Substox was built on a simple idea — most people don't truly know which companies they can invest in. Many well-known brands are owned by larger publicly traded corporations, and understanding those ownership structures is the foundation of confident investing.
Our platform gives clear insight into which companies are publicly traded, which are privately held, and how major holding companies shape the modern economy. By improving financial literacy and simplifying complex ownership networks, Substox helps investors at every level make more informed decisions.
Alphabet [Google]“Just Google it” has become the default response whenever someone needs information. Competing search engines—such as Yahoo, Bing, and DuckDuckGo—struggle to keep up, largely due to Google’s structural advantages, exclusive partnerships, and massive global reach, which make it extremely difficult for any rival to gain meaningful traction.
Taiwanese semiconductor chips have become the new gold of the modern world. From smartphones and electric vehicles to gaming consoles, nearly every advanced technology depends on Taiwan’s cutting-edge chips. This reliance was starkly visible during COVID-19, when supply shortages drove PlayStation 5 prices above $1,000.
At the same time, Taiwan faces significant geopolitical tension, with a certain powerful neighbor claiming sovereignty over the island. Any instability could disrupt global supply chains, showing just how crucial Taiwan’s semiconductor industry has become to both the global economy and modern technology.
NVIDIAJensen Huang went from washing dishes at Denny’s to leading NVIDIA, the world’s first $5 trillion company (check his LinkeDin). The company’s meteoric rise has been fueled by overwhelming demand for the hardware that powers 92% of AI infrastructure, leaving competitors like AMD and Intel far behind.
However, NVIDIA is heavily reliant on TSMC and ASML for its supply chain, making the industry highly volatile. Despite this, NVIDIA remains a cornerstone in keeping the United States competitive in the AI race against China.
Mineral Extraction & Processing➡️Wafer Production➡️Chip Design➡️Fabrication➡️Packaging➡️Board Integration➡️System Assembly➡️Software Execution. The supply networks that go into powering everyday electronics are undeniably complex and full of depth where every single player is reliant on another. Within this hyper-connected pipeline, corporate power and catastrophic vulnerabilities concentrate heavily around a few severe structural bottlenecks.
Japan lays the foundation by way of Shin-Etsu and SUMCO, which dominate global silicon wafer production. Building upon this, ARM controls essential processor architectures, while Synopsys and Cadence provide the indispensable Electronic Design Automation software required for logic creation. Moving into the physical manufacturing layer, ASML holds an absolute monopoly on Extreme Ultraviolet lithography equipment, and TSMC commands the market for high-end semiconductor fabrication. Beyond logic chips, South Korea's Samsung and SK Hynix anchor global memory production, alongside Micron in the United States, while NVIDIA leads the market for AI graphics processors.
AI Supply Chain ETFS: SMH, AIQ, DRAM
“Artificial intelligence is a five-layer cake: Energy, Chips, Infrastructure, Models, Applications” - NVIDIA CEO Jensen Huang. While many investors believe we may be in an economic AI bubble, there are also strong reasons behind the speculation. Experts widely describe today as the fourth Industrial Revolution—an era defined by rapid advances in artificial intelligence, automation, robotics, and next-generation internet technologies. There are trillions being poured into the artificial intelligence industry as economists warn that it may be mimicking the dot-com bubble. Regardless, numerous changes are being made to our electrical grid, significant investments are being made in chip fabrication foundries, and there is intense competition between different models, all within a growing economy built around artificial intelligence.
Artificial Intelligence ETFS: QQQ and CHAT
Corporations are constantly competing for a single finite human resource: attention, where every algorithmic refresh and scroll represents a calculated maneuver in a multi-billion-dollar battle to capture focus within a strictly capped twenty-four-hour day. Alphabet anchors this multi-billion-dollar attention economy by generating over $400 billion annually—predominantly through Google Search, YouTube ads, and cloud computing—followed closely by Meta, which brings in roughly $200 billion driven almost entirely by family-of-apps performance advertising, Amazon, which spans over $700 billion across e-commerce retail stores, third-party seller services, AWS cloud infrastructure, and high-intent retail media ads, and Microsoft, which generates steady revenue through cloud computing (Azure), enterprise software, professional networking (LinkedIn), and search advertising.
Global Digital Advertising ETFS: MAGS
Substox is built on the idea that financial literacy is the most underrated skill of adulthood. Start by searching any company, brand, or ticker — we'll show you whether you can invest in it and, if not, what you can buy instead.
Search any brand and Substox tells you whether you can buy shares in it. If the company is publicly traded you get its ticker, sector, country and market cap. If it is private, you get who owns it and which listed companies give you the closest exposure instead.
Substox tracks 23,065 companies: 4,634 publicly traded and 18,431 private, joined by 18,749 ownership links. Those links are what let the site answer “who owns this brand?” rather than just “does this brand exist?”
Free, and no account. Substox earns affiliate commissions on some outbound links, which never changes what the data says about a company.
No. Substox is an educational resource, not a licensed financial adviser, and nothing here is investment advice. The site shows you what is investable and who owns what so you can do your own research, and you should confirm anything important with a qualified professional.