# Lightmatter funding: rounds and investors > Lightmatter has raised $433M across 3 rounds since 2018. Investors include T. Rowe Price, Google Ventures and Spark Capital. Every round with its source. Source: https://millionrounds.com/company/lightmatter (Millionrounds; every figure on the page links to its filing or article) United States · [Series D startup](https://millionrounds.com/companies) # Who invested in *Lightmatter* 3 rounds we have observed, with the 7 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. AI Big Data & Analytics Cloud Education Valuation: $4.4B, Mar 2026 Follow Lightmatter and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Flightmatter) Funding summary Updated 27 Oct 2026 **$433M** raised across 3 rounds since 2018, from 7 sources **$11M** Series A **$22M** Series A **$400M** Series D - **Latest round:** Series D, $400M Oct 2024 - **Led by:** T. Rowe Price - **Step-up i:** 18.2× - **Investors:** 7 (1 led) 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. 2018 2019 2020 2021 2022 2023 2024 **$11M** Series A **$22M** Series A **$400M** Series D - **First round:** Series A, $11M - **Biggest round:** $400M - **Usual gap between rounds:** 5.7 years ## The rounds - **Oct 2024** Series D **$400M** *3 new* [T. Rowe Price](https://millionrounds.com/fund/t-rowe-price) Lead [Google Ventures](https://millionrounds.com/fund/gv) [Fidelity](https://millionrounds.com/fund/fidelity) Reported by Crunchbase News and 4 others SEC filing: $350M sold, first sale Oct 2024 - **Feb 2019** Series A **$22M** *2 new* [Spark](https://millionrounds.com/fund/spark-3) [GV/ Matrix](https://millionrounds.com/fund/gv-matrix) Reported by FinSMEs SEC filing: $22M sold, first sale Feb 2019 - **Feb 2018** Series A **$11M** *2 new* [Spark Capital](https://millionrounds.com/fund/spark-capital) [Matrix Partners](https://millionrounds.com/fund/matrix-partners) Reported by FinSMEs ## Founders and team From Lightmatter's own website: 6 on the team. - **Simona Jankowski** CFO - **Israel Kandarian** Head of Creative Marketing - **Kurt von Hausen** VP, Cloud Service Provider Sales - **Roy Kim** VP, Product - **Sujatha Wagle** VP, Supply Chain Operations - **Colin Sturt** General Counsel ## 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** 2018 **Series A** 2019 **Series D** 2024 [T. Rowe Price](https://millionrounds.com/fund/t-rowe-price) L [Google Ventures](https://millionrounds.com/fund/gv) [Spark Capital](https://millionrounds.com/fund/spark-capital) [Matrix Partners](https://millionrounds.com/fund/matrix-partners) [Fidelity](https://millionrounds.com/fund/fidelity) [Spark](https://millionrounds.com/fund/spark-3) [GV/ Matrix](https://millionrounds.com/fund/gv-matrix) ## Everyone who backed them [T. Rowe Price](https://millionrounds.com/fund/t-rowe-price) Private equity **1** round, led 1 [Google Ventures](https://millionrounds.com/fund/gv) Corporate VC **1** round [Spark Capital](https://millionrounds.com/fund/spark-capital) VC firm **1** round [Matrix Partners](https://millionrounds.com/fund/matrix-partners) VC firm **1** round [Fidelity](https://millionrounds.com/fund/fidelity) VC firm **1** round [Spark](https://millionrounds.com/fund/spark-3) Growth equity **1** round [GV/ Matrix](https://millionrounds.com/fund/gv-matrix) Investment firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=lightmatter). ## Also claim to have backed them These 9 firms list Lightmatter as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Eastward Capital Partners](https://millionrounds.com/fund/eastward-capital-partners) VC firm Per its own site [Aliya Capital Partners](https://millionrounds.com/fund/aliya-capital-partners) Private equity Per its own site [Hyperspeed Ventures](https://millionrounds.com/fund/hyperspeed-ventures) VC firm Per its own site [SIP Global Partners](https://millionrounds.com/fund/sip-global-partners) VC firm Per its own site [Todd Dagres](https://millionrounds.com/fund/todd-dagres) VC firm Per its own site [GOLDBACH CAPITAL AG](https://millionrounds.com/fund/goldbach-capital-ag) Private credit Per its own site [The JHA Capital](https://millionrounds.com/fund/the-jha-capital) VC firm Per its own site [VIDA Vision Fund](https://millionrounds.com/fund/vida-vision-fund) VC firm Per its own site [West Quad Ventures](https://millionrounds.com/fund/west-quad-ventures) VC firm Per its own site ## Quick answers about Lightmatter ### Who invested in Lightmatter? Lightmatter's investors include T. Rowe Price, Google Ventures, Spark Capital, Matrix Partners and Fidelity, and 2 more on record. T. Rowe Price led its latest round. ### How much has Lightmatter raised? Lightmatter has raised $433M across 3 rounds since 2018. ### When did Lightmatter last raise? Lightmatter's most recent round was a Series D of $400M in Oct 2024, led by T. Rowe Price. ### What was Lightmatter's biggest round? Its most recent round, $400M in Oct 2024, is also its largest on record. ### Who backed Lightmatter first? Lightmatter's first round on record, in Feb 2018, was backed by Spark Capital and Matrix Partners. ### What stage is Lightmatter at? Lightmatter's latest named round is a Series D, in Oct 2024. ### Where is Lightmatter based? Lightmatter is based in the United States. ### Who led Lightmatter's rounds? T. Rowe Price led the Series D in 2024. ## Companies like Lightmatter In the same sector, and raised in the last eighteen months. [**Ayar Labs** $904M · Oct 2026](https://millionrounds.com/company/ayar-labs)[**Bedrock Robotics** $870M · Oct 2026](https://millionrounds.com/company/bedrock-robotics)[**Simile** $600M · Oct 2026](https://millionrounds.com/company/simile)[**Overwatch** $15M · Oct 2026](https://millionrounds.com/company/overwatch)[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**Caju AI** $3.0M · Oct 2026](https://millionrounds.com/company/caju-ai) ## 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