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Unsexy Arch again proves irresistible to 'RIA' VCs, who buy $52 million stake and see it as the 'Stripe' between RIAs and alts providers-- eliminating hundreds of alt investment portal log-ins

Reported by Riabiz
Oct 3, 2025· 2 min read
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Key Takeaways
  • • Arch Labs secured a $52 million investment from venture capital firms focused on the RIA (Registered Investment Advisor) sector, signaling sustained investor confidence in infrastructure solutions serving wealth advisors and alternative investment platforms.
  • • Investors position Arch as the "Stripe between RIAs and alts providers"—a critical infrastructure layer that consolidates portfolio management workflows across hundreds of alternative investment portals, reducing fragmentation and operational friction for advisors.
  • • Arch automates manual processes including document collection and capital calls, enabling RIAs to make faster investment decisions while streamlining administrative burden across alternative investment operations.
  • • The investment reflects broader market momentum: RIAs are significantly increasing allocations to private credit and alternative investments, with 53% of advisors planning to boost private credit exposure (up from 15% previously), driving demand for integration and management platforms.
Summary
Arch Labs has attracted a $52 million funding round from venture capital investors specializing in the RIA ecosystem, underscoring persistent market demand for infrastructure solutions that simplify how independent wealth advisors access and manage alternative investments. The company is being positioned as a critical intermediary—described by backers as the "Stripe between RIAs and alts providers"—that addresses a fundamental pain point: the fragmentation created by hundreds of separate alternative investment portals requiring individual login credentials and manual portfolio management workflows.

The core value proposition centers on automation and consolidation. Arch's platform eliminates redundant manual processes such as document collection and capital call management, allowing RIAs to consolidate their alternative investment operations into a single interface rather than juggling multiple vendor systems. This infrastructure play directly supports the accelerating shift of capital toward alternatives within the RIA channel. Industry data shows that RIAs planning to increase private credit allocations surged from 15% to 53%, while those boosting broader alternative investment exposure are also growing—indicating that advisors recognize both the opportunity and the operational challenge of scaling alternatives across their client bases.

The investment timing aligns with significant structural changes in the alternatives market. Institutional investors, including family offices and high-net-worth clients served by RIAs, are deploying capital into private credit, private equity, and other alternatives at unprecedented scale. However, the advisor ecosystem has not kept pace with seamless operational infrastructure. By automating capital call execution, investor document management, and portfolio reporting, Arch removes friction that would otherwise slow RIA adoption of alternative products and limit client access to growing asset classes.

This funding round reflects investor confidence that unsexy but essential operational infrastructure—tools that solve real workflow problems rather than chase trend cycles—remain attractive investment targets within the RIA technology stack. Menlo Ventures and fellow investors appear confident that as RIAs continue building their alternatives capabilities to meet client demand, platforms that unify vendor ecosystems and reduce manual overhead will command significant strategic value.

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Riabiz Unsexy Arch again proves irresistible to 'RIA' VCs, who buy $52 million stake and see it as the 'Stripe' between RIAs and alts providers-- eliminating hundreds of alt investment portal log-ins