Fundraising Fox

Andson Biotech

YC W22

Atlanta, US · Founded 2021 · Delaware corporation · 4 employees · 1 known investors

Andson Biotech develops analytical tools for the analysis of biotherapeutics, aimed at supporting the discovery and development of biologic drugs.

BiotechDeep TechHealthtechGene TherapyHard TechHealthcareTherapeuticsUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W22)

Andson Biotech was founded in 2021 by Mason Chilmonczyk.

MCMason Chilmonczyk
Mason ChilmonczykinChief Executive Officer & Co-founderMason Chilmonczyk holds a bachelor's degree in mechanical engineering from the University of South Florida and master's and doctoral degrees from Georgia Institute of Technology. He is co-founder and CEO of Andson Biotech, an academic spinout focused on biomanufacturing discovery and monitoring technologies.
JF
Jim FilippiniExecutive

Board

AF
Andrei FedorovBoard director
TO
Thomas O'BrienBoard director
JR
James RossBoard director
GE
Glenn EpsteinBoard director

Investors · 1

Y CombinatorSan Francisco · $500K

Reported raises · per SEC filings

Form D private placements

$8.3M disclosed across 2 rounds · 2024–2025

▶$4.7MraisedOct 2025 · 29 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Andrei FedorovDirector
  • Mason ChilmonczykExecutive Officer, Director
  • Jim FilippiniExecutive Officer
  • Thomas O'BrienDirector
  • Glenn EpsteinDirector
  • James RossDirector
Offering amount
$5M
Amount sold
$4.7M
First sale
Oct 2025
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$3.6MraisedMar 2024 · 37 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Andrei FedorovDirector
  • Mason ChilmonczykExecutive Officer, Director
  • Thomas O'BrienDirector
  • James RossDirector
Offering amount
$3.6M
Amount sold
$3.6M
Minimum investment
$5K
Proceeds to insiders
$250K
First sale
Mar 2024
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Competitors · 1

by search overlap
Krystalbio7 shared keywordsKrystal Biotech discovers, develops, and commercializes genetic medicines, including gene therapy programs for rare diseases such as dermatological conditions. The company operates across the US, Europe, and Japan.

Companies competing with Andson Biotech for the same Google search keywords, organic and paid, via search-intersection analysis.

In the news

Y Combinator-backed Andson Biotech in Atlanta raises $5 Millionhypepotamus.com · Oct 2025Y Combinator-backed Andson Biotech in Atlanta raises $5 Million - Hypepotamushypepotamus.com · Oct 2025Andson Biotech raises $4.7 million to scale flagship innovation and support expansion - Atlanta Business Chroniclebizjournals.com · Oct 2025Andson Biotech Secures $5.0M in Funding to Accelerate Commercialization, Expand Product Portfolioandsonbiotech.com · Oct 2025Andson Biotech Raises $3.6M in Seed Round Funding – Biolocitybiolocity.gatech.edu · Apr 2024

Frequently asked questions

What does Andson Biotech do?
Andson Biotech develops analytical tools for the analysis of biotherapeutics, aimed at supporting the discovery and development of biologic drugs.
Who founded Andson Biotech?
Andson Biotech was founded by Mason Chilmonczyk in 2021.
Who are Andson Biotech's investors?
Andson Biotech's investors include Y Combinator.
How much funding has Andson Biotech raised?
Andson Biotech has disclosed $8.3M raised across 2 rounds.
Where is Andson Biotech headquartered?
Andson Biotech is headquartered in Atlanta, US.