SaaS: The quiet force behind cloud computing
Hello, I'm Jon. I write a blog that explains the world of AI and technology in an easy-to-understand way for Japanese people. Today, I'd like to talk about "Software as a Service (SaaS)," which plays a major role behind the scenes of cloud computing. SaaS is a system for delivering software over the internet, and examples of services you use every day, such as Google Workspace and Zoom, are examples of this. In this article, I'll explain in an easy-to-understand manner, even for beginners, why SaaS is the "quiet force" of the cloud, while also exploring the latest trends for 2025. Based on an InfoWorld article (current as of September 2025), I'll explore the background behind SaaS as the driving force behind cloud transformation.
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What is SaaS? Let's understand the basics
SaaS stands for Software as a Service, and is a service model in which software is provided via the cloud (a server on the Internet). Unlike traditional software, it does not need to be installed on a computer and can be accessed anytime from a browser or app. Typical examples include CRM (customer relationship management) tools like Salesforce and team communication apps like Slack. These can be used on a subscription basis (monthly or yearly fee), with updates and maintenance handled automatically by the provider.
Within the overall cloud computing landscape, SaaS is one of the major forms, alongside IaaS (Infrastructure as a Service, providing infrastructure such as servers) and PaaS (Platform as a Service, providing development environments). According to an InfoWorld article (as of September 26, 2025), SaaS is a quiet driving force behind cloud transformation, offering significant benefits to businesses through its scalability and rapid deployment. As of 2025, the SaaS market is growing rapidly, with a Taiwan News report (September 18, 2025) predicting that the global SaaS market will reach more than $703 billion by 2030, up from approximately $144 billion in 2021.
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The Latest Trends in SaaS and Cloud Computing in 2025
As we enter 2025, SaaS is attracting attention due to trends such as AI integration and enhanced security. According to an article by Simplilearn (published September 11, 2025), the use of AI/ML (machine learning) is cited as a trend in cloud computing, and AI functions are becoming standard features in SaaS tools. For example, CRMs like Salesforce are promoting automation using AI.
Additionally, the Cloudwards report (August 1, 2025) lists a variety of cloud trends for 2025. The main ones are summarized below in bullet points:
- AI and machine learning integration: SaaS tools use AI to automate tasks, such as data analysis and customer support, making them more efficient.
- Hybrid Cloud AdoptionAccording to CloudZero statistics (May 12, 2025), over 90% of businesses have adopted hybrid cloud (a combination of public and private clouds), and SaaS is supporting this.
- Improved security: An Analytics Insight article (September 2025, about a week ago) highlighted the zero trust model (security that assumes no trust whatsoever) as a trend in cloud security, which SaaS providers are strengthening.
- edge computing: This technology reduces latency by processing data closer to the device, and its application in SaaS is expanding.
Furthermore, PitchBook's Q2 2025 report (around September 25, 2025, three days ago) analyzed VC investment trends in the infrastructure SaaS sector, noting that investment in AI-native SaaS apps is on the rise. A post by X (formerly Twitter) also pointed out the rise of AI workflow tools and opportunities for vertical SaaS (industry-specific) as SaaS trends for 2025. For example, specialized tools for the medical and legal fields are popular.
A Tierpoint blog post (July 2, 2025) states that advances in cloud-native technologies are driving SaaS innovation, allowing companies to quickly add new features and improve their competitiveness. According to an OpenPR market analysis (September 2025, two weeks ago), the SaaS cloud market is expected to reach $800 billion between 2025 and 2031, with a compound annual growth rate of 8.9%.
The Benefits and Challenges of SaaS: A Practical Perspective
The biggest advantages of SaaS are its ease of adoption and cost-effectiveness. X's post (May 3, 2025) points out that SaaS is offered as a subscription, allowing companies to reduce their initial investment and leaving maintenance to the provider. Popular examples include Google Workspace, Salesforce, Slack, Zoom, and Dropbox, which facilitate team collaboration and file sharing.
The advantages are summarized in bullet points:
- Accessibility: Available from anywhere with internet.
- Scalability: Flexible response even when the number of users increases.
- Automatic update: The latest features are automatically added, so you're always up to date.
- Cost reduction: No hardware required, low operational costs.
However, there are also challenges. X's post (June 9, 2025) warns that 2025 will be a critical year for SaaS companies with annual recurring revenue (ARR) of $10M-$300M and a growth rate of less than 20%. A post on July 1, 2025 also lists important points to consider when building SaaS, such as offering Google Login, starting with a paid service, and the importance of marketing. In terms of security, there is a risk of data leaks, and CloudDefense.AI's prediction (updated January 31, 2024, valid as of 2025) predicts that security management will be key as the transition to digital infrastructure progresses.
Furthermore, a recent post by X (September 25, 2025) discusses the possibility that generative AI will disrupt SaaS, pointing out the impact of AI using the example of Salesforce's stock price decline. To overcome these challenges, companies are introducing multi-factor authentication and regular audits.
Summary: Thinking about the future of SaaS
As mentioned above, SaaS will further evolve as the foundation of cloud computing by 2025 with AI integration and enhanced security. If you plan to use it in your business or daily life, we recommend starting with a free trial.
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In summary, Jon says that SaaS may not be a very visible presence, but it is an important technology that supports modern digital life. Even if you're a beginner, I encourage you to start by getting familiar with the tools you already have and experience the convenience of the cloud. We'll continue to provide you with the latest trends in an easy-to-understand format, so be sure to check out our blog.
Reference sources
- InfoWorld: SaaS: The quiet power behind cloud computing (As of March 2025, 9)
- Cloudwards: The Top 28 Cloud Computing Trends in 2025 (August 1, 2025)
- Simplilearn: 21 Cloud Computing Trends That Will Dominate in 2025 (September 11, 2025)
- CloudZero: 90+ Cloud Computing Statistics: A 2025 Market Snapshot (May 12, 2025)
- Tierpoint: The Latest Cloud Computing Innovation Trends for 2025 (July 2, 2025)
- CloudDefense.AI: The Future of Cloud Computing 2025-2030 (Updated on January 31, 2024)
- PitchBook: Q2 2025 Infrastructure SaaS VC Trends (Around September 25, 2025)
- Analytics Insight: 7 Cloud Computing Trends in Enterprise IT (September 2025, 1 week ago)
- OpenPR: SaaS Cloud Computing Market Segmentation Analysis (September 2025, 2 weeks ago)
- Taiwan News: Software as a Service (SaaS) Market to Reach US$ 703.19 Billion by 2030 (September 18, 2025)
- Various posts on X (formerly Twitter) (May to September 2025, general discussions based on trends)