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Mayfield Fund

North America, California, United States, Menlo Park

Description

Mayfield Fund is a distinguished early-stage venture capital firm, founded in 1969, making it one of the longest-standing VC firms in Silicon Valley. With a rich history spanning over five decades, Mayfield has consistently focused on partnering with entrepreneurs from the earliest stages, often at the seed or Series A rounds. The firm's investment thesis centers on 'People-First Investing,' emphasizing the importance of visionary founders and strong teams. Mayfield's portfolio reflects a strategic focus on transformative technologies across several key sectors, including enterprise software, deep technology, and increasingly, companies addressing human and planetary health challenges.

Over its extensive history, Mayfield has raised numerous funds, demonstrating sustained commitment to early-stage innovation. For instance, in 2022, the firm announced Mayfield XVII, a $525 million fund, alongside Mayfield Select II, a $150 million fund, bringing their total capital raised to over $7 billion across all funds. This substantial capital base allows Mayfield to provide significant support to its portfolio companies, not just through initial funding but also through follow-on rounds as they scale. The firm prides itself on its hands-on approach, leveraging its deep network and operational expertise to help founders navigate critical growth phases.

Mayfield's investment strategy is characterized by its commitment to backing disruptive ideas that have the potential to create new markets or redefine existing ones. Their portfolio includes notable successes across various technology cycles, from foundational enterprise software to cutting-edge AI and biotech solutions. The firm typically leads or co-leads early-stage rounds, providing capital and strategic guidance to help companies achieve product-market fit and accelerate their growth trajectories. Their long-term perspective and focus on foundational technologies underscore their role as a significant player in the early-stage venture ecosystem.

Investor Profile

Mayfield Fund has backed more than 698 startups, with 25 new investments in the last 12 months alone. The firm has led 215 rounds, about 31% of its total and boasts 195 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Series B, Series A, Series C rounds (top funding stages).
  • Majority of deals are located in United States, India, China.
  • Strong thematic focus on Software, Enterprise Software, Internet.
  • Led 15 rounds in the past year.
  • Typical check size: $1M – $15M.

Stage Focus

  • Series B (24%)
  • Series A (24%)
  • Series C (16%)
  • Series Unknown (13%)
  • Seed (9%)
  • Series D (6%)
  • Series E (3%)
  • Series F (1%)
  • Undisclosed (1%)
  • Pre Seed (1%)

Country Focus

  • United States (85%)
  • India (10%)
  • China (2%)
  • United Kingdom (2%)

Industry Focus

  • Software
  • Enterprise Software
  • Internet
  • Information Technology
  • Saas
  • E-commerce
  • Artificial Intelligence (Ai)
  • Manufacturing
  • Mobile
  • Health Care
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Mayfield Fund frequently co-invest with?

Sequoia Capital
North America, California, United States, Menlo Park
Co-Investments: 18
Kleiner Perkins
North America, California, United States, Menlo Park
Co-Investments: 24
New Enterprise Associates
North America, California, United States, Menlo Park
Co-Investments: 19
GSR Ventures
North America, California, United States, Menlo Park
Co-Investments: 17
Norwest Venture Partners
North America, California, United States, Palo Alto
Co-Investments: 19
Foundation Capital
North America, California, United States, Palo Alto
Co-Investments: 17
Trinity Ventures
North America, California, United States, Menlo Park
Co-Investments: 28
U.S. Venture Partners
North America, California, United States, Menlo Park
Co-Investments: 25
Accel
North America, California, United States, Palo Alto
Co-Investments: 28
Redpoint
North America, California, United States, Menlo Park
Co-Investments: 17

Which angels does Mayfield Fund often collaborate with?

TW
North America, California, United States, San Francisco
Shared Deals: 5
RM
North America, California, United States, San Francisco
Shared Deals: 8
PC
North America, California, United States, Los Angeles
Shared Deals: 4
KH
North America, California, United States, San Francisco
Shared Deals: 2
EW
North America, California, United States, San Francisco
Shared Deals: 2
NR
North America, California, United States, San Francisco
Shared Deals: 4
CP
North America, California, United States
Shared Deals: 2
BH
North America, California, United States, Palo Alto
Shared Deals: 2
MM
North America, California, United States, Santa Clara
Shared Deals: 2
SP
North America, California, United States, San Francisco
Shared Deals: 3

What are some of recent deals done by Mayfield Fund?

Multiply

San Francisco, California, United States

Multiply is the hybrid AI + human media agency specializing in B2B paid advertising on platforms.

AdvertisingArtificial Intelligence (AI)B2BInformation Technology
SeedMar 18, 2026
Amount Raised: $9,500,000
Frore Systems

San Jose, California, United States

Frore Systems develops and supplies advanced thermal management technologies for electronic systems.

Consumer ElectronicsManufacturingMechanical EngineeringSemiconductor
Series DMar 16, 2026
Amount Raised: $143,000,000
Rhoda AI

Palo Alto, California, United States

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)Business IntelligenceFoundational AIIntelligent SystemsReal TimeRobotics
Series AMar 10, 2026
Amount Raised: $450,000,000
Pensieve

San Francisco, California, United States

Pensieve is an AI educational platform that handles grading and provides feedback to colleges with lectures.

Artificial Intelligence (AI)EducationTraining
SeedFeb 24, 2026
Amount Raised: $6,870,000
Kana

San Francisco, California, United States

Kana's aim is to envision a future in which AI and marketers collaborate to provide each consumer with a flawless, customized experience.

Customer ServiceMarketing
SeedFeb 18, 2026
Amount Raised: $15,000,000
SambaNova

Palo Alto, California, United States

SambaNova is an AI hardware and software company that specializes in providing infrastructure for AI and machine learning applications.

AI InfrastructureAnalyticsArtificial Intelligence (AI)Machine LearningSemiconductorSoftware
Series EFeb 9, 2026
Amount Raised: $350,000,000
Gruve

San Francisco, California, United States

Gruve is a startup focused on transforming AI strategies into tangible outcomes for enterprises.

Artificial Intelligence (AI)Machine LearningSoftware
Series AFeb 3, 2026
Amount Raised: $50,000,000
Upscale AI

Santa Clara, California, United States

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

Artificial Intelligence (AI)Information TechnologyNetwork Security
Series AJan 21, 2026
Amount Raised: $200,000,000
vijil

Menlo Park, California, United States

Vijil is an AI software startup that helps developers build and operate intelligent agents that people can trust.

Artificial Intelligence (AI)Software
Series ANov 25, 2025
Amount Raised: $17,000,000
Opti

New City, New York, United States

Opti is an AI-powered identification protection system that uses domain-trained models to automate enterprise IAM.

Artificial Intelligence (AI)Security
SeedNov 24, 2025
Amount Raised: $20,000,000

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