Tech companies are businesses that focus on developing and selling technology products or services. This includes a wide range of areas such as software, hardware, and internet services. Examples of well-known tech companies include Apple, Google, and Microsoft. These companies often drive innovation and play a significant role in shaping how we communicate, work, and access information. Many tech companies also invest in research and development to create new technologies and improve existing ones. They often employ skilled professionals in fields like engineering, data science, and design. The growth of tech companies has transformed various industries, making technology an integral part of everyday life.