69 Best Security Startups in United States to Watch in 2025

The Definitive Seedtable Ranking of Security Startups in United States

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 121 start-ups with an aggregate funding of $14.4b. The average funding per company in this subset is $208.3m.

Last update to the database: Jun 10, 2025. See changelog.

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8

Funding Rounds

$390.0m

Money raised

Exabeam is a San Mateo, California-based data security analytics company offering cybersecurity and early cyber attack detection software.

2

Funding Rounds

$37.0m

Money raised

Blue Hexagon is a San Francisco-based cybersecurity company offering an on-device machine learning based malware detection product.

Key people:

5

Funding Rounds

$40.0m

Money raised

Enveil is a Fulton, Maryland-based data security and privacy security technology company.

9

Funding Rounds

$899.3m

Money raised

Arctic Wolf Networks provides a cybersecurity platform that executes risk management and task analysis using machine learning.

1

Funding Rounds

$2.5m

Money raised

Minim is a Manchester, New Hampshire-based communications company developing software-based communications products including WiFi products.

4

Funding Rounds

$138.9m

Money raised

Verkada is a software company offering a cloud-based internet of things (IoT) platform for security camera systems.

Key people:

7

Funding Rounds

$321.1m

Money raised

Deep Instinct is a Tel Aviv- and New York City-based cybersecurity company that applies deep learning to cybersecurity.

Key people:

3

Funding Rounds

$53.1m

Money raised

Censys is an Ann Arbor, Michigan-based computer and network security company.

Key people:

6

Funding Rounds

$9.8m

Money raised

Facial recognition company Kairos today announced the alpha release of the Kairos Protocol, a biometric verification system for cryptocurrency transactions.

8

Funding Rounds

$286.6m

Money raised

SparkCognition is an artificial intelligence and cybersecurity company offering cognitive computing analytics for the information technology, operational technology, and the internet of things (IoT) industries.

10

Funding Rounds

$588.1m

Money raised

Shield AI is a company building artificially intelligent systems like drones for use by military service members and first responders.

7

Funding Rounds

$260.5m

Money raised

Menlo Security is a cloud-based internet isolation to prevent cyber attacks founded in 2013 by Amir Ben-Efraim, Gautam Altekar and Poornima DeBolle.

8

Funding Rounds

$3.5b

Money raised

SentinelOne is a U.S-based company providing endpoint security software globally founded in 2013 by Tomer Weingarten, Ehud Shamir and Almog Cohen.

3

Funding Rounds

OpenZeppelin provides security products to build, automate, and operate decentralized applications.

8

Funding Rounds

$292.0m

Money raised

Swimlane is the developer of a security organization and response platform that allows businesses to automate their security.

Key people:

12

Funding Rounds

$296.1m

Money raised

BigID is a cybersecurity company developing a platform for data protection and privacy compliance.

Key people:

9

Funding Rounds

$282.3m

Money raised

Lookout is a cybersecurity company using predictive machine intelligence to analyze data to predict and stop mobile attacks to an individual or an enterprise.

Key people:

6

Funding Rounds

$525.0m

Money raised

Forter is a E-Commerce fraud detection platform founded in 2013 by Michael Reitblat, Liron Damri and Alon Shemesh.

Key people:

3

Funding Rounds

$124.0m

Money raised

A company that has created a software solution for businesses to monitor their security effectiveness. It was founded in 2011 and is located in Boston, Massachusetts.

5

Funding Rounds

$159.4m

Money raised

A cybersecurity company offering an application security platform for enterprises.

Key people:

8

Funding Rounds

$125.4m

Money raised

Forescout Tech is a computer and network security company that empowers organizations against cyberthreats.

4

Funding Rounds

$1.7m

Money raised

Cyberwrite is a company which develops machine learning solutions and technologies for cyber insurance underwriting, pricing and aggregated risk management.

4

Funding Rounds

$635.0m

Money raised

KnowBe4 is a Clearwater, Florida-based platform for security awareness training and simulated phishing attacks.

7

Funding Rounds

$149.9m

Money raised

A regulatory technology company offering a transaction monitoring solution to prevent fraud on digital assets companies. It utilizes behavioral analytics to detect suspicious anomalies.

Key people:

3

Funding Rounds

$90.0m

Money raised

HUMAN is a cybersecurity company that protects enterprises from bot attacks to keep digital experiences human.

Key people:

2

Funding Rounds

$13.8m

Money raised

Citadel builds an automated and modular drone defense system that uses machine learning algorithms to detect and engage drones.

8

Funding Rounds

$113.7m

Money raised

Agari is a Foster City, California-based cybersecurity company using artificial intelligence for the provision of email threat prevention and protection.

5

Funding Rounds

$8.7m

Money raised

An artificial intelligence company using computer vision to monitor, identify patterns, and make decisions based on surveillance camera streams.

2

Funding Rounds

$12.5m

Money raised

Company

4

Funding Rounds

$80.2m

Money raised

CipherTrace is a Menlo Park, California-based cybersecurity company developing security solutions for the cryptocurrency industry.

6

Funding Rounds

$274.5m

Money raised

Dashlane is a password manager software company founded by Emmanuel Schalit, Alexis Fogel, Guillaume Maron and Jean Guillou.

Key people:

11

Funding Rounds

$7.1m

Money raised

My1login is a company founded in 2007 by Michael Newman.

Key people:

7

Funding Rounds

$1.9b

Money raised

Lacework specializes in large-scale cloud security automation solutions for businesses.

3

Funding Rounds

$164.8m

Money raised

Skybox Security is a cybersecurity company working to protect users data through analysis of security sources such as firewalls and network devices and providing users a security and vulnerability analysis.

2

Funding Rounds

$20.7m

Money raised

UpGuard's discovery engine brings visibility to complex IT environments, enabling teams to identify risk, confirm compliance and make business safer.

6

Funding Rounds

$15.6m

Money raised

Elistair is a company that develops equipment for the aviation industry.

Key people:

3

Funding Rounds

$47.6m

Money raised

Netography is a company that provides network security platforms

3

Funding Rounds

$119.5m

Money raised

Obsidian Security is a company that produces a cloud detection and response Saas application to investigate breaches and insider threats.

Key people:

1

Funding Rounds

$16.5m

Money raised

Armorblox is a cybersecurity company based in Sunnyvale, California using natural language detection, machine learning and artificial intelligence for enterprise communication.

5

Funding Rounds

$640.0m

Money raised

Claroty is a New York-based cybersecurity company developing solutions for the information technology and operational technology gap.

Key people:

3

Funding Rounds

$7.3m

Money raised

CosmosID is a microbial genomics platform focused on characterization of microorganisms, pathogens and anti-microbial resistance for infectious disease identification, food safety inspections, pharmaceutical discovery, public health surveillance and microbiome analysis.

3

Funding Rounds

$10.8m

Money raised

A company developing and providing application and API security for the web

Key people:

4

Funding Rounds

$22.6m

Money raised

GreatHorn is a Waltham, Massachusetts-based cybersecurity company developing protection products for cloud email systems.

8

Funding Rounds

$339.0m

Money raised

At-Bay is a Mountain View, California-based cyber claims management insurance company developing insurance products for cybersecurity.

5

Funding Rounds

$151.0m

Money raised

PerimeterX is a company founded in 2014 by Ido Safruti, Omri Iluz and Ophir Ashkenazi.

Key people:

2

Funding Rounds

$13.6m

Money raised

MSi is a specialized provider of next generation cyber defense solutions protecting control systems and critical physical assets in energy, transportation and defense.

4

Funding Rounds

$39.0m

Money raised

Bastille is a company that provides enterprise threat detection through software-defined radio.

4

Funding Rounds

$34.9m

Money raised

Averon is a software development company creating security applications for mobile devices.

3

Funding Rounds

$41.5m

Money raised

WhiteHat's products enable customers to "Hack Ytheself First" so that they gain a greater understanding of the actual risk to their business.

2

Funding Rounds

$11.2m

Money raised

Easy Aerial is a drone security company, based in New Jersey and New York, that provides aerial monitoring systems.

Key people:

4

Funding Rounds

$233.0m

Money raised

BlueVoyant is an analytics-driven cybersecurity company based in New York City.

Key people:

2

Funding Rounds

$12.3m

Money raised

Dust Identity is a logistic and object tracking company founded by Ophir Gaathon.

Key people:

1

Funding Rounds

$175.0k

Money raised

A company providing a cybersecurity platform that stops phishing, malware and impersonation attacks

Key people:

2

Funding Rounds

$67.0m

Money raised

Awake Security is a company that uses Analytics, Artificial Intelligence, and Machine Learning in innovative ways.

1

Funding Rounds

$15.0m

Money raised

iovation is a company founded in 2004.

5

Funding Rounds

$58.9m

Money raised

DefenseStorm is a Security Data Platform that watches everything on your network and matches it to your policies, providing cybersecurity management that is safe, compliant and cost effective.

Key people:

5

Funding Rounds

$90.0m

Money raised

Duality Technologies combine Advanced Cryptography with Data Science to deliver High-Performance Privacy-Protecting Computing to Regulated Industries.

4

Funding Rounds

$31.0m

Money raised

IronScales is a cybersecurity software engineering company.

5

Funding Rounds

$34.8m

Money raised

Cybrary is a College Park, Maryland-based career development platform in cybersecurity and information technology applications.

Key people:

2

Funding Rounds

$5.3m

Money raised

Allure provide Behavioral Analytics software that combines machine learning and decoy technology to protect enterprise devices from data loss and intrusion both inside and outside the enterprise.

Key people:

1

Funding Rounds

$36.0k

Money raised

A company offering a platform for connecting and monitoring camera systems.

6

Funding Rounds

$76.2m

Money raised

Stellar Cyber makes Open XDR, the only comprehensive security platform providing maximum protection of applications and data wherever they reside.

Key people:

4

Funding Rounds

$54.5m

Money raised

DataVisor is a researching and developing company with focus in fraud management.

Key people:

3

Funding Rounds

$98.6m

Money raised

Balbix is a company with the mission to allow organizations automate cybersecurity posture and lower their breach risk.

2

Funding Rounds

$70.0m

Money raised

ActivTrak is a company founded in 2009.

2

Funding Rounds

$8.5m

Money raised

TypingDNA is an artificial Intelligence company founded in 2016 by Raul Popa, Adrian Gheara and Cristian Tamas.

Key people:

5

Funding Rounds

$152.6m

Money raised

Automox is a company founded in 2015.

1

Funding Rounds

Orbit Logic specializes in mission planning, scheduling, and space situational awareness

1

Funding Rounds

$20.0m

Money raised

UnifyID is an identity platform that offers seamless security through implicit authentication.

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