We will go alphabetically and view the names of known technologies (companies). So here we go ABC Tech.

ABC Tech

• Apple Inc.: Known for its iPhones, iPads, Mac computers, and software like iOS and macOS.
• BlackBerry Limited: A Canadian company known for its smartphones, software, and cybersecurity solutions
• Cisco Systems, Inc.: A multinational technology conglomerate known for its networking hardware, software, and telecommunications equipment
• Dell Technologies: A multinational technology company known for its personal computers, servers, storage devices, and IT solutions.
• Electronic Arts Inc. (EA): A video game company known for popular gaming franchises like FIFA, Madden NFL, and The Sims.
• Facebook (Meta Platforms, Inc.): The social media giant founded by Mark Zuckerberg.
• Google (Alphabet Inc.): Known for its search engine, Android operating system, and numerous other products and services.
• HP (Hewlett Packard) A multinational information technology company known for its personal computers, printers, and IT services
• Intel Corporation: A leading semiconductor manufacturer.
• JPMorgan Chase & Co. (JPMC): While primarily a financial institution, JPMorgan Chase is heavily involved in technology, especially in the development of financial technology (FinTech) and blockchain solutions.
• Kingston Technology Company, Inc.: A manufacturer of computer memory products, including RAM modules and solid-state drives (SSDs).
• LG Electronics: A South Korean conglomerate known for its consumer electronics, including smartphones, TVs, and home appliances
• Microsoft: Known for its Windows operating system, Office suite, and cloud computing services.
• NVIDIA Corporation: Known for its graphics processing units (GPUs) used in gaming and AI.
• Oracle Corporation: A multinational computer technology corporation specializing in database software and cloud solutions.
• PayPal Holdings, Inc.: A global online payment company that provides a platform for online money transfers and payments
• QuickBooks (Intuit Inc.): A financial software product for small businesses and individuals, known for accounting and financial management.
• Raspberry Pi Foundation: A UK-based charity that developed the Raspberry Pi, a low-cost, credit card-sized computer used for educational and hobbyist purposes
• Samsung Electronics: A South Korean conglomerate known for its smartphones, TVs, and other consumer electronics.
• Tesla, Inc.: An electric vehicle and clean energy company led by Elon Musk.
• Uber Technologies, Inc.: A ride-sharing and transportation network company.
• Visa Inc.: A multinational financial services corporation known for its credit and debit card payment processing services.
• Walmart Inc.: While primarily a retail company, Walmart has a significant presence in e-commerce and technology, offering online shopping and digital services.
• Xiaomi Corporation: A Chinese multinational electronics company known for its smartphones, smart home devices, and consumer electronics.
• Yahoo! Inc.: An internet services company known for its web portal and search engine
• Zoom Video Communications, Inc.: A company that provides video conferencing and online meeting software and services, known for its Zoom platform.

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Conclusion

I have enlisted every known Tech company alphabetically. You can go ahead and search each one if you want but I think the little description with the company will tell you what they do and which category (apart from technology) they lie in.