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Discovering Tomorrow's PayPal Mafia Today

Highlighting founders emerging from top startups

Read by investors managing $100B+ AUM. Limited to 200 members.

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8.30.26 - Top Founders of the Week
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Top Founders of the Week

8.30.26 - Top Founders of the Week

Perplexity’s earliest engineers and acquired founders, Blue Origin’s original team and SpaceX veterans, plus Hugging Face’s founding research crew and research leads spinning out.
8.24.26 - The Perplexity Mafia
Members Only
Perplexity

8.24.26 - The Perplexity Mafia

Perplexity’s Comet browser builders, 1st SWE & growth engineer, consumer experience lead, and acquired founders leaving to build new AI, agent, robotics, and consumer startups.
8.14.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.14.26 - Top Founders of the Week

8.31.26 - The Clay Mafia
Members Only
SaaS

8.31.26 - The Clay Mafia

Clay’s 1st and 5th employees, 1st marketing hire, early growth and engineering leaders spinning out to build across AI, fintech, healthcare, and physical sciences.
8.30.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.30.26 - Top Founders of the Week

Perplexity’s earliest engineers and acquired founders, Blue Origin’s original team and SpaceX veterans, plus Hugging Face’s founding research crew and research leads spinning out.
8.27.26 - The Blue Origin Mafia Pt. 2
Members Only
Coatue

8.27.26 - The Blue Origin Mafia Pt. 2

8.26.26 - The Blue Origin Mafia
Members Only
Blue Origin

8.26.26 - The Blue Origin Mafia

Blue Origin’s directors, propulsion and manufacturing engineers, including a former Hermeus CTO and SpaceX Dragon chief engineer building new aerospace, defense, industrial AI, and engineering startups.
8.25.26 - The Hugging Face Mafia
Members Only
Hugging Face

8.25.26 - The Hugging Face Mafia

Hugging Face’s founding research crew, previously acquired founders from Gradio and XetData, plus Greycroft-backed Co-Founders & Founding Research Engineers
8.24.26 - The Perplexity Mafia
Members Only
Perplexity

8.24.26 - The Perplexity Mafia

Perplexity’s Comet browser builders, 1st SWE & growth engineer, consumer experience lead, and acquired founders leaving to build new AI, agent, robotics, and consumer startups.
8.21.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.21.26 - Top Founders of the Week

Simile’s 1st hire and 5th MTS, Gravis Robotics’ co-founder, Higgsfield’s founding research talent, Fish Audio’s co-founders and founding engineer, Neros’ former COO, and Paradigm’s 1st employee & GP.
8.20.26 - Paradigm’s 1st Employee, Partners & VP Eng + Early Heroku, Privy & Multiverse Leaders
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Benchmark

8.20.26 - Paradigm’s 1st Employee, Partners & VP Eng + Early Heroku, Privy & Multiverse Leaders

Paradigm’s 1st employee, research and investment partners, and VP Engineering, alongside Heroku’s 1st engineer, Privy’s 2nd FTE & founding engineer, and Multiverse Computing’s former COO.
8.19.26 - Physical-World Founders from Hadrian’s Engineering Ranks + Form Energy’s VP Eng, Interim CFO & Early Leaders
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Sequoia

8.19.26 - Physical-World Founders from Hadrian’s Engineering Ranks + Form Energy’s VP Eng, Interim CFO & Early Leaders

Hadrian engineering, product, and manufacturing talent, plus Form Energy’s former VP Engineering, 2nd finance hire & interim CFO, and battery leaders building newcos.
8.18.26 - Fish Audio & Palona AI Co-Founders + Neros COO & SpaceX Alum
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Sequoia

8.18.26 - Fish Audio & Palona AI Co-Founders + Neros COO & SpaceX Alum

Two Fish Audio co-founders and its founding engineer, Neros’ former COO and SpaceX veteran, plus Palona AI’s co-founding engineering lead building newco.
8.17.26 - Founders & Early Builders from Higgsfield, Simile, Gravis Robotics & SkyPilot
Members Only
DST

8.17.26 - Founders & Early Builders from Higgsfield, Simile, Gravis Robotics & SkyPilot

Higgsfield’s founding researcher, Simile’s 1st hire and 5th MTS, a Gravis Robotics co-founder, and SkyPilot talent building YC-backed Tokenless.
8.14.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.14.26 - Top Founders of the Week

Repeat Founder

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8.30.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.30.26 - Top Founders of the Week

Perplexity’s earliest engineers and acquired founders, Blue Origin’s original team and SpaceX veterans, plus Hugging Face’s founding research crew and research leads spinning out.
8.25.26 - The Hugging Face Mafia
Members Only
Hugging Face

8.25.26 - The Hugging Face Mafia

Hugging Face’s founding research crew, previously acquired founders from Gradio and XetData, plus Greycroft-backed Co-Founders & Founding Research Engineers
8.24.26 - The Perplexity Mafia
Members Only
Perplexity

8.24.26 - The Perplexity Mafia

Perplexity’s Comet browser builders, 1st SWE & growth engineer, consumer experience lead, and acquired founders leaving to build new AI, agent, robotics, and consumer startups.

Founding Engineer

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8.31.26 - The Clay Mafia
Members Only
SaaS

8.31.26 - The Clay Mafia

Clay’s 1st and 5th employees, 1st marketing hire, early growth and engineering leaders spinning out to build across AI, fintech, healthcare, and physical sciences.
8.30.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.30.26 - Top Founders of the Week

Perplexity’s earliest engineers and acquired founders, Blue Origin’s original team and SpaceX veterans, plus Hugging Face’s founding research crew and research leads spinning out.
8.24.26 - The Perplexity Mafia
Members Only
Perplexity

8.24.26 - The Perplexity Mafia

Perplexity’s Comet browser builders, 1st SWE & growth engineer, consumer experience lead, and acquired founders leaving to build new AI, agent, robotics, and consumer startups.

Repeat Founding Engineer

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8.31.26 - The Clay Mafia
Members Only
SaaS

8.31.26 - The Clay Mafia

Clay’s 1st and 5th employees, 1st marketing hire, early growth and engineering leaders spinning out to build across AI, fintech, healthcare, and physical sciences.
8.30.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.30.26 - Top Founders of the Week

Perplexity’s earliest engineers and acquired founders, Blue Origin’s original team and SpaceX veterans, plus Hugging Face’s founding research crew and research leads spinning out.
8.27.26 - The Blue Origin Mafia Pt. 2
Members Only
Coatue

8.27.26 - The Blue Origin Mafia Pt. 2

AI

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8.30.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.30.26 - Top Founders of the Week

Perplexity’s earliest engineers and acquired founders, Blue Origin’s original team and SpaceX veterans, plus Hugging Face’s founding research crew and research leads spinning out.
8.25.26 - The Hugging Face Mafia
Members Only
Hugging Face

8.25.26 - The Hugging Face Mafia

Hugging Face’s founding research crew, previously acquired founders from Gradio and XetData, plus Greycroft-backed Co-Founders & Founding Research Engineers
8.24.26 - The Perplexity Mafia
Members Only
Perplexity

8.24.26 - The Perplexity Mafia

Perplexity’s Comet browser builders, 1st SWE & growth engineer, consumer experience lead, and acquired founders leaving to build new AI, agent, robotics, and consumer startups.

Applied AI

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8.18.26 - Fish Audio & Palona AI Co-Founders + Neros COO & SpaceX Alum
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Sequoia

8.18.26 - Fish Audio & Palona AI Co-Founders + Neros COO & SpaceX Alum

Two Fish Audio co-founders and its founding engineer, Neros’ former COO and SpaceX veteran, plus Palona AI’s co-founding engineering lead building newco.
8.9.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.9.26 - Top Founders of the Week

Founders and CTOs from Forward, Segment, Function Health, and Summer Health building again, alongside SpaceX-trained K2 Space leaders.
7.16.26 - Khosla-Backed Founding Engineer, Repeat 9-Figure Founders & Deeptune’s 1st Engineer
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A16Z

7.16.26 - Khosla-Backed Founding Engineer, Repeat 9-Figure Founders & Deeptune’s 1st Engineer

Bunkerhill Health’s founding engineer, repeat 9-figure founders, Wonder’s founding and early team, and Deeptune’s #1 founding engineer.

Fintech

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7.14.26 - NEA-Backed Founder in Stealth, Founding Engineers of Hadrius, and Neko Growth Leaders
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Neko

7.14.26 - NEA-Backed Founder in Stealth, Founding Engineers of Hadrius, and Neko Growth Leaders

Hadrius’ early engineers founding two YC startups, Valarian’s former Co-Founder & COO and VP of Engineering reuniting, and Neko Health operators.
7.13.26 - Top Founders of the Week
Members Only
Chai Discovery

7.13.26 - Top Founders of the Week

Early MTS hires from Etched, Chai Discovery's founding scientist, Together AI's founding engineering and research leaders, and CRED's founding product team.
7.9.26 - Peregrine's Deployment Team & CRED's Founding Product Leaders
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Peregrine

7.9.26 - Peregrine's Deployment Team & CRED's Founding Product Leaders

Deployment leaders from Peregrine, CRED's founding product team and repeat founders, and an early Castelion engineer building the next defense prime.

Infrastructure

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8.20.26 - Paradigm’s 1st Employee, Partners & VP Eng + Early Heroku, Privy & Multiverse Leaders
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Benchmark

8.20.26 - Paradigm’s 1st Employee, Partners & VP Eng + Early Heroku, Privy & Multiverse Leaders

Paradigm’s 1st employee, research and investment partners, and VP Engineering, alongside Heroku’s 1st engineer, Privy’s 2nd FTE & founding engineer, and Multiverse Computing’s former COO.
8.2.26 - Founding leaders from Forward and Segment, DroneDeploy-acquired Founders, and early builders from Cognition's latest acquisition.
Members Only
Repeat Founder

8.2.26 - Founding leaders from Forward and Segment, DroneDeploy-acquired Founders, and early builders from Cognition's latest acquisition.

Co-founders of Forward and Segment, whose founders now lead Foundational Industries and Revoy, building again plus DroneDeploy founders and early builders from Cognition's latest acquisition starting new.
7.28.26 - Top Founders of the Week
Members Only
Top Founders of the Week

7.28.26 - Top Founders of the Week

Co-Founders of Chainguard, Fluidstack & Colossal Biosciences, plus OpenSea’s former CTO and early employees & GMs from Atoms

Defense

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7.19.26 - Top Founders of the Week
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Top Founders of the Week

7.19.26 - Top Founders of the Week

Prime Intellect's founding research and protocol leaders, Helsing's AI directors, deployed engineers, and acquired founder, Shaped's co-founder following its Whatnot acquisition, Valarian's co-founders, TerraFirma's interim COO, and MicroAGI's co-founder.
7.15.26 - The Helsing Mafia
Members Only
Helsing

7.15.26 - The Helsing Mafia

Helsing-acquired founder, AI directors, deployed AI engineers, and product leaders building Europe's next generation of defense startups.
7.9.26 - Peregrine's Deployment Team & CRED's Founding Product Leaders
Members Only
Peregrine

7.9.26 - Peregrine's Deployment Team & CRED's Founding Product Leaders

Deployment leaders from Peregrine, CRED's founding product team and repeat founders, and an early Castelion engineer building the next defense prime.

Biotech

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7.31.26 - Function’s Co-Founding CTO, Antora’s CFO & Sequoia-Backed Summer Health Co-Founder
Members Only
A16Z

7.31.26 - Function’s Co-Founding CTO, Antora’s CFO & Sequoia-Backed Summer Health Co-Founder

Function Health’s Co-Founding CTO, Antora’s CFO and 5th commercial hire, the Co-Founder of Lux- and Sequoia-backed Summer Health, and Sail Biomedicines’ Chief Scientific Officer
7.28.26 - Top Founders of the Week
Members Only
Top Founders of the Week

7.28.26 - Top Founders of the Week

Co-Founders of Chainguard, Fluidstack & Colossal Biosciences, plus OpenSea’s former CTO and early employees & GMs from Atoms
7.26.26 - Co-Founders of Fluidstack’s Co-Founders & Colossal Biosciences
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Fluidstack

7.26.26 - Co-Founders of Fluidstack’s Co-Founders & Colossal Biosciences

Fluidstack’s co-founders, VP and directors of infrastructure and power systems; plus Colossal’s co-founder/CBO, Head of Biological Sciences, hardware director, and AI, computational biology, and stem-cell talent.

Healthcare

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8.20.26 - Paradigm’s 1st Employee, Partners & VP Eng + Early Heroku, Privy & Multiverse Leaders
Members Only
Benchmark

8.20.26 - Paradigm’s 1st Employee, Partners & VP Eng + Early Heroku, Privy & Multiverse Leaders

Paradigm’s 1st employee, research and investment partners, and VP Engineering, alongside Heroku’s 1st engineer, Privy’s 2nd FTE & founding engineer, and Multiverse Computing’s former COO.
8.9.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.9.26 - Top Founders of the Week

Founders and CTOs from Forward, Segment, Function Health, and Summer Health building again, alongside SpaceX-trained K2 Space leaders.
8.2.26 - Founding leaders from Forward and Segment, DroneDeploy-acquired Founders, and early builders from Cognition's latest acquisition.
Members Only
Repeat Founder

8.2.26 - Founding leaders from Forward and Segment, DroneDeploy-acquired Founders, and early builders from Cognition's latest acquisition.

Co-founders of Forward and Segment, whose founders now lead Foundational Industries and Revoy, building again plus DroneDeploy founders and early builders from Cognition's latest acquisition starting new.

Crypto

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8.21.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.21.26 - Top Founders of the Week

Simile’s 1st hire and 5th MTS, Gravis Robotics’ co-founder, Higgsfield’s founding research talent, Fish Audio’s co-founders and founding engineer, Neros’ former COO, and Paradigm’s 1st employee & GP.
6.11.26 - The Mistral Mafia
Members Only
Mistral

6.11.26 - The Mistral Mafia

Mistral's former Chief Business Officer, researchers from OpenAI and DeepMind, a healthcare AI founder from Morpho, and repeat engineering leaders behind multiple acquisitions
5.14.26 - Sequoia-Backed Founder, Repeat YC Founders, and Nectar Social’s 1st Engineer
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Founder

5.14.26 - Sequoia-Backed Founder, Repeat YC Founders, and Nectar Social’s 1st Engineer

Turnkey’s co-founder and ex-Coinbase Custody product lead, repeat YC founders acquired by Multiverse, Nectar Social’s 1st engineer, and Exaforce’s engineering lead

Cybersecurity

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6.11.26 - The Mistral Mafia
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Mistral

6.11.26 - The Mistral Mafia

Mistral's former Chief Business Officer, researchers from OpenAI and DeepMind, a healthcare AI founder from Morpho, and repeat engineering leaders behind multiple acquisitions
6.8.26 - Top Founders of the Week
Members Only
Top Founders of the Week

6.8.26 - Top Founders of the Week

The co-founders of Luma AI, Liftoff, Basis, Lila Sciences, Forage, Impulse Space's COO and first technical hire, and founders acquired by DriveNets
6.5.26 - 9 Figure Repeat Founder, Founders of Opals, and Zyphra Engineering Executives
Members Only
Greylock

6.5.26 - 9 Figure Repeat Founder, Founders of Opals, and Zyphra Engineering Executives

A $133M founder, Opal's co-founder, CTO, and CPO, engineering executives from Zyphra, and builders behind exits to Airwallex, Harness, and Salesforce

SaaS

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8.31.26 - The Clay Mafia
Members Only
SaaS

8.31.26 - The Clay Mafia

Clay’s 1st and 5th employees, 1st marketing hire, early growth and engineering leaders spinning out to build across AI, fintech, healthcare, and physical sciences.
8.4.26 - The Airtable Mafia
Members Only
Airtable

8.4.26 - The Airtable Mafia

Former Airtable CTOs, GMs, founding leaders, and acquired founders.
8.1.26 – K2 Space Leaders, Repeat Tiger-Backed Founder, and Boring Company Operators
Members Only
Kleiner Perkins

8.1.26 – K2 Space Leaders, Repeat Tiger-Backed Founder, and Boring Company Operators

K2 Space supply chain and product leaders, a Tiger-backed repeat founder, Domo's former Chief Security Officer, and early Boring Company builders.

Robotics

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8.21.26 - Top Founders of the Week
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Top Founders of the Week

8.21.26 - Top Founders of the Week

Simile’s 1st hire and 5th MTS, Gravis Robotics’ co-founder, Higgsfield’s founding research talent, Fish Audio’s co-founders and founding engineer, Neros’ former COO, and Paradigm’s 1st employee & GP.
8.17.26 - Founders & Early Builders from Higgsfield, Simile, Gravis Robotics & SkyPilot
Members Only
DST

8.17.26 - Founders & Early Builders from Higgsfield, Simile, Gravis Robotics & SkyPilot

Higgsfield’s founding researcher, Simile’s 1st hire and 5th MTS, a Gravis Robotics co-founder, and SkyPilot talent building YC-backed Tokenless.
8.2.26 - Founding leaders from Forward and Segment, DroneDeploy-acquired Founders, and early builders from Cognition's latest acquisition.
Members Only
Repeat Founder

8.2.26 - Founding leaders from Forward and Segment, DroneDeploy-acquired Founders, and early builders from Cognition's latest acquisition.

Co-founders of Forward and Segment, whose founders now lead Foundational Industries and Revoy, building again plus DroneDeploy founders and early builders from Cognition's latest acquisition starting new.

American Dynamism

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8.30.26 - Top Founders of the Week
Members Only
Top Founders of the Week

8.30.26 - Top Founders of the Week

Perplexity’s earliest engineers and acquired founders, Blue Origin’s original team and SpaceX veterans, plus Hugging Face’s founding research crew and research leads spinning out.
8.27.26 - The Blue Origin Mafia Pt. 2
Members Only
Coatue

8.27.26 - The Blue Origin Mafia Pt. 2

8.26.26 - The Blue Origin Mafia
Members Only
Blue Origin

8.26.26 - The Blue Origin Mafia

Blue Origin’s directors, propulsion and manufacturing engineers, including a former Hermeus CTO and SpaceX Dragon chief engineer building new aerospace, defense, industrial AI, and engineering startups.