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At least 62 YC startups with over $1.9 billion in funding are hosting on Replit

RuntimeWire

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RUNTIMEWIRE INVESTIGATION — Original analysis

Original reporting by RuntimeWire, based on data analysis, public records.

Why it matters

Replit's enterprise push is showing up in public infrastructure: funded startups are using it for production-facing endpoints, even when their core products remain elsewhere.

Reporting record

Finding<br>A RuntimeWire analysis found 160 Replit-verified hostnames associated with 63 Y Combinator companies, including Aspire, Fountain, GiveCampus, Qventus, Instawork and Pelago.

How we verified<br>Methods: data analysis, public records.<br>RuntimeWire confirmed the connection using two independent public DNS signals: an A record pointing to 34.111.179.208 and a corresponding replit-verify TXT record.

Reproduction<br>Reproduction does not apply to this reporting (document-driven).

Company response<br>The company was not contacted before publication.

A single Google Cloud IP address used by AI coding platform Replit led RuntimeWire to a much larger startup cluster: at least 62 other Y Combinator companies were serving custom domains through the platform on August 18, 2026.

Together, those companies have raised approximately $1.91 billion in disclosed funding. Their 160 verified hostnames offer a concrete sign that AI coding is moving beyond toy demos and into production-facing work at funded startups.

The DNS records cannot show whether Replit's AI agent wrote the code. They do show that people with access to company-controlled domains authorized Replit-hosted endpoints, including tools, portals, landing pages and application components. For founders evaluating whether AI-assisted software creation will persist after the current hype cycle, that distinction matters: the technology is already being attached to real business infrastructure, even when it is not replacing the primary engineering stack.

What RuntimeWire found

160 Replit-verified hostnames associated with 63 companies in the Y Combinator directory, including the platform itself

57 companies listed by YC as active, five as inactive and one as acquired

Approximately $1.91 billion raised by the 62 companies other than Replit

Approximately $2.79 billion raised when the platform's roughly $878 million in disclosed financing is included

Roughly three-quarters of the external capital concentrated among the 10 best-funded companies

The finding gives an outside view of the enterprise adoption that co-founders Amjad Masad and Haya Odeh have spent the past two years pursuing.

Masad, previously a founding engineer at Codecademy and the head of Facebook's JavaScript infrastructure team, repositioned the platform from a browser-based coding environment toward software creation for non-programmers and business teams. The DNS footprint shows that some of that adoption has reached projects connected to heavily funded startups, even when the platform is absent from their public technology stacks.

The largest companies in the cluster

The best-funded names account for most of the capital:

Aspire, a Singapore business-finance platform, says it has raised more than $300 million across equity and debt.

Recruiting software maker Fountain has raised about $219 million.

Education fundraising platform GiveCampus has completed approximately $191 million in disclosed investments.

Flexible staffing marketplace Instawork says its funding totals $160 million.

Substance-use treatment platform Pelago reported $151 million after its 2024 Series C.

Hospital automation provider Qventus has announced investments of $100 million and $105 million since 2022. The latter included a debt component that RuntimeWire excluded from its equity funding calculation.

Commercial insurance platform Shepherd reported $67 million in total funding after a March 2026 round.

Generative video company Tavus has raised about $64 million.

Global insurance provider SafetyWing has raised $47 million.

The cluster also includes microschool operator Prenda.

How the DNS trail worked

RuntimeWire began with 34.111.179.208, an address assigned to Google Cloud infrastructure. Public scans show traffic on the address passing through Replit's deployment layer, while Replit-linked domains use it as an A record for custom-domain publishing.

An IP match alone was insufficient because shared cloud addresses can serve unrelated customers and services. RuntimeWire therefore required two signals:

The hostname pointed to the Replit-linked IP address.

The hostname or its root domain had a TXT record beginning with replit-verify=.

That TXT record is used to...