United States · 
Who invested in Sydnexis?
Sydnexis's investors include RA Capital Management and Longitude Capital.
United States · Series B startup
Who invested in Sydnexis
Funding summaryUpdated 26 Oct 2026
$45Mraised across 1 round since 2021, from 1 source
- Latest round
- Series B, $45MAug 2021
- Investors
- 2
The rounds
- Aug 2021Series B$45M
Source recordedSEC filing: $46M sold, first sale Aug 2021
Founders and team
From Sydnexis's own website: 5 on the team.
- Perry J. SternbergChief Executive Officer
- Paul ChuVice President, Finance and Business Development
- Nick RuthChief Commercial Officer
- Jeffry WeinhuffChairman of the Board of Sydnexis
- Laura ScottExecutive Business Partner to Perry Sternberg
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 2 firms list Sydnexis 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.
Bluestem CapitalPrivate equityPer its own site
Quick answers about Sydnexis
How much has Sydnexis raised?
Sydnexis has raised $45M across 1 round since 2021.
When did Sydnexis last raise?
Sydnexis's most recent round was a Series B of $45M in Aug 2021.
What was Sydnexis's biggest round?
Its most recent round, $45M in Aug 2021, is also its largest on record.
Who backed Sydnexis first?
Sydnexis's first round on record, in Aug 2021, was backed by RA Capital Management and Longitude Capital.
What stage is Sydnexis at?
Sydnexis's latest named round is a Series B, in Aug 2021.
Where is Sydnexis based?
Sydnexis is based in the United States.
Companies like Sydnexis
In the same sector, and raised in the last eighteen months.
Find investors like these
Search every investor by what they have actually funded, then narrow to your stage and market. Free.