Revenue generated by the advertising industry in South Korea from 2013 to 2021 has been a significant factor in the country's economic growth. In 2021, the revenue distribution in the advertising industry was analyzed by medium, showcasing the various platforms that contributed to the industry's success. Furthermore, the advertising spending in South Korea has been steadily increasing from 2014 to 2022, indicating the industry's continuous growth and potential. The expenditure on advertising in 2021 was also examined by medium, providing insights into the preferred channels for advertising in the country. Additionally, the advertising spending growth rate in South Korea from 2010 to 2023 has been a promising trend, reflecting the industry's resilience and adaptability to changing market dynamics. Lastly, the main advertising companies in South Korea in 2022 were ranked based on their sales revenue, highlighting the key players in the industry.