ref> As of February 2023, his net worth is estimated at $1.7 billion by Forbes.<ref>Template:Cite web</ref>

In 2022, Andreessen advocated against the construction of 131 multifamily housing units in their affluent Atherton, California town.<ref name=":0">Template:Cite web</ref> In a letter, Andreessen and his wife wrote that they opposed permitting more than one house on a single acre of land.<ref name=":1">Template:Cite news</ref> Andreessen's comments sparked criticisms of hypocrisy, as he had previously argued for increased housing supply, in particular in California.<ref name=":1" /><ref name=":0" />

Works

References

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