Investors / United States / Altos Ventures
Altos Ventures
Venture capital · Menlo Park, CA, United States · North America
Altos Ventures is a venture capital firm that partners with portfolio companies across many regions and industries. Its site publishes essays on venture investing and entrepreneurship, such as pieces on hedgehog entrepreneurs and focusing on controllable factors.
Invests inAI & Machine Learning
In its own wordsventure capitalentrepreneurshipfundamentalsportfolio
Your fit with Altos Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsAltos Ventures lists 15 checked portfolio companies on its own site and is named in 20 funding rounds, 12 of them as lead. Its most frequent entry is Series B, 40% of the companies with a known first round. Its largest themes are AI & Machine Learning (32%), E-commerce & Marketplaces (14%) and Fintech (11%). 60% of its companies are based in United States. It invests most often alongside Y Combinator, SBVA and 1Sharpe Ventures.
Counts come from funding rounds that name Altos Ventures, 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 roundAltos Ventures does not state its stages on its site, so only what it does is shown.
Show as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 20% |
| Series A | 20% |
| Series B | 40% |
| Growth | 20% |
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 | 9 | 4 |
| '26 | 11 | 8 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 39th | 15 companies |
| Recent activity | 97th | 14 rounds in 12 months |
| Early stage | 58th | 20% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 57th | 32% in its largest sector |
| Reach | 70th | 4 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 32% | 18% |
| E-commerce & Marketplaces | 14% | 6% |
| Fintech | 11% | 12% |
| Enterprise Software | 7% | 8% |
| Consumer | 7% | 3% |
| Cybersecurity | 7% | 4% |
| Healthcare & Biotech | 4% | 15% |
| Media & Entertainment | 4% | 4% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Y Combinator | 5 |
| SBVA | 2 |
| 1Sharpe Ventures | 1 |
| 645 Ventures | 1 |
| 8VC | 1 |
| Able Partners | 1 |
| Accel | 1 |
| Advisors.Fund | 1 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers15100%
- 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.
Co-investor network
who it backs companies with, and who they back togetherCompare Altos Ventures 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 Altos Ventures| Date | Company | Stage |
|---|---|---|
| 24 Jul 2026 | Series C+ Led | |
| 8 Jul 2026 | Series B Led | |
| 1 Jun 2026 | Series B Led | |
| 29 Apr 2026 | Seed Led | |
| 9 Apr 2026 | Series A Led | |
| 17 Mar 2026 | Series C+ | |
| 27 Jan 2026 | Seed Led | |
| 13 Jan 2026 | Seed |
Round details for Altos Ventures
Amounts, full round histories and every co-investor in Altos Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
15 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| AfterQuery develops and provides training data for artificial intelligence models, capturing expert thinking and decision-making processes. | AI & Machine LearningEnterprise Software | Apr 2026Series A | Funding round | |
| AiderX provides a cloud-native retail media platform for advertising | Media & EntertainmentE-commerce & Marketplaces | Jan 2026Seed | Funding round | |
| Amae Health delivers precision medicine and integrated care for complex mental health conditions | Healthcare & Biotech | Nov 2025Series B | Funding round | |
| Bonfire Studios has a team and hires people for various openings | Enterprise SoftwareGaming | Jan 2025Series B | Funding round | |
| The company sells various products, including skincare items and coffee, through its online platform. | E-commerce & MarketplacesConsumer | Jan 2026Seed | Funding round | |
| Candex provides a platform for businesses to engage, track, and pay for goods and services | FintechE-commerce & Marketplaces | Mar 2026Series C+ | Funding round | |
| The company operates an online platform for buying and selling used fashion products. | E-commerce & MarketplacesConsumer | Sept 2025Series B | Funding round | |
| General Analysis provides security solutions for companies using artificial intelligence | CybersecurityAI & Machine Learning | Apr 2026Seed | Funding round | |
| MarqVision detects and removes counterfeit listings, impersonators, pirated content, and unauthorized sellers across various platforms and traces the sellers behind them. | AI & Machine LearningCybersecurity | Sept 2025Series B | Funding round | |
| Permitflow provides construction permitting software | Real Estate & ConstructionAI & Machine Learning | Dec 2025Series B | Funding round | |
| PURESPACE removes ethylene to prevent premature ripening of fresh produce. | Food & Agriculture | Dec 2025Series A | Funding round | |
| Quartr provides AI infrastructure for company research | FintechAI & Machine Learning | Jul 2026Series C+ | Funding round | |
| Soraban develops an AI-powered tax workflow platform for accounting firms | FintechAI & Machine Learning | Aug 2025Series A | Funding round | |
| UNASTELLA develops and launches rockets | AI & Machine LearningAI & Machine Learning | Jun 2026Series B | Funding round | |
| The company provides AI services for patent data analysis and translation | AI & Machine LearningLegal & Compliance | Jul 2026Series B | Funding round |
About this data
site last read 5 Nov 2026- Site
- altos.vc
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 1 Jan 2025
- Companies checked
- 15
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.
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