51 Types of As-a-Service Offerings

The cloud is here—and so are its acronyms. Since software as a service (SaaS) hit the world in 2001, the “as a service” model has been extended to just about everything you can think of. Along the way, the definition has become a little muddied.

It used to be that as-a-service offerings meant something delivered on a subscription basis via the cloud, without a physical component. Hence software is delivered to your computer continually via the internet rather than a program you purchased for a one-time fee and installed from a disc.

These days, though, as-a-service offerings can mean just about anything delivered by subscription or even just a plain old outsourced service, whether the cloud is involved or not. Some -aaS models are an industry category and some are proprietary to a single company. It’s enough to drive an IT pro mad trying to keep up.

So if your head is spinning, don’t worry—you’re not the only one. To help, we’ve pulled together a list of 51 as-a-service offerings, everything from AIaaS to XaaS. For 25 of the most important, we provide a brief description and a look at the market opportunity.

Did we miss anything? Let us know in the comments.

AIaaS
Artificial Intelligence as a Service

AI as a Service (AIaaS) refers to the provision of artificial intelligence (AI) capabilities and services through cloud-based platforms. It allows businesses to leverage AI tools and technologies without having to develop or maintain their own AI infrastructure. This includes services like machine learning, natural language processing, and data analytics, which can be accessed and utilized on-demand.

Market: AI as a Service (AIaaS) is changing the game for businesses by offering cost-effective, scalable AI capabilities through cloud-based models. This means companies can tap into advanced AI without needing a team of in-house experts. In 2023, the global AIaaS market was worth over $9.3 billion. And the growth doesn’t stop there—it’s expected to soar to a whopping $98.21 billion by 2030.

BaaS
Backend as a Service

BaaS, or Backend as a Service, is a cloud service model that provides developers with the tools and infrastructure needed to build and manage the backend of applications without having to handle server management or complex backend programming themselves. It helps developers with faster app development, allowing them to focus on building the app’s features instead of spending time wondering how to scale.

Market: The global backend-as-a-service (BaaS) industry made $3.1 billion in 2022 and is expected to reach $28.7 billion by 2032, growing at an impressive annual rate of 25.3% from 2023 to 2032.

also
Backup as a Service
Blockchain as a Service
Building as a Service

CaaS
Cloud as a Service

Also known as “cloud services,” CaaS is an all-in-one cloud computing service that combines Infrastructure as a Service, Platform as a Service, and Software as a Service technologies in one subscription.

Market: This CaaS market is valued at $264.8 billion in 2019 and projected to reach $927.5 billion by 2027.

CaaS
Containers as a Service

Containers as a Service (CaaS) is a cloud computing service that lets developers deploy and manage containerized applications, a software package that bundles everything needed to run an app (code, runtime, configuration, and system libraries) so it can operate on any host system. It provides businesses of all sizes with portable and easily scalable cloud solutions. No wonder the sector is exploding.

Market: Valued at $1.3 billion in 2018, this is another CaaS market with huge growth: it reached $2.1 billion in 2023 and is projected to reach $10.77 billion by 2030.

CaaS
Country as a Service

What if you’re Estonia—technically advanced with high living standards, but no one wants to live there? Offer e-residency with access to a variety of digital services in the country. Where could this go in the future? Watch for developments in banking, tax, and business.

Market: As of 2021, this tech has attracted tens of thousands of foreign entrepreneurs and businesses from across the world In four years, it produced the more unicorns—tech startups now worth over $1 billion—per capita than anywhere in the world.

also
Commerce as a Service
Communications as a Service
Compiler as a Service
Compliance as a Service
Content as a Service

DaaS
Data as a Service

Data as a Service (DaaS) is a cloud-based service model that provides users with on-demand access to data, allowing for easy data storage, processing, and analysis. The idea is that when data is siloed off, it’s not working as hard as it could. By centralizing data in the cloud, it can be accessed easily and analyzed far more deeply.

Market: The DaaS market is expected to grow from $20.74 billion in 2024 to $51.60 billion by 2029.

DaaS
Desktop as a Service

See Workspace as a Service

DaaS
Device as a Service

(aka Hardware as a Service, Notebook as a Service)

Device as a Service (DaaS) is a subscription-based model where businesses lease hardware, such as laptops and other devices, bundled with lifecycle services like setup, management, maintenance, and overall support. This model provides flexibility, reduces upfront costs, and ensures devices remain updated and secure. Is this a recurring revenue opportunity for MSPs? Or a chance for hardware vendors to disinter-mediate them? HP, for one, offers device aaS as a channel program, and Lenovo is also getting in on the action. Seems most vendors will. See Surface as a service below.

Market: The global DaaS market was valued at $51.7 billion in 2021, and is projected to reach $1.8 trillion by 2031.

also
Database as a Service

DRaas
Disaster Recovery as a Service

Disaster Recovery as a Service (DRaaS) is a cloud-based solution that ensures data protection and business continuity by replicating and hosting physical or virtual servers to enable rapid recovery in case of a disaster—ideally before your users even notice a hiccup. It minimizes downtime and data loss, providing seamless access to critical applications and information. And more robust than backup aaS.

Market: The DRaaS is a quickly expanding market that’s expected to grow from $10.7 billion in 2023 to $26.5 billion by 2028.

EaaS
(Test) Environment as a Service

EaaS (Environment as a Service) is a cloud-based solution that provides on-demand, scalable, and customizable test environments for software development and testing. Going further than virtual machines or containers, this service enabling teams to simulate real-world scenarios efficiently and cost-effectively.

Market: The EaaS market reached $13.0 billion in 2023 and is projected to reach $55.2 billion by 2032.

FaaS
Function as a Service

Function as a Service (FaaS) is a cloud computing service model that allows developers to execute code in response to events without managing the underlying infrastructure, often used for building microservices and serverless applications.

Market: The FaaS market is estimated at $17.70 billion in 2024, and is expected to reach $44.71 billion by 2029.

HaaS
Hardware as a Service

See Device as a Service, Notebook as a Service

IaaS
Infrastructure as a Service

One of the fundamental -aaS offerings, infrastructure as a Service (IaaS) is a cloud computing model that provides virtualized computing resources over the internet, allowing businesses to rent servers, storage, and networking infrastructure on a pay-as-you-go basis. This service makes world-class IT infrastructure available to any size of business, with setup and maintenance outsourced to third parties. A huge number of platforms, applications, and software have been built on cloud infrastructure.

Market: A booming sector that keeps growing. The IaaS market is expected to skyrocket from $51.3 billion in 2020 to $481.8 billion by 2030. Behemoths AWS, Google, IBM, Microsoft, and Oracle dominate.

also
Identity as a Service

IoTaaS
IoT as a Service

IoT as a Service (IoTaaS) provides cloud-based solutions and infrastructure to manage, monitor, and analyze IoT devices and data, enabling businesses to implement IoT without significant upfront investment. It offers scalability, flexibility, and reduced complexity for IoT deployments. IoTaaS is great for scenarios where there are sudden spikes in customer need and you need to quickly set up and tear down resources and don’t want to incur costs for devices you only need for a short period of time.

Market: The IoTaas market reached $330.3 billion in 2021 and is expected to grow to a staggering $650.5 billion by 2026.

KaaS
Knowledge as a Service

Knowledge as a Service (KaaS) is a cloud-based delivery model that provides users with access to knowledge resources, expertise, and information on-demand, often through AI and machine learning technologies. What we’re talking about here is data with context, as opposed to just raw data or information.

Market: Driven by the rise in big data, the KaaS market was estimated at $0.9 billion in 2023, reaching $2.4 billion by 2028.

LaaS
Location as a Service

Location as a Service (LaaS) is a cloud-based service that provides location data and geolocation services to applications and devices via APIs. This service enables businesses to track, analyze, and utilize geographic information without managing the underlying infrastructure. Retail (and other) companies sit on an enormous quantity of customer location data without the tools to pull business insight from it. Location aaS lets them rent high-quality location data analysis.

Market: LaaS is an emerging sector, expected to reach $286.7 billion by 2030.

also
Linux as a Service
Logging as a Service

MaaS
Monitoring as a Service

Monitoring as a Service (MaaS) is a cloud-based service model that provides tools and capabilities to monitor IT infrastructure, applications, and networks, enabling proactive management and troubleshooting. This helps organization avoid having to purchase and install a potentially costly on-premises monitoring tool.

Market: The MaaS market is expected to grow from $3.53 billion in 2024 to $7.06 billion by 2032.

also
Management as a Service
Messaging as a Service
(Bare) Metal as a Service
Mobile Backend as a Service

NaaS
Network as a Service

Network as a Service (NaaS) is a cloud-based model that allows users to manage and operate their network infrastructure virtually, offering scalability, flexibility, and cost efficiency without the need for physical hardware. Rented network functionality from a third party (usually an ISP) allows companies to scale up or down on port capacity as needed. This works best for companies with highly variable demand.

Market: The NaaS market is projected to grow from $13.2 billion in 2022 to $46.6 billion by 2027.

also
Notebook as a Service

OaaS
Operations as a Service

Operations as a Service (OaaS) is a managed service model where third-party providers handle an organization’s operational functions, such as IT, logistics, and supply chain management, allowing the business to focus on core activities. A new name for a managed service MSPs have been offering for years.

Market: The OaaS market was valued at $62.51 billion and is projected to reach a market size of $251.46 billion by 2030.

PaaS
Platform as a Service

IaaS moves IT hardware to the cloud but opens new challenges for developers in configuring and operating their app deployment platforms. Platform service is the answer. Platform as a Service (PaaS) is a cloud computing model that provides a platform and environment for developers to build, deploy, and manage applications without the complexity of managing the underlying infrastructure. This service provides not just infrastructure, but operating systems, software, databases, and other useful tools.

Market: Much smaller than IaaS but growing rapidly. Estimated at $75.7 billion in 2023 and expected to reach $290.2 billion in 2030.

RaaS
Ransomware as a Service

Ransomware as a Service (RaaS) is a cybercrime model where ransomware creators sell or lease their malware to other criminals, allowing them to deploy ransomware attacks without needing to develop the malware themselves. Aka DIY ransomware kits that would-be criminals can purchase and implement. This is one service you DON’T want to deliver. Unfortunately there’s not a whole lot you can do about the sale of code kits online. What you can do to protect your business? Protect against ransomware when it attacks.

Market: Oversupply is driving the cost of kits down—that’s bad. However, the growth of this hacker market is driving the growth of the ransomware protection market, which was valued $18.4 billion in 2023 and projected to reach $57.9 billion by 2030.

SaaS
Software as a Service

The granddaddy of the entire -aaS market. Software as a Service (SaaS) is a cloud computing model where applications are delivered over the internet as a service, allowing users to access software via a web browser without needing to install or maintain it locally. Providers like SaaS because regular monthly payments are better than one-time deals, and clients like its flexibility.

Market: The global SaaS market was valued at $261.15 billion in 2022 and is poised to grow from $296.93 billion in 2023 to $829.34 billion by 2031.

SECaaS
(IT) Security as a Service

IT Security as a Service (SECaaS) is a cloud-based service that provides comprehensive security solutions, including antivirus, intrusion detection, and identity management, delivered over the internet to protect IT systems and data. This could be provided by a third-party like an MSSP (managed security service provider).

Market: The global SECaas market is expected to grow from $12.4 billion in 2021 to $23.8 billion by 2026.

also
Storage as a Service
Surface as a Service

UaaS
Unified Communications as a Service

Unified Communications as a Service (UCaaS) is a cloud-based delivery model that provides a variety of communication and collaboration applications and services, such as voice, video, messaging, and conferencing, through a unified platform accessible over the internet. VoIP, instant messaging, LinkedIn, Skype, phones, Wi-Fi, social media… new communication channels appear at ever-shorter intervals and businesses struggle to keep their networks organized, secure, and efficient. Unified communications aaS vendors take care of all the hardware and software while guaranteeing a level of quality.

Market: UCaaS has a strong, established market with steady growth. Expected to expand from $52.9 billion in 2022 to reach $311.6 billion by 2032.

also
Understanding as a Service

VaaS
Video as a Service

Video as a Service (VaaS), aka cloud-hosted video conferencing, is a cloud-based delivery model that provides video conferencing, streaming, and video content management services, allowing users to access and share video content over the internet without needing to manage the underlying infrastructure. As more companies move from phone to video conferencing, the IT headaches of keeping them running multiply. Companies moving to cloud-based video and enjoy higher-quality images and fewer dropped calls, with technicians on standby to keep things running smoothly.

Market: The VaaS market has seen huge growth during and after the pandemic due to increased remote or hybrid working models. The market is estimated at $6.62 billion in 2024 and is expected to reach $13.22 billion by 2029.

VaaS
Virtualization as a Service

Virtualization as a Service (VaaS) provides virtualized computing resources such as servers, storage, and networks, allowing users to run multiple virtual machines and applications without managing physical hardware. One distant server, many accessible virtual machines. Ten years ago, turning one physical server into several virtual machines was a groundbreaking way to fully use server capacity and free up physical space. Today, it can be done via the cloud.

Market: Virtualization as a whole is considered a mature market—not many new opportunities here. Still, the market’s projected to grow from $86.38 billion in 2023 and to $164.13 billion by 2030.

WaaS
Workspace as a Service

Workspace as a Service (WaaS) is a cloud-based service that delivers virtual workspaces or virtual desktop environments, allowing users to access their desktop environments, applications, and data from any device, anywhere, providing flexibility and enhancing remote work capabilities. Just log in to access your office desktop, exactly as you like it, with all the business data and applications you need, from any device you choose. Easy to see why this sector has taken off, especially among companies with remote workers and small businesses without resources to efficiently manage their own IT.

Market: The WaaS market is large and growing steadily: $7.43 billion in 2022 with expectations to hit $25.24 billion by 2030.

also
Wi-Fi as a Service
Windows as a Service

XaaS
Anything (or everything) as a Service

Anything (or Everything) as a Service (XaaS) is a broad term that refers to the delivery of various services over the internet, encompassing a wide range of IT functions and resources such as software, platforms, infrastructure, and more, allowing for flexible, on-demand access.

Market: The XaaS market was valued at $409.5 billion in 2023 to $2.47 trillion by 2032.