FinTech firm Arch secures $52m Series B funding

September 15, 2025

Arch, a FinTech firm that provides digital infrastructure for private markets, has secured $52m in fresh funding to accelerate its growth.

The Series B round was led by Oak HC/FT, with contributions from Menlo Ventures, Craft Ventures, Quiet Capital and others.

The company positions itself as an AI-powered operating system designed to streamline alternative investments. Its platform consolidates financial data from fragmented sources such as portals, K-1s, and statements into a single secure hub, reducing administrative overhead and improving visibility for investors. Arch has also introduced features like Arch Pay, which automates capital calls to simplify workflows further.

The new capital will be used to expand Arch’s product capabilities, with a particular focus on institutional investors, large private wealth teams and established family offices. The company intends to enhance its reporting tools and develop new features for its client portal.

Arch has reported rapid growth over the past 14 months, with assets on the platform rising from $100bn to over $250bn. The company now serves more than 450 allocators worldwide, including four of the top private banks, seven of the top 25 accounting firms, and some of the largest institutional investors. Over half of its users have referred the platform to others, underlining strong client satisfaction.

Arch CEO Ryan Eisenman said, “Investors in private markets have long been underserved – dealing with fragmented data, clunky workflows and high fees.

“With this new capital and the support of our partners, we’re expanding our suite of CIO tools, developing new features within our client portal and enhancing reporting capabilities for LPs. We’re continuing to build the product the industry needs – streamlining analysis, centralizing reporting and eliminating manual back-office work tied to alternative investments.”

Oak HC/FT general partner Matt Streisfeld said, “In our diligence calls, Arch clearly stood out. We have LPs that use lots of solutions, but Arch clients showed a clear enthusiasm for the product and team that was lacking across any peer solutions. That, paired with their rollout across one of the nation’s biggest banks, their traction in the institutional space, and the hundreds of family offices and RIAs that use the platform gave our team deep conviction in Arch — now and in the future.”