# Synlogic funding: rounds and investors > Synlogic has raised $55M across 3 rounds since 2014. Investors include New Enterprise Associates, Atlas Venture and OrbiMed. Every round with its source. Source: https://millionrounds.com/company/synlogic (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Synlogic* 3 rounds we have observed, with the 5 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 **$55M** raised across 3 rounds since 2014, from 3 sources **$29M** Series A **$5.0M** Series A **$21M** Round - **Latest round:** Round, $21M Sept 2023 - **Biggest round:** $29M Series A · Jul 2014 - **Step-up i:** 4.2× - **Investors:** 5 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. 2014 2016 2018 2020 2022 **$29M** Series A **$5.0M** Series A **$21M** Round - **First round:** Series A, $29M - **Biggest round:** $29M - **Usual gap between rounds:** 8.9 years ## The rounds - **Sept 2023** Round **$21M** *2 new* *1 returning* [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [OrbiMed](https://millionrounds.com/fund/orbimed) [Perceptive Advisors](https://millionrounds.com/fund/perceptive-advisors) Source recorded - **Oct 2014** Series A **$5.0M** *1 new* [Gates Foundation](https://millionrounds.com/fund/bill-and-melinda-gates-foundation) From a historical funding record SEC filing: $4.0M sold, first sale Jul 2014 - **Jul 2014** Series A **$29M** *2 new* [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [Atlas Venture](https://millionrounds.com/fund/atlas-venture) From a historical funding record SEC filing: $4.0M sold, first sale Jul 2014 ## Founders and team From Synlogic's own website and the SEC filings it signed: 3 on the team. - **Mary Beth Dooley** Principal Executive Officer And Principal Financial Officer - **Aoife Brennan** Executive Officer, Director i - **Todd Shegog** Executive Officer i On the board, as filed i *Chau Khuong* *Edward Mathers* *Michael Powell* *Nick Leschly* *Patricia Hurter* *Peter Barrett* *Richard P. Shea* ## 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** 2014 **Series A** 2014 **Round** 2023 [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [Atlas Venture](https://millionrounds.com/fund/atlas-venture) [OrbiMed](https://millionrounds.com/fund/orbimed) [Perceptive Advisors](https://millionrounds.com/fund/perceptive-advisors) [Gates Foundation](https://millionrounds.com/fund/bill-and-melinda-gates-foundation) ## Everyone who backed them [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) VC firm **2** rounds [Atlas Venture](https://millionrounds.com/fund/atlas-venture) VC firm **1** round [OrbiMed](https://millionrounds.com/fund/orbimed) Private equity **1** round [Perceptive Advisors](https://millionrounds.com/fund/perceptive-advisors) Asset manager **1** round [Gates Foundation](https://millionrounds.com/fund/bill-and-melinda-gates-foundation) Institutional LP **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=synlogic). ## Quick answers about Synlogic ### Who invested in Synlogic? Synlogic's investors include New Enterprise Associates, Atlas Venture, OrbiMed, Perceptive Advisors and Gates Foundation. ### How much has Synlogic raised? Synlogic has raised $55M across 3 rounds since 2014. ### When did Synlogic last raise? Synlogic's most recent round was an Undisclosed round of $21M in Sept 2023. ### What was Synlogic's biggest round? Synlogic's largest round on record is $29M (Series A), in Jul 2014. ### Who backed Synlogic first? Synlogic's first round on record, in Jul 2014, was backed by New Enterprise Associates and Atlas Venture. ### What stage is Synlogic at? Synlogic's latest named round is an Undisclosed round, in Sept 2023. ### Where is Synlogic based? Synlogic is based in the United States. ## Companies like Synlogic 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