# Sift Science funding: rounds and investors > Sift Science has raised $107M across 5 rounds since 2011. Investors include SV Angel, First Round Capital and Founder Collective. Every round with its source. Source: https://millionrounds.com/company/sift-science (Millionrounds; every figure on the page links to its filing or article) United States · [Series D startup](https://millionrounds.com/companies) # Who invested in *Sift Science* 5 rounds we have observed, with the 20 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. Cybersecurity Y Combinator: Summer 2011 Funding summary Updated 26 Oct 2026 **$107M** raised across 5 rounds since 2011, from 5 sources **$1.6M** Seed **$4.0M** Series A **$18M** Series B **$30M** Series C **$53M** Series D - **Latest round:** Series D, $53M Mar 2018 - **Step-up i:** 1.8× - **Investors:** 20 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2012 2013 2014 2015 2016 2017 2018 **$1.6M** Seed **$4.0M** Series A **$18M** Series B **$30M** Series C **$53M** Series D - **First round:** Seed, $1.6M - **Biggest round:** $53M - **Usual gap between rounds:** 20 months ## The rounds - **Mar 2018** Series D **$53M** *3 new* [Spark](https://millionrounds.com/fund/spark-3) Insight Stripes Group/ Union Square Reported by FinSMEs - **Jul 2016** Series C **$30M** *1 new* [Insight Partners](https://millionrounds.com/fund/insight-venture-partners) Reported by FinSMEs - **May 2014** Series B **$18M** *1 new* *3 returning* [First Round Capital](https://millionrounds.com/fund/first-round-capital) [Spark Capital](https://millionrounds.com/fund/spark-capital) [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) [Max Levchin](https://millionrounds.com/fund/max-levchin) From a historical funding record - **Mar 2013** Series A **$4.0M** *5 new* *2 returning* [Y Combinator](https://millionrounds.com/fund/y-combinator) [SV Angel](https://millionrounds.com/fund/sv-angel) [First Round Capital](https://millionrounds.com/fund/first-round-capital) [Founder Collective](https://millionrounds.com/fund/founder-collective) [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) [Chris Dixon](https://millionrounds.com/fund/chris-dixon) [Rich Barton](https://millionrounds.com/fund/rich-barton) Reported by techcrunch.com - **Sept 2011** Seed **$1.6M** *10 new* [SV Angel](https://millionrounds.com/fund/sv-angel) [Founder Collective](https://millionrounds.com/fund/founder-collective) [Alexis Ohanian](https://millionrounds.com/fund/alexis-ohanian) [Marc Benioff](https://millionrounds.com/fund/marc-benioff) [Max Levchin](https://millionrounds.com/fund/max-levchin) [Garry Tan](https://millionrounds.com/fund/garry-tan) [Lee Linden](https://millionrounds.com/fund/lee-linden) [Harjeet Taggar](https://millionrounds.com/fund/harjeet-taggar) [Kevin Scott](https://millionrounds.com/fund/kevin-scott) [Alex Rampell](https://millionrounds.com/fund/alex-rampell) From a historical funding record ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Seed** 2011 **Series A** 2013 **Series B** 2014 **Series C** 2016 **Series D** 2018 [SV Angel](https://millionrounds.com/fund/sv-angel) [First Round Capital](https://millionrounds.com/fund/first-round-capital) [Founder Collective](https://millionrounds.com/fund/founder-collective) [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) [Max Levchin](https://millionrounds.com/fund/max-levchin) [Y Combinator](https://millionrounds.com/fund/y-combinator) [Insight Partners](https://millionrounds.com/fund/insight-venture-partners) [Spark Capital](https://millionrounds.com/fund/spark-capital) [Alexis Ohanian](https://millionrounds.com/fund/alexis-ohanian) [Marc Benioff](https://millionrounds.com/fund/marc-benioff) ## Everyone who backed them [SV Angel](https://millionrounds.com/fund/sv-angel) VC firm **2** rounds [First Round Capital](https://millionrounds.com/fund/first-round-capital) VC firm **2** rounds [Founder Collective](https://millionrounds.com/fund/founder-collective) VC firm **2** rounds [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) VC firm **2** rounds [Max Levchin](https://millionrounds.com/fund/max-levchin) VC firm **2** rounds [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round [Insight Partners](https://millionrounds.com/fund/insight-venture-partners) VC firm **1** round [Spark Capital](https://millionrounds.com/fund/spark-capital) VC firm **1** round [Alexis Ohanian](https://millionrounds.com/fund/alexis-ohanian) Angel **1** round [Marc Benioff](https://millionrounds.com/fund/marc-benioff) VC firm **1** round [Garry Tan](https://millionrounds.com/fund/garry-tan) Angel **1** round [Chris Dixon](https://millionrounds.com/fund/chris-dixon) VC firm **1** round [Spark](https://millionrounds.com/fund/spark-3) Growth equity **1** round [Lee Linden](https://millionrounds.com/fund/lee-linden) VC firm **1** round [Rich Barton](https://millionrounds.com/fund/rich-barton) Angel **1** round [Harjeet Taggar](https://millionrounds.com/fund/harjeet-taggar) VC firm **1** round [Kevin Scott](https://millionrounds.com/fund/kevin-scott) Angel **1** round [Alex Rampell](https://millionrounds.com/fund/alex-rampell) Angel **1** round Insight no record of our own yet **1** round Stripes Group/ Union Square no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=sift-science). ## Quick answers about Sift Science ### Who invested in Sift Science? Sift Science's investors include SV Angel, First Round Capital, Founder Collective, Union Square Ventures and Max Levchin, and 15 more on record. ### How much has Sift Science raised? Sift Science has raised $107M across 5 rounds since 2011. ### When did Sift Science last raise? Sift Science's most recent round was a Series D of $53M in Mar 2018. ### What was Sift Science's biggest round? Its most recent round, $53M in Mar 2018, is also its largest on record. ### Who backed Sift Science first? Sift Science's first round on record, in Sept 2011, was backed by SV Angel, Founder Collective and Alexis Ohanian and 7 others. ### What stage is Sift Science at? Sift Science's latest named round is a Series D, in Mar 2018. ### Where is Sift Science based? Sift Science is based in the United States. ## Companies like Sift Science In the same sector, and raised in the last eighteen months. [**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Opsin** $21M · Oct 2026](https://millionrounds.com/company/opsin)[**Harmonic Security** $68M · Oct 2026](https://millionrounds.com/company/harmonic-security)[**Reach Security** $60M · Oct 2026](https://millionrounds.com/company/reach-security)[**Persona** $210M · Oct 2026](https://millionrounds.com/company/persona)[**Hilt** $4.7M · Oct 2026](https://millionrounds.com/company/hilt) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app