21 Best Startups in Stamford Connecticut to Watch in 2025

The Definitive Seedtable Ranking of Startups in Stamford Connecticut

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 21 start-ups with an aggregate funding of $335.2m. The average funding per company in this subset is $16.0m.

Last update to the database: Feb 18, 2025. See changelog.

See all results for this search

Track over 71,000 companies

Discover
Fast-growing Global startups

Seedtable uses technology and people to track over 71,000 companies to help you find the right ones to partner with.

Pricing + Sign up

2

Funding Rounds

$20.0m

Money raised

r4 Technologies is a Ridgefield, Connecticut-based artificial intelligence (AI) company offering AI-based enterprise analytics solutions.

Key people:

9

Funding Rounds

$56.6m

Money raised

A company based in Farmington, Connecticut, that develops skin disease treatments using microbiome science and technology.

Key people:

2

Funding Rounds

$12.3m

Money raised

Q30 Innovations is a medical device company developing a device, the Q-Collar, that aims to offer the brain protection from head injuries.

6

Funding Rounds

$38.6m

Money raised

A bio-renewable chemistry company developing and producing specialty chemicals using renewable feedstocks

1

Funding Rounds

Owl Cyber Defense provides hardened network security checkpoints for absolute threat prevention and secure data availability through cross domain and data diode solutions.

4

Funding Rounds

$4.2m

Money raised

Basic6, Inc. is a company that offers solutions that easily and securely connect devices to the cloud.

Key people:

1

Funding Rounds

$6.5m

Money raised

GoodSam Foods is a company dedicated to providing food products that are good for you, fair for farmers, and good for the planet. They work directly with small holder farmers, invest in their businesses, and promote regenerative agriculture.

Key people:

1

Funding Rounds

$10.0m

Money raised

Xandar Kardian is a company founded in 2017.

2

Funding Rounds

$5.0m

Money raised

Aquiline Drones Corp is a drones company founded in 2020.

Industries:

1

Funding Rounds

$1.0m

Money raised

Intelligent Clearing Network is a Connecticut-based company founded in 2008.

1

Funding Rounds

$11.0m

Money raised

Artizan Biosciences is a microbiota-targeted therapies.

1

Funding Rounds

$110.0k

Money raised

Tutor Trove is a Connecticut-based company.

Industries:

Location:

1

Funding Rounds

$5.0m

Money raised

Munk Pack is a company founded by Tobias Glienke.

Key people:

1

Funding Rounds

$125.0m

Money raised

HPI Real Estate Fund VIII LLC is a company founded in 2019.

1

Funding Rounds

$1.0

Money raised

GPC-BR (Pontiac) LP is a company founded in 2018.

1

Funding Rounds

$11.6m

Money raised

Metaview Entertainment Inc. is a Connecticut-based company.

Location:

1

Funding Rounds

$50.0k

Money raised

Zekano Bio, Inc. is a Connecticut-based company.

Location:

1

Funding Rounds

$300.0k

Money raised

Care Thread, Inc. is a Connecticut-based company.

Location:

1

Funding Rounds

$2.0m

Money raised

CYduct Diagnostics, Inc. is a Connecticut-based company.

Location:

1

Funding Rounds

$1.0m

Money raised

Domotics RE-Technologies, LLC is a Connecticut-based company founded in 2020.

Location:

1

Funding Rounds

$25.0m

Money raised

Simcha Therapeutics is a Connecticut-based company.

Location:

Sign up to access our full database

Enter your email and get access to 71,000 + technology companies you can partner with.

Join 29000+ founders, operators, and investors.