paid only
2.10.26 - The Harvey & Runway Mafias
Sequoia-backed repeat founders leaving Harvey and founding members of Runway, Cohere, and Pika
Discovering Tomorrow's PayPal Mafia Today
Highlighting founders emerging from top startups
Read by investors managing $100B+ AUM. Limited to 200 members.
paid only
2.9.26 - The SambaNova Mafia
Senior architecture and platform leaders from SambaNova alongside infrastructure builders from Resolve AI and ElevenLabs.
paid only
2.6.26 - Top Founders of the Week
12 Repeat Founders, Co-Creator of Veo, and Founding Engineer of Parallel Web Systems
paid only
2.5.26 - Repeat Founders Backed by Khosla & Bessemer in Stealth
Former Drift, Turnstile, Machina Labs, Second Measure founders, alongside operators from Goodfire, TRM Labs, and Fibr
paid only
2.4.26 - Repeat Founders with $200M Exit, USV-Backed Founder, and Celestial AI's CTO
Repeat founders from the Day AI founder’s prior startup, a USV-backed founder, Celestial AI's CTO, and early builders from Uptool, Kindred, and Claroty.
paid only
2.3.26 - The Waymo Mafia
Waymo’s Co-Founder, Senior Autonomy, Perception, and Systems Leaders
paid only
2.2.26 - Poetiq + Kaia Health Founders and Founding Engineers from Fieldguide, Concourse, and RobCo
Poetiq’s co-founder, Kaia Health’s founding team post-acquisition, and early engineers from Fieldguide, Concourse, and RobCo.
paid only
1.30.26 - Top Founders of the Week
Brex’s co-founder, founding engineers, and first MLE; Farcaster’s co-founders post-acquisition; and early product and engineering leaders from Rogo, Phia, and Waabi.
paid only
1.29.26 - The Farcaster Mafia + Early Members from Outtake, Zocks, and Mine
Farcaster’s co-founders and early engineers post-acquisition, plus first hires and senior operators spinning out of Outtake, Decagon, Zocks, and Mine.
paid only
1.28.26 - The Rogo, Phia, and Waabi Mafias
Phia’s CTO, Rogo’s first FTE and Head of Product, repeat founders, and Waabi Founding Researcher.
paid only
1.27.26 - The World Labs & Synthesia Mafias + The Early Blockit Team
Synthesia’s first PM and senior MLE, early World Labs researchers, and Blockit’s founding team.
paid only
1.26.26 - The Brex Mafia
Brex’s co-founder, CRO, founding engineers, first hires, and senior product, infra, data, and security leaders now building in stealth.
Repeat Founder
paid only
2.27.26 - Top Founders of the Week
Co-Founders of Cursor, Freeform, Fluidstack, Orum; creators of Stripe Checkout/Atlas/Connect/Dashboard; Playco CTO & Statsig founding engineer
paid only
2.26.25 - The Stripe Mafia (Pt. 2)
Stripe-acquired repeat founder, CISO, Head of AI Development; Notion's 5th engineer; Anthropic and OpenAI alums; and 10+ repeat founders backed by Index, GC, and YC
paid only
2.24.26 - The Stripe Mafia
20+ repeat founders, Stripe's GM for Connect & Global Payments (ran 90% of P&L); Head of Applied ML; creators of Checkout, Atlas, Dashboard & Corporate Card
Founding Engineer
paid only
2.27.26 - Top Founders of the Week
Co-Founders of Cursor, Freeform, Fluidstack, Orum; creators of Stripe Checkout/Atlas/Connect/Dashboard; Playco CTO & Statsig founding engineer
paid only
2.20.26 - Top Founders of the Week
Head of ML at PolyAI, Stash’s co-founder post-sale, Lily Robotics and Jyve repeat founders, and Grafana’s post-acquisition builders
paid only
2.18.26 - The Kavak and Legora Mafias
Kavak co-founders, Legora’s founding SWE and country heads, a Vestwell co-founder in stealth, and Stripe/Figma managers building in stablecoins.
Repeat Founding Engineer
paid only
2.24.26 - The Stripe Mafia
20+ repeat founders, Stripe's GM for Connect & Global Payments (ran 90% of P&L); Head of Applied ML; creators of Checkout, Atlas, Dashboard & Corporate Card
paid only
2.23.26 - Fluidstack Founders, IQM’s CFO & a Freeform Co-Founder from SpaceX
Co-Founder & President @ Freeform, Co-Founders @ Fluidstack, SVP Product @ Cross River (GC-backed Founder of Seed); 0→€200M+ finance lead @ IQM
paid only
2.20.26 - Top Founders of the Week
Head of ML at PolyAI, Stash’s co-founder post-sale, Lily Robotics and Jyve repeat founders, and Grafana’s post-acquisition builders
AI
paid only
2.20.26 - Top Founders of the Week
Head of ML at PolyAI, Stash’s co-founder post-sale, Lily Robotics and Jyve repeat founders, and Grafana’s post-acquisition builders
paid only
2.17.26 - PolyAI’s COO, a Repeat YC Founder, and Senior Talent from Braintrust & Temporal
PolyAI’s COO and Head of ML, Temporal’s product and engineering leads, Braintrust's Head of Biz Ops, plus a 7-year DeepMind researcher now building in robotics.
paid only
2.12.26 - The Databricks Mafia
Acquired founders, MosaicML leaders, Spark architects, and MLflow authors building across security, inference, and infrastructure
Applied AI
paid only
2.20.26 - Top Founders of the Week
Head of ML at PolyAI, Stash’s co-founder post-sale, Lily Robotics and Jyve repeat founders, and Grafana’s post-acquisition builders
paid only
2.11.26 - Repeat Greylock and Founders Fund-Backed Founders Exploring Second Acts
Spinouts from Monaco and Bretton, Twilio Co-Founder free agents, and Garner data leadership building in AI, robotics, and healthcare.
paid only
2.10.26 - The Harvey & Runway Mafias
Sequoia-backed repeat founders leaving Harvey and founding members of Runway, Cohere, and Pika
Fintech
paid only
2.27.26 - Top Founders of the Week
Co-Founders of Cursor, Freeform, Fluidstack, Orum; creators of Stripe Checkout/Atlas/Connect/Dashboard; Playco CTO & Statsig founding engineer
paid only
2.20.26 - Top Founders of the Week
Head of ML at PolyAI, Stash’s co-founder post-sale, Lily Robotics and Jyve repeat founders, and Grafana’s post-acquisition builders
paid only
2.11.26 - Repeat Greylock and Founders Fund-Backed Founders Exploring Second Acts
Spinouts from Monaco and Bretton, Twilio Co-Founder free agents, and Garner data leadership building in AI, robotics, and healthcare.
Infrastructure
paid only
2.20.26 - Top Founders of the Week
Head of ML at PolyAI, Stash’s co-founder post-sale, Lily Robotics and Jyve repeat founders, and Grafana’s post-acquisition builders
paid only
2.17.26 - PolyAI’s COO, a Repeat YC Founder, and Senior Talent from Braintrust & Temporal
PolyAI’s COO and Head of ML, Temporal’s product and engineering leads, Braintrust's Head of Biz Ops, plus a 7-year DeepMind researcher now building in robotics.
paid only
2.12.26 - The Databricks Mafia
Acquired founders, MosaicML leaders, Spark architects, and MLflow authors building across security, inference, and infrastructure
Defense
paid only
2.5.26 - Repeat Founders Backed by Khosla & Bessemer in Stealth
Former Drift, Turnstile, Machina Labs, Second Measure founders, alongside operators from Goodfire, TRM Labs, and Fibr
paid only
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.
Biotech
Healthcare
paid only
2.11.26 - Repeat Greylock and Founders Fund-Backed Founders Exploring Second Acts
Spinouts from Monaco and Bretton, Twilio Co-Founder free agents, and Garner data leadership building in AI, robotics, and healthcare.
paid only
2.6.26 - Top Founders of the Week
12 Repeat Founders, Co-Creator of Veo, and Founding Engineer of Parallel Web Systems
paid only
2.4.26 - Repeat Founders with $200M Exit, USV-Backed Founder, and Celestial AI's CTO
Repeat founders from the Day AI founder’s prior startup, a USV-backed founder, Celestial AI's CTO, and early builders from Uptool, Kindred, and Claroty.
Crypto
paid only
2.5.26 - Repeat Founders Backed by Khosla & Bessemer in Stealth
Former Drift, Turnstile, Machina Labs, Second Measure founders, alongside operators from Goodfire, TRM Labs, and Fibr
paid only
1.22.26 - Cosmos Founder Starting Anew and The Anchorage & BitGo Mafias
A Cosmos co-founder, Anchorage founding engineers, and repeat founders within BitGo.
paid only
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.
Cybersecurity
paid only
2.4.26 - Repeat Founders with $200M Exit, USV-Backed Founder, and Celestial AI's CTO
Repeat founders from the Day AI founder’s prior startup, a USV-backed founder, Celestial AI's CTO, and early builders from Uptool, Kindred, and Claroty.
paid only
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.
paid only
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.
Robotics
paid only
2.27.26 - Top Founders of the Week
Co-Founders of Cursor, Freeform, Fluidstack, Orum; creators of Stripe Checkout/Atlas/Connect/Dashboard; Playco CTO & Statsig founding engineer
paid only
2.2.26 - Poetiq + Kaia Health Founders and Founding Engineers from Fieldguide, Concourse, and RobCo
Poetiq’s co-founder, Kaia Health’s founding team post-acquisition, and early engineers from Fieldguide, Concourse, and RobCo.
paid only
1.21.26 - The Zipline and Baseten Mafias
Repeat founders and founding engineers from Zipline, plus Baseten engineers and sales team
Energy
paid only
2.11.26 - Repeat Greylock and Founders Fund-Backed Founders Exploring Second Acts
Spinouts from Monaco and Bretton, Twilio Co-Founder free agents, and Garner data leadership building in AI, robotics, and healthcare.
paid only
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.
Consumer
paid only
2.20.26 - Top Founders of the Week
Head of ML at PolyAI, Stash’s co-founder post-sale, Lily Robotics and Jyve repeat founders, and Grafana’s post-acquisition builders
paid only
2.4.26 - Repeat Founders with $200M Exit, USV-Backed Founder, and Celestial AI's CTO
Repeat founders from the Day AI founder’s prior startup, a USV-backed founder, Celestial AI's CTO, and early builders from Uptool, Kindred, and Claroty.
paid only
1.22.26 - Cosmos Founder Starting Anew and The Anchorage & BitGo Mafias
A Cosmos co-founder, Anchorage founding engineers, and repeat founders within BitGo.