# Siluria Technologies funding: rounds and investors > Siluria Technologies has raised $209M across 11 rounds since 2008. Investors include Kleiner Perkins Caufield & Byers, ARCH Venture Partners and Lux Capital. Source: https://millionrounds.com/company/siluria-technologies (Millionrounds; every figure on the page links to its filing or article) United States · [Series E startup](https://millionrounds.com/companies) # Who invested in *Siluria Technologies* 11 rounds we have observed, with the 11 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. Energy Funding summary Updated 26 Oct 2026 **$209M** raised across 11 rounds since 2008, from 11 sources **$3.3M** Series A **$3.3M** Seed **$13M** Series A **$20M** Series B **$30M** Series C **$2.9M** Series C **$33M** Series D **$3.0M** Venture **$30M** Series D **$25M** Series E **$45M** Series E - **Latest round:** Series E, $45M Jul 2016 - **Step-up i:** 1.8× - **Investors:** 11 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. 2008 2010 2012 2014 2016 **$3.3M** Series A **$3.3M** Seed **$13M** Series A **$20M** Series B **$30M** Series C **$2.9M** Series C **$30M** Series D **$25M** Series E **$45M** Series E - **First round:** Series A, $3.3M - **Biggest round:** $45M - **Usual gap between rounds:** 11 months ## The rounds - **Jul 2016** Series E **$45M** *1 returning* [National Petrochemical Industrial Company](https://millionrounds.com/fund/national-petrochemical-industrial-company) Reported by FinSMEs - **Nov 2015** Series E **$25M** *1 new* [National Petrochemical Industrial Company](https://millionrounds.com/fund/national-petrochemical-industrial-company) From a historical funding record SEC filing: $26M sold, first sale Nov 2015 - **Aug 2014** Series D **$30M** *1 new* [Aramco Ventures](https://millionrounds.com/fund/aramco-ventures) From a historical funding record SEC filing: $30M sold, first sale Jul 2014 - **Apr 2013** Venture **$3.0M** *2 returning* [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) From a historical funding record SEC filing: $33M sold, first sale May 2012 - **Jan 2013** Series C **$2.9M** *2 returning* [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) From a historical funding record SEC filing: $33M sold, first sale May 2012 - **Jan 2013** Series D **$33M** No investor was named in the report. Reported by sec.gov SEC filing: $33M sold, first sale May 2012 - **Jul 2012** Series C **$30M** *2 new* *7 returning* [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [Lux Capital](https://millionrounds.com/fund/lux-capital) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Alloy Ventures](https://millionrounds.com/fund/alloy-ventures) [Vulcan Capital](https://millionrounds.com/fund/vulcan-capital) [Wellcome Trust](https://millionrounds.com/fund/wellcome-trust) [Presidio Ventures](https://millionrounds.com/fund/presidio-ventures) [Bright Capital](https://millionrounds.com/fund/bright-capital) [Altitude Life Science Ventures](https://millionrounds.com/fund/altitude-life-science-ventures-2) Reported by marketwire.com SEC filing: $30M sold, first sale May 2012 - **Sept 2011** Series B **$20M** *1 new* *6 returning* [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [Lux Capital](https://millionrounds.com/fund/lux-capital) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Alloy Ventures](https://millionrounds.com/fund/alloy-ventures) [Wellcome Trust](https://millionrounds.com/fund/wellcome-trust) [Presidio Ventures](https://millionrounds.com/fund/presidio-ventures) [Altitude Life Science Ventures](https://millionrounds.com/fund/altitude-life-science-ventures-2) Reported by finsmes.com SEC filing: $20M sold, first sale Jun 2011 - **Oct 2010** Series A **$13M** *6 new* [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [Lux Capital](https://millionrounds.com/fund/lux-capital) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Alloy Ventures](https://millionrounds.com/fund/alloy-ventures) [Presidio Ventures](https://millionrounds.com/fund/presidio-ventures) [Altitude Life Science Ventures](https://millionrounds.com/fund/altitude-life-science-ventures-2) Reported by gigaom.com - **Jun 2009** Seed **$3.3M** No investor was named in the report. From a historical funding record SEC filing: $3.3M sold, first sale Jun 2009 - **Jun 2008** Series A **$3.3M** No investor was named in the report. Reported by venturebeat.com ## 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 B** 2011 **Series C** 2012 **Series C** 2013 **Series D** 2013 **Venture** 2013 **Series D** 2014 **Series E** 2015 **Series E** 2016 [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) [Lux Capital](https://millionrounds.com/fund/lux-capital) [Alloy Ventures](https://millionrounds.com/fund/alloy-ventures) [Presidio Ventures](https://millionrounds.com/fund/presidio-ventures) [Altitude Life Science Ventures](https://millionrounds.com/fund/altitude-life-science-ventures-2) [Wellcome Trust](https://millionrounds.com/fund/wellcome-trust) [National Petrochemical Industrial Company](https://millionrounds.com/fund/national-petrochemical-industrial-company) [Vulcan Capital](https://millionrounds.com/fund/vulcan-capital) [Aramco Ventures](https://millionrounds.com/fund/aramco-ventures) ## Everyone who backed them [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) VC firm **5** rounds [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) VC firm **5** rounds [Lux Capital](https://millionrounds.com/fund/lux-capital) VC firm **3** rounds [Alloy Ventures](https://millionrounds.com/fund/alloy-ventures) VC firm **3** rounds [Presidio Ventures](https://millionrounds.com/fund/presidio-ventures) Corporate VC **3** rounds [Altitude Life Science Ventures](https://millionrounds.com/fund/altitude-life-science-ventures-2) Growth equity **3** rounds [Wellcome Trust](https://millionrounds.com/fund/wellcome-trust) Government **2** rounds [National Petrochemical Industrial Company](https://millionrounds.com/fund/national-petrochemical-industrial-company) Growth equity **2** rounds [Vulcan Capital](https://millionrounds.com/fund/vulcan-capital) Family office **1** round [Aramco Ventures](https://millionrounds.com/fund/aramco-ventures) Corporate VC **1** round [Bright Capital](https://millionrounds.com/fund/bright-capital) Investment firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=siluria-technologies). ## Also claim to have backed them This firm lists Siluria Technologies as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above. [Smart Energy News](https://millionrounds.com/fund/smart-energy-news) VC firm Per its own site ## Quick answers about Siluria Technologies ### Who invested in Siluria Technologies? Siluria Technologies's investors include Kleiner Perkins Caufield & Byers, ARCH Venture Partners, Lux Capital, Alloy Ventures and Presidio Ventures, and 6 more on record. ### How much has Siluria Technologies raised? Siluria Technologies has raised $209M across 11 rounds since 2008. ### When did Siluria Technologies last raise? Siluria Technologies's most recent round was a Series E of $45M in Jul 2016. ### What was Siluria Technologies's biggest round? Its most recent round, $45M in Jul 2016, is also its largest on record. ### Who backed Siluria Technologies first? Siluria Technologies's first round on record, in Oct 2010, was backed by Kleiner Perkins Caufield & Byers, Lux Capital and ARCH Venture Partners and 3 others. ### What stage is Siluria Technologies at? Siluria Technologies's latest named round is a Series E, in Jul 2016. ### Where is Siluria Technologies based? Siluria Technologies is based in the United States. ## Companies like Siluria Technologies In the same sector, and raised in the last eighteen months. [**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**Pivot Energy** $500M · Oct 2026](https://millionrounds.com/company/pivot-energy)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor) ## 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