AIOS Tech Inc., an investment holding company, operates as a technology-driven professional service provider in Hong Kong. It offers information technology services, such as digital transformation and support for enterprises; IT services for commercial clients across various industries; customized software development, system integration, and cloud technology solutions; customized IT solutions for the financial industry; data-driven full-stack solutions, including data assetization, enterprise-level data middle platform construction, and AI integration application services; and AI-driven full-scenario services, such as AI model development, platform construction, and infrastructure deployment, as well as is involved in the design, issuance, distribution, and management of financial products to small and medium-sized financial institutions, financial conglomerates, and cross-border enterprises. The company was formerly known as Nisun International Enterprise Development Group Co., Ltd and changed its name to AIOS Tech Inc. in February 2026. The company was founded in 2005 and is headquartered in Hung Hom, Hong Kong.