# PierianDx funding: rounds and investors > PierianDx has raised $57M across 2 rounds since 2019. Investors include SJF Ventures, ATW Partners and OrbiMed. Every round with its source. Source: https://millionrounds.com/company/pieriandx (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *PierianDx* 2 rounds we have observed, with the 8 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 Funding summary Updated 26 Oct 2026 **$57M** raised across 2 rounds since 2019, from 2 sources **$27M** Series B **$30M** Venture - **Latest round:** Venture, $30M Nov 2021 - **Investors:** 8 (2 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. 2020 2021 **$27M** Series B **$30M** Venture - **First round:** Series B, $27M - **Biggest round:** $30M - **Between rounds:** 2 years ## The rounds - **Nov 2021** Venture **$30M** *2 new* *1 returning* [OrbiMed](https://millionrounds.com/fund/orbimed) [SJF Ventures](https://millionrounds.com/fund/sjf-ventures) [Album VC](https://millionrounds.com/fund/album) Source recorded SEC filing: $17M sold, first sale Jun 2021 - **Oct 2019** Series B **$27M** *6 new* [SJF Ventures](https://millionrounds.com/fund/sjf-ventures) Lead [ATW Partners](https://millionrounds.com/fund/atw-partners) Lead [RTI International](https://millionrounds.com/fund/rti-international) [ARUP Laboratories](https://millionrounds.com/fund/arup-laboratories) [Health Catalyst Capital](https://millionrounds.com/fund/health-catalyst-capital-hcc) Inova Health Systems Reported by FinSMEs SEC filing: $22M sold, first sale Nov 2019 ## Founders and team From the SEC filings it signed: 2 on the team. - **Mark McDonough** Executive Officer, Director i - **Rakesh Nagarajan** Executive Officer, Director i On the board, as filed i *Barnard Buscemi* *Bryan Carey* *Frederick Hessler* *Joseph Boorady* *Kerry Propper* ## 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** 2019 **Venture** 2021 [SJF Ventures](https://millionrounds.com/fund/sjf-ventures) L [ATW Partners](https://millionrounds.com/fund/atw-partners) L [OrbiMed](https://millionrounds.com/fund/orbimed) [Album VC](https://millionrounds.com/fund/album) [RTI International](https://millionrounds.com/fund/rti-international) [ARUP Laboratories](https://millionrounds.com/fund/arup-laboratories) [Health Catalyst Capital](https://millionrounds.com/fund/health-catalyst-capital-hcc) Inova Health Systems ## Everyone who backed them [SJF Ventures](https://millionrounds.com/fund/sjf-ventures) VC firm **2** rounds, led 1 [ATW Partners](https://millionrounds.com/fund/atw-partners) Investment firm **1** round, led 1 [OrbiMed](https://millionrounds.com/fund/orbimed) Private equity **1** round [Album VC](https://millionrounds.com/fund/album) VC firm **1** round [RTI International](https://millionrounds.com/fund/rti-international) Government **1** round [ARUP Laboratories](https://millionrounds.com/fund/arup-laboratories) Corporate VC **1** round [Health Catalyst Capital](https://millionrounds.com/fund/health-catalyst-capital-hcc) Private equity **1** round Inova Health Systems 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=pieriandx). ## Quick answers about PierianDx ### Who invested in PierianDx? PierianDx's investors include SJF Ventures, ATW Partners, OrbiMed, Album VC and RTI International, and 3 more on record. ### How much has PierianDx raised? PierianDx has raised $57M across 2 rounds since 2019. ### When did PierianDx last raise? PierianDx's most recent round was a Venture of $30M in Nov 2021. ### What was PierianDx's biggest round? Its most recent round, $30M in Nov 2021, is also its largest on record. ### Who backed PierianDx first? PierianDx's first round on record, in Oct 2019, was backed by SJF Ventures, ATW Partners and RTI International and 3 others. ### What stage is PierianDx at? PierianDx's latest named round is a Venture, in Nov 2021. ### Where is PierianDx based? PierianDx is based in the United States. ### Who led PierianDx's rounds? SJF Ventures led the Series B in 2019. ## Companies like PierianDx 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