This thesis examines the impact of organizational and marketing innovations on the success of companies, with a particular focus on businesses in the Republic of Croatia. The research aims to demonstrate how implementing innovations within organizational structures and marketing strategies can enhance business performance and increase market competitiveness. Key findings suggest that organizational innovations, such as the introduction of new technologies, restructuring of business processes, and changes in management practices, play a pivotal role in boosting company efficiency and effectiveness. These innovations not only enable better adaptation to external factors and market fluctuations but also improve internal communication and employee motivation, which in turn positively influences business success. The thesis emphasizes that companies that have integrated advanced technologies into their business processes experience significant cost reductions and improvements in their products and/or services. In conclusion, organizational innovations are essential for increasing operational efficiency and ensuring long-term sustainability and success for companies.