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Repeat Founding Engineer

2.24.26 - The Stripe Mafia
paid only
Sequoia

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
2.23.26 - Fluidstack Founders, IQM’s CFO & a Freeform Co-Founder from SpaceX
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Repeat Founder

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
2.20.26 - Top Founders of the Week
paid only
Sante

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
2.12.26 - The Databricks Mafia
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AI Infrastructure

2.12.26 - The Databricks Mafia

Acquired founders, MosaicML leaders, Spark architects, and MLflow authors building across security, inference, and infrastructure
2.11.26 - Repeat Greylock and Founders Fund-Backed Founders Exploring Second Acts
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Simple AI

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.
2.10.26 - The Harvey & Runway Mafias
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Harvey

2.10.26 - The Harvey & Runway Mafias

Sequoia-backed repeat founders leaving Harvey and founding members of Runway, Cohere, and Pika
2.6.26 - Top Founders of the Week
paid only
Autonomous Driving

2.6.26 - Top Founders of the Week

12 Repeat Founders, Co-Creator of Veo, and Founding Engineer of Parallel Web Systems
2.3.26 - The Waymo Mafia
paid only
Founder

2.3.26 - The Waymo Mafia

Waymo’s Co-Founder, Senior Autonomy, Perception, and Systems Leaders
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
1.16.26 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.
1.13.26 - The Anthropic Mafia
members only
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1.13.26 - The Anthropic Mafia

Anthropic’s early product, research, and MTS talent, plus repeat founders building across AI infrastructure, policy, and safety.