Reflex (YC W23) — The operating system for building mission-critical enterprise apps
Reflex is the operating system for building mission-critical enterprise applications. Today’s enterprise stack is fragmented.
Reflex is a Y Combinator company in the Winter 2023 batch. Its directory entry describes it as: The operating system for building mission-critical enterprise apps. The founders listed are Nikhil Rao (Founder), Alek Petuskey (Founder) (Y Combinator directory entry, January 23, 2023).
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Reflex is the operating system for building mission-critical enterprise applications.
Today’s enterprise stack is fragmented. Shipping an app requires stitching together multiple tools and coordinating across multiple roles. Reflex replaces that complexity with a single, unified platform to build, deploy, and manage production applications end-to-end.
We empower teams to own the entire lifecycle of their apps — from idea to production — without needing specialized infrastructure, DevOps, or platform teams. We do this by providing solid, reusable abstractions at both the framework and infrastructure layers. Because we own the underlying open-source framework and the platform it runs on, we can manage the full lifecycle of the application seamlessly.
With Reflex, teams securely connect to company data, use AI to build standardized applications on top of our open-source framework, and deploy with a single click to share across their organization.
We’re replacing the fragmented enterprise stack — and the organizational bottlenecks that come with it.
Founded by Alek Petuskey and Nikhil Rao, Reflex has powered over 1 million applications, earned 28,000+ GitHub stars, and is used by 30% of Fortune 500 companies for internal tools and data-driven applications.
Nikhil Rao
Founder
Alek Petuskey
Founder
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
One of 343 companies held here in B2B › Infrastructure.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
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Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
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What the Full Report on Reflex covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
1 cited source found
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