Evaluating the effect of horizontal Integration strategy on performance of commercial State corporations in Kenya

This study aimed to evaluate the impact of horizontal integration on performance of Commercial State Corporations in Kenya. The study was based on positivist research philosophy. A cross-sectional correlational design was adopted as the study design. The target population was 1,026 senior managers of the Commercial State Corporations. The sample size was 99 senior managers in Commercial State Corporations. Primary data were gathered using a structured questionnaire. Collected data was analysed using descriptive data analysis techniques (Mean, Standard Deviation, Maximum and Minimum) and regression analysis. The findings of the study were presented using figures and tables. The study established a significant effect of horizontal integration strategy on financial, customers, internal business process and learning, growth and development performance of Commercial State Corporations in Kenya (? =0.536, p=0.000<0.05; ? =0.548, p=0.000<0.05;? =0.359,p=0.000<0.05;? =0.201,p=0.027<0.05). The study concluded that the horizontal integration strategy significantly improved the financial, customer, internal business process, and learning, growth, and development performance of Commercial State Corporations, supported by statistical evidence. The study recommends that Commercial State Corporations should streamline regulations to facilitate horizontal integration, ensure alignment with strategic objectives, prioritise sectors that enhance efficiency and service delivery, collaborate with competition authorities to comply with antitrust laws, and proactively address market concentration and anti-competitive concerns.