Investors / Zero Index
Zero Index
Venture capital
Zero Index is a venture fund that makes first checks into early-stage companies, typically before a round has momentum. It describes itself as built by operators who have founded and sold three companies and now back founders through product launch, hiring, go-to-market and exits.
Invests inAI & Machine Learning
In its own wordsaisaasearly-stagefounder-operator
Your fit with Zero Index
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsZero Index lists 61 checked portfolio companies on its own site and is named in 1 funding round. Its most frequent entry is Seed, 100% of the companies with a known first round. Its largest themes are AI & Machine Learning (30%), Enterprise Software (10%) and Healthcare & Biotech (8%). 92% of its companies are based in United States. It invests most often alongside Y Combinator, Transpose Platform and Eight Capital.
Counts come from funding rounds that name Zero Index, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Zero Index's whole history. Rounds on record name 1 company; its own site lists 61. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 100% |
| Series A | 0% |
| Series B | 0% |
| Growth | 0% |
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 | 0 | 0 |
| '26 | 1 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 88th | 61 companies |
| Recent activity | 59th | 1 rounds in 12 months |
| Early stage | 100th | 100% of entries at pre-seed or seed |
| Evidence | 53th | 2% of companies confirmed by a round |
| Sector focus | 51th | 30% 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 | 30% | 18% |
| Enterprise Software | 10% | 8% |
| Healthcare & Biotech | 8% | 15% |
| Cybersecurity | 8% | 4% |
| Industrial & Manufacturing | 8% | 7% |
| Fintech | 5% | 12% |
| Robotics & Hardware | 5% | 1% |
| Real Estate & Construction | 5% | 3% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Y Combinator | 49 |
| Transpose Platform | 14 |
| Eight Capital | 8 |
| Spot VC | 8 |
| Founder Factor | 7 |
| Orange Collective | 5 |
| Scribble Ventures | 5 |
| Script Capital | 5 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers6098%
- No longer answers00%
- Points to another company12%
- 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 Zero Index 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 Zero Index| Date | Company | Stage |
|---|---|---|
| 26 May 2026 | Seed |
Round details for Zero Index
Amounts, full round histories and every co-investor in Zero Index's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
61 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Adialante delivers diagnostic-grade MRI machines to clinics on a mobile basis for a flat fee per scan | Healthcare & Biotech | Portfolio page | ||
| Applied Electrodynamics develops and sells a camera that can see through walls and map mechanical, electrical, and plumbing systems with millimeter accuracy. | Industrial & ManufacturingCybersecurity | Portfolio page | ||
| Agency Tool Company provides infrastructure for robotics teams to build, deploy, manage, and operate real-world robots | Robotics & HardwareAI & Machine Learning | May 2026Seed | Page + round | |
| AgentPhone provides phone numbers for AI agents to handle voice and messages through a unified webhook. | AI & Machine LearningCybersecurity | Portfolio page | ||
| AirGarage manages parking assets for property owners, providing data-driven insights and solutions to optimize operations and revenue | Real Estate & ConstructionMobility & Logistics | Portfolio page | ||
| Aktoria Robotics provides software and operators for robots and collects data from them. | Robotics & HardwareAI & Machine Learning | Portfolio page | ||
| Allia Health provides an operating system for behavioral health practices, offering a platform for intake, care, documentation, prescribing, and billing | Healthcare & Biotech | Portfolio page | ||
| Anduril Industries specializes in advanced autonomous systems for defense and commercial mission sets. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Apollo Atomics develops nuclear power systems. | EducationIndustrial & Manufacturing | Portfolio page | ||
| Arga Labs provides real-world sandboxes for testing and training AI agents. | AI & Machine LearningCybersecurity | Portfolio page | ||
| Arzana automates enterprise resource planning (ERP) for manufacturers | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Asendia AI develops an AI recruiter platform for faster and smarter hiring, especially for staffing agencies and enterprises. | AI & Machine LearningHuman Resources | Portfolio page | ||
| The company uses AI to search for treatments for rare diseases in the corpus of biomedical knowledge. | Healthcare & Biotech | Portfolio page | ||
| Atomarine develops and deploys offshore power and compute infrastructure platforms | EducationIndustrial & Manufacturing | Portfolio page | ||
| Avoca Systems provides operational intelligence for radiology networks, optimizing and automating clinic operations and patient journeys. | Healthcare & Biotech | Portfolio page | ||
| Mason combines purpose-built devices with a powerful device management console, giving complete control over IoT hardware fleets. | Enterprise SoftwareIndustrial & Manufacturing | Portfolio page | ||
| Callab AI develops and provides AI-powered customer service platforms for businesses to manage high volumes of customer calls and messages. | AI & Machine LearningCybersecurity | Portfolio page | ||
| CharacterQuilt provides AI-powered marketing services for B2B teams, creating and launching campaigns and monitoring results. | AI & Machine LearningMedia & Entertainment | Portfolio page | ||
| Chargebee provides billing and monetization services for SaaS and AI companies | FintechSpace & Defense | Portfolio page | ||
| Clever provides an identity platform for education to manage access and security for schools and students. | EducationCybersecurity | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- zeroindex.vc
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 26 May 2026
- Companies checked
- 61
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 Zero Index's profile as data
Pull Zero Index'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.
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