Arch Raises $52M as Part of Private Investment Platform Expansion

Arch has secured $52 million in a Series B round to scale its private markets infrastructure tools. The funding will support product expansion, particularly a feature called Arch Pay, as well as development of real-time reporting, automation of capital calls, and enhanced workflow across document collection and data aggregation.  

The round was led by Oak HC/FT, with participation from existing investors Craft Ventures, Quiet Capital, and Menlo Ventures among others. Arch already serves more than 450 allocators globally, including about 150 single-family offices and 100 RIAs/multi-family offices, as well as large private wealth teams and family offices. For advisors and wealth platforms handling alternative/private assets, manual tasks like collecting K-1s, tracking performance, managing capital calls, and pulling information from disparate portals remain costly and error-prone.  

Arch’s enhancements offer tools to automate much of that work: streamlining reporting, workflow, and payment flows. Integration-friendly features (APIs, real-time data) help platforms or integrators embed or partner without reinventing core infrastructure. This funding push signals increasing institutional demand for cleaner, more efficient private markets operations.  

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