# Quantum Diamond Technologies funding: rounds and investors > Quantum Diamond Technologies has raised $500K across 2 rounds since 2020. Investors include National Science Foundation and MassVentures. Source: https://millionrounds.com/company/quantum-diamond-technologies (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *Quantum Diamond Technologies* 2 rounds we have observed, with the 2 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. Biotech Funding summary Updated 26 Oct 2026 **$500K** raised across 2 rounds since 2020, from 2 sources - **Latest round:** Venture Feb 2023 - **Biggest round:** $500K Grant · Jun 2020 - **Investors:** 2 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. 2021 2022 2023 **$500K** Grant **?** Venture - **First round:** Grant, $500K - **Biggest round:** $500K - **Between rounds:** 2.7 years ## The rounds - **Feb 2023** Venture **Amount undisclosed** *2 returning* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [MassVentures](https://millionrounds.com/fund/massventures) Source recorded - **Jun 2020** Grant **$500K** *2 new* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [MassVentures](https://millionrounds.com/fund/massventures) Source recorded ## Founders and team From Quantum Diamond Technologies's own website: 1 founder, 4 on the team. **Colin Connolly** CEO, CTO, QDTI Co-founder - **Jeff Krogmeier** COO, Engineering - **Anatoly Konukhov** Director, Business Development - **Jason Cleveland** Board Chairman - **Matthias Winter** Board Member Advisers *David Hanlon* *Hongkun Park* *Mikhail Lukin* *Peter Maurer* *Ronald Walsworth* ## 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. **Grant** 2020 **Venture** 2023 [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [MassVentures](https://millionrounds.com/fund/massventures) ## Everyone who backed them [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **2** rounds [MassVentures](https://millionrounds.com/fund/massventures) VC firm **2** rounds Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=quantum-diamond-technologies). ## Quick answers about Quantum Diamond Technologies ### Who invested in Quantum Diamond Technologies? Quantum Diamond Technologies's investors include National Science Foundation and MassVentures. ### How much has Quantum Diamond Technologies raised? Quantum Diamond Technologies has raised $500K across 2 rounds since 2020. One round did not disclose an amount, so the total is a floor. ### When did Quantum Diamond Technologies last raise? Quantum Diamond Technologies's most recent round was a Venture in Feb 2023. ### What was Quantum Diamond Technologies's biggest round? Quantum Diamond Technologies's largest round on record is $500K (Grant), in Jun 2020. ### Who backed Quantum Diamond Technologies first? Quantum Diamond Technologies's first round on record, in Jun 2020, was backed by National Science Foundation and MassVentures. ### What stage is Quantum Diamond Technologies at? Quantum Diamond Technologies's latest named round is a Venture, in Feb 2023. ### Where is Quantum Diamond Technologies based? Quantum Diamond Technologies is based in the United States. ## Companies like Quantum Diamond Technologies In the same sector, and raised in the last eighteen months. [**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio) ## 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