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Justin Mateen
Angel investor · Founded 2014 · Active in 2026
Justin Mateen is an angel investor based in Los Angeles, USA, founded in 2014. The page below shows 21 Power Law outcomes from Justin Mateen's portfolio — 18 unicorns ($1B+ valuation) and 2 additional thoroughbreds (companies that crossed $100M+ in revenue without yet reaching $1B+ valuation).
Outcomes are concentrated in Fintech · Space · Edtech; top portfolio geographies are USA · Mexico · Sweden. Justin Mateen ranks #157 in Global in the 2026 Dealroom Power Law Investor Ranking by cross-stage outcomes.
Justin Mateen’s biggest exits.
Justin Mateen 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.
Justin Mateen’s selected top holdings.
An estimate of Justin Mateen’s largest live positions — disclosed shareholding × Dealroom’s latest valuation — across 1 companies where Justin Mateen is a named shareholder, worth about $35M in estimated equity value.
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1
Speak
3.5%
$1.0B
$35M
Estimated value = Justin Mateen’s disclosed ownership % × Dealroom’s latest company valuation; direct named stakes only, exited positions excluded. Figures are indicative, not reported marks. Justin Mateen also appears inside investor groups in Nowports, where a standalone stake isn’t disclosed. See the underlying cap tables on Dealroom →
The 21 Justin Mateen 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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USA15
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Mexico2
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Sweden1
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Decentralised1
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UK1
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Germany1
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Fintech7
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Space4
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Edtech2
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Transportation2
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eCommerce & Marketplaces2
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Marketing2
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Biotech & Life Sciences1
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Health Tech & Medtech1
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Series B+11
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Series A4
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Seed6
Justin Mateen's 21 Power Law outcomes.
How does Justin Mateen stack up?
Justin Mateen in orange, your selection in blue and other colours. Pick from the global roster of 35 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 entry stage and outcome tierSector focus
Companies per investor across the 10 highest-volume sectorsWhere Justin Mateen's portfolio founders come from — and where they studied.
40 founders across the 21 Power Law outcomes — split by country of origin, university attended, and the company they worked at before founding. Massachusetts Institute of Technology and SpaceX | xAI are the deepest single pipelines.
Key people at Justin Mateen.
Market sentiment
What the market is saying about Justin Mateen
An AI-synthesized read of the highest-engagement posts about Justin Mateen 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 Justin Mateen
Recent press, funding announcements, and portfolio moves mentioning Justin Mateen — pulled live from Dealroom's news feed.
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