A startup is a new business that is often focused on developing a unique product or service. These companies are usually founded by entrepreneurs who want to solve a specific problem or meet a market need. Startups often seek funding from investors to help them grow quickly and scale their operations. Many startups operate in the tech industry, creating innovative solutions like apps or software. They aim to disrupt traditional markets and can sometimes grow rapidly, leading to significant success. Famous examples of successful startups include Uber and Airbnb, which transformed the way people use transportation and find accommodations.