List of the Top 10 Infrastructure-as-a-Service (IaaS) Providers for Microsoft 365 in 2025

PhoenixNAP, a prominent global provider of Infrastructure as a Service (IaaS), assists organizations across various scales in fulfilling their IT demands for performance, security, and scalability. With services accessible from key edge locations across the U.S., Europe, Asia-Pacific, and Latin America, phoenixNAP ensures that businesses can effectively expand into their desired regions. Their offerings include colocation, Hardware as a Service (HaaS), private and hybrid cloud solutions, backup services, disaster recovery, and security, all presented on an operating expense-friendly basis that enhances flexibility and minimizes costs. Built on cutting-edge technologies, their solutions offer robust redundancy, enhanced security, and superior connectivity. Organizations from diverse sectors and sizes can tap into phoenixNAP's infrastructure to adapt to their changing IT needs at any point in their growth journey, ensuring they remain competitive in the ever-evolving digital landscape. Additionally, the company’s commitment to innovation ensures that clients benefit from the latest advancements in technology.

Netreo stands out as a premier full-stack platform for managing and observing IT infrastructure. It serves as a comprehensive source of truth for proactive monitoring of performance and availability across extensive enterprise networks, infrastructures, and applications. Our platform is designed to cater to the needs of: IT executives, who benefit from complete visibility into business services, down to the underlying infrastructure and networks that sustain them. IT Engineering teams, who utilize it as a decision-making tool to effectively plan and design modern solutions. IT Operations groups, who gain real-time insights into issues within their environments, allowing them to identify bottlenecks and understand their impact on users. These valuable insights extend to mixed systems and vendor environments that are dynamic and ever-evolving. With ongoing support for over 350 integrations, we continue to expand our partnerships with network, storage, virtualization, and server vendors. As a result, organizations can adapt seamlessly to the complexities of their IT landscapes.

Flexiscale's hosted desk service offers a versatile and secure solution tailored for businesses accommodating both remote and on-site employees. With this service, you can seamlessly utilize a Windows desktop whether you're in the office or working from home. Your data and applications are consistently safeguarded and regularly backed up. Regardless of whether you access it from a PC, Mac, tablet, or smartphone, Flexiscale's hosted desktop experience remains unchanged. You can securely log into your desktop through any web browser, enabling you to work from virtually anywhere while ensuring that your business data is continuously protected. The service eliminates the complexities and costs often linked to managing desktop infrastructure. Moreover, it allows for the instant creation and deployment of new user desktops as needed, enhancing operational efficiency. This flexibility empowers businesses to adapt quickly to changing work environments.

Enhanced capabilities for full-lifecycle cloud native development allow customers to build applications that are prepared for the future. By leveraging the extensive resources of the cloud now, organizations can design applications that meet the demands of tomorrow. Traditionally, strategies for adopting the cloud have focused primarily on migrating infrastructure and applications, often overlooking necessary updates in the foundational code. While the cloud has always offered benefits such as elasticity and scalability, its true potential is unlocked only when application code undergoes modernization. Adopting cloud native technologies and modern architectures facilitates the development of innovative applications that fully utilize the cloud’s capabilities, improving agility and accelerating innovation. By creating applications that can self-heal and automatically scale, organizations free themselves from traditional server limitations. Serverless architectures not only enhance efficiency and reduce costs but also shift the burden of infrastructure and software management to the platform, leading to a more efficient development process. This transformation enables companies to prioritize innovation over infrastructure, setting the stage for remarkable advancements in their offerings. Ultimately, embracing this shift in mindset can propel organizations into a new era of rapid technological progress.

Ntirety stands out as the exclusive provider of hybrid and multi-cloud managed solutions that drive exceptional business outcomes, empowering organizations to be agile and prepared for the future by actively reducing risks and optimizing costs. In today’s data security environment, it is crucial to collaborate with a trusted partner who has proven expertise to help propel your business forward while minimizing risks. Known for its excellence in Compliant Security, Multi-Cloud Optimization, and Infrastructure Management, Ntirety’s services are designed to enhance your business results significantly. Our team, which holds over 500 esteemed technical certifications, has the extensive expertise required to recommend, manage, troubleshoot, and protect the most effective infrastructure solutions tailored to your specific organizational needs, both now and as they evolve. Ntirety is committed to aligning with your objectives and those of your clients by offering specialized resources, strong support, and adaptable technical skills across multiple platforms, all while emphasizing the development and execution of processes. By partnering with Ntirety, you are not merely acquiring a service; you are establishing a collaborative relationship that fosters ongoing improvement and innovation in your business practices, ultimately positioning you ahead of the competition. Engaging with Ntirety ensures that you have a strategic ally focused on your long-term success and operational excellence.

The rate of change is swiftly increasing, as companies strive for agility and speed while also prioritizing security to stay ahead in the market. Managed infrastructure services allow these companies to focus on essential areas like customer interaction and reducing costs associated with handling basic applications, operating systems, and infrastructure. These services come with a specialized application-level service level agreement (SLA) designed to align with unique business needs. By opting for NTT Ltd. for all-encompassing managed cloud solutions, organizations can save valuable time by avoiding costly optimization initiatives. They can leverage NTT Ltd.'s robust investments in a strong cloud infrastructure, which is underpinned by top-tier systems that ensure security, flexibility, and outstanding performance. This strategy addresses the challenges of vendor lock-in, allowing clients to run various workloads on the most appropriate cloud platforms. Furthermore, businesses enjoy the freedom to modify their environments based on evolving requirements throughout the year, enabling quick responses to shifting market demands. Such an adaptable approach not only promotes innovation but also equips organizations to excel in a constantly evolving business landscape. Ultimately, this combination of speed, security, and service empowers companies to achieve sustainable growth and stay competitive.

The global landscape is perpetually shifting, with an increase in customer demands and user preferences occurring alongside the development of new regulatory standards. As technological progress continues and fresh challengers enter the arena, it becomes crucial to react quickly to these evolving obstacles. To stay ahead in the market, one must utilize specialized knowledge that enhances the capabilities of your ClearPath Forward® ecosystem. Collaborating with Unisys enables you to preserve the integrity of your dependable ClearPath Forward environment while also modernizing your applications to include state-of-the-art digital and cloud-native features, all while ensuring seamless operations. You will have access to a diverse range of deployment solutions, from integrated systems to public cloud options, along with services designed to alleviate concerns related to migration, staffing, and operations. For organizations that consider aspects such as security, resilience, availability, and scalability as paramount, Unisys stands out as the perfect ally. Furthermore, by enrolling in ClearPath Forward Connection, you will remain updated on the latest innovations in ClearPath Forward platforms and additional offerings, which will further guarantee your organization stays at the cutting edge of industry advancements. This partnership not only enhances operational efficiency but also fosters a culture of continuous improvement and adaptation to the evolving technological landscape.

Investing in the right technology at the ideal times and on appropriate platforms is crucial for driving innovation, boosting customer loyalty, and growing your business. By effectively utilizing cloud technology, you can achieve desired outcomes that may provide returns on investment up to three times greater, all while facilitating faster results at reduced costs, risks, and disruptions. DXC is dedicated to assisting you in making well-informed decisions about migrating applications to the cloud and determining the best times for these transitions. With DXC Cloud services, you can maximize your data's potential while ensuring a secure environment. Our proficiency in managing hybrid IT systems for some of the world's largest enterprises highlights our understanding of the essential role that cloud computing plays in critical IT functions. Each year, our cloud migration services help transition 65,000 workloads to the cloud, and we have effectively modernized countless mainframe systems while successfully migrating over 15,000 applications. Let us partner with you to define, implement, and manage your cloud strategy with precision. By collaborating with DXC, your cloud journey will not only be executed flawlessly but will also reach its utmost potential, allowing us to build a strong digital foundation that advances your business to new heights. In this rapidly evolving technological landscape, having a reliable partner like DXC can make all the difference in achieving sustained success.

Reliable and high-performance infrastructure designed specifically to cater to the distinct needs of your business operations is essential. We will develop an optimal solution for you, ensuring that our engineers implement a resilient and future-proof system that supports your company's growth and long-term success. Our experts will manage a seamless migration process, utilizing a holistic approach, clear communication, and minimal disruption to your current business activities. Our network optimization solutions are designed for maximum efficiency, reliability, and functionality, guaranteeing top-tier performance consistently. Protect your infrastructure and sensitive information with cutting-edge defenses against cyber threats and harmful online activities. Moreover, our backup and disaster recovery services will safeguard you from potential data losses, allowing your business to operate without interruptions. With Codero Private Cloud, you can enjoy enhanced performance, privacy, and control over your resources, facilitating better management. Additionally, you have the option to refer or resell, as Codero is dedicated to supporting your brand's expansion. Our experienced team will take the necessary time to comprehend your company's complexities, operational demands, goals, and the specific workloads you intend to handle, delivering customized solutions that align with your aspirations. This partnership is focused on empowering your business to flourish in a rapidly changing digital environment while ensuring that you stay ahead of the competition. Your success is our mission, and we are committed to being a valuable ally in your journey.

The realm of technology is ever-evolving, marked by continuous progress and innovation. Our premium offerings guarantee that your business stays secure and connected without interruption. We strive to be experts in every facet of IT services, lifting that burden off your shoulders. We provide secure, flexible, and fully managed networks designed to fulfill all your business needs. Our enterprise-grade IT solutions prioritize dependability, security, and top-tier performance. We equip your organization to counter both current and emerging cybersecurity challenges effectively. Utilizing our monitoring and automation technologies, we protect your operations and ensure they run effortlessly. By working closely with you, we create tailored solutions that resonate with your technical requirements and capabilities. A reliable, high-speed internet connection is crucial for your business's prosperity. Any disruption can lead to downtime and significant financial repercussions. Ensure seamless operations and connectivity with our extensive array of network services. Choose the services you need today, assured that our solutions will scale and adapt alongside your business growth. Furthermore, our dedication to innovation drives us to constantly improve our services, preparing to meet the future challenges of the industry while keeping your business at the forefront of technology. This proactive approach not only enhances your operational efficiency but also positions your business to thrive in an increasingly competitive landscape.