Investors / United States / First Harmonic
First Harmonic
Venture capital · San Francisco, CA, United States · North America
First Harmonic is an early stage investor that runs a go-to-market program for founders. The site describes its activity only in these terms.
Invests inAI & Machine LearningEnterprise SoftwareFintech
In its own wordsgo-to-marketearly-stage
Your fit with First Harmonic
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsFirst Harmonic lists 5 checked portfolio companies on its own site and is named in 6 funding rounds, 3 of them as lead. Its most frequent entry is Series A, 50% of the companies with a known first round. Its largest themes are AI & Machine Learning (40%), Enterprise Software (30%) and Fintech (20%). 100% of its companies are based in United States. It invests most often alongside Conversion Capital, Kleiner Perkins and Y Combinator.
Counts come from funding rounds that name First Harmonic, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 17% |
| Series A | 50% |
| Series B | 17% |
| Growth | 17% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 1 | 1 |
| '26 | 5 | 2 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 4th | 5 companies |
| Recent activity | 89th | 6 rounds in 12 months |
| Early stage | 57th | 17% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 74th | 40% in its largest sector |
| Reach | 19th | 1 country |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Conversion Capital | 2 |
| Kleiner Perkins | 2 |
| Y Combinator | 2 |
| Abstract | 1 |
| Alkeon Capital | 1 |
| Alloy Labs | 1 |
| Bain Capital Ventures | 1 |
| Conviction | 1 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers5100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 40% | 18% |
| Enterprise Software | 30% | 8% |
| Fintech | 20% | 12% |
| Space & Defense | 10% | 3% |
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Conversion Capital
Compare First Harmonic head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with First Harmonic| Date | Company | Stage |
|---|---|---|
| 2 Nov 2026 | Series C+ | |
| 11 Jun 2026 | Series A | |
| 28 Apr 2026 | Series B Led | |
| 14 Feb 2026 | Seed Led | |
| 1 Dec 2025 | Series A Led |
Round details for First Harmonic
Amounts, full round histories and every co-investor in First Harmonic's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
5 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| The company provides custom-built AI for GTM teams to build pipeline, win deals, and expand customers | AI & Machine LearningEnterprise Software | Apr 2026Series B | Funding round | |
| Applied Compute provides a platform for training, inference, and improvement of artificial intelligence models. | AI & Machine LearningSpace & Defense | Nov 2026Series C+ | Funding round | |
| Kobalt Labs provides an operating system for risk and compliance management | FintechEnterprise Software | Dec 2025Series A | Funding round | |
| Poetic develops an AI system that learns and automates business processes | AI & Machine LearningFintech | Jun 2026Series A | Funding round | |
| Simple AI develops and implements AI phone agents for customer interactions and sales. | AI & Machine LearningEnterprise Software | Feb 2026Seed | Funding round |
About this data
site last read 5 Nov 2026- Site
- firstharmonic.com
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 1 Dec 2025
- Companies checked
- 5
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
Get First Harmonic's profile as data
Pull First Harmonic's portfolio, co-investors and changes through one API key or MCP, open every portfolio row, compare it with other firms, and get an email when it adds a company or files a fund.
Work email, sign-in link by email. Already have an account? Log in- Ask AI5 plain-English investor searches a day
- Full listsEvery portfolio row and two-firm overlap
- API and MCP100 REST or MCP calls a month, one key
- AlertsFollow 5 investors for portfolio and fund changes
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/firstharmonic.com
# also
GET /v1/firms/firstharmonic.com/portfolio
GET /v1/firms/firstharmonic.com/coinvestors
GET /v1/firms/firstharmonic.com/news