10 Top Cloud Security Companies (Updated 2023)

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Cloud security is not only a hot commodity, but a necessary one, and businesses are steadily increasing their adoption of services provided by the top cloud security companies.

Research firm Markets and Markets estimates that the overall global cloud-managed services market was worth US$99 billion in 2022, and is projected to reach US$164 billion by 2027.

According to its Cloud Managed Services Market report, the market’s drivers are “(g)rowing demand for cloud managed services among enterprises and inadequate cloud expertise among IT professionals.’

Unfortunately, these services are also vulnerable to the growing number of costly cybersecurity threats and data breaches. Emergen Research sees these threats as fueling growth in the cloud security market to the tune of US$170.51 billion by 2032.

With the industry poised for substantial growth, here’s a look at 10 top cloud security companies in 2023, according to Emergen Research. Companies are listed in order of market cap, with data current as of market close on September 28, 2023.

1. Microsoft (NASDAQ:MSFT)

Company Profile

Market cap: US$2.33 trillion

First on this list of top cloud security companies is Microsoft, which generates billions in revenue each quarter from its intelligent cloud services division. Microsoft Azure, its cloud platform, provides services to internet of things (IoT) systems in combination with chip design through Azure Sphere, while Azure Stack allows users to have their data analyzed in real time.

Microsoft is making its cloud systems compatible with open-source systems; it is also providing a host of artificial intelligence (AI) applications through Azure, including advanced data analytics, speech recognition and language translation. When it comes to cloud security, Microsoft has a team of cybersecurity threat intelligence experts who have worked with government officials and policymakers. Microsoft leverages its security expertise and experience to create critical cloud infrastructure protections.

The tech giant plans to launch its Microsoft Cloud for Sovereignty in December 2023, which it says will ‘enable governments to meet their compliance, security and policy requirements while harnessing the cloud to deliver value to their citizens.’

2. Alphabet (NASDAQ:GOOGL)

Company Profile

Market cap: US$1.67 trillion

The Google Cloud Platform and G Suite are among the cloud services offered by Alphabet’s Google. The company’s G Suite services encompass enterprise applications such as Gmail, Google Docs and Google Drive, which were built on the backbone of its cloud services. The Google Cloud platform has become a core driver of the company’s revenue, increasing in each of the last five years and generating a profit in two consecutive quarters as of Q2 2023.

Google Cloud has added dozens of new security features related to its cloud applications in recent years. For example, Access Transparency is extending its cloud security services to the G Suite platform. Access Transparency logs the details of when Google employees interact with a user’s data. In addition, Google has launched a data loss prevention user interface, a cloud security scanner and security health analytics features.

In June 2023, the company announced the addition of new threat detection, investigation and response capabilities within its Chronicle Security Operations platform.

3. Amazon (NASDAQ:AMZN)

Company Profile

Market cap: US$1.67 trillion

US ecommerce and cloud-computing giant Amazon has a broad spread of customers, from startups to established companies. The company’s Amazon Web Services (AWS) provides computing power, database storage, content delivery and a number of other functionalities to assist in business growth and scaling. Amazon stores information in its AWS data centers, which have security controls that include network firewalls, client-controlled encryption and real-time insight with security advisors.

AWS is Amazon’s fastest growing and most profitable business segment, generating US$80 billion in revenue in 2022.

4. Broadcom (NASDAQ:AVGO)

Company Profile

Market cap: US$343.88 billion

Global technology giant Broadcom designs, develops and manufactures semiconductors, but it has also built a large portfolio of embedded and mainframe security solutions that includes payment authentication software and its Symantec Enterprise Cloud suite of integrated cybersecurity software.

In September, the company’s Symantec division partnered with Google Cloud to embed generative AI into the Symantec Security platform. The move will help Symantec customers thwart cyber attacks. “Symantec has a long history of designing, implementing, and fine-tuning artificial intelligence and machine learning for critical security use cases and helping our customers drive value out of AI,” stated Adam Bromwich, Broadcom’s CTO and Head of Engineering, Symantec Enterprise Division.

5. Cisco Systems (NASDAQ:CSCO)

Company Profile

Market cap: US$218.41 billion

Cisco Systems has a large portfolio of multi-cloud products and applications alongside strong relationships with Azure, AWS and Google Cloud. The company generated US$57 billion in revenue for its 2023 fiscal year.

One of Cisco’s core cloud tools is SecureX, which that connects the Cisco Security portfolio to the cloud and automates security initiatives across the infrastructure. Emergen Research states that Cisco also ‘helps ventures to connect and observe devices, compute and manage data, and secure and automate operations.’

In September 2023, the company introduced its Cisco Secure Application module as part of its Full Stack Observability (FSO) platform. ‘Secure Application can combine data from multiple sources to generate a business risk score for applications or services that have a likelihood of exploitation and attacks,’ explains Network World. ‘It’s designed to gauge the seriousness of vulnerabilities and prioritize which are most pressing.’


Company Profile

Market cap: US$128.94 billion

IBM’s cloud services are used by companies globally. Central to its future goals is transitioning enterprises onto the cloud in a way that suits them best, be that a private, public or hybrid cloud system. The company’s software-as-a-service security platform provides its users with real-time insights to detect endpoint security vulnerabilities and prevent threats. The platform helps customers use less infrastructure on security solutions, deploying them instead through the IBM Cloud and its cloud-computing security services.

IBM has acquired dozens of companies in the last few years in an effort to strengthen its hybrid cloud and AI capabilities.

One such acquisition came in 2019, when IBM acquired open-source enterprise software maker Red Hat for US$34 million, which at the time was one of the biggest tech deals in the industry’s history. Red Hat was incorporated into IBM’s hybrid cloud division, and its products have aided greatly in IBM’s ability to generate cloud revenue. A few years later, IBM acquired Turbonomic, a network performance management and application resource management software provider, in a US$2 billion deal.

More recently, in May 2023, IBM acquired Polar Security with the goal of integrating Polar Security’s data security posture management (DSPM) technology within its Guardium data security products. ‘With the integration of Polar Security’s DSPM technology, IBM Security Guardium will provide security teams with a data security platform that spans all data types across all storage locations – SaaS, on premise and in public cloud infrastructure,’ the company stated.

7. Fortinet (NASDAQ:FTNT)

Company Profile

Market cap: US$46.03 billion

Fortinet’s forte is end-to-end cybersecurity infrastructure products and services, including firewalls, antivirus tools, intrusion prevention and endpoint security. The company’s cybersecurity platform protects data across digital infrastructure systems, such as networked, application, multi-cloud or edge environments.

This past summer, Fortinet added wireless and IoT security features to its FortiSASE platform, reports Network World. “The idea is that customers can now manage WLAN, IoT and all of the other SASE components, such as SD-WAN, securely from one central location,’ stated Fortinet vice president of products and solutions Nirav Shah. “We have thousands of FortiAP wireless access points deployed globally, and now they can be completely integrated within our cloud-delivered security stack.”

8. Splunk (NASDAQ:SPLK)

Company Profile

Market cap: US$24.72 billion

Cybersecurity and data analytics firm Splunk has made a name for itself over its 20 year history. The company provides operational intelligence software that can monitor, analyze and report on real-time machine data. The company generated US$3.65 billion in revenue for its FY 2023 ended January 31, 2023, and reported its first ever US$1 billion quarter revenue in its Q4 2023.

Splunk is now the subject of US$28 billion acquisition by Cisco. ‘Splunk’s security capabilities complement Cisco’s existing portfolio, and together, will provide leading security analytics and coverage from devices to applications to clouds,’ the press release states.

9. Akamai (NASDAQ:AKAM)

Company Profile

Market cap: US$16.2 billion

Akamai Technologies provides a suite of cloud computing, security and content delivery services. The company’s popular edge and cloud platform Akamai Connected Cloud allows enterprises to develop, operate and secure their applications and workloads.

Akamai operates in more than 4,100 edge points of presence across 131 countries. In September 2023, the US-based company continued to expand its reach not only across the US, but also into Asia, Europe and Latin America. ‘With Akamai Connected Cloud, we’re taking an outside-in, distributed-first approach built on a commitment to cloud-native technologies and the same network many of the world’s largest companies have relied on for more than two decades,’ said Adam Karon, Akamai’s Cloud Technology Group chief operating officer and general manager.


Company Profile

Market cap: US$9.54 billion

F5 is a multi-cloud application services and security company based in Seattle, Washington. The US company specializes in wide-area network optimization, application security, DDoS protection, cloud computing, cybersecurity and identity and access management.

F5’s cloud-based services include SaaS-based security, networking and application management to help its customers deploy, secure and operate applications in various cloud-native environments, such as data centers, multi-cloud, network edge and enterprise edge.

In the spring of 2023, the company introduced new AI-powered app and API security tools for its customers. “Applications and APIs are the building blocks of the digital experiences through which we all work, bank, shop, access healthcare, travel, and play. And those experiences are only as secure as the most vulnerable app or API,” stated Kara Sprague, F5’s executive vice president and chief product officer.

Securities Disclosure: I, Melissa Pistilli, hold no direct investment interest in any company mentioned in this article.

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