Top 20 Cybersecurity Companies & Startups to Watch in 2025
The cybersecurity space has grown rapidly in recent years, propelled by an increased focus on IT.
Revenue in the industry is expected to surpass $200 billion in 2025. And this figure is projected to reach $271.91 billion by 2029, growing at a 7.58% CAGR.
The growth of the AI market is a key industry driver to keep an eye on.
According to Morgan Stanley, the global AI cybersecurity product market will grow from $15 billion in 2021 to $135 billion by 2030.
We’ve prepared a list of 20 fast-growing startups that focus on tackling cybersecurity issues.
1. Abnormal Security
5-year search growth: 545%
Search growth status: Exploding
Year founded: 2018
Location: San Francisco, CA
Funding: $557M (Series D)
What they do: Abnormal Security offers a cloud-based email security platform that protects against targeted attacks (their software operates within Office 365 and G Suite environments). The main use case is helping to detect email account compromises, block phishing and malicious attacks, and providing automated incident response options.
In August 2024, the startup raised $250 million in Series D funding at a valuation of $5.1 billion.
2. Tailscale
5-year search growth: 99x+
Search growth status: Exploding
Year founded: 2019
Location: Toronto, Canada
Funding: $115.4M (Series B)
What they do: Tailscale is a service that provides secure network connectivity using WireGuard technology. It allows users to create a virtual private network (VPN) that connects devices across different networks as if they were on the same local network, simplifying the process of setting up and managing VPNs by handling network configuration, firewall rules, and NAT traversal.
Tailscale is particularly useful for remote teams, developers, and IT professionals who need to securely connect to resources across different locations without the hassle of traditional VPN setups.
3. Snyk
5-year search growth: 295%
Search growth status: Exploding
Year founded: 2015
Location: Boston, MA
Funding: $1.2B (Corporate Round)
What they do: Snyk is a software company that creates developer-first analysis tools to find and fix open-source vulnerabilities. Additionally, the product monitors loopholes in the application code. Over 2.2 million developers use the product.
4. Zluri
5-year search growth: 9,800%
Search growth status: Exploding
Year founded: 2020
Location: San Jose, CA
Funding: $32M (Series B)
What they do: A comprehensive SaaS management platform designed to empower modern enterprises with full visibility and control over their SaaS applications, access, and costs. It differentiates itself by offering features such as automated workflows, detailed analytics, and seamless integration with various SaaS tools, which help organizations optimize their software usage and reduce unnecessary expenditures.
Zluri primarily targets IT departments and business leaders in medium to large enterprises who seek to streamline their SaaS operations and enhance overall efficiency.
5. Axonius
5-year search growth: 3,200%
Search growth status: Exploding
Year founded: 2017
Location: New York, NY
Funding: $865M (Series E)
What they do: Axonius is a cybersecurity asset management platform for enterprise clients in industries including energy and retail. The platform has 317 pre-built integrations designed to automate inventory management. Specifically, the Axonius software identifies loopholes in asset security based on company cybersecurity policies and sends automated alerts to relevant team members when a potential loophole has been found.
In March 2024, the company raised $200 million in a Series E extension funding after exceeding $100 million in ARR in 2023.
6. Stytch
5-year search growth: 8,200%
Search growth status: Exploding
Year founded: 2015
Location: Vancouver, Canada
Funding: $146M (Series B)
What they do: Software company based in San Francisco, California, specializing in authentication and security solutions. Stytch differentiates itself by offering services like device fingerprinting and bot protection to enhance product and customer security. The company's solutions are primarily targeted at businesses seeking robust security measures to protect their digital assets and user data.
7. HoxHunt
5-year search growth: 373%
Search growth status: Exploding
Year founded: 2016
Location: Espoo, Finland
Funding: $43.3M (Series B)
What they do: HoxHunt is a cybersecurity awareness platform. So, instead of preventing or managing attacks, the platform simulates phishing, social engineering, and other attacks in order to raise awareness among staff. It also rewards users who report potential security issues. HoxHunt provides cybersecurity training created for individuals who fail to recognize the threats.
According to the startup, their solution helps companies reduce phishing attacks by 70%. The startup's revenue reached $4.2M in 2023, increasing 49% year over year.
8. Arctic Wolf Networks
5-year search growth: 54%
Search growth status: Regular
Year founded: 2012
Location: Eden Prairie, MN
Funding: $899.2M (Convertible Note)
What they do: Arctic Wolf Networks provides cloud security software and managed services that offer continuous monitoring and alerts. The platform uses APIs and machine learning to provide real-time analysis. And concierge security teams help fill the operational gap for personalized strategic guidance.
9. Tanium
5-year search growth: 24%
Search growth status: Regular
Year founded: 2007
Location: Kirkland, WA
Funding: $1B (Secondary Market)
What they do: Tanium is an endpoint management and security tool. Customers can retrieve data on every endpoint and execute changes in seconds, which allows organizations to boost protection from cyber threats.
10. Nozomi Networks
Search growth status: Regular
Year founded: 2013
Location: San Francisco, CA
Funding: $266M (Series E)
What they do: Nozomi Networks is a cybersecurity platform specializing in OT and IoT protection. The company toolset provides real-time ICS monitoring, hybrid threat detection, asset inventory, and vulnerability assessment. Nozomi Networks recently raised $100 million in Series E funding to scale product development.
11. Perimeter 81
5-year search growth: 58%
Search growth status: Regular
Year founded: 2018
Location: Tel Aviv, Israel
Funding: $165M (Series C)
What they do: Perimeter 81 is a cybersecurity company that offers a cloud-based secure network solution for businesses. Its network as a service (NaaS) platform provides secure access to company resources and protects against network threats. Perimeter 81 offers businesses a simplified and secure way to manage their network, allowing employees to securely access company resources from anywhere.
12. Claroty
5-year search growth: 99x+
Search growth status: Exploding
Year founded: 2015
Location: New York, NY
Funding: $740M (Series Unknown)
What they do: Claroty is a cybersecurity toolset designed for industrial enterprise clients. Features include threat detection, remote access, and a management console solution. Specifically, the Claroty platform helps enterprise clients reveal, protect, and manage OT, IoT, and IIoT assets.
In March 2024, the startup raised $100 million in strategic growth financing after the company crossed $100 million in ARR during 2023.
13. Deep Instinct
5-year search growth: 55%
Search growth status: Regular
Year founded: 2015
Location: New York, NY
Funding: $321.6M (Series Unknown)
What they do: Deep Instinct is a cybersecurity platform specialized in malware protection. Their product applies deep learning technology to proactively prevent attacks from happening. Deep Instinct’s solution supports more than 100 file types across all endpoints among the most common operating systems.
14. 1Password
5-year search growth: 100%
Search growth status: Regular
Year founded: 2005
Location: Toronto, Canada
Funding: $920.1M (Series C)
What they do: 1Password is a password management and digital security startup. Users can easily create, store, and manage passwords in one location. Beyond passwords, 1Password provides encrypted digital vaults to store credit card details, notes, documents, etc. Today, 1Password has more than 150,000 enterprise clients and 15 million users.
15. ProjectDiscovery
5-year search growth: 7,100%
Search growth status: Exploding
Year founded: 2020
Location: San Francisco, CA
Funding: $26.7M (Series A)
What they do: ProjectDiscover is a cloud-hosted security platform designed to provide continuous visibility across an organization's external attack surface. It focuses on detecting exploitable vulnerabilities and misconfigurations using automation, integration, and continuous scanning, helping organizations quickly resolve vulnerabilities at scale.
The platform is primarily targeted at businesses and security teams seeking to enhance their cybersecurity posture and mitigate risks effectively.
16. GitGuardian
5-year search growth: 250%
Search growth status: Regular
Year founded: 2017
Location: Paris, France
Funding: $56M (Series B)
What they do: GitGuardian is a system that scans all GitHub public activity. The monitoring software helps prevent data leakage of API secret tokens, database credentials and certificates. And sends automated alerts when any of these threats are detected.
17. Splitero
5-year search growth: 8,000%
Search growth status: Exploding
Year founded: 2021
Location: San Diego, CA
Funding: $317.5M (Series B)
What they do: Splitero is a company that provides financial solutions, specifically focusing on home equity.
They offer homeowners the ability to access their home equity without taking on additional debt through a home equity investment model, where Splitero invests in a portion of the home's future value in exchange for a cash payment to the homeowner. This service is particularly beneficial for homeowners looking to unlock the value of their home without monthly payments or interest, unlike traditional loans or lines of credit.
18. Red Canary
5-year search growth: 15%
Search growth status: Exploding
Year founded: 2014
Location: Denver, CO
Funding: $135M (Series C)
What they do: Red Canary is a multi-dimensional endpoint threat detection system. Their platform combines automated software with human analysis to detect and respond to malicious events.
19. IriusRisk
Search growth status: Exploding
Year founded: 2015
Location: Huesca, Spain
Funding: $37.2M (Series B)
What they do: IriusRisk is an automated threat modeling tool designed to help organizations proactively design and build secure applications. It automates repetitive threat modeling tasks, allowing security teams to focus their resources more effectively, and is scalable to handle threat modeling for a wide range of applications, from a single application to thousands.
IriusRisk is particularly beneficial for security teams and organizations looking to enhance their application security through efficient and scalable threat modeling processes.
20. Menlo Security
5-year search growth: 54%
Search growth status: Regular
Year founded: 2012
Location: Mountain View, CA
Funding: $250.8M (Series E)
What they do: Menlo Security is a cybersecurity company that develops tools against malware and phishing. The company’s technology mirrors content from a remote browser in the cloud in order to enable secure web access.
Key Takeaways
That concludes our list of 20 growing startups in the cybersecurity space.
From endpoint protection to email security, the products that these startups are creating tackle a wide range of cybersecurity business needs. With ongoing digital transformation, we can expect further growth in the cybersecurity space in 2025 and beyond.
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Written By
Josh is the Co-Founder and CTO of Exploding Topics. Josh has led Exploding Topics product development from the first line of co... Read more