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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
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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
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Top Founders of the Week

8.14.26 - Top Founders of the Week

1.21.26 - The Zipline and Baseten Mafias
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AI Infrastructure

1.21.26 - The Zipline and Baseten Mafias

Repeat founders and founding engineers from Zipline, plus Baseten engineers and sales team
1.20.26 - ClickHouse-Acquired Founder and Sequoia-Backed Founder On the Map
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ClickHouse

1.20.26 - ClickHouse-Acquired Founder and Sequoia-Backed Founder On the Map

Repeat founders within ClickHouse and Pennylane, alongside early product, AI, and GTM leaders emerging from ElevenLabs, Terralayr, and Ethos.
1.16.26 Top Founders of the Week
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Cerebras

1.16.26 Top Founders of the Week

Early product engineers and MTS from Anthropic, a Chief of Staff from SkildAI, the first product hire from Discord, and AI-chip engineers spinning out of Etched and Cerebras.
1.15.26 - The Cerebras Mafia
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Cerebras

1.15.26 - The Cerebras Mafia

Principal MTS and research scientists from Cerebras, a Chief of Staff from SkildAI, technical PM leadership from Alpaca, and early engineers and interns spinning out of Harmonic.
1.14.26 - The Etched Mafia
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Founder

1.14.26 - The Etched Mafia

Senior MTS and founding ML scientists from Etched, defense AI founders from Harmattan, and early product and AI leaders emerging from Aikido Security and Converge Bio.
1.13.26 - The Anthropic Mafia
Featured Post

1.13.26 - The Anthropic Mafia

Anthropic’s early product, research, and MTS talent, plus repeat founders building across AI infrastructure, policy, and safety.
1.12.26 - The Discord Mafia
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Crypto

1.12.26 - The Discord Mafia

Discord’s founder transitioning to the board, its first product hire, senior product, data, and business operators, plus early PM and engineering talent spinning out post-IPO filing.
1.9.26 - Top Founders of the Week
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xAI

1.9.26 - Top Founders of the Week

Groq and Motive co-founders, founding MTS from xAI, senior architects from Cyera, and an early technical hire from LMArena.

Repeat Founder

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9.16.25 - The ElevenLabs Mafia
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ElevenLabs

9.16.25 - The ElevenLabs Mafia

ElevenLabs’ early team, voice agents engineering lead, 1st intern and AI researchers spinning out alongside OpenAI Codex and Higgsfield founding talent building again.
9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers
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Greylock

9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers

Antioch’s co-founder, Factory’s AI infrastructure and technical talent, Savvy Wealth’s founding and 6th engineers, plus early Clarion and Manus builders launching newcos.
9.10.26 Top Founders of the Week
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Top Founders of the Week

9.10.26 Top Founders of the Week

Cognition’s engineers and researchers, Clay’s 1st and 5th employees, Wonderful’s former GM & Lokalise founder, and Unacademy’s co-founder & CTO starting new

Founding Engineer

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9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers
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Greylock

9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers

Antioch’s co-founder, Factory’s AI infrastructure and technical talent, Savvy Wealth’s founding and 6th engineers, plus early Clarion and Manus builders launching newcos.
9.10.26 Top Founders of the Week
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Top Founders of the Week

9.10.26 Top Founders of the Week

Cognition’s engineers and researchers, Clay’s 1st and 5th employees, Wonderful’s former GM & Lokalise founder, and Unacademy’s co-founder & CTO starting new
9.9.26 - The Mach Industries Mafia
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Sequoia

9.9.26 - The Mach Industries Mafia

Mach’s founding engineers, first manufacturing & supply chain leader, VP Engineering and integrated systems head spinning out to build across defense, aerospace, subsea robotics and consumer hardware.

Repeat Founding Engineer

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9.16.25 - The ElevenLabs Mafia
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ElevenLabs

9.16.25 - The ElevenLabs Mafia

ElevenLabs’ early team, voice agents engineering lead, 1st intern and AI researchers spinning out alongside OpenAI Codex and Higgsfield founding talent building again.
9.14.26 - Open-Weight AI Unicorn Founder, Thatch’s 15th FTE, and Adaptive’s Founding Product Head
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A16Z

9.14.26 - Open-Weight AI Unicorn Founder, Thatch’s 15th FTE, and Adaptive’s Founding Product Head

Arcee AI’s co-founder & CTO and Head of AI Engineering, Thatch’s early engineer and platforms GTM lead, plus Adaptive’s founding Head of Product & Strategy building again.
9.8.26 - The Harvey Mafia
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Harvey

9.8.26 - The Harvey Mafia

Harvey’s founding AI engineering leader, VP Engineering, Head of Security and acquired Mirage founders, plus early product, design and research talent building again.

AI

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9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers
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Greylock

9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers

Antioch’s co-founder, Factory’s AI infrastructure and technical talent, Savvy Wealth’s founding and 6th engineers, plus early Clarion and Manus builders launching newcos.
9.14.26 - Open-Weight AI Unicorn Founder, Thatch’s 15th FTE, and Adaptive’s Founding Product Head
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A16Z

9.14.26 - Open-Weight AI Unicorn Founder, Thatch’s 15th FTE, and Adaptive’s Founding Product Head

Arcee AI’s co-founder & CTO and Head of AI Engineering, Thatch’s early engineer and platforms GTM lead, plus Adaptive’s founding Head of Product & Strategy building again.
9.10.26 Top Founders of the Week
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Top Founders of the Week

9.10.26 Top Founders of the Week

Cognition’s engineers and researchers, Clay’s 1st and 5th employees, Wonderful’s former GM & Lokalise founder, and Unacademy’s co-founder & CTO starting new

Applied AI

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9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers
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Greylock

9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers

Antioch’s co-founder, Factory’s AI infrastructure and technical talent, Savvy Wealth’s founding and 6th engineers, plus early Clarion and Manus builders launching newcos.
9.14.26 - Open-Weight AI Unicorn Founder, Thatch’s 15th FTE, and Adaptive’s Founding Product Head
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A16Z

9.14.26 - Open-Weight AI Unicorn Founder, Thatch’s 15th FTE, and Adaptive’s Founding Product Head

Arcee AI’s co-founder & CTO and Head of AI Engineering, Thatch’s early engineer and platforms GTM lead, plus Adaptive’s founding Head of Product & Strategy building again.
9.8.26 - The Harvey Mafia
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Harvey

9.8.26 - The Harvey Mafia

Harvey’s founding AI engineering leader, VP Engineering, Head of Security and acquired Mirage founders, plus early product, design and research talent building again.

Fintech

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9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers
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Greylock

9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers

Antioch’s co-founder, Factory’s AI infrastructure and technical talent, Savvy Wealth’s founding and 6th engineers, plus early Clarion and Manus builders launching newcos.
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
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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.

Infrastructure

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9.4.26 - SoftBank-Backed Co-Founder & Early Engineer + $30B Crusoe’s VP Eng & Infra Leaders
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Crusoe

9.4.26 - SoftBank-Backed Co-Founder & Early Engineer + $30B Crusoe’s VP Eng & Infra Leaders

Unacademy’s co-founder & CTO and early technical talent, alongside Crusoe’s VP Engineering, cloud infrastructure director and distributed computing engineers building new AI infrastructure companies.
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.
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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.

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
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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
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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.

Biotech

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7.31.26 - Function’s Co-Founding CTO, Antora’s CFO & Sequoia-Backed Summer Health Co-Founder
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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
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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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9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers
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Greylock

9.15.26- Greylock-Backed Physical AI Co-Founder + Factory AI Infra Head & Savvy Wealth Founding Engineers

Antioch’s co-founder, Factory’s AI infrastructure and technical talent, Savvy Wealth’s founding and 6th engineers, plus early Clarion and Manus builders launching newcos.
9.14.26 - Open-Weight AI Unicorn Founder, Thatch’s 15th FTE, and Adaptive’s Founding Product Head
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A16Z

9.14.26 - Open-Weight AI Unicorn Founder, Thatch’s 15th FTE, and Adaptive’s Founding Product Head

Arcee AI’s co-founder & CTO and Head of AI Engineering, Thatch’s early engineer and platforms GTM lead, plus Adaptive’s founding Head of Product & Strategy building again.
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.

Crypto

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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.
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
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
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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
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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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9.10.26 Top Founders of the Week
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Top Founders of the Week

9.10.26 Top Founders of the Week

Cognition’s engineers and researchers, Clay’s 1st and 5th employees, Wonderful’s former GM & Lokalise founder, and Unacademy’s co-founder & CTO starting new
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
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Airtable

8.4.26 - The Airtable Mafia

Former Airtable CTOs, GMs, founding leaders, and acquired founders.

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
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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.
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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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9.9.26 - The Mach Industries Mafia
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Sequoia

9.9.26 - The Mach Industries Mafia

Mach’s founding engineers, first manufacturing & supply chain leader, VP Engineering and integrated systems head spinning out to build across defense, aerospace, subsea robotics and consumer hardware.
9.3.26 - First Round-Backed Co-Founder + HiddenLayer Founding Engineer and Repeat Founders from Wonderful AI
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Wonderful

9.3.26 - First Round-Backed Co-Founder + HiddenLayer Founding Engineer and Repeat Founders from Wonderful AI

Aranya co-founder, HiddenLayer founding engineer, and Wonderful’s former Baltic GM, Argentina & Chile CTO, and Palantir-trained CTO Office leader building again.
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.