Investors / Maniac Ventures
Maniac Ventures
Venture capital
Maniac Ventures is a venture fund that writes first checks to founders it describes as obsessed paradigm builders. It focuses on the frontier of computing, including brain-computer interfaces, novel silicon, reversible compute, decentralized AI training, AI-native systems, and other science-fiction-sounding hardware and physics.
Invests inAI & Machine LearningHealthcare & BiotechIndustrial & Manufacturing
In its own wordsbrain-computer interfacesemiconductorsreversible computingdecentralized aiai-native softwaredeep tech
Your fit with Maniac Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsManiac Ventures lists 20 checked portfolio companies on its own site and is named in 1 funding round. Its most frequent entry is Pre-seed, 100% of the companies with a known first round. Its largest themes are AI & Machine Learning (37%), Healthcare & Biotech (23%) and Industrial & Manufacturing (17%). 94% of its companies are based in United States. It invests most often alongside General Catalyst, Andreessen Horowitz and Y Combinator.
Counts come from funding rounds that name Maniac Ventures, 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 Maniac Ventures' whole history. Rounds on record name 1 company; its own site lists 20. 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 roundManiac Ventures does not state its stages on its site, so only what it does is shown.
Show as a table
| Value | |
|---|---|
| Pre-seed | 100% |
| Seed | 0% |
| 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 | 53th | 21 companies |
| Recent activity | 59th | 1 rounds in 12 months |
| Early stage | 100th | 100% of entries at pre-seed or seed |
| Evidence | 63th | 5% of companies confirmed by a round |
| Sector focus | 68th | 37% in its largest sector |
| Reach | 42th | 2 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 37% | 18% |
| Healthcare & Biotech | 23% | 15% |
| Industrial & Manufacturing | 17% | 7% |
| Legal & Compliance | 7% | 2% |
| Enterprise Software | 7% | 8% |
| Fintech | 3% | 12% |
| Education | 3% | 7% |
| Cybersecurity | 3% | 4% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| General Catalyst | 4 |
| Andreessen Horowitz | 3 |
| Y Combinator | 3 |
| Accel | 2 |
| Ascend | 2 |
| BoxGroup | 2 |
| Coatue | 2 |
| Discipulus Ventures | 2 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers20100%
- 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 togetherAll co-investors or Compare portfolios with General Catalyst
Compare Maniac 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 Maniac Ventures| Date | Company | Stage |
|---|---|---|
| 30 Sept 2026 | Pre-Seed |
Round details for Maniac Ventures
Amounts, full round histories and every co-investor in Maniac Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
20 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| The company is building autonomous surgical robots | Healthcare & Biotech | Sept 2026Pre-Seed | Page + round | |
| Arch provides data management and reporting services for private markets investments | FintechIndustrial & Manufacturing | Portfolio page | ||
| Athanor builds infrastructure to prove or disprove computational claims about programs, circuits, or protocols. | AI & Machine LearningCybersecurity | Portfolio page | ||
| Bench IQ provides an AI-powered service that allows attorneys to uncover the reasons behind their judges' rulings | Legal & ComplianceAI & Machine Learning | Portfolio page | ||
| Bland automates calls for companies, especially in regulated industries such as healthcare and finance. | AI & Machine LearningEnterprise Software | Portfolio page | ||
| The company manufactures metal components for critical industries | Industrial & Manufacturing | Portfolio page | ||
| Dirac develops and provides an AI build platform called BuildOS that turns CAD into work instructions, MBOM, and BOP for manufacturers. | AI & Machine LearningIndustrial & Manufacturing | Portfolio page | ||
| Eyebot provides precision eyeglass prescriptions using its technology | Healthcare & Biotech | Portfolio page | ||
| Flyby Robotics designs and assembles drones for enterprise, industry, and research operations. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Forus automates the process of prior authorization and medication access for patients, connecting doctors, pharmacies, payers, and biopharma companies. | Healthcare & Biotech | Portfolio page | ||
| Olive creates production-ready business intelligence tools in minutes, connected to a company's data. | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Portfolio page | ||||
| Harvey develops AI software for legal and professional services | Legal & ComplianceAI & Machine Learning | Portfolio page | ||
| Lightcell develops an engine that uses light to generate electricity | EducationIndustrial & Manufacturing | Portfolio page | ||
| Rainmaker modernizes the process of cloud seeding through an integrated system of advanced radar, unmanned aircraft, and a weather awareness platform to make freshwater available to all | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| The company provides metal parts and welded assemblies manufacturing services, including cutting, bending, tapping, and finishing. | Industrial & Manufacturing | Portfolio page | ||
| Sabi develops a brain-computer interface cap that can read brain signals and understand thoughts and attempted speech. | Healthcare & BiotechAI & Machine Learning | Portfolio page | ||
| Scanbase develops algorithms and integrates systems to help convert photos of rapid diagnostic tests into results | Healthcare & Biotech | Portfolio page | ||
| Thatch provides a health benefits platform that allows employees to choose their own care and benefits within a set budget | Healthcare & Biotech | Portfolio page | ||
| Yuzu Health provides administration services for health plans | Healthcare & Biotech | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- maniacventures.com
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 30 Sept 2026
- Companies checked
- 20
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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