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Prefix Capital

Venture capital

Pre-Seed–Seed · 4 people tracked

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Investment thesis

Prefix Capital is an early-stage venture firm that invests in deep technology companies.

Source: firm website, verified Aug 3, 2026.

Stage
Pre-Seed–Seed

Team · 4 people

from the firm's website
Byron Alsberg· Founding Partner

Byron has a mixed business and technology background, having helped build custom semiconductor work at Texas Instruments and voice technology at Audience, and founded two startups acquired by public companies. He focuses his investments on early-stage deep technology companies.

Owen Van Natta· Founding Partner

Owen is an idea-driven investor whose career includes work with companies led by Bezos, Zuckerberg, Murdoch, and Pincus. He helps founders reframe problems and consider unconventional approaches.

Calvin Ling· Founding Principal

Calvin left a role at Honda Silicon Valley Lab to join Byron and Owen, starting with diligence work before taking on investment management and operations. He works across the organization in roles spanning investment, finance, legal, and general management.

Calvin· Investment Associate

Joined Prefix Capital after leaving a role at Honda Silicon Valley Lab, graduating college a quarter early. He works across the organization on due diligence, investment management, financial analysis, legal/controller duties, vendor management, and general operations.

Frequently asked questions

What stage does Prefix Capital invest at?
Prefix Capital invests at the Pre-Seed, Seed stages.
What sectors does Prefix Capital focus on?
Prefix Capital focuses on AI & Machine Learning, Biotech, Crypto & Web3, Deep Tech, Semiconductors.

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