Get Access

Discovering Tomorrow's PayPal Mafia Today

Highlighting founders emerging from top startups

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

Top Posts

View all
4.7.26 - SpaceX Mafia Pt. 2
Members Only
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
Members Only
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
Members Only
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
7.7.26 - The Together AI Mafia
Members Only
AI Infrastructure

7.7.26 - The Together AI Mafia

Together AI's founding VP of Engineering, principal AI product and research leaders, Refuel's founding ML engineer, and Stanford AI researchers.
7.6.26 - The Etched Mafia
Members Only
Etched

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.
7.1.26 - Top Founders of the Week
Members Only
Top Founders of the Week

7.1.26 - Top Founders of the Week

Ramp's earliest engineering and product leaders, RunPod's founding engineering team, Twelve Labs' founding engineer, and the first employee of 8VC-backed Default.
6.30.26 - Founding Engineers from RunPod, Twelve Labs, and Moment
Members Only
Founding Engineer

6.30.26 - Founding Engineers from RunPod, Twelve Labs, and Moment

RunPod's founding engineer and chief of staff now building agent observability, Twelve Labs' founding engineer turned stealth CEO, Default's founding engineer, and Build.inc's founding engineer.
6.29.26 - Menlo-Backed Founding Engineers, Hippocratic AI's Early Research Team, and Founders from Muon Space
Members Only
Assort Health

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
6.25.26 - The Ramp Mafia Pt. 2
Members Only
Fintech

6.25.26 - The Ramp Mafia Pt. 2

Ramp's 40th employee, founding fraud engineer, Head of Spend Engineering, and cloud infrastructure leader, alongside founders behind Venue (acquired by Ramp), VHX (acquired by Vimeo), and Zingage's founding engineer
6.24.26 - The Ramp Mafia
Members Only
Ramp

6.24.26 - The Ramp Mafia

Ramp's 20th FTE and Ramp Labs lead, Ramp-acquired founders behind Venue and Cohere, founding AI and mobile engineers, and Mercor's 13th FTE
6.23.26 - Top Founders of the Week
Members Only
Top Founders of the Week

6.23.26 - Top Founders of the Week

The co-founder of Cursor, Databricks product, engineering, and security leaders, the founder behind Roku's acquisition of DataXu, and the CloudTrucks co-founder from Salesforce-acquired Intercom
6.22.26 - The Databricks Mafia Pt. 2
Members Only
Databricks

6.22.26 - The Databricks Mafia Pt. 2

The creators of MLflow and Databricks' ML Platform, Databricks product, engineering, and security leadership, and Ramp's founding fraud engineer
6.18.26 - The Databricks Mafia
Members Only
Databricks

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
6.17.26 - The Cursor Mafia
Members Only
Founder

6.17.26 - The Cursor Mafia

6.16.26 - The Roku Mafia, Repeat Founders from Intercom, and Founding Members of Sarvam
Members Only
Repeat Founder

6.16.26 - The Roku Mafia, Repeat Founders from Intercom, and Founding Members of Sarvam

Founders behind DataXu's $150M sale to Roku, product engineers from Salesforce-acquired Intercom, founding product and engineering leaders from Sarvam AI, and Bland's founding engineer

Repeat Founder

View all
7.6.26 - The Etched Mafia
Members Only
Etched

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.
7.1.26 - Top Founders of the Week
Members Only
Top Founders of the Week

7.1.26 - Top Founders of the Week

Ramp's earliest engineering and product leaders, RunPod's founding engineering team, Twelve Labs' founding engineer, and the first employee of 8VC-backed Default.
6.29.26 - Menlo-Backed Founding Engineers, Hippocratic AI's Early Research Team, and Founders from Muon Space
Members Only
Assort Health

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

Founding Engineer

View all
7.7.26 - The Together AI Mafia
Members Only
AI Infrastructure

7.7.26 - The Together AI Mafia

Together AI's founding VP of Engineering, principal AI product and research leaders, Refuel's founding ML engineer, and Stanford AI researchers.
7.6.26 - The Etched Mafia
Members Only
Etched

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.
7.1.26 - Top Founders of the Week
Members Only
Top Founders of the Week

7.1.26 - Top Founders of the Week

Ramp's earliest engineering and product leaders, RunPod's founding engineering team, Twelve Labs' founding engineer, and the first employee of 8VC-backed Default.

Repeat Founding Engineer

View all
7.7.26 - The Together AI Mafia
Members Only
AI Infrastructure

7.7.26 - The Together AI Mafia

Together AI's founding VP of Engineering, principal AI product and research leaders, Refuel's founding ML engineer, and Stanford AI researchers.
7.1.26 - Top Founders of the Week
Members Only
Top Founders of the Week

7.1.26 - Top Founders of the Week

Ramp's earliest engineering and product leaders, RunPod's founding engineering team, Twelve Labs' founding engineer, and the first employee of 8VC-backed Default.
6.30.26 - Founding Engineers from RunPod, Twelve Labs, and Moment
Members Only
Founding Engineer

6.30.26 - Founding Engineers from RunPod, Twelve Labs, and Moment

RunPod's founding engineer and chief of staff now building agent observability, Twelve Labs' founding engineer turned stealth CEO, Default's founding engineer, and Build.inc's founding engineer.

AI

View all
6.29.26 - Menlo-Backed Founding Engineers, Hippocratic AI's Early Research Team, and Founders from Muon Space
Members Only
Assort Health

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

6.23.26 - Top Founders of the Week

The co-founder of Cursor, Databricks product, engineering, and security leaders, the founder behind Roku's acquisition of DataXu, and the CloudTrucks co-founder from Salesforce-acquired Intercom
6.17.26 - The Cursor Mafia
Members Only
Founder

6.17.26 - The Cursor Mafia

Applied AI

View all
7.6.26 - The Etched Mafia
Members Only
Etched

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.
7.1.26 - Top Founders of the Week
Members Only
Top Founders of the Week

7.1.26 - Top Founders of the Week

Ramp's earliest engineering and product leaders, RunPod's founding engineering team, Twelve Labs' founding engineer, and the first employee of 8VC-backed Default.
6.29.26 - Menlo-Backed Founding Engineers, Hippocratic AI's Early Research Team, and Founders from Muon Space
Members Only
Assort Health

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

Fintech

View all
7.1.26 - Top Founders of the Week
Members Only
Top Founders of the Week

7.1.26 - Top Founders of the Week

Ramp's earliest engineering and product leaders, RunPod's founding engineering team, Twelve Labs' founding engineer, and the first employee of 8VC-backed Default.
6.30.26 - Founding Engineers from RunPod, Twelve Labs, and Moment
Members Only
Founding Engineer

6.30.26 - Founding Engineers from RunPod, Twelve Labs, and Moment

RunPod's founding engineer and chief of staff now building agent observability, Twelve Labs' founding engineer turned stealth CEO, Default's founding engineer, and Build.inc's founding engineer.
6.25.26 - The Ramp Mafia Pt. 2
Members Only
Fintech

6.25.26 - The Ramp Mafia Pt. 2

Ramp's 40th employee, founding fraud engineer, Head of Spend Engineering, and cloud infrastructure leader, alongside founders behind Venue (acquired by Ramp), VHX (acquired by Vimeo), and Zingage's founding engineer

Infrastructure

View all
6.18.26 - The Databricks Mafia
Members Only
Databricks

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

Defense

View all
6.1.26 – Founders & Founding Operators from Sekai, Fonoa, StackAI, and Portkey
Members Only
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
Members Only
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
Members Only
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

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

View all
6.29.26 - Menlo-Backed Founding Engineers, Hippocratic AI's Early Research Team, and Founders from Muon Space
Members Only
Assort Health

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

Crypto

View all
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
Members Only
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
Members Only
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

Cybersecurity

View all
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
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

View all
4.22.26 - Skydio Early Autonomy Engineers, DeepMind Researcher, Ex YC Founder
Members Only
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
Members Only
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

View all
6.15.26 - Top Founders of the Week
Members Only
Top Founders of the Week

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
6.10.26 - The Standard Bots Mafia
Members Only
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
Members Only
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

American Dynamism

View all
5.7.26 - The Astranis Mafia & Corgi’s Founding Team
Members Only
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
Members Only
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
Members Only
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