Persist AI

Persist AI is a biotechnology company that builds long-acting microsphere formulations.

Health and bio Robotics and hardware EducationY CombinatorPioneer Fund

Latest funding

$12M Series A · May 19, 2025

Led by Spero Ventures · Source: fundraisingfox.com

Total raised: $16.5M* across 3 sourced rounds

All 3 rounds ↓

Website: persist-ai.com.

LinkedIn: persist-ai.

Categories: Health and bio Robotics and hardware Education.

Sectors: Healthcare, Drug Discovery and Delivery, Machine Learning, Robotics, Microfluidics, Nanotechnology.

Stage: Series A.

Based in: Sacramento, United States.

Total raised: $16.5M* in 3 sourced rounds.

Last round: May 19, 2025 · 542 days ago.

Team: 6 people on the team page.

On Recent Funding since: Sep 28, 2026.

Signals

Website registeredJun 15, 2022 (4 years old)

TIMELINE · MONEY RAISED

Persist AI | 415 days from website to first raise on record

Raised $16M in 2 sourced rounds·1 signal before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

May 19, 2025
Series A · $12M
SSpero Ventures (lead), FFord Street Ventures, GGlobal Brain Corporation, GGood AI Capital, IInnospark Ventures, MMBX Capital, PPurdue Strategic Ventures, SShimadzu FIF, SSignalFire, YY Combinator
Source: fundraisingfox.com
August 4, 2023
Seed · $4M
22048 Ventures (lead), FFellows Fund, IInnospark Ventures, JJovono, PPioneer Fund, YY Combinator
Source: vcnewsdaily.com
June 15, 2022
Website created
Date unknown
Round · $500K*
YY Combinator
Source: ycombinator.com

Founders and team

KR
Karthik Raman, PhD Co-Founder & CEO

LinkedIn · source: foundertrace.com
CS
Christopher Shelner Founder

Investors

Companies like Persist AI

HHelicoreSeries A · Jan 2025
DDelixSeries A · Nov 2026
OOcciGuide
DDebut$20M · Aug 2025

Other companies backed by Spero Ventures

TTiny Health$33M Series B+ · Sep 2026
MMobius Materials$3M Seed · Dec 2025
RRemark$16M Series A · Jul 2025
MMast Reforestation$25M Series B+ · Feb 2025
AAralez Bio$12M Series A · Oct 2024

Spero Ventures portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/persist-ai (get a free API key).