What is First Harmonic?

First Harmonic is a Venture Capital based in San Francisco.

How many investments has First Harmonic made?

First Harmonic has made 5 disclosed investments.

What does First Harmonic invest in?

First Harmonic invests in Artificial Intelligence, Fintech, SaaS Seed, Early Stage companies.

What companies has First Harmonic invested in?

First Harmonic's portfolio includes Actively AI, Rebolt, Kobalt Labs, Simple AI, VibeCode.

First Harmonic

Venture Capital

San Francisco-based early-stage venture capital firm that invests in founders and runs a non-dilutive go-to-market program to accelerate portfolio growth.

San Francisco, United States · 5+ investments · 5 portfolio companies

Website

Seed

Early Stage

Artificial Intelligence

Fintech

SaaS

Headquarters: San Francisco, United States
Founded: 2025
Website: firstharmonic.com
Portfolio Companies: 5

Total Investments: 5
Last Investment: Apr 2026
Geographic Focus: United States

Investment Thesis

Early-stage investors pairing capital with a structured go-to-market program to help founders build repeatable revenue engines.

First Harmonic is a Venture Capital firm based in San Francisco, United States. It has made 5 investments, including Actively AI, Rebolt and Kobalt Labs. Focus areas include Artificial Intelligence and Fintech.

Portfolio5

Co-investors18

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18 co-investors across 20 shared portfolio companies — who they back alongside, and how often they lead.

Venture Capital ×16 · Accelerator ×2 · 18 shared rounds

Investment History

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