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You’d think a billionaire making his email public would turn into a spam nightmare. But for Mark Cuban<\/strong>, staying open to public emails and skipping the usual red tape comes with an edge that outweighs the noise.<\/p>\n Speaking on comedian Theo Von’s podcast<\/a> in September 2024, Cuban said he’s spotted several new investment opportunities from cold emails. One of those messages led him to invest $500,000 in a space exploration company that later became a competitor to Elon Musk<\/strong>‘s SpaceX<\/strong>.<\/p>\n “They wanted to start a space company, I\u2019m like, I don\u2019t know s**t about space but I\u2019ll get you started and see what happens,” Cuban said. “It’s called Relativity Space<\/strong>, I still never met him, it was all email. I\u2019ve invested a few million, they\u2019re worth $4 billion.”<\/p>\n Don’t Miss:<\/strong><\/p>\n Relativity Space, founded in 2015 by Tim Ellis <\/strong>and Jordan Noone<\/strong>, uses advanced 3D printing and robotics to build rockets.<\/p>\n \u2018I Got Lucky’ <\/p>\n Cuban gave credit for the company’s success to its founders and said he simply provided capital to get them started because he saw their potential and capability early on.<\/p>\n “It\u2019s not like I helped them get there,” he told Von. “Guys were just insanely smart and good, so I got lucky.”<\/p>\n Relativity Space isn’t the only startup Cuban got involved with through cold emails. His entry into the pharmaceutical industry, which led to one of his most disruptive ventures, started with a cold email from Dr. Alex Oshmyansk<\/strong>y, he told Von.<\/p>\n “He said that there are a lot of generic drugs that were in short supply and kids can’t get their medicine, and I’m like well, what can we do about that,” Cuban said. “So we decided to create this company called Cost Plus Drugs<\/strong>.”<\/p>\n Cuban’s approach highlights a broader shift in how early-stage capital flows are forming outside of traditional venture networks, with some investors increasingly gaining exposure to private-market opportunities through more direct or unconventional channels. Platforms focused on alternative assets and fractional access to private investments<\/a> have also grown in popularity as retail investors look for ways to participate in segments of the market that were once limited to institutional backers.<\/p>\n See Also: <\/strong>The AI Marketing Platform Backed by Insiders from Google, Meta, and Amazon \u2014 Invest at $0.95\/Share<\/strong><\/a><\/strong><\/p>\n \u2018Opens a Lot of Doors’ <\/p>\n Another major Cuban investment success story that started with a cold email is cloud storage company Box Inc. (NYSE:<\/a>BOX<\/a>). Co-founder Aaron Levie<\/strong> sent<\/a> cold emails in 2005 to dozens of potential investors, including Cuban, to help scale the startup. Cuban replied<\/a> within hours and showed openness to a partnership that led to a $350,000 investment. Box later went public and now has a market value of about $3.6 billion.<\/p>\n Story Continues <\/p>\n Some other startups Cuban has backed after cold emails include food-tech company SAVRpak<\/strong>, college sports merchandise platform Campus Ink <\/strong>and decentralized finance platform Injective.<\/p>\n “Sometimes just making yourself available opens a lot of doors, and it\u2019s helped me a ton,” Cuban told Von.<\/p>\n Read Next:\u00a0<\/strong><\/p>\n Building Wealth Across More Than Just the Market<\/strong> <\/p>\n Building a resilient portfolio means thinking beyond a single asset or market trend. Economic cycles shift, sectors rise and fall, and no one investment performs well in every environment. That’s why many investors look to diversify with platforms that provide access to real estate, fixed-income opportunities, professional financial guidance, precious metals, and even self-directed retirement accounts. By spreading exposure across multiple asset classes, it becomes easier to manage risk, capture steady returns, and create long-term wealth that isn’t tied to the fortunes of just one company or industry.<\/p>\n Rad AI<\/strong><\/p>\n RAD Intel is an AI-driven marketing platform helping brands improve campaign performance by turning complex data into actionable insights for content, influencer strategy, and ROI optimization.<\/a><\/strong> Positioned within the multi-hundred-billion-dollar digital marketing industry, the company works with global brands across sectors to improve targeting precision and creative performance using its analytics and AI tools. With strong revenue growth, expanding enterprise contracts, and a Nasdaq ticker reserved under $RADI, RAD Intel is opening access to its Regulation A+ offering, giving investors exposure to the growing intersection of AI, marketing, and creator economy infrastructure.<\/p>\n Arrived<\/strong><\/p>\n Backed by Jeff Bezos, Arrived Homes makes real estate investing accessible with a low barrier to entry. Investors can buy fractional shares of single-family rentals and vacation homes starting with as little as $100<\/strong><\/a>. This allows everyday investors to diversify into real estate, collect rental income, and build long-term wealth without needing to manage properties directly.<\/p>\n Lightstone<\/strong><\/p>\n Lightstone DIRECT gives accredited investors access to institutional-quality multifamily real estate opportunities backed by a vertically integrated operator with more than $12 billion in assets under management and a 40-year track record.<\/a><\/strong> With more than 25,000 multifamily units nationwide \u2014 including significant exposure to low-supply Midwest markets where rent growth has remained resilient \u2014 Lightstone is positioning investors to benefit from tightening housing supply, strong occupancy trends, and long-term rental demand. Through Lightstone DIRECT, individuals can co-invest alongside the firm, which commits at least 20% to each deal, offering exposure to professionally managed multifamily assets designed to generate durable income and long-term appreciation beyond the traditional stock market.<\/p>\n AdviserMatch<\/strong><\/p>\n AdviserMatch is a free online tool that helps individuals connect with financial advisors based on their goals, financial situation, and investment needs<\/a><\/strong>.<\/strong> Instead of spending hours researching advisors on your own, the platform asks a few quick questions and matches you with professionals who can assist with areas like retirement planning, investment strategy, and overall financial guidance. Consultations are no-obligation, and services vary by advisor, giving investors a chance to explore whether professional advice could help improve their long-term financial plan.<\/p>\n Accredited Debt Relief<\/strong><\/p>\n Accredited Debt Relief is a debt consolidation company focused on helping consumers reduce and manage unsecured debt through structured programs and personalized solutions<\/a><\/strong>. <\/strong>Having supported more than 1 million clients and helped resolve over $3 billion in debt, the company operates within the growing consumer debt relief industry, where demand continues to rise alongside record household debt levels. Its process includes a quick qualification survey, personalized program matching, and ongoing support, with eligible clients potentially reducing monthly payments by 40% or more. With industry recognition, an A+ BBB rating, and multiple customer service awards, Accredited Debt Relief positions itself as a data-driven, client-focused option for individuals seeking a more manageable path toward becoming debt-free.<\/p>\n Finance Advisors<\/strong><\/p>\n Finance Advisors helps Americans approach retirement with greater clarity by connecting them to vetted, fiduciary financial advisors who specialize in tax-aware retirement planning<\/a><\/strong>.<\/strong> Rather than focusing on products or investment performance alone, the platform emphasizes strategies that account for after-tax income, withdrawal sequencing, and long-term tax efficiency\u2014factors that can materially impact retirement outcomes. Free to use, Finance Advisors gives individuals with meaningful savings access to a level of planning sophistication historically reserved for high-net-worth households, helping reduce hidden tax risk and improve long-term financial confidence.<\/p>\n Immersed<\/strong><\/p>\n Immersed is a spatial computing company building immersive productivity software that enables users to work across multiple virtual screens inside VR and mixed-reality environments.<\/a> <\/strong>Its platform is used by remote workers and enterprises to create virtual workspaces that reduce reliance on traditional physical hardware while improving focus and collaboration. The company is also developing its own lightweight VR headset and AI productivity tools, positioning itself in the future-of-work and spatial computing space. Through its pre-IPO offering, Immersed is opening access to early-stage investors looking to diversify beyond traditional assets and gain exposure to emerging technologies shaping how people work.<\/p>\n Image: Imagn<\/strong><\/p>\n This article I ‘Never Met Him, It Was All Email’ \u2014 Mark Cuban Says He Invested $500K After a Cold Email, That Company Became a $4B SpaceX Rival<\/a> originally appeared on Benzinga.com<\/a><\/p>\n \u00a9 2026 Benzinga.com. Benzinga does not provide investment advice. All rights reserved.<\/p>\n","protected":false},"excerpt":{"rendered":"Benzinga and Yahoo Finance LLC may earn commission or revenue on some items through the links below. 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