Arch Labs

Arch offers a digital administration platform that automates and standardizes the management of private investment portfolios. The company serves a diverse client base, including family offices, registered investment advisors (RIAs), banks, accounting firms, and institutional investors. Its business model revolves around providing a software-as-a-service (SaaS) solution that replaces manual processes and disparate systems like spreadsheets and multiple GP portals. The platform functions by aggregating all investment-related documents—such as K-1s, capital call notices, financial statements, and investor updates—from thousands of different fund portals and emails into a single, secure repository. Leveraging a combination of machine learning and generative AI, Arch automatically extracts, standardizes, and validates data, escalating exceptions to a New York-based operations team to ensure accuracy. Key features include automated data extraction, tax document automation, cash flow management, performance tracking, and AI-powered summaries of lengthy documents. This enables clients to gain a holistic, real-time view of their holdings in private equity, venture capital, real estate, and hedge funds.

The company has achieved significant financial milestones, signaling strong investor confidence in its model. After an initial Angel round in 2021 and a $5.5 million Seed round in late 2021, Arch secured a Series A in 2023. Most recently, in September 2025, the company raised $52 million in a Series B round led by Oak HC/FT, with participation from existing investors like Craft Ventures, Menlo Ventures, and Quiet Capital. This capital is intended to fuel product expansion, enhance support for institutional clients, and improve real-time reporting capabilities, furthering Arch's mission to become the comprehensive operating system for the private markets.