# VoltDB funding: rounds and investors > VoltDB has raised $38M across 6 rounds since 2010. Investors include Kepha Partners, Sigma Partners and Sigma Prime Ventures. Every round with its source. Source: https://millionrounds.com/company/voltdb (Millionrounds; every figure on the page links to its filing or article) United States · [Series C startup](https://millionrounds.com/companies) # Who invested in *VoltDB* 6 rounds we have observed, with the 3 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. Telecoms Funding summary Updated 26 Oct 2026 **$38M** raised across 6 rounds since 2010, from 6 sources **$5.0M** Series A **$590K** Series A **$5.0M** Venture **$8.0M** Series B **$9.8M** Venture **$10M** Series C - **Latest round:** Series C, $10M Oct 2019 - **Investors:** 3 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 2014 2016 2018 **$5.0M** Series A **$590K** Series A **$5.0M** Venture **$8.0M** Series B **$9.8M** Venture **$10M** Series C - **First round:** Series A, $5.0M - **Biggest round:** $10M - **Usual gap between rounds:** 19 months ## The rounds - **Oct 2019** Series C **$10M** No investor was named in the report. Reported by FinSMEs SEC filing: $10M sold, first sale Oct 2019 - **Jul 2015** Venture **$9.8M** *1 new* *1 returning* [Kepha Partners](https://millionrounds.com/fund/kepha-partners) [Sigma Prime Ventures](https://millionrounds.com/fund/sigma-prime-ventures) From a historical funding record SEC filing: $9.8M sold, first sale Jul 2015 - **Mar 2014** Series B **$8.0M** *2 returning* [Sigma Partners](https://millionrounds.com/fund/sigma-partners) [Kepha Partners](https://millionrounds.com/fund/kepha-partners) From a historical funding record SEC filing: $8.0M sold, first sale Feb 2014 - **Aug 2012** Venture **$5.0M** No investor was named in the report. Reported by bizjournals.com SEC filing: $5.6M sold, first sale Aug 2010 - **Apr 2012** Series A **$590K** *2 returning* [Sigma Partners](https://millionrounds.com/fund/sigma-partners) [Kepha Partners](https://millionrounds.com/fund/kepha-partners) Reported by masshightech.com SEC filing: $5.6M sold, first sale Aug 2010 - **Sept 2010** Series A **$5.0M** *2 new* [Sigma Partners](https://millionrounds.com/fund/sigma-partners) [Kepha Partners](https://millionrounds.com/fund/kepha-partners) Reported by masshightech.com SEC filing: $5.0M sold, first sale Aug 2010 ## Founders and team From the SEC filings it signed: 1 on the team. - **David Flower** Executive Officer, Director i On the board, as filed i *Andreas Bechtolsheim* *Eric Schurr* *Imad Mouline* *John Mandile* *Josaphat Tango* ## 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. **Series A** 2010 **Series A** 2012 **Venture** 2012 **Series B** 2014 **Venture** 2015 **Series C** 2019 [Kepha Partners](https://millionrounds.com/fund/kepha-partners) [Sigma Partners](https://millionrounds.com/fund/sigma-partners) [Sigma Prime Ventures](https://millionrounds.com/fund/sigma-prime-ventures) ## Everyone who backed them [Kepha Partners](https://millionrounds.com/fund/kepha-partners) VC firm **4** rounds [Sigma Partners](https://millionrounds.com/fund/sigma-partners) VC firm **3** rounds [Sigma Prime Ventures](https://millionrounds.com/fund/sigma-prime-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=voltdb). ## Quick answers about VoltDB ### Who invested in VoltDB? VoltDB's investors include Kepha Partners, Sigma Partners and Sigma Prime Ventures. ### How much has VoltDB raised? VoltDB has raised $38M across 6 rounds since 2010. ### When did VoltDB last raise? VoltDB's most recent round was a Series C of $10M in Oct 2019. ### What was VoltDB's biggest round? Its most recent round, $10M in Oct 2019, is also its largest on record. ### Who backed VoltDB first? VoltDB's first round on record, in Sept 2010, was backed by Sigma Partners and Kepha Partners. ### What stage is VoltDB at? VoltDB's latest named round is a Series C, in Oct 2019. ### Where is VoltDB based? VoltDB is based in the United States. ## Companies like VoltDB In the same sector, and raised in the last eighteen months. [**TruAgents** $3.4M · Oct 2026](https://millionrounds.com/company/truagents)[**Qualitate** $32M · Oct 2026](https://millionrounds.com/company/qualitate)[**Clockout** $5.5M · Oct 2026](https://millionrounds.com/company/clockout)[**Hubble Network** $270M · Sept 2026](https://millionrounds.com/company/hubble-network)[**Delos Data** $100M · Sept 2026](https://millionrounds.com/company/delos-data)[**Celero Communications** $375M · Sept 2026](https://millionrounds.com/company/celero-communications) ## 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