Dropbox
Summary ipo Updated Mar 19, 2026This profile is AI-generated. If you spot an error, please help us fix it by sharing a URL to the correct information.
Investors
Founders
About
Dropbox is a cloud storage and file-sharing platform founded in 2007 by MIT students Drew Houston and Arash Ferdowsi 12. The company participated in Y Combinator’s Summer 2007 batch, receiving an initial $15,000 investment for 7% equity 23. Sequoia Capital provided $1.2 million in convertible debt shortly after 3. Dropbox went public on the Nasdaq on March 23, 2018 1. Sequoia Capital owned approximately 25% of the company before the IPO, yielding a return of $2-3 billion on its early investments 3.
Funding History
| Round | Date | Amount | Lead Investor(s) | Key Co-Investors | Valuation |
|---|---|---|---|---|---|
| Seed (YC S07) | 2007-06-26 | $15K | Y Combinator | — | — 6 |
| Seed Extension | 2007-09 | $1.2M | Sequoia Capital | — | — 37 |
| Series A | 2008-10 | $6M | Sequoia Capital | Accel Partners | $25M 3 |
| Series B | 2011-10-18 | $250M | Index Ventures | Benchmark, Goldman Sachs, Greylock Partners, IVP, RIT Capital Partners, Valiant Capital Partners, Sequoia Capital, Accel Partners, Hadi Partovi, Ali Partovi | $4B 89 |
| Series C | 2014-01 | $350M | BlackRock | Fidelity, Salesforce | $10B |
| IPO (NASDAQ: DBX) | 2018-03-23 | $756M | — | — | $9.2B (at $21/share offer); closed day one ~$12.7B 101112 |
Notes: Seed round reflects YC’s initial check dated 2007-06-26 6; Demo Day (Mountain View) followed on 2007-08-16, leading to the Sequoia seed extension in September 2007 67. IPO pricing occurred after market close on 2018-03-22 at $21/share (above the $18-$20 range); shares began trading on Nasdaq on 2018-03-23 and opened at $29 101112.
What Investors Say
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What Founders Say
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Sources
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Dropbox, Wikipedia, accessed March 2026. https://en.wikipedia.org/wiki/Dropbox↩↩↩
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Medium, “Dropbox — The Idea, Viral Video Breakthrough, Y-Combinator,” accessed March 2026. https://medium.com/the-entrepreneurs-manifesto/dropbox-the-idea-viral-video-breakthrough-y-combinator-3016ca1ca52b↩↩↩
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Equities.com, “How Sequoia’s $2 Billion Dropbox Win Became as Big as It Is,” accessed March 2026. https://www.equities.com/impact-investing/how-sequoia-s-2-billion-dropbox-win-became-as-big-as-it-is/↩↩↩↩↩↩
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Clay, “How Much Did Dropbox Raise? Funding & Key Investors,” accessed March 2026. https://www.clay.com/dossier/dropbox-funding↩
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PitchBook, “A brief history of Dropbox, from founding to imminent IPO,” accessed March 2026. https://pitchbook.com/news/articles/a-brief-history-of-dropbox-datagraphic↩
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Y Combinator, “Congrats Dropbox!” (noting Jessica Livingston wrote Dropbox’s first investment check on June 26, 2007; Mountain View Demo Day on August 16, 2007), accessed April 2026. https://www.ycombinator.com/blog/congratsdropbox↩↩↩↩
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TechCrunch, “Secretive Storage Company Dropbox Took Sequoia Funding in 2007,” September 4, 2008, accessed April 2026. https://techcrunch.com/2008/09/04/secretive-storage-company-dropbox-took-sequoia-funding-in-2007/↩↩↩
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Business Wire, “Dropbox Raises $250 Million in Series B Funding,” October 18, 2011, accessed April 2026. https://www.businesswire.com/news/home/20111018006048/en/Dropbox-Raises-250-Million-in-Series-B-Funding↩↩
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TechCrunch, “Dropbox Raises $250M In Funding, Boasts 45 Million Users,” October 18, 2011, accessed April 2026. https://techcrunch.com/2011/10/18/dropbox-raises-250m-in-funding-boasts-45-million-users/↩↩
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Bloomberg, “Dropbox Raises $756 Million After Pricing IPO Above Range,” March 22, 2018, accessed April 2026. https://www.bloomberg.com/news/articles/2018-03-22/dropbox-said-to-raise-756-million-after-pricing-ipo-above-range↩↩↩
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CNBC, “Dropbox (DBX) IPO: Stock starts trading on the Nasdaq,” March 23, 2018, accessed April 2026. https://www.cnbc.com/2018/03/23/dropbox-dbx-ipo-stock-starts-trading-on-the-nasdaq.html↩↩↩
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SiliconANGLE, “After raising $756M in its IPO, Dropbox sees shares jump 36% in market debut,” March 22, 2018, accessed April 2026. https://siliconangle.com/2018/03/22/market-rout-dropbox-hikes-ipo-price-21-share-raising-tidy-756m/↩↩↩