The global AI as a Service market is projected to grow from USD 20.26 billion in 2025 to USD 91.20 billion by 2030, representing a 35.1% compound annual growth rate, as companies adopt cloud-delivered artificial intelligence tools to improve efficiency, automate workflows and strengthen customer engagement. MarketsandMarkets said demand is being driven by the appeal of advanced AI capabilities without the cost and complexity of building in-house infrastructure, alongside broader cloud adoption and continued advances in machine learning, natural language processing and generative AI. The report describes AI as a Service, or AIaaS, as a cloud-based model that lets organizations deploy scalable AI applications through managed platforms, APIs and subscription services rather than investing heavily in dedicated systems. It says enterprises are moving from pilot projects to wider cloud-native deployments across analytics, customer service, automation and intelligent business applications, as they seek faster implementation, lower costs and quicker time-to-value. Among end users, BFSI is expected to account for the largest market share as financial institutions increase spending on fraud detection, predictive analytics, risk management and personalized customer experiences. No-code and low-code machine learning tools are forecast to be the fastest-growing segment because they make AI development more accessible, support rapid prototyping and reduce reliance on specialized coding expertise. Regionally, North America is expected to lead the market through 2030 thanks to its technology infrastructure, cloud ecosystem and early enterprise adoption across sectors including healthcare, finance and retail. Asia Pacific is identified as the fastest-growing region. The report names Microsoft, IBM, Google, AWS, OpenAI, NVIDIA, Salesforce, Oracle, SAP and HPE among key companies in the market.