Quick facts:
HQ: New Haven, CT, United States
Funding:
$26.4M · Equity · May 2026
Top Biotech Startups in Connecticut
This list has 8 startups and was last updated on Oct 15, 2026. Biggest hubs: New Haven (4) and Stamford (2). Latest round: Thetis Pharmaceuticals raised $560K (Oct 13, 2026).
8 startups
Quick facts:
HQ: New Haven, CT, United States
Incorporated: 2025
Funding:
$13.5M · Equity · Feb 2026
Quick facts:
HQ: Stamford, CT, United States
Funding:
$6.61M · Equity · May 2026
Quick facts:
HQ: Shelton, CT, United States
Funding:
$6M · Equity · Feb 2026
Quick facts:
HQ: New Haven, CT, United States
Incorporated: 2025
Funding:
$2.1M · Equity · Feb 2026
Quick facts:
HQ: Stamford, CT, United States
Incorporated: 2026
Funding:
$2M · Options · Jun 2026
Quick facts:
HQ: New Haven, CT, United States
Incorporated: 2025
Funding:
$1M · Equity · Feb 2026
Quick facts:
HQ: Deep River, CT, United States
Funding:
$560K · Debt · Oct 2026
Questions and answers
How many startups are on this list?
There are 8 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
None of them shows open roles right now.
Which of them raised money recently?
Latest rounds: Thetis Pharmaceuticals — $560K Debt (Oct 2026), Nanomind — $2M Options (Jun 2026), and Oncosynergy — $6.61M Equity (May 2026).
Where are they based?
The biggest hubs are New Haven (4) and Stamford (2).