Blockchain technology has emerged as a transformative paradigm with the potential to reshape diverse industries, including finance, supply chain management, and healthcare. Among its most impactful innovations are smart contracts, which enable automated, secure, and transparent execution of agreements, making them relevant for enterprise solutions. This study conducts a rigorous performance evaluation of three leading blockchain platforms, Ethereum, Hyperledger Fabric, and Corda, under varying transaction volumes in the MATLAB simulation platform. Experimental results indicated substantial differences in execution efficiency: Hyperledger Fabric consistently achieved the lowest mean transaction times (ranging from 0.000045 s to 0.000078 s), followed by Corda (0.000748 s to 0.005813 s), while Ethereum exhibited higher latency (0.1055 s to 1.7528 s) and greater variability across transactions. The analysis highlighted the distinctive strengths and limitations of each platform, offering important details about their suitability for different enterprise scenarios. Beyond benchmarking, the paper discusses the implications for organizational adoption, performance trade-offs, and future research directions. These findings clarify our knowledge about blockchain-based smart contract platforms and offer practical guidance for enterprises seeking optimal platform selection.