Investors / Preston-Werner Ventures
Preston-Werner Ventures
Venture capital
Preston-Werner Ventures is an early-stage venture fund that invests $500K to $3M+ in technology founders. It focuses on platforms, tools, and infrastructure that use code, models, and data to turn frontier science and engineering into near-term products.
Invests inAI & Machine Learning
In its own wordsdeveloper toolsinfrastructureaiplatformsfrontier sciencedata
Your fit with Preston-Werner Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsPreston-Werner Ventures lists 74 checked portfolio companies on its own site and is named in 7 funding rounds. Its most frequent entry is Seed, 60% of the companies with a known first round. Its largest themes are AI & Machine Learning (31%), Enterprise Software (14%) and Cybersecurity (11%). 86% of its companies are based in United States. It invests most often alongside Andreessen Horowitz, Accel and Y Combinator.
Counts come from funding rounds that name Preston-Werner 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 Preston-Werner Ventures' whole history. Rounds on record name 6 companies; its own site lists 74. 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 | 60% |
| Series A | 20% |
| Series B | 20% |
| 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 | 1 | 0 |
| '24 | 2 | 0 |
| '25 | 4 | 0 |
| '26 | 0 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 92th | 74 companies |
| Recent activity | 46th | 0 rounds in 12 months |
| Early stage | 76th | 60% of entries at pre-seed or seed |
| Evidence | 60th | 4% of companies confirmed by a round |
| Sector focus | 54th | 31% in its largest sector |
| Reach | 88th | 7 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 31% | 18% |
| Enterprise Software | 14% | 8% |
| Cybersecurity | 11% | 4% |
| Fintech | 7% | 12% |
| Developer Tools | 6% | 0% |
| Industrial & Manufacturing | 5% | 7% |
| Space & Defense | 4% | 3% |
| Education | 4% | 7% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Andreessen Horowitz | 14 |
| Accel | 8 |
| Y Combinator | 8 |
| Heavybit | 6 |
| Kleiner Perkins | 5 |
| Redpoint Ventures | 5 |
| SV Angel | 5 |
| CRV | 4 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers7297%
- No longer answers00%
- Points to another company23%
- 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 Andreessen Horowitz
Compare Preston-Werner 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 Preston-Werner Ventures| Date | Company | Stage |
|---|---|---|
| 22 Sept 2025 | Seed | |
| 17 Sept 2025 | Seed | |
| 20 Aug 2025 | Series B | |
| 4 Mar 2025 | Series A | |
| 26 Jul 2024 | Seed | |
| 26 Jul 2024 | Round | |
| 1 Aug 2023 | Seed |
Round details for Preston-Werner Ventures
Amounts, full round histories and every co-investor in Preston-Werner Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
74 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Aalo Atomics builds mass-manufactured nuclear power plants designed to power data centers and other applications | EducationIndustrial & Manufacturing | Portfolio page | ||
| Aera Farms makes a smart indoor farming appliance that grows fresh food anywhere, year-round. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
CybersecurityAI & Machine Learning | Portfolio page | |||
| Alinia Ai helps regulated institutions comply with legal controls by translating them into automated supervision and enforcement for AI agents | AI & Machine LearningLegal & Compliance | Portfolio page | ||
| Astranis designs, manufactures, tests, and operates geostationary orbit satellites for commercial and government customers. | Space & DefenseAI & Machine Learning | Portfolio page | ||
| Atuin syncs, searches, and backs up shell history with end-to-end encryption and provides AI assistance within the terminal. | AI & Machine LearningCybersecurity | Portfolio page | ||
| BETA Technologies is an aerospace company manufacturing electric flight products | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| BuildPass brings preconstruction, finance and site operations onto one platform, from the first estimate to the final payment | Real Estate & Construction | Portfolio page | ||
| Carta provides an end-to-end suite for managing private capital, including equity management, fund administration, and legal operations. | FintechLegal & Compliance | Portfolio page | ||
| Commonwealth Fusion Systems is developing commercial fusion energy systems using high-temperature superconducting magnets and tokamak-based configurations. | EducationIndustrial & Manufacturing | Portfolio page | ||
| Cleanlab helps companies deploy trustworthy AI by detecting and remediating incorrect responses from AI agents | AI & Machine LearningCybersecurity | Portfolio page | ||
| Clerk provides authentication and user management services for modern applications | CybersecuritySpace & Defense | Portfolio page | ||
| Command Code builds software, repairs tool calls on every model, and continuously learns the user's coding taste. | AI & Machine LearningDeveloper Tools | Portfolio page | ||
| Commutator Studios improves the performance of quantum applications by automatically finding the best execution parameters for different quantum computers | FintechHealthcare & Biotech | Portfolio page | ||
| Cursor provides an AI coding agent for building ambitious software | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Dashmote provides data and AI solutions for hospitality sales and food delivery services | Food & AgricultureAI & Machine Learning | Mar 2025Series A | Funding round | |
| The company produces and sells reusable aluminum water bottles. | ConsumerSpace & Defense | Portfolio page | ||
| Earthmover provides a cloud-native tensor storage engine and other tools for managing and analyzing scientific data. | AI & Machine LearningClimate & Energy | Sept 2025Seed | Page + round | |
| Elicit helps researchers by generating structured research reports with citations and searching through millions of academic papers | AI & Machine LearningEducation | Portfolio page | ||
| The company provides a full stack for generative media, including model APIs, serverless compute, and infrastructure for training and deploying AI models. | AI & Machine LearningMedia & Entertainment | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- pwv.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 1 Aug 2023
- Companies checked
- 74
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 Preston-Werner Ventures' profile as data
Pull Preston-Werner Ventures' 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/pwv.com
# also
GET /v1/firms/pwv.com/portfolio
GET /v1/firms/pwv.com/coinvestors
GET /v1/firms/pwv.com/news