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Build1 publisher3 min readPublished

Seven buyers put $82.06m of preferred stock into Firecrawl at 5.7 times its Series A

The Form D filed on September 14th dates the first sale to August 31st, 2026. The case for that much money rests on figures Firecrawl reports itself: 180,300 GitHub stars and an ARR claim on its Y Combinator profile.

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Photograph accompanying Seven buyers put $82.06m of preferred stock into Firecrawl at 5.7 times its Series A
Photo: yahoo.com

What happened

  • Firecrawl told the SEC in a Form D filed on September 14th that it had sold $82,063,463 of preferred stock to seven investors.
  • The raise is 5.7 times the $14.5 million Series A that Nexus Venture Partners led in 2025, and the filing dates the first sale to August 31st, 2026.
  • Firecrawl's Y Combinator profile says it reached eight figures of ARR in its first year and more than doubled that in its second, without giving an exact figure or period.

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Why it matters

  • decision A team standing up retrieval picks which side of the split to own: the hosted API's price and limits, or the JavaScript rendering, retries and proxy pool that self-hosting hands back.
  • exposure Anyone whose agent calls the hosted endpoints now depends on a vendor with the balance sheet to spend ahead of demand on indexing, browsers and proxies, and to set prices accordingly.
  • contradiction RuntimeWire says Firecrawl must still turn open-source distribution into durable enterprise revenue, while the Y Combinator profile and Peffer's 2025 profitability claim describe a company already selling.

The job Firecrawl sells is the one sitting underneath every retrieval product: keeping crawlers alive against pages built for people. Caleb Peffer, Nicolas Silberstein Camara and Eric Ciarla hit it while running Mendable, an AI search product for technical documentation, where feeding the application clean current text meant maintaining crawlers, rendering JavaScript and pulling useful content out of messy pages [8]. They packaged the bottleneck and sold it. Firecrawl's APIs now search, scrape, crawl and interact with the live web, returning Markdown, structured JSON, screenshots and extracted fields [9].

For an adopting team that split is the decision. Call the hosted API and somebody else's headless browsers and proxy pool absorb the failure modes, at their price. Run the open-source repository yourself and you take back the rendering, the retries and the proxies. RuntimeWire, which discloses that it has been a Firecrawl customer for more than a year [18], writes that the new money buys room to spend ahead of demand on indexing, browser infrastructure, proxies, reliability and enterprise sales without rationing capacity around near-term cash flow [16]. Those are the same line items a self-hoster pays for in engineer time. RuntimeWire puts Tavily and Exa on search and retrieval, Apify and Bright Data on scraping infrastructure, and Browser Use on browser agents [17].

The repository stood at about 180,300 GitHub stars on September 14th, up from roughly 48,000 when the Series A was announced on August 19th, 2025 [10]. That is about 3.8 times in a little under 13 months [1][2]. RuntimeWire notes that stars are a distribution measure and not a revenue figure [11]. For the funnel to carry $82 million, a stable fraction of the developers who star or self-host has to move onto the paid service and stay there. Firecrawl self-reports 1.25 million developers, more than 150,000 organizations and more than 5 billion requests served, and shows customer logos including Apple, Canva, Shopify, Alibaba and DoorDash [12].

The revenue side is looser than the paperwork. Firecrawl's Y Combinator profile says it reached eight figures in annual recurring revenue in its first year and more than doubled that in its second, which read literally puts ARR above $20 million, with no exact figure or reporting period attached [13]. Peffer told TechCrunch in August 2025 that the company was profitable at the time [14]. Set $82,063,463 against a $20 million floor and the financing is roughly four times current ARR in cash [3].

What the Form D itself records is narrow. SideGuide Technologies Inc., the legal issuer, described the securities as preferred stock and common stock issuable upon conversion, put no cap on the offering, and marked it as lasting less than one year [5]. The filing does not identify the seven investors, a valuation or a conventional round label, and records no sales commissions or finder's fees [6]. First sale was August 31st, 2026; the notice reached the SEC 14 days later [4]. Counting the new proceeds as separate from the $16.2 million reported after the Series A, Firecrawl has now disclosed at least $98.3 million, and its about page still displays the $16.2 million figure [7], $82.1 million behind the company's own SEC filings [5].

What to watch

  • Whether hosted API pricing or rate limits change now that $82.06 million is in, and whether the repository's license moves with them.
  • An amended filing or an announcement that names the seven investors and attaches a valuation to the August 31st, 2026 first sale.
  • Whether the Y Combinator ARR claim is ever restated with a reporting period attached.
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