United States · Funded startup
8 rounds we have observed, with the 28 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Funding summaryUpdated 26 Oct 2026
$1.2Braised across 8 rounds since 2007, from 8 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by masshightech.com
No investor was named in the report.
Reported by altassets.netSEC filing: $5.2M sold, first sale Dec 2009
Reported by blog.twitter.comSEC filing: $98M sold, first sale Sept 2009
Reported by techcrunch.com
Spark Capital
Union Square Ventures
Bezos Expeditions
Digital Garage (TSE: 4819)
Timothy FerrissReported by techcrunch.com
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Spark CapitalUnion Square Ventures
CRV
Benchmark
IVP
T. Rowe Price
Lowercase CapitalDigital Garage (TSE: 4819)
Chris Sacca
SV AngelFrom historical deal records. Wrong? Tell us.
Missing a round, or an investor who was in one? Tell us.
Twitter's investors include Spark Capital, Union Square Ventures, CRV, Benchmark and IVP, and 23 more on record.
Twitter has raised $1.2B across 8 rounds since 2007.
Twitter's most recent round was a Secondary of $400M in Sept 2011.
Its most recent round, $400M in Sept 2011, is also its largest on record.
Twitter's first round on record, in Jul 2007, was backed by SV Angel, CRV and Union Square Ventures and 9 others.
Twitter's latest named round is a Secondary, in Sept 2011.
Twitter is based in the United States.
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United States · 
