Machine Learning as a Service (MLaaS) refers to a suite of cloud-based tools designed to support data scientists and data engineers in developing machine learning models without the need for extensive local infrastructure. Major platforms offering MLaaS include AWS Machine Learning, Google Cloud Machine Learning, Microsoft Azure ML Studio, IBM Watson Machine Learning, and BigML, each providing unique features and capabilities to streamline the machine learning process. These services enable users to build, train, and deploy models efficiently by offering tools for collaboration, version control, and automation of repetitive tasks. MLaaS platforms integrate easily with existing cloud services, enhancing scalability and accessibility for businesses looking to leverage machine learning in their operations. As the AI market expands, driven by increasing demand for AI-driven solutions, MLaaS platforms are becoming essential tools for organizations aiming to stay competitive and innovative in their respective industries.