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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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4.7.26 - SpaceX Mafia Pt. 2
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Top Posts

4.7.26 - SpaceX Mafia Pt. 2

Shield AI’s Co-CTO, 14-year SpaceX Director, Starlink engineering leads, founders of $100M+ startups, and Anduril leaders building next-gen space and autonomy startups
4.6.26 - The SpaceX Mafia
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SpaceX

4.6.26 - The SpaceX Mafia

Veteran SpaceX engineers and Starlink directors, ex–Anduril/Mach leaders, Founders Fund & Khosla-backed founding employees, and repeat YC Founders building in space and defense
3.30.26 - The Physical Intelligence & Mistral Mafia
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Early Team

3.30.26 - The Physical Intelligence & Mistral Mafia

Founding MTS @ Physical Intelligence, Mistral Founding Member, Anduril early SF engineer, Mistral researchers from DeepMind, OpenAI, and Meta FAIR (Llama), and a founding team member from Bessemer-backed Sett
1.22.26 - Cosmos Founder Starting Anew and The Anchorage & BitGo Mafias
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Crypto

1.22.26 - Cosmos Founder Starting Anew and The Anchorage & BitGo Mafias

A Cosmos co-founder, Anchorage founding engineers, and repeat founders within BitGo.
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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6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders
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Founders Fund

6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders

Founding engineers from Founders Fund-backed Poetic, the former co-founder of Spin & Matchday, Stepful's YC-backed CTO, and NinjaOne's former CTO
6.10.26 - The Standard Bots Mafia
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General Catalyst

6.10.26 - The Standard Bots Mafia

Founders behind exits to Oracle, Funding Circle, and Bayada Health, the former CEO of Bowery Farming ($600M+ raised), a repeat PearX founder, and an engineering leader from Anthropic-acquired Stainless
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

Founding Engineer

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6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders
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Founders Fund

6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders

Founding engineers from Founders Fund-backed Poetic, the former co-founder of Spin & Matchday, Stepful's YC-backed CTO, and NinjaOne's former CTO
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

Repeat Founding Engineer

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5.10.26 - Top Founders of the Week
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Top Founders of the Week

5.10.26 - Top Founders of the Week

Sierra early team, Suno’s co-founder, Enter founding team, and Corgi’s founding engineers
4.30.26 - Fun Co-Founder & Founding Engineers, and Spring Health & Alma Leaders
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Repeat Founder

4.30.26 - Fun Co-Founder & Founding Engineers, and Spring Health & Alma Leaders

Spring Health/Alma SVP, CTO, and CPO leaders, and Fun co-founder, interim CTO, and founding engineers
4.16.26 - The Resolve AI Mafia & A16Z-backed Founder & First Engineer
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A16Z

4.16.26 - The Resolve AI Mafia & A16Z-backed Founder & First Engineer

Pillar’s Co-Founder & CEO and first engineer, early engineers from Resolve AI, and Slate Auto’s Head of Automotive Software (ex-Tesla Director) turned founder

AI

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6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders
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Founders Fund

6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders

Founding engineers from Founders Fund-backed Poetic, the former co-founder of Spin & Matchday, Stepful's YC-backed CTO, and NinjaOne's former CTO
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
6.4.26 - Lila’s Co-Founder & 1st Employee, $175M Founder & Generalist AI COO, and Forage’s Founding Team
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Lilia Sciences

6.4.26 - Lila’s Co-Founder & 1st Employee, $175M Founder & Generalist AI COO, and Forage’s Founding Team

Lila Sciences’ co-founder and first employee, the founder of Nylas and COO of Generalist AI, plus founders, first hires, and executives from Forage

Applied AI

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6.10.26 - The Standard Bots Mafia
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General Catalyst

6.10.26 - The Standard Bots Mafia

Founders behind exits to Oracle, Funding Circle, and Bayada Health, the former CEO of Bowery Farming ($600M+ raised), a repeat PearX founder, and an engineering leader from Anthropic-acquired Stainless
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

Fintech

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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
6.4.26 - Lila’s Co-Founder & 1st Employee, $175M Founder & Generalist AI COO, and Forage’s Founding Team
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Lilia Sciences

6.4.26 - Lila’s Co-Founder & 1st Employee, $175M Founder & Generalist AI COO, and Forage’s Founding Team

Lila Sciences’ co-founder and first employee, the founder of Nylas and COO of Generalist AI, plus founders, first hires, and executives from Forage
5.10.26 - Top Founders of the Week
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Top Founders of the Week

5.10.26 - Top Founders of the Week

Sierra early team, Suno’s co-founder, Enter founding team, and Corgi’s founding engineers

Infrastructure

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6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders
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Founders Fund

6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders

Founding engineers from Founders Fund-backed Poetic, the former co-founder of Spin & Matchday, Stepful's YC-backed CTO, and NinjaOne's former CTO
6.3.26 – Impulse Space Executive & 1st Technical Hire, DriveNets-Acquired Founders, and a Legora-Acquired Founding Engineer
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Bessemer

6.3.26 – Impulse Space Executive & 1st Technical Hire, DriveNets-Acquired Founders, and a Legora-Acquired Founding Engineer

SpaceX and Tesla talent from Impulse Space, founders acquired by DriveNets, architecture leaders from Cyera, and security executives from Contentful
4.16.26 - The Resolve AI Mafia & A16Z-backed Founder & First Engineer
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A16Z

4.16.26 - The Resolve AI Mafia & A16Z-backed Founder & First Engineer

Pillar’s Co-Founder & CEO and first engineer, early engineers from Resolve AI, and Slate Auto’s Head of Automotive Software (ex-Tesla Director) turned founder

Defense

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6.1.26 – Founders & Founding Operators from Sekai, Fonoa, StackAI, and Portkey
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Sekai

6.1.26 – Founders & Founding Operators from Sekai, Fonoa, StackAI, and Portkey

Sekai and Fonoa co-founders, StackAI founding engineers, and early GTM leadership from Portkey
5.11.26 - The Helsing Mafia
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Lightspeed

5.11.26 - The Helsing Mafia

Acquired founders and senior AI operators from Helsing, plus early Moonshot AI product and engineering talent
3.9.26 - The Anduril Mafia
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Founders Fund

3.9.26 - The Anduril Mafia

Anduril Chief Engineer, Mach Industries CTO, Founding MTS at Physical Intelligence, and other Anduril engineering leaders from SpaceX, CIA, and Uber ATG

Biotech

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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
6.4.26 - Lila’s Co-Founder & 1st Employee, $175M Founder & Generalist AI COO, and Forage’s Founding Team
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Lilia Sciences

6.4.26 - Lila’s Co-Founder & 1st Employee, $175M Founder & Generalist AI COO, and Forage’s Founding Team

Lila Sciences’ co-founder and first employee, the founder of Nylas and COO of Generalist AI, plus founders, first hires, and executives from Forage
4.10.26 - Top Founders of the Week
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Top Founders of the Week

4.10.26 - Top Founders of the Week

Mach Industries CTO, Early Anduril Engineering Leader, senior SpaceX Directors & Leaders, Hermeus Co-Founders, and Stipple Bio’s Co-Founder & CTO

Healthcare

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6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders
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Founders Fund

6.9.26 - Founders Fund-backed founding engineers, a $100M founder, a YC-backed CTO, and repeat AI infrastructure leaders

Founding engineers from Founders Fund-backed Poetic, the former co-founder of Spin & Matchday, Stepful's YC-backed CTO, and NinjaOne's former CTO
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
5.31.26 - Founding Operators from Garner & Baseten, and the Former CEO of Focused Energy
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Baseten

5.31.26 - Founding Operators from Garner & Baseten, and the Former CEO of Focused Energy

Garner's 1st FTE and executive leadership, Baseten's founding engineer, Focused Energy's former CEO, and senior operators from MaintainX and Trajectory

Crypto

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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
4.27.26 - True Anomaly Executives, Actively’s Founding Engineer, and Manus AI Fellows
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Founding Engineer

4.27.26 - True Anomaly Executives, Actively’s Founding Engineer, and Manus AI Fellows

Early engineers and leadership from True Anomaly, Actively’s first engineer, repeat founder & quant from Liquid, and Manus AI fellows
3.18.26 - Founding Operators from Paraform & Hanover Park
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Scale

3.18.26 - Founding Operators from Paraform & Hanover Park

Paraform & Hanover Park founding operators, and early builders across Axiamatic, Grow Therapy, and Andromeda

Cybersecurity

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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
3.26.26 - The Shield AI Mafia
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A16Z

3.26.26 - The Shield AI Mafia

Shield AI’s COO turned founder, Anduril’s former Chief Engineer, Tesla Cybertruck lead and Mach Industries build head, Founders Fund/Index-backed founding ML engineer, and a $100M Felicis-backed founder transitioning out of CEO

SaaS

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4.22.26 - Skydio Early Autonomy Engineers, DeepMind Researcher, Ex YC Founder
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A16Z

4.22.26 - Skydio Early Autonomy Engineers, DeepMind Researcher, Ex YC Founder

Skydio early autonomy engineers, a GNC Lead from Reliable Robotics, Monk’s founding engineers, DeepMind / Google Brain Researcher, and ex-YC Founder
3.18.26 - Founding Operators from Paraform & Hanover Park
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Scale

3.18.26 - Founding Operators from Paraform & Hanover Park

Paraform & Hanover Park founding operators, and early builders across Axiamatic, Grow Therapy, and Andromeda

Robotics

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6.10.26 - The Standard Bots Mafia
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General Catalyst

6.10.26 - The Standard Bots Mafia

Founders behind exits to Oracle, Funding Circle, and Bayada Health, the former CEO of Bowery Farming ($600M+ raised), a repeat PearX founder, and an engineering leader from Anthropic-acquired Stainless
4.26.26 - Top Founders of the Week
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Top Founders of the Week

4.26.26 - Top Founders of the Week

Cursor co-founder and early engineers, Cohere’s CPO, a repeat founder from Polymarket, and Skydio early engineers
4.22.26 - Skydio Early Autonomy Engineers, DeepMind Researcher, Ex YC Founder
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A16Z

4.22.26 - Skydio Early Autonomy Engineers, DeepMind Researcher, Ex YC Founder

Skydio early autonomy engineers, a GNC Lead from Reliable Robotics, Monk’s founding engineers, DeepMind / Google Brain Researcher, and ex-YC Founder

American Dynamism

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5.7.26 - The Astranis Mafia & Corgi’s Founding Team
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Founding Engineer

5.7.26 - The Astranis Mafia & Corgi’s Founding Team

Astranis engineering, avionics, security, and Office of CTO leaders, plus Corgi’s founding team building GPU financing infrastructure
5.1.26 - Top Founders of the Week
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Top Founders of the Week

5.1.26 - Top Founders of the Week

Founding engineers from Parallel and Rogo, True Anomaly’s Chief Engineer, Legora’s 1st FTE, and Actively’s first engineer
4.27.26 - True Anomaly Executives, Actively’s Founding Engineer, and Manus AI Fellows
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Founding Engineer

4.27.26 - True Anomaly Executives, Actively’s Founding Engineer, and Manus AI Fellows

Early engineers and leadership from True Anomaly, Actively’s first engineer, repeat founder & quant from Liquid, and Manus AI fellows