Discovering Tomorrow's PayPal Mafia Today

Highlighting founders emerging from top startups

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

1.13.26 - The Anthropic Mafia

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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

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SpaceX

06 Apr 2026

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

30 Mar 2026

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

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Flock

15 Apr 2026

4.15.26 - Flock CTO, Parasail Founding Engineer, and a Repeat YC Founder

Flock Safety’s Founder & CTO + early Flock engineering leaders, Parasail’s founding engineer, and a YC-backed founder (Code Four)

4.14.26 - Mintlify’s 1st FTE, YC Founders, Abstract-Backed Founding Engineer, and an IMO Medalist

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A16Z

14 Apr 2026

4.14.26 - Mintlify’s 1st FTE, YC Founders, Abstract-Backed Founding Engineer, and an IMO Medalist

Mintlify’s first engineer, YC-backed founders, Founding Teams from Build & Chapter, and an IMO medalist

4.13.26 - $2.5B Founder, $50M+ Exit Founder, and Starfish Chief Engineer

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Function Health

13 Apr 2026

4.13.26 - $2.5B Founder, $50M+ Exit Founder, and Starfish Chief Engineer

Function Health CTO, Getlabs Founder (YC → acquired), Starfish Chief Engineer ($150M+), and SiFive SVP & GM ($3.6B)

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Top Founders of the Week

10 Apr 2026

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

4.9.26 - Khosla-Backed Unicorn Founders, a $100M a16z-Backed Bio Founder, and Early Sarvam & AfterQuery Builders

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Healthcare

09 Apr 2026

4.9.26 - Khosla-Backed Unicorn Founders, a $100M a16z-Backed Bio Founder, and Early Sarvam & AfterQuery Builders

Hermeus Co-Founders & first avionics hire turned YC-backed founder, Stipple Bio’s Co-Founder & CT), and early Sarvam AI & AfterQuery team

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Founders Fund

08 Apr 2026

4.8.26 - The SpaceX Mafia Pt. 3

Serial CTO behind BuildOps (>$200M from Founders Fund), SpaceX Dragon & Falcon Senior Directors, Relativity’s former SVP of Manufacturing, YC founders, and a Shield AI engineering leader turned founder

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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

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SpaceX

06 Apr 2026

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

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Top Founders of the Week

05 Apr 2026

4.5.26 - Top Founders of the Week

Founding MTS @ Physical Intelligence, Mistral researchers from DeepMind, OpenAI, and Meta FAIR, WHOOP CTO, Saronic robotics architect, and Mercury founders with exits to Chime and GM

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Mercury

02 Apr 2026

4.2.26 - The Mercury Mafia

Mercury leaders with multiple exits (Chime, GM, Treehouse), repeat YC-backed founding engineers, early members of Anthropic-acquired Coefficient AI, and a GC-backed founding engineer

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Lightspeed

01 Apr 2026

4.1.26 - Lightspeed-backed Founder, Crosby Builder, and Factory Engineers Starting New

ScaleOps CTO ($800M valuation) and early builders from Crosby, Variance, and Factory (~$60M ARR, 6x growth).

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Kleiner Perkins

31 Mar 2026

3.31.26 - The Saronic & Whoop Mafia

WHOOP’s CTO (ex–Waymo Chief Engineer, Apple Autonomy, $130M co-founder), Saronic engineers launching a16z- and Boost-backed startups, a YC F25 repeat founder, and Whirl AI’s founding engineer

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

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A16Z

16 Jul 2026

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.

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Neko

14 Jul 2026

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.

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Base Power

12 Jul 2026

7.12.26 - Founding Scientist of Chai Discovery, Base Power Operators, and The Bending Spoons Mafia

Chai Discovery's founding scientist, engineering and product leaders from Bending Spoons, and former Tesla, NVIDIA, and SpaceX talent building after Base Power.

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Top Founders of the Week

19 Jul 2026

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.

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TerraFirma

18 Jul 2026

7.18.26 - Prime Intellect’s Founding Team & The TerraFirma Mafia

Prime Intellect’s founding research and protocol engineers and Head of Product, TerraFirma’s early robotics and autonomy talent, MicroAGI’s co-founder, and Rime’s 1st FTE.

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A16Z

16 Jul 2026

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.

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Top Founders of the Week

19 Jul 2026

7.19.26 - Top Founders of the Week

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TerraFirma

18 Jul 2026

7.18.26 - Prime Intellect’s Founding Team & The TerraFirma Mafia

Prime Intellect’s founding research and protocol engineers and Head of Product, TerraFirma’s early robotics and autonomy talent, MicroAGI’s co-founder, and Rime’s 1st FTE.

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Helsing

15 Jul 2026

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.

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TerraFirma

18 Jul 2026

7.18.26 - Prime Intellect’s Founding Team & The TerraFirma Mafia

Prime Intellect’s founding research and protocol engineers and Head of Product, TerraFirma’s early robotics and autonomy talent, MicroAGI’s co-founder, and Rime’s 1st FTE.

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A16Z

16 Jul 2026

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.

6.29.26 - Menlo-Backed Founding Engineers, Hippocratic AI's Early Research Team, and Founders from Muon Space

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Assort Health

30 Jun 2026

6.29.26 - Menlo-Backed Founding Engineers, Hippocratic AI's Early Research Team, and Founders from Muon Space

Founding engineers from Bland and Cadence, Hippocratic AI's early product research team, and former SpaceX, Zipline, and Muon Space engineering leaders

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A16Z

16 Jul 2026

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.

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Chai Discovery

13 Jul 2026

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.

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Etched

06 Jul 2026

7.6.26 - The Etched Mafia

Etched's earliest MTS hires, YC-backed repeat founders, Stanford and MIT AI researchers, plus Taxwire's founding engineer and chief of staff.

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Neko

14 Jul 2026

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.

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Chai Discovery

13 Jul 2026

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.

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Peregrine

09 Jul 2026

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.

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Databricks

18 Jun 2026

6.18.26 - The Databricks Mafia

Databricks product and engineering leaders, acquisition talent from MosaicML and Arcion, and founders building AI infrastructure, agents, and developer tools

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Founders Fund

12 Jun 2026

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

04 Jun 2026

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

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Top Founders of the Week

19 Jul 2026

7.19.26 - Top Founders of the Week

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Helsing

15 Jul 2026

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.

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Peregrine

09 Jul 2026

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.

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Top Founders of the Week

08 Jun 2026

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

05 Jun 2026

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

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Top Founders of the Week

10 Apr 2026

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

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A16Z

16 Jul 2026

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.

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Neko

14 Jul 2026

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.

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Assort Health

30 Jun 2026

6.29.26 - Menlo-Backed Founding Engineers, Hippocratic AI's Early Research Team, and Founders from Muon Space

Founding engineers from Bland and Cadence, Hippocratic AI's early product research team, and former SpaceX, Zipline, and Muon Space engineering leaders

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Mistral

11 Jun 2026

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

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Founder

14 May 2026

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

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Founding Engineer

27 Apr 2026

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

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Mistral

11 Jun 2026

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

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Top Founders of the Week

08 Jun 2026

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

05 Jun 2026

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

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

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A16Z

22 Apr 2026

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

18 Mar 2026

3.18.26 - Founding Operators from Paraform & Hanover Park

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

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Top Founders of the Week

19 Jul 2026

7.19.26 - Top Founders of the Week

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TerraFirma

18 Jul 2026

7.18.26 - Prime Intellect’s Founding Team & The TerraFirma Mafia

Prime Intellect’s founding research and protocol engineers and Head of Product, TerraFirma’s early robotics and autonomy talent, MicroAGI’s co-founder, and Rime’s 1st FTE.

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Top Founders of the Week

15 Jun 2026

6.15.26 - Top Founders of the Week

Ex DeepMind Researchers Leaving Mistral, Founders Behind a $100M Exit and a 9-Figure Company, and Founding Engineers from Poetic

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Base Power

12 Jul 2026

7.12.26 - Founding Scientist of Chai Discovery, Base Power Operators, and The Bending Spoons Mafia

Chai Discovery's founding scientist, engineering and product leaders from Bending Spoons, and former Tesla, NVIDIA, and SpaceX talent building after Base Power.