Investors / United States / Mayfield
Mayfield
Venture capital · Menlo Park, CA, United States · North America
Mayfield is an early-stage venture capital firm that invests in founders, often as their first institutional investor. The firm reports a track record of 120 IPOs and 225+ M&As.
Invests inAI & Machine Learning
In its own wordsaiearly-stageventure capital
Your fit with Mayfield
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See how your round matches what it backs, point by point.
Or find every investor that fitsMayfield lists 132 checked portfolio companies on its own site and is named in 38 funding rounds, 13 of them as lead. Its most frequent entry is Series A, 39% of the companies with a known first round. Its largest themes are AI & Machine Learning (34%), Cybersecurity (11%) and Enterprise Software (9%). 85% of its companies are based in United States. It invests most often alongside Celesta Capital, Premji Invest and Y Combinator.
Counts come from funding rounds that name Mayfield, 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 Mayfield's whole history. Rounds on record name 33 companies; its own site lists 132. 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 | 3% |
| Seed | 36% |
| Series A | 39% |
| Series B | 10% |
| Growth | 13% |
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 | 1 | 0 |
| '23 | 0 | 0 |
| '24 | 1 | 1 |
| '25 | 17 | 6 |
| '26 | 19 | 6 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 97th | 131 companies |
| Recent activity | 99th | 21 rounds in 12 months |
| Early stage | 65th | 39% of entries at pre-seed or seed |
| Evidence | 87th | 16% of companies confirmed by a round |
| Sector focus | 63th | 34% in its largest sector |
| Reach | 78th | 5 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 34% | 18% |
| Cybersecurity | 11% | 4% |
| Enterprise Software | 9% | 8% |
| Healthcare & Biotech | 8% | 15% |
| Fintech | 7% | 12% |
| Education | 5% | 7% |
| Space & Defense | 4% | 3% |
| E-commerce & Marketplaces | 4% | 6% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Celesta Capital | 8 |
| Premji Invest | 8 |
| Y Combinator | 8 |
| Uncork Capital | 7 |
| Cisco Investments | 6 |
| Salesforce Ventures | 6 |
| Sapphire Ventures | 6 |
| Accel | 5 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers12796%
- No longer answers00%
- Points to another company54%
- 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 Mayfield 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 Mayfield| Date | Company | Stage |
|---|---|---|
| 22 Oct 2026 | Series A | |
| 23 Sept 2026 | Series C+ | |
| 17 Sept 2026 | Pre-Seed Led | |
| 18 Aug 2026 | Series A | |
| 6 Jul 2026 | Series A | |
| 24 Jun 2026 | Seed Led | |
| 22 Jun 2026 | Series A | |
| 15 Jun 2026 | Series C+ |
Round details for Mayfield
Amounts, full round histories and every co-investor in Mayfield's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
132 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Agnikul develops and launches custom orbital vehicles for private space missions | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| AI Fabrik builds an edge inference delivery network for high-performance tokens and real-time AI workloads | AI & Machine LearningEnterprise Software | Portfolio page | ||
 Janrainakamai.com | Portfolio page | |||
| Alchemy provides blockchain infrastructure for developers | FintechCrypto & Web3 | Portfolio page | ||
| Alif Semiconductor produces microcontrollers and fusion processors | AI & Machine LearningSpace & Defense | Portfolio page | ||
| Portfolio page | ||||
| Amagi provides cloud-based media operations and streaming services for broadcasters, content owners, and streaming platforms. | Media & EntertainmentAI & Machine Learning | Portfolio page | ||
| Amgen operates in the biotechnology industry, conducting research and development, manufacturing, and distributing various therapies and products. | Healthcare & Biotech | Portfolio page | ||
| Applied Cognition develops treatments and measurements for the glymphatic system to prevent and treat diseases such as Alzheimer's and Parkinson's. | Healthcare & Biotech | Portfolio page | ||
| Portfolio page | ||||
| The company provides AI-powered solutions for construction teams to bid and estimate jobs with greater accuracy | AI & Machine LearningReal Estate & Construction | Nov 2025Series B | Funding round | |
| AttoTude develops a new interconnect technology for data centers to support high-speed parallel processing and supercomputing applications | AI & Machine LearningCybersecurity | Jun 2026Series C+ | Page + round | |
AI & Machine LearningRobotics & Hardware | Apr 2025Series C+ · 2 rounds | Funding round | ||
| Aurascape secures employee AI use, helps teams build agents safely, and protects AI agents running in production with real-time visibility, policy enforcement, and data protection. | AI & Machine LearningCybersecurity | Apr 2025Series A | Page + round | |
| Bespoke Labs builds RL environments and infrastructure to let frontier labs and enterprises train long-horizon agents for production | AI & Machine Learning | Jul 2026Series A | Page + round | |
| BigPanda uses AI to automate IT detection, triage, and resolution, improving operational efficiency and reducing downtime and costs. | AI & Machine LearningCybersecurity | Portfolio page | ||
| Breakthrough Ventures empowers young, student founders from all backgrounds by providing capital, mentorship, and resources to transform bold ideas into thriving ventures. | FintechEducation | Feb 2026Round | Funding round | |
| Brighter connects patients with healthcare providers and helps providers manage their online presence | Healthcare & Biotech | Portfolio page | ||
CybersecurityAI & Machine Learning | Portfolio page | |||
| Centrify provides a unified identity security platform that protects human, machine and AI identities across an enterprise. | Cybersecurity | Portfolio page |
About this data
site last read 12 Nov 2026- Site
- mayfield.com
- Last read
- 12 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 1 Sept 2022
- Companies checked
- 132
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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