# Onkos Surgical funding: rounds and investors > Onkos Surgical has raised $85M across 4 rounds since 2015. Investors include Canaan, 3D Systems and 1315 Capital. Every round with its source. Source: https://millionrounds.com/company/onkos-surgical (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Onkos Surgical* 4 rounds we have observed, with the 4 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 Healthcare Raised 3 months ago Funding summary Updated 26 Oct 2026 **$85M** raised across 4 rounds since 2015, from 4 sources **$18M** Series B **$30M** Debt **$37M** Round - **Latest round:** Round, $37M Aug 2026 - **Step-up i:** 1.2× - **Investors:** 4 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. 2017 2019 2021 2023 2025 **?** Series A **$18M** Series B **$30M** Debt **$37M** Round - **First round:** Series A - **Biggest round:** $37M - **Usual gap between rounds:** 19 months ## The rounds - **Aug 2026** Round **$37M** No investor was named in the report. Filed with the SEC (Form D); no report of this raise yet SEC filing: $37M sold, first sale Aug 2026 - **Jan 2025** Debt **$30M** *1 new* [Canaan](https://millionrounds.com/fund/canaan-partners) Source recorded - **Apr 2017** Series B **$18M** *2 new* [3D Systems](https://millionrounds.com/fund/3d-systems) Canaan Partners/ 1315 Reported by FinSMEs SEC filing: $13M sold, first sale Apr 2017 - **Oct 2015** Series A **Amount undisclosed** *1 new* [1315 Capital](https://millionrounds.com/fund/1315-capital) From a historical funding record SEC filing: $6.1M sold, first sale Oct 2015 ## Founders and team From Onkos Surgical's own website: 1 founder, 5 on the team. **Patrick Treacy** Founder and Chief Executive Officer - **Arley Perez** Vice President, Product Development - **Bradly Tyler** Senior Vice President, Finance and Administration - **Gordon Ballard** Senior Vice President, Operations and Human Resources - **Len Tokish** Vice President, Quality Assurance and Regulatory Affairs - **Gary Thomas** Chief Operating Officer ## 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** 2015 **Series B** 2017 **Debt** 2025 **Round** 2026 [Canaan](https://millionrounds.com/fund/canaan-partners) [3D Systems](https://millionrounds.com/fund/3d-systems) [1315 Capital](https://millionrounds.com/fund/1315-capital) Canaan Partners/ 1315 ## Everyone who backed them [Canaan](https://millionrounds.com/fund/canaan-partners) VC firm **1** round [3D Systems](https://millionrounds.com/fund/3d-systems) Corporate VC **1** round [1315 Capital](https://millionrounds.com/fund/1315-capital) Private equity **1** round Canaan Partners/ 1315 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=onkos-surgical). ## Also claim to have backed them This firm lists Onkos Surgical 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. [Rocky Point Ventures](https://millionrounds.com/fund/rocky-point-ventures) Family office Per its own site ## Quick answers about Onkos Surgical ### Who invested in Onkos Surgical? Onkos Surgical's investors include Canaan, 3D Systems, 1315 Capital and Canaan Partners/ 1315. ### How much has Onkos Surgical raised? Onkos Surgical has raised $85M across 4 rounds since 2015. One round did not disclose an amount, so the total is a floor. ### When did Onkos Surgical last raise? Onkos Surgical's most recent round, $37M, was in Aug 2026. ### What was Onkos Surgical's biggest round? Its most recent round, $37M in Aug 2026, is also its largest on record. ### Who backed Onkos Surgical first? Onkos Surgical's first round on record, in Oct 2015, was backed by 1315 Capital. ### What stage is Onkos Surgical at? Onkos Surgical's latest named round is a Debt, in Jan 2025. ### Where is Onkos Surgical based? Onkos Surgical is based in the United States. ## Companies like Onkos Surgical 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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio) ## 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