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Emdash

YC W26

San Francisco, US · Founded 2025 · 2 employees · 7 known investors

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Emdash is an open-source development environment for running coding agents in parallel with task scheduling and diff review capabilities. It supports multiple agent types and works across macOS, Windows, and Linux.

Also known as General Action, Inc.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareFuture of WorkSaaSUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W26)

Emdash was founded in 2025 by Raban von Spiegel and Arne Strickmann.

RVRaban von Spiegel
Raban von SpiegelCEORaban von Spiegel is an engineer with a Stanford degree who previously founded Soff (YC S24) and conducted research on software performance engineering at MIT CSAIL. He currently leads agent orchestration work at Emdash.
ASArne Strickmann
Arne StrickmannFounderuntil 2026Founder of Emdash, an open-source development environment for running coding agents in parallel with task scheduling and diff review capabilities.

Investors · 7

Zero Prime Ventureslisted by Zero Prime VenturesSan Francisco · $500K – $1.5M

How we know: the VCSheet dataset · Y Combinator's founder network · Not right? Tell us

Andreessen HorowitzreportedMenlo Park · $500K – $50M

How we know: Y Combinator's founder network · Not right? Tell us

Capitalize VCreportedChicago · $100K – $200K

How we know: Y Combinator's founder network · Not right? Tell us

CDTM Venture FundreportedMunich

How we know: Y Combinator's founder network · Not right? Tell us

Gradient VenturesreportedSan Francisco · $100K – $10M

How we know: Y Combinator's founder network · Not right? Tell us

James Beshara FundreportedVenice

How we know: Y Combinator's founder network · Not right? Tell us

Related companies · 3

ZapierZapier provides a platform for connecting AI models and agents to workflows and business applications, enabling teams to automate tasks across over 9,000 apps without coding. The platform serves enterprises, operations teams, and businesses of all sizes looking to deploy AI-driven automation for lead capture, customer support, employee onboarding, and other business processes.
QuillbotQuillBot provides an AI-powered workspace with tools for writing, paraphrasing, design, and visual generation, letting users brainstorm, research, and produce documents and presentations. It serves writers, students, educators, and professionals for tasks such as content creation, resumes, briefs, and reports.
GrammarlyGrammarly is an AI-powered writing assistant that helps users write with clarity and confidence across over 1 million apps and websites. The platform serves professionals, students, and teams through free and premium versions, and uses natural language processing to refine tone, suggest rewrites, and improve communication effectiveness.

Companies working in the same space as Emdash.

Legal entities · 1

corporate structure
General Action, Inc.

Frequently asked questions

What does Emdash do?
Emdash is an open-source development environment for running coding agents in parallel with task scheduling and diff review capabilities. It supports multiple agent types and works across macOS, Windows, and Linux.
Who founded Emdash?
Emdash was founded by Raban von Spiegel, Arne Strickmann in 2025.
Who are Emdash's investors?
Emdash's investors include Y Combinator, Zero Prime Ventures, Andreessen Horowitz, Capitalize VC, CDTM Venture Fund, Gradient Ventures, James Beshara Fund.
Where is Emdash headquartered?
Emdash is headquartered in San Francisco, US.