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StarSling

StarSling is a San Francisco developer-tools company founded in 2025 by Yonas Beshawred (founder of StackShare) and ex-Netflix engineer Daniel Worku, part of Y Combinator X25.

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📍 San Francisco · Silicon ValleyFounded 2025

About

StarSling is a San Francisco developer-tools company founded in 2025 by Yonas Beshawred (founder of StackShare) and ex-Netflix engineer Daniel Worku, part of Y Combinator X25. It offers faster, cheaper drop-in Ubuntu and GPU runners for GitHub Actions plus AI agents that continuously optimize CI workflows (caching, test sharding, parallelization) and review code; customers include Better Auth, Mastra and Bespoke Labs.

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Founders / core team

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Investors that may fit

Y Combinator

28 Developer Tools deals in the last 24 months · 25 in 硅谷

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Accel

23 Developer Tools deals in the last 24 months · 14 in 硅谷

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Sequoia Capital

15 Developer Tools deals in the last 24 months · 13 in 硅谷

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Andreessen Horowitz

14 Developer Tools deals in the last 24 months · 14 in 硅谷

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Lightspeed

13 Developer Tools deals in the last 24 months · 13 in 硅谷

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General Catalyst

11 Developer Tools deals in the last 24 months · 9 in 硅谷

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Ranked by each firm’s deals in this sector over the last 24 months, weighted by nearby stage and shared geography. Indicative only — no rating judgment.

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