Pen companies are businesses that design, manufacture, and sell writing instruments, primarily pens. These companies produce a variety of pen types, including ballpoint, fountain, gel, and rollerball pens. They often focus on quality, innovation, and design to meet the needs of different consumers, from students to professionals. Many pen companies also offer customization options, allowing customers to personalize their pens with names or logos. Some well-known pen companies include Parker, Cross, and Pilot. These brands are recognized for their craftsmanship and have established a loyal customer base over the years.