What Is IT Outsourcing? Pros, Cons and Common Models

Many growing businesses reach a point where IT becomes hard to manage internally. Systems grow and security risks rise. New tools appear faster than teams can learn them.

This is where IT outsourcing becomes a practical option.

Understanding what externally managed IT services are helps clarify why companies use them. It also helps you decide when they are the right fit for your business.

What Is IT Outsourcing?

A Simple Definition of IT Outsourcing

IT outsourcing means using an external provider to manage some or all of your IT services. Instead of hiring and maintaining a full internal team, you rely on specialists who deliver support, systems and advice.

Many business leaders ask how externally delivered IT services differ from in-house roles. The key difference is flexibility. This model adapts to your needs without the long-term cost and risk of hiring.

What IT Outsourcing Typically Includes

Outsourced IT can cover a wide range of services, including:

Why Businesses Outsource IT

Technology Is More Complex Than It Used to Be

Modern IT is no longer just about fixing computers. Businesses must manage cyber security threats, cloud systems, compliance and automation. Without a clear IT strategy, technology can slow growth rather than support it.

Access to Skills You Can’t Just “Hire in One Person”

Flexibility to Scale Support Up or Down

As business needs change, outsourced IT allows you to scale support as your business grows, restructures, or adopts new systems. You avoid over-resourcing during quiet periods and under-resourcing during busy ones.

Finding one employee who can cover support, networking, security, and strategy well is rare. Even capable internal teams often require specialist support in areas such as cyber security, cloud platforms and infrastructure design.

An external service model provides access to a broader range of skills without the need to hire multiple employees. It also removes the burden of recruitment, training, and ongoing people management. Businesses avoid the risk of hiring the wrong skills, managing performance issues, or ensuring technical staff remain current as technology evolves. 

While externally managed services may involve a modest premium compared to a single internal role, this is often offset by access to mature platforms, automation and economies of scale.

Capabilities such as service desk tools, monitoring systems, cyber security training and automated processes would otherwise be costly and time-consuming to implement in-house.

Common IT Outsourcing Model

Fully Outsourced IT Support

In this model, an external provider manages all IT services. This typically includes user support, network management, cyber security, cloud platforms, system monitoring and vendor coordination. It suits businesses without internal IT staff or those wanting predictable costs and consistent coverage.

Co-Managed IT (Internal Team + External Partner)

Co-managed IT blends internal knowledge with external expertise. Your internal team handles day-to-day needs, while an outsourcing partner supports strategy, security and complex systems.

Project-Based Outsourcing (Cyber, Cloud, Migrations, Automation)

Some businesses engage external specialists for specific projects only. Common examples include cyber security initiatives, cloud migrations, network upgrades and automation work.

Pros and Cons of IT Outsourcing

Key Benefits: Cost Control, Tools and Consistency

Benefits of IT outsourcing include:

 

Key Downsides: Knowledge Gaps and Security Risk

Outsourcing also has challenges:

How to Reduce the Risks With the Right Setup

 

Clear documentation, strong security standards, and well-defined responsibilities help reduce risk across systems and teams. The right provider operates as a strategic partner. They take a proactive approach to service delivery rather than reacting to individual support tickets.

IT Outsourcing vs In-House IT: How to Decide

When In-House Makes Sense

In-house IT works well when systems are stable, budgets are sufficient and specialist skills can be retained over time. It is also suited to organisations with highly specific internal processes. These include proprietary software, regulated operational workflows, or tightly integrated internal platforms that require close, day-to-day oversight.

When Outsourcing Is the Better Fit

Externally managed IT services work best when organisations need broad technical expertise, predictable costs, and operational resilience. This approach suits many small to mid-sized businesses that require access to support, security and strategic capability. Without the overhead of building and maintaining a full internal team.

The Practical Middle Ground for Many Businesses

Many organisations choose a hybrid model that combines internal knowledge with external expertise. Internal teams retain ownership of core systems and business context, while specialist partners support areas such as security, infrastructure and technology strategy. This approach provides flexibility and depth without placing unnecessary strain on internal resources.

What to Look For in an IT Outsourcing Partner

Proactive Support, Clear SLAs and No Ticket Barriers

Look for providers that focus on preventing issues, not just responding when problems arise. Clear service level agreements set expectations around response times and accountability. Easy access to support allows teams to resolve issues quickly without unnecessary disruption.

Security Standards, Processes and Accountability

Your provider should treat security as a core service, not an add-on. This includes continuous monitoring, staff training and clear accountability for managing risk. Security controls should also align with your business size, industry and compliance obligations.

Strategic Advice That Supports Business Goals

Good IT outsourcing aligns technology with business plans. This strategy ensures technology investments support growth, efficiency and long-term resilience rather than short-term fixes.

Final Takeaway

Outsourcing Works Best When it’s a Partnership, Not a Transaction

IT outsourcing is not about handing off responsibility, but gaining the right expertise, tools and flexibility to support growth. When done well, it strengthens your business rather than complicating it.

Explore how Lanter can support your business.

Frequently Asked Questions

What is IT outsourcing?
IT outsourcing is when a business uses an external provider to manage some or all of its IT services instead of relying fully on an internal team.

What services are included in IT outsourcing?It can include IT support, network monitoring, cyber security, cloud management, backups, updates, and IT strategy advice.

Is outsourced IT cheaper than in-house IT?Often, yes, especially for small and mid-sized businesses. Outsourcing can reduce hiring costs and provides access to multiple specialists and tools.

What are the risks of IT outsourcing?Risks include less internal familiarity, communication gaps, and security concerns if the provider has weak processes. Clear agreements and strong security reduce these risks.

What is the difference between outsourced IT and co-managed IT?Outsourced IT means the provider handles everything. Co-managed IT combines an internal IT team with an external partner for extra support and expertise.

When should a business outsource IT?
Outsourcing makes sense when IT demands grow, security risks increase, or the business needs reliable support without building a full internal team.

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