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 310 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.

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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.

1

Funding Rounds

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.

Location:

Key people:

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.

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.

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