Top 15 Cybersecurity Companies in 2025: CrowdStrike, Cisco, Zscaler & More

In 2025, cybersecurity is more important than ever, and so are cybersecurity companies. In June 2024, the cybersecurity technology market was valued at $185.7 billion, and this number is expected to climb even higher by the end of the decade.

A cyberattack can have a lasting impact on a business. For example, IBM reports that the average cost of a data breach worldwide rose to $4.88 million in 2024, a 10% increase and the most significant rise since the pandemic.

Many of these attacks involve ransomware, giving hackers power over a business’s data and the ability to demand any amount of money they choose. A good cybersecurity company can help you avoid such scenarios.

Industry leaders like Palo Alto Networks and CrowdStrike continue to dominate the market, but smaller companies are also carving out space for themselves.

Here are the top 15 cybersecurity companies you should know about, taking into account annual revenue, reputation, breadth of experience and services, and previous security breaches or failures.

Table of Contents Table of Contents

1. Key Takeaways
2. Top 15 Cybersecurity Companies in 2025
3. The Bottom Line
4. FAQs
5. References

Show Full Guide

Table of Contents

1. Key Takeaways
2. Top 15 Cybersecurity Companies in 2025
3. The Bottom Line
Show Full Guide
4. FAQs
5. References

Top 15 Cybersecurity Companies in 2025

1. Palo Alto Networks

Palo Alto Networks is one of the leading cybersecurity companies founded in 2005 by Nir Zuk, a former Check Point engineer. The company started gaining recognition in 2011 when Gartner listed it as an emerging leader in its Magic Quadrant for Network Firewalls.

Palo Alto Networks offers a wide range of security products, including advanced next-generation firewalls (NGFW) and endpoint detection and response (EDR) solutions.

It also leads in network security, zero trust, extended detection and response (XDR), IoT security, software-defined wide area network (SD-WAN), and secure access service edge (SASE). Organizations worldwide trust the company’s tools to protect against a variety of cyber threats.

2. CrowdStrike

CrowdStrike was founded in 2011 in response to widespread cyberattacks caused by malware that traditional antivirus software failed to detect. These attacks impacted nearly every industry. CrowdStrike has now become one of the fastest-growing cybersecurity companies in the industry.

CrowdStrike offers many products and services, including IT automation, exposure management, threat intelligence, cloud security, tabletop exercises, technical risk assessments, and more. Its flagship product, CrowdStrike Falcon, is an AI-powered platform that provides real-time protection against malware, ransomware, and other cyber threats.

CrowdStrike’s platform is trusted by some of the world’s largest organizations, including government agencies and Fortune 500 companies, to secure their networks and data.

3. Cisco Systems

Cisco Systems was founded in 1984 by Leonard Bosack and Sandy Lerner. Initially known for its networking hardware, Cisco has expanded its cybersecurity offerings through both internal development and strategic acquisitions.

A major acquisition came in 2023 with Splunk, but Cisco also added Isovalent, Lightspin, Oort, and Working Group Two to strengthen its security capabilities.

Cisco offers an extensive portfolio of security technologies, including firewalls, secure access service edge (SASE), zero trust, and threat intelligence.

The Cisco Umbrella platform is popular for DNS security, and Cisco SecureX is a unified security platform that simplifies threat detection and response across an organization’s infrastructure.

Cisco’s security solutions are used across various sectors, with high-profile clients like the State of Hawaii, Marriott International, Royal Caribbean Cruise Lines, and the NFL. The company’s existing networking customer base plays a significant role in driving the adoption of its security solutions.

4. Cloudflare

Cloudflare offers cloud-based security services that help businesses protect their websites, networks, and apps from all sorts of cyber threats. Founded in 2009, Cloudflare has grown into one of the largest cybersecurity companies and is used by about 30% of Fortune 1000 companies, including big names like DoorDash, Colgate-Palmolive, IBM, and LabCorp.

Its services include content delivery networks (CDN), web application firewalls (WAF), Distributed Denial of Service (DDoS) protection, and SSL/TLS encryption, all designed to speed up websites, ensure they stay online, and defend against cyberattacks. Cloudflare also provides DNS services and edge computing solutions to boost both performance and security.

The company says it blocks an average of 209 billion threats every day and has a long list of awards and honors from Fortune, Deloitte, Inc. Magazine, and more.

5. Fortinet

Fortinet is an American cybersecurity company based in Sunnyvale, California. It is one of the top-rated cybersecurity companies, developing and selling security tools like firewalls, endpoint protection, and intrusion detection systems. With offices worldwide, Fortinet provides solutions to organizations globally, including notable clients like IHG Hotels and Resorts, Jersey Mike’s, and Dave’s Hot Chicken.

The company’s most popular product is FortiGate, a high-performance firewall that integrates seamlessly with Fortinet’s other tools. Its product lineup includes everything from hardware like routers and access points to the cloud-based Security Fabric platform and FortiClient VPN.

6. IBM

IBM is one of the top companies providing computer security. The giant doesn’t just provide hybrid cloud computing solutions, AI technologies, and consulting services to businesses, but it’s also a major player in cybersecurity. Big Blue offers a range of solutions that focus on threat management, data security, and compliance.

One of IBM’s standout offerings is the IBM Security QRadar, a threat detection and response platform that helps organizations identify and mitigate cyber risks in real time.

IBM also provides managed security services, helping businesses monitor and respond to threats 24/7. Its portfolio includes advanced tools for endpoint protection, data encryption, and identity management.

7. Trend Micro

Trend Micro is an American-Japanese cybersecurity software company founded in 1988. It is considered one of the best cybersecurity companies in the world with R&D centers in 16 locations across every continent except Antarctica.

The company specializes in developing enterprise security software for servers, containers, cloud computing environments, networks, and endpoints.

Trend Micro’s cloud and virtualization security products are widely used by customers of VMware, Amazon AWS, Microsoft Azure, and Google Cloud Platform.

Its portfolio includes tools like antivirus software, full disk encryption, cloud workload protection platforms (CWPP), and intrusion detection and prevention systems (IDPS).

8. ZScaler

Zscaler was founded by Jay Chaudhry in 2007 with a vision to become the “Salesforce of cloud security.” Its flagship platform, the Zscaler Zero Trust Exchange, is the world’s largest security cloud, handling over 360 billion transactions and analyzing more than 500 trillion signals every day.

Zscaler’s cybersecurity approach focuses on context, such as where a user is, how secure their device is, and what kind of data is being shared, to decide whether access to an app should be allowed.

As part of the Zero Trust Exchange platform, this system helps shrink an organization’s attack surface and blocks hackers from moving deeper into the network. Zscaler also offers other powerful tools, like secure web gateways (SWGs) and deception solutions.

9. Akamai Technologies

Akamai Technologies is a cloud services and cybersecurity company known for its global network infrastructure that delivers fast and secure internet content. Founded in 1998, Akamai has also become a leader in cybersecurity. It now earns about two-thirds of its revenue from security and cloud computing solutions.

Akamai offers services like content delivery networks (CDNs), web application firewalls (WAFs), threat detection, and edge computing solutions. These services focus on improving website performance, enhancing security, and enabling businesses to scale effectively. Some of its most popular solutions include Akamai Edge Security, Kona Site Defender, and Akamai CDN.

10. Proofpoint

Founded in 2002, Proofpoint has become a leader in cloud-based security solutions, offering a range of services designed to safeguard communication and sensitive data.

Proofpoint provides security solutions such as email protection, threat detection, data loss prevention (DLP), and cloud security. Its particular focus is on defending against phishing, malware, and ransomware attacks. Some of its most popular products include Proofpoint Email Protection, Threat Intelligence, and Data Loss Prevention.

The company surpassed the $1 billion revenue mark before being acquired and taken private in 2021 by Thoma Bravo, the same firm that also owns Sophos.

11. Gen Digital

Gen Digital, once known as Symantec, has been protecting users online for years. In 2019, Symantec sold its enterprise business to Broadcom and rebranded as Norton LifeLock. Then, in 2022, the company merged with Czech cybersecurity firm Avast in an $8.6 billion deal.

Today, Gen Digital offers various security services, like antivirus protection, identity theft monitoring, and online privacy tools, for both individuals and businesses. Some of its most popular products include Norton 360, LifeLock, and CCleaner.

12. Leidos

Leidos was founded as Science Applications International Corporation (SAIC) in 1969. In 2013, SAIC underwent some big changes, splitting into two companies, with Leidos becoming the larger one. Leidos focuses on national security, health, and engineering.

Leidos offers various cybersecurity solutions, including offensive, defensive, and cyber-physical systems, working in areas like zero trust and quantum cryptography.

The company has major contracts with the Department of Defense, the Department of Homeland Security, the Intelligence Community, other U.S. government agencies, and some commercial markets.

13. Okta

Okta is an identity and access management (IAM) company founded in 2009. It primarily offers tools for user authentication, single sign-on (SSO), multi-factor authentication (MFA), and access management. Octa’s platform allows businesses to simplify user access to applications, enhance security, and ensure compliance with industry regulations.

The company would have ranked higher on this list, but it has had a bumpy ride lately. In 2022, Okta was hit by a phishing attack breach, and its GitHub source code was stolen.

In 2023, a series of attacks targeted high-profile customer environments over the summer, and a third-party vendor breach exposed health information for nearly 5,000 current and former Okta employees.

14. OneTrust

OneTrust is a relatively new cybersecurity company, established in 2016, that focuses on assisting businesses in building trust with their customers through data governance and compliance solutions.

The company is recognized for its range of tools designed to address privacy, security, and compliance requirements. OneTrust offers solutions that help organizations comply with global data privacy regulations, including GDPR, CCPA, and LGPD.

15. Sophos

Sophos is a globally recognized cybersecurity company that provides advanced security solutions for businesses and consumers alike. Established in 1985 and headquartered in Abingdon, UK, Sophos has built a reputation for its endpoint security, network protection, and cloud-native solutions.

It provides both consumer antivirus and enterprise solutions for WAF, NGFW, UTM, EDR, cloud workload protection platform (CWPP), encryption, XDR, MDR, and ransomware removal.

The Bottom Line

Almost every business is now at risk of cyberattacks, whether in healthcare, banking, retail, or the fast-food industry. This makes cybersecurity companies more important than ever.

Palo Alto Networks, Cisco, and CrowdStrike are currently leading cybersecurity solution providers. However, companies like OneTrust are also capturing significant market share.

FAQs