What Is Colocation? Colocation Data Centers, Types & Benefits

TL;DR

• Colocation (colo) is a data center service where businesses rent rack, cabinet, or cage space in a third-party facility for servers they own, while the provider supplies power, cooling, connectivity, and physical security.
• The main difference between colocation and cloud is ownership, since colocation keeps hardware, configurations, and data location under your control, while cloud rents provider-owned resources that scale on demand.
• Retail colocation suits small and mid-sized deployments leased by the rack or cage, while wholesale, managed, and edge colocation serve larger footprints, smaller IT teams, and latency-sensitive workloads.
• Total colocation cost depends on more than rack space, because power draw, bandwidth, cross-connects, remote hands, overage fees, and contract terms such as renewal escalators all shape long-term value.

If your business depends on consistent uptime and data security, where you house your IT infrastructure matters. Many organizations are finding that colocation, often referred to as “colo,” offers the performance and protection they need without the cost and complexity of having to build and operate their own data centers.

But what is colocation, exactly? And how does it compare to keeping servers in-house or moving entirely to the cloud? In this guide, we’ll explain what colocation is and what to look for when choosing a colocation facility.

Colocation Meaning: What Is A Colo?

Colocation, often shortened to “colo,” is a data center service where businesses rent space to house their own servers, storage, and networking equipment in a third-party facility. The provider delivers the infrastructure, including power, cooling, physical security, and connectivity, while the client supplies the hardware and software.

You’ll often see the terms colocation data center and data center colocation used interchangeably. Strictly speaking, the data center is the building, and colocation is the service of renting space inside it.

It’s increasingly popular, and current projections show global demand for data center capacity is expected to more than triple by 2030.¹

With colocation, you own and manage your equipment, but the colocation facility provides:

• Space: Rack, cabinet, or cage space for your hardware
• Power: Redundant, high-capacity electrical connections
• Cooling: Industrial-grade climate control to maintain optimal operating conditions
• Connectivity: High-speed, carrier-neutral internet connections
• Security: Physical and digital safeguards to protect your assets

Think of it as housing your servers in someone else’s highly secure, always-on building, while still maintaining full control over your IT infrastructure.

How Data Center Colocation Works

Colocation gives your business access to a professional data center environment while allowing you to keep ownership and control of your hardware. Instead of building and operating your own facility, you place your servers and networking equipment in a third-party data center that provides the space, power, cooling, security, and connectivity needed to keep everything running reliably.

Space Leasing

In a colocation setup, you lease physical space inside a colo data center based on your infrastructure needs. This may be a single rack unit, a full cabinet, a private cage, or even a dedicated room for larger deployments.

The amount of space you choose usually depends on how much equipment you need to house today, along with how much room you may need as your environment grows.

Infrastructure Support

The colocation facility provides the core infrastructure required to support uptime and reliable operations. This typically includes redundant power, backup generators, precision cooling systems, fire detection and suppression, and layered physical security controls.

These are the same types of systems that are expensive and complex to build in-house, which is why colocation can be a practical option for organizations that need enterprise-grade reliability without operating a private data center.

Connectivity & Cross-Connects

Colocation providers also deliver the network foundation your infrastructure depends on. This often includes bandwidth options, access to multiple carriers in carrier-neutral facilities, and interconnection services such as cross-connects, which are direct physical links between your equipment and a carrier, cloud provider, or other tenant in the same building.

Depending on the provider, you may also be able to connect directly to cloud platforms, telecom providers, or other partners inside the same facility, which can improve performance and support hybrid IT strategies.

Client Hardware Management

With colocation, your organization owns and manages the servers, storage, switches, and software deployed in the facility. That means you retain control over your hardware configurations, operating systems, applications, and security policies.

In other words, the provider manages the building and shared infrastructure, while your team manages the IT environment running inside your colocation footprint.

What Is A Colocation Data Center?

A colocation data center, also called a colocation facility, is a professionally managed building designed to store IT equipment for multiple tenants. Because you’re sharing the building and resources with other companies, you gain access to enterprise-grade infrastructure at a fraction of the cost of building your own data center.

That shared model is what lets businesses run their own hardware in an environment that’s more resilient and better protected than most on-premise server rooms, without carrying the full cost of the facility themselves.

What Is A Colocation Server?

A colocation server is simply your physical server hosted in a colocation facility. You purchase, configure, and maintain the hardware, but instead of hosting it on-site, you place it in a colo facility. Many businesses colocate multiple servers to create high-availability clusters, disaster recovery systems, or hybrid cloud environments.

Types Of Colocation: Retail, Wholesale, Managed & Edge

Colocation types differ mainly in how much space you lease and how much of the day-to-day work the provider takes on. The right fit depends on the size of your footprint, your power needs, and how hands-on your team wants to be.

Retail Colocation

Retail colocation is the most common option for small and mid-sized deployments. You lease space by the rack unit, the cabinet, or a private cage inside a shared facility, and the provider handles power, cooling, and connectivity. Contracts are smaller and more flexible, which makes retail colocation a natural first step for businesses moving servers out of an office server room.

Wholesale Colocation

Wholesale colocation is built for large footprints. Instead of individual racks, you lease an entire data hall, a dedicated suite, or a large block of power capacity. The cost per unit of power is usually lower than retail, but contracts run longer and your team takes on more of the build-out and management of the space.

Managed Colocation

Managed colocation adds operational support on top of the space itself. Depending on the provider, that can include hardware monitoring, patching, backups, or network management, while you keep ownership of the equipment. It suits smaller IT teams that want the control of owning hardware without staffing every task in-house.

Edge Colocation

Edge colocation places smaller deployments in facilities located close to end users or connected devices. Shorter distances mean lower latency, which matters for IoT networks, video streaming, retail locations, and real-time analytics. Many businesses pair edge sites with a larger central colocation footprint.

6 Benefits Of Colocation Over In-House Hosting

A colocation server deployment offers several advantages over in-house hosting. The main benefits of colocation include:

1. Lower Infrastructure Costs

Rather than spending millions to build your own data center, colocation services let you pay a predictable monthly fee for space, power, and connectivity. This makes it easier to budget for IT expenses while using high-end infrastructure, which can free up capital for other strategic initiatives.

2. Better Connectivity Options

Because a carrier-neutral facility puts multiple ISPs, cloud providers, and network exchange points under one roof, you can switch or add carriers without physically moving equipment or reconfiguring your network from scratch. That makes it easier to add redundancy or move to a better-performing carrier as your needs change.

3. Enhanced Reliability

Downtime is expensive, both in lost productivity and potential revenue. Colocation providers design their facilities with redundant power and network connections, along with failover systems, to minimize outages. Plus, many offer uptime SLAs of 99.99% or higher, a level of reliability that’s difficult to achieve in most in-house environments.

4. Stronger Security

Colocation security is built in layers that most in-house server rooms can’t match. That reduces risks like unauthorized access, theft, or tampering with your housed equipment, without your team having to fund or staff those controls.

5. Seamless Scalability

Scaling an on-prem data center usually requires expensive infrastructure upgrades. Colocation lets you expand your IT footprint by adding racks or cabinets as you grow, so it’s easier to respond to new opportunities and demand spikes without any major disruptions.

6. Disaster Recovery & Business Continuity

Hosting servers off-site adds a layer of resilience in case your primary office is affected by an outage or other disruption. Many businesses include colocation facilities as part of a disaster recovery plan to make sure critical systems stay online even during emergencies.

What Drives Colocation Costs?

Colocation pricing will depend on the amount of rack space you need (measured in rack units, cabinets, or cages), the power draw of your equipment, your network bandwidth requirements, and the level of support and services included.

Typical pricing models include:

• Per-U pricing: Pay per rack unit of space
• Per-cabinet pricing: Flat rate for a full rack
• Custom cage pricing: For larger deployments with dedicated physical security

While costs can vary, many businesses find colocation more cost-effective than building and maintaining their own facilities. Still, the total cost depends on more than the monthly price of rack space, so it’s important to look beyond the base quote and evaluate the full contract.

Common Colocation Costs Beyond Rack Space

In addition to space fees, colocation costs may include power usage, bandwidth, cross-connects, remote hands support, installation fees, and after-hours service charges. Some providers also bill for overages if your power draw or bandwidth usage exceeds your committed amount.

These costs can vary significantly between providers, even when the quoted cabinet price looks similar.

Contract Terms That Can Affect Long-Term Cost

Before signing, review contract details such as term length, renewal pricing, annual escalators, expansion pricing, cancellation terms, and SLA credit policies. A low introductory rate may look attractive, but long-term pricing and operational terms often have a bigger impact on total value.

It is also worth clarifying access policies, response times for on-site support, and any restrictions that could affect maintenance or troubleshooting. When comparing colocation providers, focus on total cost, operational fit, and contract clarity, not just the headline number.

Colocation vs Cloud: Key Differences & How They Work Together

The main difference in colocation vs cloud is ownership. With colocation, you rent space, power, and connectivity for hardware you own. With cloud, you rent computing resources that the provider owns and manages, and you never touch the physical servers.

In cloud computing terms, colocation sits between running your own data center and moving everything to public cloud infrastructure. You keep the control that comes with owning your hardware, but hand off the facility itself.

Beyond ownership, the two models also differ in control, scaling, cost, and security:

• Colocation gives you full control over hardware, configurations, and physical location, while cloud gives you control over your applications and data within the provider’s platform.
• Colocation scales by adding racks, cabinets, or power, usually over days or weeks, while cloud resources can be added or removed in minutes, on demand.
• Colocation costs combine hardware purchases with a predictable monthly fee for space and power, while cloud uses usage-based billing that rises with consumption and data transfer.

In colocation, the provider secures the facility and you secure your systems, while in cloud, the provider secures the infrastructure and you secure your data and access.

When Colocation Makes More Sense

Colocation tends to win when workloads are steady and predictable. If an application or database runs at high utilization around the clock, owning the hardware and paying a fixed monthly fee for space and power often costs less over a typical hardware lifecycle than paying for the same capacity on demand. It also suits organizations that need to know exactly where their data physically lives, or that run specialized hardware a cloud platform doesn’t offer.

When Cloud Makes More Sense

Cloud is the stronger choice when demand swings, when you need capacity quickly, or when you’d rather not manage hardware refreshes at all. Development and test environments, seasonal traffic spikes, and new applications with uncertain demand are typical examples.

Using Colocation And Cloud Together

For many businesses, the answer isn’t one or the other. Colocation is often part of building a flexible, hybrid IT strategy.

A hybrid model may combine on-premise equipment for local workloads, public cloud services for scalability and agility, and colocation servers for mission-critical workloads that require maximum control. This approach lets you keep sensitive workloads on your own hardware while still taking advantage of the speed, security, and uptime that a colocation facility offers.

What To Look For In A Colocation Facility

Not all colocation facilities are created equal. When evaluating data center providers, consider factors like:

Location

Choose a facility close enough for your team to access easily but far enough from your primary site to avoid shared risks from local outages or disasters.

Power, Connectivity & Security

These are the core of what you’re paying for, so confirm the details rather than assuming them. Ask whether the facility has redundant power feeds, backup generators, and industrial-grade cooling, how many carriers and high-speed network connections are available on-site, and which physical controls are in place, such as biometric or card-based access, 24/7 security personnel, CCTV monitoring, and mantraps.

Compliance & Certifications

If you must meet industry regulations like HIPAA, PCI DSS, or SOC 2, make sure the colocation facility meets or exceeds these standards.

Service Levels

Review the provider’s SLAs for uptime guarantees, response times, and on-site support availability, including whether support is available 24/7 and how emergency requests are handled.

What Remote Hands & Smart Hands Support Includes

On-site support can make a major difference in how quickly your team responds to issues, especially if your colocation facility is not near your office. Many colocation providers offer remote hands or smart hands services, which give you access to trained technicians on-site to perform physical tasks on your behalf.

What Remote Hands Support Typically Covers

Remote hands services often include basic tasks such as visual inspections, equipment reboots, cable checks, confirming indicator lights, and simple troubleshooting steps directed by your team. This type of support is especially helpful during off-hours incidents or when your internal staff cannot get to the facility quickly.

What Smart Hands Support May Include

Smart hands usually refers to more advanced on-site assistance, such as replacing components, patching cables, installing equipment, assisting with migrations, or performing work-order-based tasks under your direction.

Service scope and billing rates vary by provider, so it is important to confirm exactly what is included and what is billed separately. Strong on-site support can reduce downtime risk and make colocation easier to manage, especially for lean IT teams or multi-site organizations.

Is Colocation Right For Your Business?

Not sure if colocation is the right move for your organization? Colocation could be a good fit if:

• You’re running out of space or power in your current server room
• Your current hosting setup can’t meet your uptime or performance needs
• You want access to faster connectivity options
• You need to meet strict compliance or security requirements
• You’re planning a hybrid IT or disaster recovery strategy

Ultimately, colocation gives you the ability to control your company’s own equipment while leveraging the cost savings and expertise of a dedicated data center provider.

Colocation (Colo) FAQs

What Is Colo Used For?

Colo is used to host company-owned servers, storage, and networking equipment in a third-party data center that supplies power, cooling, bandwidth, and physical security. Common uses include running production applications and databases, hosting a secondary site for disaster recovery, connecting private infrastructure to public cloud platforms, and moving hardware out of an office server room that has run out of space or power.

What Are The Benefits Of Colocation?

The main benefits of colocation are higher uptime, lower infrastructure costs than building a private data center, scalable space and power, and access to multiple carriers in one facility. You also get stronger physical security than most office server rooms can offer, plus an off-site location that supports business continuity and disaster recovery planning.

What Are The Disadvantages Of Colocation?

The main disadvantages of colocation are upfront hardware costs, since you buy and refresh your own servers, and less immediate access than an on-site server room. Your team is still responsible for hardware failures and software management, and scaling means adding physical equipment rather than spinning up resources on demand. Long contract terms and extra fees for power, cross-connects, or remote hands can also raise the total cost.

Who Should Use Colocation Services?

Colocation is ideal for organizations that require full control of their hardware but want to avoid the expense and complexity of operating their own data center. Common users include enterprises, MSPs, and growing SaaS or eCommerce platforms. It’s also a common choice in regulated industries like healthcare and finance that need audited, certified facilities.

What Is The Difference Between Colocation And A Data Center?

A data center is the physical facility that houses servers, storage, and networking equipment. Colocation is a service offered inside a data center, where the provider rents space, power, cooling, and connectivity to multiple businesses that bring their own hardware. A company can also run a private data center, which means it owns and operates the building instead of renting space in someone else’s.

What Is Colocation In Cloud Computing?

In cloud computing, colocation refers to keeping your own servers in a third-party data center while connecting them to public cloud platforms. It’s the foundation of many hybrid cloud setups. You run steady or sensitive workloads on hardware you own and control, and use cloud resources for workloads that need to scale quickly. Many colocation facilities also offer direct cloud connections that bypass the public internet.

How Is Colocation Different From Managed Hosting?

With colocation, you own the servers and manage the hardware, operating systems, and applications, while the provider supplies the facility. With managed hosting, the provider owns the servers and handles setup, maintenance, and support for you. Colocation gives you more control over configurations and hardware choices, while managed hosting trades some of that control for less hands-on work from your team.

Is Colocation Secure?

Yes, colocation is generally more secure than an on-site server room, but security is shared. The provider protects the facility with controls like biometric access, 24/7 surveillance, on-site staff, and redundant power. Your team remains responsible for securing the systems themselves, including firewalls, patching, access policies, and data encryption. Checking a provider’s certifications, such as SOC 2, is a quick way to confirm its standards.

What Is A Cross-Connect In A Colocation Facility?

A cross-connect is a dedicated physical connection between your equipment and another provider or tenant inside the same data center, such as a carrier or cloud connectivity provider. It is commonly used to improve performance, reduce latency, and create more secure connections than public internet routing.

Can Colocation Support AI And High-Density Workloads?

Yes, but not every facility is designed for high-density deployments. GPU servers draw far more power per rack than standard servers, so many providers offer dedicated high-density colocation with enhanced air or liquid cooling. If you plan to run AI or HPC workloads, confirm the provider’s available power density, cooling capabilities, and expansion options before signing a contract.

Find The Best-Fit Colocation Facility With CommQuotes

Colocation needs aren’t the same for every business. For some, it’s about cutting costs. For others, it’s about boosting uptime, meeting compliance requirements, or building a hybrid IT environment. The right colocation provider should align with your unique goals and give your organization the infrastructure, connectivity, and security to support long-term success.

That’s where we come in.

At CommQuotes, we leverage our relationships with thousands of trusted data center and colocation partners to match you with providers that truly fit your needs. We’ll take the time to understand your goals, do the legwork, and present the best solutions at the guaranteed lowest prices, all at no cost to you.

Ready to explore your colocation options? Contact us today to get started!

Sources:

1. https://www.mckinsey.com/industries/technology-media-and-telecommunications/our-insights/ai-power-expanding-data-center-capacity-to-meet-growing-demand