The Complete Guide to Infrastructure-as-a-Service (IaaS) Providers
Infrastructure-as-a-Service is the foundational layer of cloud computing: instead of buying, racking, and maintaining physical servers, you rent virtualized compute, storage, and networking on demand and pay only for what you use. IaaSDirectory is a curated, independently maintained catalogue of the real companies that sell that capacity — from the three global hyperscalers down to lean specialist clouds — so that engineers, founders, and procurement teams can compare credible options in one place instead of wading through marketing pages one vendor at a time. Every listing on this page links directly to the provider's official product site, and every description is written to explain what the platform actually does and who it is for.
How the market is structured
The IaaS landscape is not a single undifferentiated pool of "servers in the cloud." It splits into distinct segments that serve very different needs, and we organize the directory accordingly. The hyperscalers — Amazon Web Services, Microsoft Azure, and Google Cloud, joined by Oracle, IBM, and the Chinese giants Alibaba and Tencent — offer the broadest catalogues, the most regions, and the deepest ecosystems of adjacent managed services. They are the default choice when you need maximum breadth, global reach, and mature compliance, though their pricing and sheer surface area can overwhelm smaller teams. Budget and developer clouds such as DigitalOcean, Linode, Vultr, Hetzner, Contabo, Kamatera, and Civo strip the experience back to fast, predictably priced virtual machines with a clean console and an honest API — the sweet spot for startups, agencies, and side projects.
A growing European and sovereign cloud segment — OVHcloud, Scaleway, Exoscale, UpCloud, IONOS, and Leaseweb — competes on data residency, GDPR alignment, and freedom from US data-access legislation, which matters increasingly to regulated industries and public-sector buyers. Edge compute platforms like Cloudflare Workers, Fastly Compute, Fly.io, Akamai Connected Cloud, and Gcore push execution out to hundreds of points of presence so that code runs milliseconds from the user rather than in a distant central region. Bare-metal providers — Equinix Metal, Latitude.sh, phoenixNAP — deliver single-tenant physical servers with cloud-style automation for workloads that cannot tolerate the noisy-neighbour effect of shared virtualization. Finally, a wave of dedicated GPU clouds — Lambda, CoreWeave, and Paperspace — has emerged to feed the enormous demand for AI training and inference capacity that the general-purpose clouds alone cannot satisfy at competitive prices.
How to choose the right provider
Start with the workload, not the brand. If you are running Windows Server estates with Active Directory, Azure's hybrid tooling and license reuse will likely save you money; if your stack is data-and-analytics heavy, Google Compute Engine's per-second billing and BigQuery integration are compelling; if you simply want a reliable Linux box for a web app, a budget cloud will be cheaper and far simpler. Weigh four practical factors: total cost (including the egress and data-transfer fees that quietly dominate hyperscaler bills), geographic coverage relative to where your users actually are, compliance and data residency obligations, and the breadth of managed services you want the provider to handle for you versus operate yourself. A common and sensible pattern is to mix providers — core workloads on a hyperscaler, batch GPU jobs on a specialist GPU cloud, and edge logic on a CDN-based compute platform.
Every entry below carries a fifty-word-plus editorial description with real, verifiable facts about the provider's heritage, footprint, and ideal use case, plus category and tag filters and a search box so you can narrow the field in seconds. IaaSDirectory is free to use, requires no account, and links only to genuine, operating infrastructure companies. Use the category buttons to jump straight to the segment that fits your project, or search by name, region, or capability to build a shortlist worth evaluating in depth.
Hyperscaler
Alibaba Cloud ECS — dominant cloud provider in Asia-Pacific with global expansion for international workloads.
Alibaba Cloud is the largest public cloud in China and a top-tier provider across Asia-Pacific. Its Elastic Compute Service (ECS) offers a wide range of instance families — general purpose, compute optimized, memory optimized, and GPU — billed pay-as-you-go or via subscription. With data centers spanning mainland China, Hong Kong, Singapore, Japan, the US, and Europe, ECS is the natural choice for organizations serving Chinese and Southeast Asian users, where domestic regulation and the Great Firewall make Western hyperscalers impractical. It integrates tightly with Alibaba's networking, object storage (OSS), and database services.
Hyperscaler
alibaba asia-pacific global enterprise
Amazon EC2 — the original and largest cloud compute service, with hundreds of instance types across all regions.
Amazon Elastic Compute Cloud (EC2) launched in 2006 and effectively created the modern IaaS market. It offers the broadest selection of instance types of any provider — including Graviton ARM processors, Intel and AMD x86, GPU and FPGA accelerators, and bare-metal options — across more than 30 global regions. Pricing spans on-demand, reserved instances, Savings Plans, and deeply discounted Spot capacity. EC2 underpins the wider AWS ecosystem of over 200 services, making it the default platform for enterprises that need maximum breadth, mature tooling, and the deepest third-party integration support in the industry.
Hyperscaler
aws virtual-machines leader global
Google Cloud's IaaS — flexible VM instances with per-second billing and deep GCP network integration.
Google Compute Engine is the IaaS layer of Google Cloud Platform, running virtual machines on the same global fiber network that powers Search and YouTube. It is known for per-second billing, automatic sustained-use discounts, custom machine types that let you specify exact vCPU and memory counts, and live migration that keeps instances running during host maintenance. Spot VMs offer steep discounts for fault-tolerant workloads. With strong Kubernetes heritage through GKE, leading data and analytics services like BigQuery, and AI accelerators including TPUs, Compute Engine appeals to data-intensive and machine-learning workloads.
Hyperscaler
gcp virtual-machines global spot
IBM Cloud virtual servers and bare metal — enterprise-focused IaaS with Power hardware and mainframe integration.
IBM Cloud targets regulated enterprises and large organizations with demanding compliance, security, and legacy-integration requirements. Beyond standard x86 virtual servers, it is one of the few clouds offering IBM Power Systems (for AIX and IBM i workloads) and direct access to IBM Z mainframe capabilities, making it a strategic destination for customers modernizing decades-old core systems. IBM Cloud emphasizes confidential computing, FIPS-validated hardware security modules, and industry-specific clouds for financial services. With Red Hat OpenShift deeply integrated following IBM's acquisition, it is positioned as a hybrid and regulated-workload platform rather than a low-cost commodity provider.
Hyperscaler
ibm enterprise baremetal virtual
Azure virtual machines — broad Windows and Linux instance catalog with enterprise hybrid cloud features.
Azure Virtual Machines is Microsoft's IaaS offering and the cloud of choice for enterprises already invested in Windows Server, SQL Server, and Active Directory. It provides one of the largest data-center footprints in the world and deep hybrid capabilities through Azure Arc and Azure Stack, letting organizations extend a consistent control plane to on-premises and edge locations. Azure Hybrid Benefit lets customers reuse existing Windows and SQL licenses to cut costs significantly. With first-class identity integration via Entra ID and tight Microsoft 365 alignment, Azure is the pragmatic pick for Microsoft-centric IT estates.
Hyperscaler
azure virtual-machines windows hybrid
Oracle Cloud Infrastructure — aggressive pricing, strong database integration, and a generous always-free compute tier.
Oracle Cloud Infrastructure (OCI) is Oracle's second-generation cloud, rebuilt to compete directly with the larger hyperscalers on price and network performance. It is best known for an unusually generous Always Free tier that includes ARM-based Ampere A1 compute (up to four cores and 24 GB of RAM at no cost), plus flat, predictable egress pricing that undercuts competitors. OCI is the obvious home for Oracle Database and Exadata workloads, offers autonomous database services, and provides bare-metal and GPU instances. It suits enterprises consolidating Oracle licensing alongside general-purpose compute.
Hyperscaler
oracle enterprise database free-tier
European Cloud
Swiss cloud infrastructure — GDPR-compliant compute, object storage, and databases for European businesses.
Exoscale is a Swiss cloud provider focused squarely on European data residency and regulatory compliance. It runs data centers in Switzerland, Austria, Germany, and Bulgaria, keeping all data and operations within Europe under GDPR and Swiss data-protection law. The platform offers scalable compute instances, GPU instances, S3-compatible object storage, managed databases, managed Kubernetes (SKS), and DNS, all driven by a straightforward API and console with flat, transparent pricing. Exoscale appeals to European enterprises, public-sector bodies, and privacy-sensitive companies that need a sovereign, jurisdiction-clear alternative to hyperscalers, with no exposure to non-EU data-access legislation.
European Cloud
european swiss gdpr compliant
German cloud provider known for outstanding price-to-performance — popular with developers and startups for budget compute.
Hetzner is a German hosting company widely regarded as offering the best price-to-performance ratio in the industry. Its cloud product delivers fast AMD and Intel virtual servers, plus ARM64 Ampere instances, with generous traffic allowances and flat hourly pricing, while its long-established dedicated-server auction lets customers rent powerful bare-metal hardware at a fraction of hyperscaler rates. Data centers in Germany, Finland, and the United States combine with EU data-protection compliance to make Hetzner a default choice for European developers, startups, and self-hosters. The trade-off is a lean managed-service catalog, but for raw compute value it is exceptional.
European Cloud
european german budget value
European cloud with bare metal and public cloud — GDPR-native, French data centers, competitive pricing.
OVHcloud is Europe's largest cloud and hosting provider, a French company operating its own data centers and manufacturing its own servers to control costs and supply chains. It spans the full infrastructure spectrum: public cloud instances built on OpenStack, an extensive dedicated bare-metal range, private cloud powered by VMware, and managed Kubernetes. As a European-headquartered firm, it markets data sovereignty and GDPR compliance heavily, appealing to organizations wary of US CLOUD Act exposure. With aggressive pricing, unmetered or generous bandwidth on many products, and a global network of data centers, OVHcloud is a leading sovereign alternative to the American hyperscalers.
European Cloud
european french gdpr bare-metal
French cloud provider with Arm instances and GPU compute — developer-friendly with European data sovereignty.
Scaleway is a French cloud provider, part of the Iliad group, that combines a strong developer experience with European data sovereignty. It offers a modern range of compute including cost-efficient Development and Production instances, ARM-based options, and GPU instances for AI training and inference, alongside serverless functions, managed Kubernetes (Kapsule), and object storage. Scaleway operates data centers in France, the Netherlands, and Poland and emphasizes environmental responsibility, running one of Europe's more energy-efficient facilities. Its clean console, capable API, and transparent pricing make it a favored sovereign cloud for European startups and AI builders who want an alternative to US providers.
European Cloud
european french developer gpu
Budget Cloud
Developer-friendly cloud with simple pricing — Droplets, managed databases, Kubernetes, and object storage.
DigitalOcean built its reputation on radical simplicity: flat, predictable pricing, clear documentation, and a clean control panel that gets developers from signup to a running Linux server (a Droplet) in under a minute. Beyond basic compute it now offers managed Kubernetes (DOKS), managed PostgreSQL, MySQL, Redis and MongoDB, Spaces object storage, load balancers, and the App Platform PaaS. It is a favorite among startups, indie developers, agencies, and small teams who want capable cloud infrastructure without the sprawling service catalogs and opaque billing of the hyperscalers. An extensive library of community tutorials reinforces its developer-first identity.
Budget Cloud
developer simple affordable droplets
Akamai's cloud compute (formerly Linode) — straightforward Linux cloud hosting popular with developers and agencies.
Linode, founded in 2003 and acquired by Akamai in 2022, is one of the longest-running independent cloud providers and now forms the core of Akamai Connected Cloud. It offers straightforward, value-priced Linux virtual machines, dedicated-CPU plans, managed Kubernetes (LKE), block and object storage, and GPU instances. The Akamai acquisition pairs Linode's developer-friendly compute with one of the world's largest edge and CDN networks, enabling distributed deployments closer to end users. With transparent pricing, predictable bandwidth allowances, and a long track record of reliability, it remains a strong pick for developers and agencies seeking simplicity at a fair price.
Budget Cloud
affordable developer akamai simple
Developer-focused cloud with 32 locations — compute, bare metal, block storage, and Kubernetes at competitive rates.
Vultr is an independent, self-funded cloud provider operating data centers in more than 30 locations worldwide — one of the widest geographic footprints among the budget-tier players. It offers high-frequency and high-performance cloud compute, dedicated bare-metal servers, block and object storage, managed Kubernetes, and a growing fleet of cloud GPU instances for AI and rendering workloads. Hourly billing, a clean API, one-click application deployments, and competitive flat rates make it popular with developers, gaming companies, and businesses needing presence in regions the hyperscalers underserve. Its breadth of locations is a key differentiator for latency-sensitive global deployments.
Budget Cloud
affordable developer bare-metal global
Edge Compute
Serverless JavaScript and WASM runtime at Cloudflare's global edge — 300+ locations, near-zero cold starts.
Cloudflare Workers runs serverless code on Cloudflare's global network of data centers in over 300 cities, executing requests in the location nearest each user. Built on the V8 isolate model rather than containers, Workers achieve near-zero cold starts and scale instantly to handle massive traffic. The platform supports JavaScript, TypeScript, and WebAssembly, and pairs with a rich ecosystem — KV and D1 for storage, R2 for object storage with no egress fees, Durable Objects for coordination, and Queues. A generous free tier and per-request pricing make it a leading choice for low-latency APIs, edge logic, and globally distributed applications.
Edge Compute
edge serverless js global-network
WebAssembly edge compute from Fastly's CDN — run custom logic at the network edge close to users.
Fly.io lets developers deploy standard Docker containers as fast-booting Firecracker microVMs on physical hardware in more than 35 regions worldwide, automatically running applications close to the users requesting them. Its model bridges the gap between traditional cloud VMs and edge functions: full Linux VMs with persistent volumes, private networking, and the ability to scale to zero, yet distributed globally with anycast routing. The platform is popular for full-stack web apps, Postgres clusters, and increasingly GPU-backed AI inference. A command-line-driven workflow and per-second billing appeal to developers who want global distribution without managing Kubernetes or wiring up a multi-region cloud architecture by hand.
Edge Compute
edge wasm cdn low-latency
Run Docker containers close to users anywhere in the world — Firecracker microVMs on bare metal in 35+ regions.
Edge Compute
edge containers global developer