# Prefix Capital

Prefix Capital is a Private Equity based in San Francisco, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** San Francisco, United States
- **Region:** North America
- **Address:** San Francisco, United States
- **Founded:** 2019
- **Assets under management:** Undisclosed
- **Website:** www.prefixcapital.com
- **LinkedIn:** https://www.linkedin.com/company/prefixcap

## Regulatory record

- **Reports private funds:** No

## About

Prefix Capital is a private equity firm based in San Francisco, US. It focuses on a Venture Capital investment approach.

## Sectors

- Enterprise Software
- AI/ML
- Consumer Electronics
- Industrial Tech
- Biotech

## People

- Byron Alsberg — Founding Partner
- Owen Van Natta — Founding Partner
- Calvin Ling — Founding Principal

## Questions

### Who runs investment decisions at Prefix Capital?

Byron Alsberg and Owen Van Natta, both founding partners, make investment decisions together. Alsberg’s background covers semiconductor and voice-technology operating roles at Texas Instruments and Audience, plus two startup exits; Van Natta held executive roles at Amazon, Facebook, News Corp, and Zynga. Calvin Ling, the founding principal, supports diligence and portfolio operations but is not listed as an investment committee member.

### How does Prefix Capital source its deal flow?

The firm sources opportunities primarily through the personal networks of its founding partners — Van Natta from the consumer-internet and social-media executive ecosystem, and Alsberg from the semiconductor, enterprise-software, and startup-operator communities. The partnership’s combined relationships, formed at companies including Amazon, Facebook, and Texas Instruments, function as the primary origination channel. No external sourcing platform or scout network is disclosed.

### Which sectors does Prefix Capital explicitly invest in?

The firm invests across enterprise software, artificial intelligence and machine learning, consumer electronics, semiconductor-adjacent industrial technology, and biotechnology — all mapped to the deep-tech thesis described on their website. Byron Alsberg’s background with Audience and Texas Instruments and Owen Van Natta’s consumer-internet lineage at Amazon and Facebook inform this cross-section. No explicit negative sector exclusions are stated.

### Does Prefix Capital participate in fund commitments or only direct deals?

Based on the available public record, Prefix Capital executes direct equity investments in portfolio companies and has not disclosed any fund-of-funds commitments or co-investment participation alongside external GPs. The firm’s small team size and concentrated early-stage strategy suggest a direct-investment-only model, though no formal statement confirms this stance.

## Related profiles

- [Disrupt Equity](https://altss.com/profile/preferred-income-fund-1-mgr)
- [PreIPO Capital Partners](https://altss.com/profile/preipo-capital-partners)

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Last updated: 2026-06-03T20:00:00.000Z

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