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Dropbox's Biggest Acquisition Ever: $350 Million for AI Storage Startup Tigris Data

Productivity · By: AIReport Admin · 3 hours ago · 👁 18
Dropbox's Biggest Acquisition Ever: $350 Million for AI Storage Startup Tigris Data

Dropbox agreed to buy Tigris Data, a Sunnyvale startup selling S3-compatible object storage with no egress fees, for about $350 million in cash, its largest acquisition ever and $120 million above the HelloSign deal. The 8-K signed November 3 targets a Q4 close, alongside the launch of Dropbox's new DBX Agent Cloud.

Dropbox has agreed to acquire Tigris Data for about $350 million in cash, the largest acquisition in the company's history and roughly $120 million more than it paid for HelloSign in 2019. The definitive agreement was signed November 3 according to a Form 8-K, with closing expected in the fourth quarter of 2026 subject to customary conditions, and the price has not been disclosed in Dropbox's own press release.

Tigris, founded in 2021 in Sunnyvale by former Uber engineers, sells S3-compatible object storage, meaning storage that speaks Amazon's S3 interface so developers can keep data across clouds without lock-in or egress fees. Crunchbase counts about $31.9 million raised in total, including a $25 million Series A in October 2025 led by Spark Capital with Andreessen Horowitz and Basis Set Ventures participating. That puts the price at roughly 11 times the capital Tigris had disclosed raising.

The deal sits alongside the launch of DBX Agent Cloud, Dropbox's new infrastructure product. It starts as standalone S3-compatible object storage that works with tools built for Amazon S3, with filesystem and content-processing features promised next, though no dates have been given. It is the first acquisition in Dropbox's history aimed at selling infrastructure to other builders rather than software to knowledge workers; its earlier large deals, HelloSign at $230 million, DocSend at $165 million and FormSwift at $95 million, were all collaboration software.

"Tigris brings a product already running in production, and Agent Cloud opens a new developer and infrastructure market for Dropbox," chief business officer Eric Webster told Crunchbase News. Dropbox co-chief executive Ashraf Alkarmi framed the strategy in the release: "The value of AI depends on the content and context it can work with."

That context is the pitch. Dropbox says the AI features inside its file product have already reached more than 70,000 teams, currently limited to eligible Standard and Advanced teams in the US, UK and Australia in English, with broader availability planned for 2027. Owning the storage layer underneath gives the company a way to serve agents that need to read, index and act on unstructured content at scale, rather than renting that capability from cloud providers.

Tigris CEO Ovais Tariq told TechCrunch at the time of its Series A that the company had grown 8x every year since founding, a single-source company claim with no base figure attached. Neither Dropbox nor Tigris has published Tigris revenue, so the $350 million price is being judged against funding, not sales.

The acquisition also signals a broader shift: the agent era is pulling application companies down the stack into infrastructure. If AI agents become the primary way businesses work with their documents, whoever owns the object storage, the indexing and the permissions underneath has a defensible position that file-sync features alone no longer provide. The date to watch is December 31, the end of the quarter in which Dropbox says it expects to close.

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