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Mayfield
Corporate venture · Founded 1969 · Active in 2026
Mayfield is a corporate venture based in USA, founded in 1969. The page below shows 30 Power Law outcomes from Mayfield's portfolio — 29 unicorns ($1B+ valuation) and 0 additional thoroughbreds (companies that crossed $100M+ in revenue without yet reaching $1B+ valuation).
Outcomes are concentrated in Other · Other B2B Software · Cybersecurity; top portfolio geographies are USA · India. Mayfield ranks #134 in Global in the 2026 Dealroom Power Law Investor Ranking by cross-stage outcomes.
Mayfield’s biggest exits.
Mayfield portfolio companies worth $1B+ that have IPO’d or been acquired. Each shows its valuation at exit and, in grey, its current value if still public.
The 30 Mayfield Power Law outcomes ($100M+ revenue or $1B+ valuation).
Snapshot of where the outcomes are concentrated by country, sector, and stage entered.
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USA29
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India1
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Other6
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Other B2B Software5
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Cybersecurity3
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AI3
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Marketing3
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eCommerce & Marketplaces2
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Transportation2
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Biotech & Life Sciences2
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Energy1
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Health Tech & Medtech1
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Fintech1
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Robotics1
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Series B+10
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Series A15
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Seed4
Mayfield’s biggest current holdings.
An estimate of Mayfield’s largest live positions — disclosed shareholding × Dealroom’s latest valuation — across 5 companies where Mayfield is a named shareholder, worth about $1.1B in estimated equity value.
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1
Outreach
12%
$4.4B
$528M
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2
Alchemy
2%
$10.2B
$204M
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3
BigPanda
11.5%
$1.2B
$138M
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4
SeekOut
9%
$1.2B
$108M
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5
Mammoth Biosciences
9.5%
$1.0B
$95M
Estimated value = Mayfield’s disclosed ownership % × Dealroom’s latest company valuation; direct named stakes only, exited positions excluded. Figures are indicative, not reported marks. See the underlying cap tables on Dealroom →
Mayfield's 30 Power Law outcomes.
How does Mayfield stack up?
Mayfield in orange, your selection in blue and other colours. Pick from the global roster of 609 peer investors — scope by startup location or hit "Find similar shapes" to auto-pick the three closest. The funnel matrix mirrors the spider chart on the ranking page; the line chart shows each firm's share of unicorns minted in the selected startup location — peaks reveal vintage years.
Share of new unicorns per year
% of global unicorns minted that year, year by year · hover the chart to see which unicornsStage focus
Companies by selected outcome stageSector focus
Companies per investor across the 10 highest-volume sectorsBeyond Unicorns — how the portfolio compounds
% of each investor's unicorn portfolio that later crossed $10B, $25B and $50B. Pick a sort tier and entry stage.Where Mayfield's portfolio founders come from — and where they studied.
81 founders across the 30 Power Law outcomes — split by country of origin, university attended, and the company they worked at before founding. Stanford University and Alphabet | Google are the deepest single pipelines.
Key people at Mayfield.
Market sentiment
What the market is saying about Mayfield
An AI-synthesized read of the highest-engagement posts about Mayfield on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
In the news
Latest news about Mayfield
Recent press, funding announcements, and portfolio moves mentioning Mayfield — pulled live from Dealroom's news feed.
Want the full picture on Mayfield?
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