StartupBlink

91 Top startups in Stamford for August 2026

We rank Copyleaks Inc., Tomo and SponsorUnited in Stamford along with 88 other startups based on an algorithm that scores startups based on total investment, employee count, and quarterly website traffic. Stamford is part of New York startup ecosystem which ranks #2 globally and #2 in North America.

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Best Startups in Stamford for 2026

1st
Copyleaks Inc. logo
Copyleaks Inc.SB Score: 581

Using advanced AI and ML technology, our platform detects plagiarism, paraphrased content, and non-verbatim text in over 100 languages. It goes beyond word-for-word checks to identify if the meaning of the text is plagiarized, providing a comprehensive solution for ensuring originality and authenticity.

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Website
www.copyleaks.com
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
$119.1M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
2nd
Tomo logo
TomoSB Score: 499

Tomo is a fintech startup dedicated to transforming residential mortgages and enhancing the home-buying experience through its subsidiaries, Tomo Mortgage and Tomo Real Estate. By digitizing the mortgage process, Tomo aims to streamline transactions and empower buyers with a more efficient and accessible approach to home ownership.

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Website
www.tomo.com
Employee range
51 – 100
Web Traffic (Monthly)
Funding amount
$130.7M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
3rd
SponsorUnited logo
SponsorUnitedSB Score: 482

Launched in 2018, SponsorUnited is a global sports and entertainment intelligence platform. SponsorUnited enables brands, agencies, and properties to partner intelligently by connecting the entire partnership ecosystem through the most comprehensive data available anywhere. SponsorUnited has over 10M images, 10M assets, 700K deals, 200K brands, 22K properties—across sports, media, music and events in its SaaS database. Through detailed analysis and machine learning, SponsorUnited is able to efficiently identify partnership opportunities based on historical performance trends and broad curation and standardization of ideas and strategies, all within the format of a marketplace. The company has diversified solutions to suit all levels and complexities of sponsorship that make entering or scaling in sponsorship much easier.

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Website
sponsorunited.com
Employee range
251 – 500
Web Traffic (Monthly)
Funding amount
$39.2M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
4th
Shelf logo
ShelfSB Score: 474

Shelf is a highly awarded Knowledge Automation platform designed to help remote workers instantly find the answers they need. Its MerlinAI technology delivers answers directly through the tools the team uses daily. Built on a modern tech stack, Their solution meets stringent security standards. In all the ways traditional knowledge bases fail, Shelf succeeds.

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Website
www.shelf.io
Employee range
51 – 100
Web Traffic (Monthly)
Funding amount
$60.7M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
5th
Arccos Golf logo
Arccos GolfSB Score: 457

Arccos Golf develops an Arccos Caddie platform that provides golfers with automatic shot tracking, smart distance club averages, A.I.-powered GPS rangefinder, advanced analytics, and caddie advice. It helps golfers of all skill levels make decisions, improve, and shoot lower scores. Arccos is a provider of big data, advanced analytics, and machine learning insights for the golf industry.

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Website
www.ArccosGolf.com
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
$26.5M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
6th
SpringWorks Therapeutics logo

SpringWorks Therapeutics focuses on developing and commercializing innovative therapies for cancer treatment. The company specializes in targeted oncology, aiming to provide solutions that address unmet medical needs in the oncology space. SpringWorks offers a range of therapies, including those that target specific genetic mutations in tumors. Their research emphasizes precision medicine, utilizing advanced methodologies to enhance treatment efficacy. The company engages in collaborations to accelerate the development of its pipeline and improve patient outcomes in oncology.

View Full Page
Website
www.springworkstx.com
Employee range
251 – 500
Web Traffic (Monthly)
Funding amount
$228M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
7th
Clean Origin logo
Clean OriginSB Score: 447

Clean Origin is a third generation diamond jewelry company that specializes in lab grown diamonds that are ethically sourced. Its designs use only ethically created and conflict-free lab grown diamonds, which reduces water and energy use, land and mineral disturbance, and carbon emissions. Its mission is to keep diamond history on the right track.

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Website
www.cleanorigin.com
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
$20M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
8th
Treeline Biosciences logo

Treeline Biosciences is a biotech company building transformative precision medicines for patients with cancer and other serious conditions. The company was founded in 2021 and is headquartered in Stamford, Connecticut.

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Website
treeline.bio
Employee range
101 – 250
Web Traffic (Monthly)
Funding amount
$1.1B
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
9th
1touch.io logo
1touch.ioSB Score: 409

By continuously analyzing traffic and repository stores connected to your network, our network-based solution can detect all elements on the network that are storing, processing, and sharing personal data, both internally and externally. Whether structured or unstructured data, data in motion or at rest, and even data that is unknown to you, 1touch.io can track it for you.

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Website
1touch.io
Employee range
51 – 100
Web Traffic (Monthly)
Funding amount
$28M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
10th
Factors.AI logo
Factors.AISB Score: 407

FactorsAI streamlines analytics for businesses, empowering them to improve marketing decisions.

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Website
www.factors.ai
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
$6.1M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
11th
Bennie logo
BennieSB Score: 399

Bennie offers a user-friendly app and top-notch brokerage services to simplify and improve access to benefits for all. Their mission is to make benefits easier to understand and obtain, ensuring everyone can enjoy better coverage.

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Website
www.bennie.com
Employee range
11 – 50
Web Traffic (Monthly)
Funding amount
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)

Total amount:59

Most Funded Startups in Stamford for 2026

The top three most funded startups in Stamford have raised total funding of more than USD 1.45B. Treeline Biosciences has 3.80% more funding than SpringWorks Therapeutics.
1st
Treeline Biosciences logo

Treeline Biosciences is a biotech company building transformative precision medicines for patients with cancer and other serious conditions. The company was founded in 2021 and is headquartered in Stamford, Connecticut.

View Full Page
Website
treeline.bio
Employee range
101 – 250
Web Traffic (Monthly)
Funding amount
$1.1B
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
2nd
SpringWorks Therapeutics logo

SpringWorks Therapeutics focuses on developing and commercializing innovative therapies for cancer treatment. The company specializes in targeted oncology, aiming to provide solutions that address unmet medical needs in the oncology space. SpringWorks offers a range of therapies, including those that target specific genetic mutations in tumors. Their research emphasizes precision medicine, utilizing advanced methodologies to enhance treatment efficacy. The company engages in collaborations to accelerate the development of its pipeline and improve patient outcomes in oncology.

View Full Page
Website
www.springworkstx.com
Employee range
251 – 500
Web Traffic (Monthly)
Funding amount
$228M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
3rd
Tomo logo
TomoSB Score: 343

Tomo is a fintech startup revolutionizing homebuying with a user-friendly digital mortgage and transaction platform. Founded in October 2020 by Greg Schwartz and Carey Armstrong, Tomo Networks streamlines the homebuying process for a seamless and efficient experience.

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Website
hellotomo.com
Employee range
51 – 100
Web Traffic (Monthly)
Funding amount
$130.7M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)

Total amount:59

Top Hiring Startups in Stamford by Employee Number

The top three hiring startups in Stamford have an median employee size that is between [251-500]
1st
Crane NXT logo
Crane NXTSB Score: 216

Crane NXT is a industrial technology business. Crane NXT offers advanced technologies to secure, detect, and authenticate crucial assets for their clients.

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Website
www.cranenxt.com
Employee range
1,001 – 5,000
Web Traffic (Monthly)
Funding amount
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
2nd
SponsorUnited logo
SponsorUnitedSB Score: 482

Launched in 2018, SponsorUnited is a global sports and entertainment intelligence platform. SponsorUnited enables brands, agencies, and properties to partner intelligently by connecting the entire partnership ecosystem through the most comprehensive data available anywhere. SponsorUnited has over 10M images, 10M assets, 700K deals, 200K brands, 22K properties—across sports, media, music and events in its SaaS database. Through detailed analysis and machine learning, SponsorUnited is able to efficiently identify partnership opportunities based on historical performance trends and broad curation and standardization of ideas and strategies, all within the format of a marketplace. The company has diversified solutions to suit all levels and complexities of sponsorship that make entering or scaling in sponsorship much easier.

View Full Page
Website
sponsorunited.com
Employee range
251 – 500
Web Traffic (Monthly)
Funding amount
$39.2M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
3rd
SpringWorks Therapeutics logo

SpringWorks Therapeutics focuses on developing and commercializing innovative therapies for cancer treatment. The company specializes in targeted oncology, aiming to provide solutions that address unmet medical needs in the oncology space. SpringWorks offers a range of therapies, including those that target specific genetic mutations in tumors. Their research emphasizes precision medicine, utilizing advanced methodologies to enhance treatment efficacy. The company engages in collaborations to accelerate the development of its pipeline and improve patient outcomes in oncology.

View Full Page
Website
www.springworkstx.com
Employee range
251 – 500
Web Traffic (Monthly)
Funding amount
$228M
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)
4th
Newwe logo
NewweSB Score: 101

Newwe is a Gamified Employee Experience platform that brings out true productivity and utilization of employees and increases team cohesiveness in hybrid work environments. Newwe is enabled with advanced machine learning techniques to provide businesses with real-time analytics that help make data-driven decisions, and improve employee motivation and retention. More details at www.newwe.io

View Full Page
Website
newwe.io
Employee range
251 – 500
Web Traffic (Monthly)
Funding amount
National Rank(United States)
Regional Rank(North America)
Global Rank(Worldwide)

Total amount:91

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