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Mayfield Fund — Portfolio, Page 2

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

201
Companies
$9.3B
Total invested
$48.3M
Avg. check
59
Industries
Artificial Intelligence (AI) 14Software 6Information Technology 5Cloud Security 4Cyber Security 4AI Infrastructure 3+53 more
Founder contacts

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Portfolio companies

Showing 25–48 of 201
Upscale AI
June 2026

Upscale AI redefines networking with purpose-built solutions for high-performance compute.

AI Infrastructure · Santa Clara$190.0M Series A
Roost AI
June 2022

Roost.ai is an end-to-end and comprehensive testing platform driven by chatGPT and generative AI.

Artificial Intelligence (AI) · San Jose$1.0M Convertible Note
Endpoint Health
June 2022

Endpoint Health is a precision immunology company

Health Care · Palo AltoSeries A
AttoTude
June 2026

AttoTude develops interconnect technology for artificial intelligence and hyperscale data center environments.

Artificial Intelligence (AI) · Menlo Park$52.0M Series C
Cube
June 2022

Cube is a spreadsheet-native platform that focuses on meeting strategic finance teams for everyday workflows.

FinTech · New York$30.0M Series B
Sekai
June 2026

Sekai is an AI-powered interactive content platform that enables users to create, play, remix, and share mini-apps without coding.

Artificial Intelligence (AI) · Sunnyvale$20.0M Series A
Outreach
June 2022

Outreach is a sales engagement platform that uses AI for predictive analytics as it relates to sales.

Artificial Intelligence (AI) · SeattleSecondary Market
Lumilens
May 2025

Lumilens creates photonics products designed for high-performance computing.

AI Infrastructure · Belmont$9.2M Series B
Chi Botanic
May 2023

Chi Botanic is a cellular agriculture company that provides a synthetic biology pipeline to leverage the power of the plant cell.

Agriculture · Alameda$175K Grant
Qwiet
May 2022

Qwiet is an IT firm that developes an AI -powered AppSec platform.

Artificial Intelligence (AI) · San Jose$29.0M Series C
Exaforce
May 2026

Exaforce is a cybersecurity company that develops an agentic security operations and modern SIEM platform for enterprise environments.

Agentic AI · San Jose$125.0M Series B
NeuBird
April 2026

NeuBird is a first-of-its-kind cloud-based generative operations platform for enterprises.

Cloud Data Services · Redwood City$19.3M Venture - Series Unknown
OpenLight
April 2026

OpenLight is a manufacturing company that specializes in custom photonic application and circuit chip design.

Electronic Design Automation (EDA) · Goleta$50.0M Series A
OwnID
April 2022

OwnID helps enterprises empower consumers to register, login, and checkout with biometrics - FaceID & TouchID - all without a password.

Information Services · San Francisco$6.2M Seed
Mammoth Biosciences
April 2024

Mammoth Biosciences develops novel CRISPR applications for disease detection, research, agriculture, biodefense, and more.

Biotechnology · San Francisco$95.0M Corporate Round
New Culture
April 2025

New Culture is a food and beverage company that focuses on revolutionizing how cheese is made.

Food and Beverage · San FranciscoSeries A
Auradine
April 2025

Auradine provides web infrastructure solutions encompassing blockchain, artificial intelligence, and privacy technologies.

Artificial Intelligence (AI) · Santa Clara$138.0M Series C
Cognichip
April 2026

Cognichip is an AI-first deep tech company focused on transforming the semiconductor industry by revolutionizing how chips are designed.

AI Infrastructure · Redwood City$60.0M Series A
Tonal
April 2023

Tonal is a smart home gym that uses artificial intelligence and coaching to provide strength training.

Artificial Intelligence (AI) · San Francisco$130.0M Venture - Series Unknown
WorkSpan
March 2025

WorkSpan is the #1 ecosystem management network that empowers companies to turbocharge and scale their co-sell revenue growth.

Computer · San BernardinoSeries D
Alif Semiconductor
March 2022

Alif Semiconductor develops AI-enabled microcontrollers and embedded processors for edge computing, IoT, automotive, industrial devices.

Artificial Intelligence (AI) · Pleasanton$113.4M Series B
Securiti
March 2023

Securiti is the pioneer of the DataAI Command Center, a centralized platform that enables the safe use of data and GenAI.

Artificial Intelligence (AI) · San JoseVenture - Series Unknown
Balbix
March 2022

Balbix offers an AI-native cyber risk and exposure management platform to give security teams a real-time view of their attack surface.

Artificial Intelligence (AI) · San Jose$70.0M Series C
Rhoda AI
March 2026

Rhoda AI is a tech company that develops a class of robot foundation models designed to bring general intelligence into the physical world.

Artificial Intelligence (AI) · Palo Alto$450.0M Series A

Where Mayfield Fund invests

Artificial Intelligence (AI)14
Software6
Information Technology5
Cloud Security4
Cyber Security4
AI Infrastructure3

About Mayfield Fund's portfolio

How many companies has Mayfield Fund invested in?▸

Mayfield Fund has invested in 201 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Mayfield Fund invest in?▸

Mayfield Fund's top investment sectors include Artificial Intelligence (AI), Software, Information Technology, Cloud Security, Cyber Security. The firm invests across 59 different industry categories.

What is Mayfield Fund's largest investment?▸

Among tracked funding rounds, Rhoda AI received $450.0M in a Series A round. Mayfield Fund's total known invested capital is $9.3B.

What is the average investment size for Mayfield Fund?▸

Mayfield Fund's average investment size is $48.3M across its portfolio of 201 companies.

What are Mayfield Fund's most recent investments?▸

Recent Mayfield Fund portfolio additions include Upscale AI, Roost AI, Endpoint Health, AttoTude, Cube. These companies were founded in 2020 or later.

Reach the founders behind these 201 companies
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