Tech companies are businesses that focus on developing and selling technology products or services. This includes areas like software, hardware, and internet services. Examples of well-known tech companies include Apple, Google, and Microsoft. These companies often drive innovation and influence how people communicate, work, and access information. Many tech companies also invest in research and development to create new technologies, such as artificial intelligence and cloud computing. They play a significant role in the global economy, providing jobs and contributing to advancements in various industries, including healthcare, finance, and education.