69 Best Network Security Startups to Watch in 2025

The Definitive Seedtable Ranking of Network Security Startups

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 307 start-ups with an aggregate funding of $14.5b. The average funding per company in this subset is $210.3m.

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

7

Funding Rounds

$165.1m

Money raised

Figment is a blockchain infrastructure and software provider.

Location:

Key people:

2

Funding Rounds

$29.5m

Money raised

Immunefi is a bug bounty security services platform that focuses on bug bounty and security services for Web3 projects.

Key people:

10

Funding Rounds

$1.6b

Money raised

Snyk is a technology company offering a software development security platform using open-source code.

4

Funding Rounds

$165.0m

Money raised

Elastic is a software company that creates products for searching for information on the Internet. It was founded in 2012 and is headquartered in San Francisco and Amsterdam.

4

Funding Rounds

$8.5m

Money raised

CUJO AI is a network intelligence software company.

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.

Zayo Group offers bandwidth infrastructure services across various markets, delivering lit services and dark fiber products. It supports wireline and wireless customers, data centers, and government agencies with a robust network infrastructure. The company also provides carrier-neutral colocation facilities to enhance connectivity options.

5

Funding Rounds

$37.7m

Money raised

42Crunch is an enterprise API security platform with integrated services, including an API firewall, to discover and remediate API security vulnerabilities.

Location:

Key people:

1

Funding Rounds

$84.0m

Money raised

Checkmarx is a company that makes static code analysis software.

Location:

Key people:

3

Funding Rounds

$35.5m

Money raised

SAM Seamless Network is a cybersecurity technology platform that protects the connected home by tackling cyber security threats at the source.

Location:

Key people:

4

Funding Rounds

$1.7m

Money raised

Zenarmor is a Sunnyvale, California-based cybersecurity and network security company offering enterprise network security products.

Key people:

9

Funding Rounds

$899.3m

Money raised

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

9

Funding Rounds

$1.0b

Money raised

Netskope is a cloud access security broker company. It provides a cloud-scale security platform for managing cloud usage in an enterprise.

6

Funding Rounds

$137.6m

Money raised

ExtraHop Networks is a Seattle, Washington-based cybersecurity technology company.

Location:

Key people:

2

Funding Rounds

$45.0m

Money raised

Nillion is a decentralized privacy solutions provider founded in 2021 by Andrew Masanto.

Location:

Zug

Key people:

1

Funding Rounds

$2.5m

Money raised

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

3

Funding Rounds

$62.1m

Money raised

Forward Networks is a Palo Alto-based company that creates network modeling software.

Key people:

6

Funding Rounds

$317.0m

Money raised

BigPanda offers a platform that helps IT Ops, NOC, and DevOps teams detect, investigate, and resolve IT incidents.

6

Funding Rounds

$613.0m

Money raised

Pensando Systems is a company developing edge computing and cloud computing services for enterprises and cloud providers.

1

Funding Rounds

$125.0m

Money raised

OPSWAT is a cybersecurity company founded in 2002. Based in San Francisco, CA, they focus on cyberthreat prevention including a focus on malware, sensitive information, and application vulnerabilities.

Location:

Key people:

8

Funding Rounds

$184.0m

Money raised

Aryaka is a San Mateo, California-based networking company offering SD-WAN and SASE solutions.

3

Funding Rounds

$53.1m

Money raised

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

Key people:

3

Funding Rounds

$220.0m

Money raised

Noname Security is a Palo Alto, California-based cybersecurity and network security company developing products to protect APIs.

Industries:

Key people:

2

Funding Rounds

$6.0m

Money raised

Ananda Networks is a networking company allowing organizations to create private networks, connecting users, devices, and services across branches and remote locations.

3

Funding Rounds

$30.4m

Money raised

IoTium is a provider of secure managed software-defined network infrastructure.

3

Funding Rounds

$162.0m

Money raised

Material Security provides data security solutions for email, protection against phishing, and risk analytics.

Key people:

1

Funding Rounds

$8.0m

Money raised

BlastWave is a Mountain View, California-based developer of network security products with a zero trust paradigm.

Key people:

6

Funding Rounds

$557.5m

Money raised

Illumio is a cloud security company utilizing adaptive segmentation to prevent cyber threats of unauthorized communications.

Key people:

8

Funding Rounds

$144.9m

Money raised

Logz.io is an AI-powered log analysis platform that offers the open-source ELK Stack as an enterprise-grade service.

Location:

Key people:

2

Funding Rounds

$83.0m

Money raised

Mimecast is a London-based cybersecurity and email management platform company founded by Neil Murray and Peter Bauer.

Location:

Key people:

3

Funding Rounds

$64.0m

Money raised

Mobileum is a leading provider of Telecom analytics for roaming, security and risk management and end-to-end domestic and roaming testing solutions.

Key people:

7

Funding Rounds

$161.3m

Money raised

Cradlepoint is a Boise, Idaho-based company offering 5G wireless WAN solutions to businesses and government agencies.

18

Funding Rounds

$1.5b

Money raised

Tanium is a company providing security and systems management solution for businesses.

Key people:

6

Funding Rounds

$149.0m

Money raised

Shape Security is a Mountain View, California-based company. It was acquired by F5 Networks in 2019.

Key people:

1

Funding Rounds

$5.6m

Money raised

ID Quantique is a company developing quantum cybersecurity products, quantum scientific instrumentation, and quantum random number generation.

Location:

Key people:

7

Funding Rounds

$247.0m

Money raised

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

Key people:

4

Funding Rounds

$60.2m

Money raised

Rapid7 is a Boston-based cybersecurity company providing security data and analytics solutions.

2

Funding Rounds

$69.0m

Money raised

Isovalent is a Mountain View, California-headquartered developer of cloud-native networking and security, through the company's Cilium product.

Key people:

3

Funding Rounds

$29.5m

Money raised

Valtix was a Santa Clara, California-based developer of a cloud-based network security platform for enterprises.

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:

2

Funding Rounds

$80.0m

Money raised

Traceable is an API security software developed to protect application infrastructures.

3

Funding Rounds

$81.0m

Money raised

Edge Delta is a Seattle-based developer of an observability automation platform capable of making sense of complex data sets and reducing index volumes.

Location:

Key people:

1

Funding Rounds

$5.0m

Money raised

User authentication and fraud prevention with biometric Identity-as-a-Service. AimBrain provides face, voice, lipsync, behavior and anomaly detection modules.

8

Funding Rounds

$357.3m

Money raised

U.S-based company providing real-time cyber security & visibility for industrial networks.

10

Funding Rounds

$514.6m

Money raised

Nexthink is a software company located in Prilly, Vaud, Switzerland. The company was founded in 2004 by Pedro Bados and Patrick Hertzog.

Location:

Key people:

1

Funding Rounds

$7.0m

Money raised

Bitdefender is a global cybersecurity, cloud security, and network security company.

Location:

Key people:

8

Funding Rounds

$125.4m

Money raised

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

6

Funding Rounds

$650.0k

Money raised

QuSecure is a Menlo Park, California-based cybersecurity company that is developing quantum security applications, it was founded in 2019 by Skip Sanzeri, Rebecca Krauthamer, Dave Krauthamer, and Kosta Vilk.

2

Funding Rounds

$72.0m

Money raised

AlgoSec is a Ridgefield Park, New Jersey-based developer of network security software automating security policy management and business applications and ensuring security compliance.

5

Funding Rounds

$81.4m

Money raised

LogRhythm is a Boulder, Colorado-based cybersecurity company founded in 2003.

4

Funding Rounds

$11.2m

Money raised

Post-Quantum is a company that is developing quantum-resistant encryption for protection against code-breaking quantum computers and quantum-resistant signature schemes for secure blockchain deployment.

4

Funding Rounds

$635.0m

Money raised

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

2

Funding Rounds

$11.9m

Money raised

Strike Graph is a compliance SaaS solution simplifying cyber security certifications.

Location:

Key people:

6

Funding Rounds

$126.0m

Money raised

AttackIQ is an enterprise cloud computing and computer security company.

Key people:

1

Funding Rounds

SureFire is a Fountain Valley, California-based company founded in 1979.

14

Funding Rounds

$441.3m

Money raised

Tines is a dublin-based no-code security automation company founded in 2018.

6

Funding Rounds

$280.5m

Money raised

Darktrace is a British artificial intelligence company for cybersecurity.

5

Funding Rounds

$249.5m

Money raised

Pentera, formerly Pcysys, is a Petah Tikva-based cybersecurity company delivering an automated penetration testing platform.

Location:

Key people:

1

Funding Rounds

$12.0m

Money raised

Tealeaf was a data analytics business. It was acquired by IBM, then later sold as part of IBM Marketing to Centerbridge Partners as Acoustic Experience Analytics.

13

Funding Rounds

$620.3m

Money raised

Directory-as-a-Service (DaaS) company to securely connect user identities to devices, networks, apps, files, & data.

Key people:

2

Funding Rounds

$11.0m

Money raised

Quest Software is a division of dell inc.; former company founded in 1987 by Vinny Smith.

13

Funding Rounds

$531.0m

Money raised

Vectra is a cybersecurity platform that specializes in detection and response to cyberattacks in cloud, data center, IoT, and enterprise.

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:

5

Funding Rounds

$107.5m

Money raised

Synack is a Redwood City, California-based cybersecurity company developing a crowdsourced security platform.

Key people:

5

Funding Rounds

$99.6m

Money raised

CybSafe is a cloud-based platform focussed on addressing the human component of cyber security - an intelligent approach to awareness training.

Location:

Key people:

3

Funding Rounds

$75.7m

Money raised

Bromium deliver a new technology called micro-virtualization to address the enterprise security problem and provide protection for end users against advanced malware.

1

Funding Rounds

$1.9m

Money raised

SpeQtral is a company that is interested in developing quantum communication technologies

4

Funding Rounds

$41.0m

Money raised

Nominum is a leader in DNS-based security and services innovation.

2

Funding Rounds

$130.0m

Money raised

CloudGenix is a U.S-based company developing software-defined WAN.

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.