Mayfield Fund portfolio

Mayfield Fund has 29 portfolio companies on record at Recent Funding, with 6 investments in the last 12 months.

Website: mayfield.com.

Type: Venture capital.

Portfolio on Recent Funding: 29.

Deals, last 12 months: 6.

Rounds led: 8 of 31.

Capital in their rounds: $2.5B.

Latest deal: Upscale AI · Jun 22, 2026.

About this page

It is a venture capital firm based in Menlo Park, US, founded in 1969. It led 8 of the 31 rounds it joined. Its most recent investment on record is Upscale AI's $190M Series A round in June 2026, alongside Nvidia, Seligman Ventures, Tiger Global Management and 6 others. By category, its portfolio leans toward AI infrastructure and compute (7) and Developer tools and cloud (6). It has co-invested with StepStone Group, Khosla Ventures and Battery Ventures, most often StepStone Group (5 rounds).

About Mayfield Fund

Firm type: Venture capital.

Headquarters: Menlo Park, US.

Founded: 1969.

Stages: Pre-Seed, Seed, Series A, Series B.

Sectors: AI & Machine Learning, Consumer, Data & Infrastructure, Deep Tech, Developer Tools, Direct to Consumer, E-commerce, Enterprise Software, Marketplaces, Semiconductors, Social.

Check size: $500K to $12M.

Leads rounds: Yes.

Portfolio companies: 192.

Exits: 41.

Rounds led: 40.

Fund returns

Fund	Vintage	Size	Net IRR	TVPI	DPI	As of
Mayfield XVII, a Delaware Limited Partnership	2024	—	—	1.05x	0.00x	Jun 30, 2025
Mayfield Select III	2023	—	—	1.05x	0.00x	Sep 30, 2025
Mayfield XVII	2023	—	—	1.22x	0.00x	Sep 30, 2025
Mayfield Select II	2021	—	14.9%	1.37x	0.00x	Sep 30, 2025
Mayfield Select IIr	2021	—	16.6%	1.40x	—	Mar 31, 2025
Mayfield XVI	2021	—	18.4%	1.52x	0.00x	Sep 30, 2025
Mayfield Select	2017	—	15.3%	1.75x	1.14x	Sep 30, 2025
Mayfield XV	2017	—	15.8%	2.19x	0.39x	Sep 30, 2025
Mayfield XIV	2013	—	19.8%	3.80x	2.75x	Sep 30, 2025
Mayfield VIII	1995	—	47.9%	3.12x	3.12x	Jun 30, 2020
Mayfield VII	1992	—	25.0%	2.86x	2.86x	Jun 30, 2020
Mayfield VI	1988	—	26.9%	3.93x	3.93x	Jun 30, 2020
Mayfield V	1984	—	4.5%	1.30x	1.30x	Jun 30, 2020
Mayfield IV	1981	—	26.0%	2.63x	2.63x	Jun 30, 2020

Funds raised

Fund	Fund #	Size	Announced
MMayfield Fund	-	$750M	Apr 15, 2020 Yahoo Finance

What Mayfield Fund invests in

AI infrastructure and compute · 7 · 24%
Developer tools and cloud · 6 · 21%
AI agents · 6 · 21%
Cybersecurity · 5 · 17%
Robotics and hardware · 4 · 14%
Health and bio · 4 · 14%
Data and analytics · 3 · 10%
Education · 3 · 10%

Mayfield Fund recent investments

Company	Round	Date	Alongside
UUpscale AI	Series A · $190M	Jun 22, 2026	Nvidia, Seligman Ventures, Tiger Global Management +6
EExaforce	Series B+ · $125M	May 12, 2026	Khosla Ventures, Seligman Ventures, HarbourVest +2
RRhoda AI	Series A · $450M	Mar 11, 2026	Prelude, Khosla Ventures, Matter Venture Partners +6
SSambaNova	Series B+ · $350M	Feb 24, 2026	Vista Equity Partners (lead), Seligman Ventures, Intel Capital +7
GGruve	Series A · $50M	Feb 3, 2026	Cisco Investments, Acclimate Ventures, AIspace Ventures +1
UUpscale AI	Series A · $200M	Jan 21, 2026	Qualcomm Ventures, Samsung Catalyst Fund, Tiger Global Management (lead) +6
NNumeral	Series B+ · $35M · lead	Sep 18, 2025	Benchmark, Uncork Capital, Y Combinator +1
UUpscale AI	Seed · $100M · lead	Sep 17, 2025	Qualcomm Ventures, Stanford University, AIspace Ventures +6

How Mayfield Fund invests

Stage	Deals	Capital in rounds
Series B+	17 55%	$1.18B
Series A	11 35%	$1.18B
Seed	3 10%	$143.5M

Year	Deals	Capital in rounds
2015	1 3%	$16M
2017	1 3%	$23M
2018	2 6%	$30M
2019	3 10%	$126M
2020	2 6%	$115.15M
2022	5 16%	$352M
2023	2 6%	$29.35M
2024	2 6%	$20M
2025	7 23%	$428M
2026	6 19%	$1.36B

Mayfield Fund portfolio companies

UUpscale AI$190MSeries A · Jun 2026
EExaforce$125MSeries B+ · May 2026
RRhoda AI$450MSeries A · Mar 2026
SSambaNova$350MSeries B+ · Feb 2026
GGruve$50MSeries A · Feb 2026
NNumeral$35MSeries B+ · Sep 2025
CCognichip$33MSeed · May 2025
SSupio$60MSeries B+ · May 2025
AAurascape$50MSeries A · Apr 2025
RRetym$75MSeries B+ · Apr 2025
RRevefi$20MSeries A · Sep 2024
FFrore SystemsSeries B+ · May 2024
IInfinite Uptime$18.85MSeries B+ · May 2023
SSecuriti$75MSeries B+ · Oct 2022
UUnstoppable Domains$65MSeries A · Jul 2022
EEndpoint Health$52MSeries A · Jun 2022
MMirvie$60MSeries B+ · May 2022
TTonal$110MSeries B+ · Sep 2020
BBigPanda$50MSeries B+ · Nov 2019
QQventus$30MSeries B+ · May 2018
OOrbbacker
BBespoke Labsbacker
SScrunchbacker
HHello Havenbacker
HHang Ten Systemsbacker
LLumilensbacker
AAkeanabacker
KKiwicobacker
IInceptionbacker

Company	Round with Mayfield Fund	Total raised	Latest raise
UUpscale AI AI infrastructure and compute	Jun 22, 2026 Series A · $190M	$490M	Jun 22, 2026 Series A
EExaforce AI agents	May 12, 2026 Series B+ · $125M	$200M	May 12, 2026 Series B+
RRhoda AI	Mar 11, 2026 Series A · $450M	$450M	Mar 11, 2026 Series A
SSambaNova AI agents	Feb 24, 2026 Series B+ · $350M	$2.48B	Jul 12, 2026 Series B+
GGruve Cybersecurity	Feb 3, 2026 Series A · $50M	$50M	Feb 3, 2026 Series A
NNumeral Legal and compliance	Sep 18, 2025 Series B+ · $35M · lead	$153.5M	Sep 23, 2026 Series B+
CCognichip AI infrastructure and compute	May 15, 2025 Seed · $33M · lead	$93M	Apr 1, 2026 Series A
SSupio Sales and marketing	May 1, 2025 Series B+ · $60M	$85.1M	May 1, 2025 Series B+
AAurascape Cybersecurity	Apr 8, 2025 Series A · $50M · lead	$50M	Jun 1, 2026 Series A
RRetym AI infrastructure and compute	Apr 1, 2025 Series B+ · $75M	$75M	Nov 17, 2025 Series B+
RRevefi AI agents	Sep 4, 2024 Series A · $20M	$30.5M	Jul 17, 2026 Series A
FFrore Systems AI infrastructure and compute	May 29, 2024 Series B+	$243M	Mar 17, 2026 Series B+
IInfinite Uptime Manufacturing and industrial	May 22, 2023 Series B+ · $18.85M	$59M	Mar 11, 2025 Series B+
SSecuriti Legal and compliance	Oct 1, 2022 Series B+ · $75M	$156M	Nov 19, 2022 Series B+
UUnstoppable Domains Fintech	Jul 27, 2022 Series A · $65M	$65.73M	Jul 27, 2022 Series A
EEndpoint Health Health and bio	Jun 2, 2022 Series A · $52M · lead	$52M	Jun 2, 2022 Series A
MMirvie Health and bio	May 17, 2022 Series B+ · $60M	$60M	May 17, 2022 Series B+
TTonal Health and bio	Sep 1, 2020 Series B+ · $110M	$580M	Apr 10, 2023 round
BBigPanda AI agents	Nov 21, 2019 Series B+ · $50M	$279M	Oct 27, 2026 round
QQventus Health and bio	May 14, 2018 Series B+ · $30M	$185M	Jan 13, 2025 Series B+
OOrb	backer · source	$44.1M	Feb 23, 2025 Series B+
BBespoke Labs AI agents	backer · source	$40M	Jul 7, 2026 Series A
SScrunch AI agents	backer · source	$15M	Jul 22, 2025 Series A
HHello Haven	backer	$15M	Sep 17, 2026 Pre-seed
HHang Ten Systems	backer	undisclosed	Sep 16, 2026 Seed
LLumilens AI infrastructure and compute	backer	$700M	Aug 6, 2026 Series B+
AAkeana AI infrastructure and compute	backer	$100M	Aug 13, 2024 round
KKiwico Education	backer	undisclosed	—
IInception Foundation models and research	backer · source	$50M	Dec 3, 2025 Seed

Most frequent co-investors

Similar investors

Investors whose portfolios on Recent Funding center on the same category (AI infrastructure and compute).

How this is counted

Net returns as reported by the public-pension and foundation LPs invested in each fund.

Firm profile and fund returns: Fundraising Fox Open Dataset v2026-11, CC BY 4.0. Track-record counts are theirs, not Recent Funding's.

Venture funds Mayfield Fund raised, from the list of new VC funds compiled by Shai Goldman (Brex). Each size links to the article that states it, or to that list where no article was found. All new funds: new VC funds.

Share is of the 31 rounds on Recent Funding that name Mayfield Fund. Rounds with no announced date are left out of the year split, and "round" is a round whose stage is not on file.

Portfolio companies are the companies on Recent Funding with a round that lists Mayfield Fund, which is a subset of its real portfolio. API: /api/v1/investors/mayfield-fund (get a free API key). More: the most active VC firms and new venture capital funds.