How to Evaluate IT Outsourcing Companies for Your Business

Which IT outsourcing companies should you put on your shortlist? It depends on the work you want to outsource and whether you need additional support, such as lead generation services, to build your sales pipeline.

Here’s a quick match:

• Big, company-wide change: Accenture or Cognizant
• Keeping critical systems running: DXC Technology or Kyndryl
• Building complex software products: EPAM or
• Teams in nearby time zones (nearshore): BairesDev
• Mid-sized companies that want one partner for many needs: ScienceSoft

The right IT outsourcing provider is the one that fits your project, your security needs, and your budget. So, the biggest name isn’t always the best fit.

This guide is for the people who make the final call: CIOs, CTOs, CFOs, and COOs. You’ll get a shortlist, a clear way to vet providers, and a simple way to work out the return on your investment.

Disclosure: Callbox publishes this guide. We help B2B companies find new customers. We are not an IT outsourcing provider, we are not on this list, and no company paid to be included.

Which IT outsourcing companies should be on your shortlist?

Below are eight IT outsourcing companies, grouped by the type of buyer they serve best. Start with the “Best For” column. A provider that’s great for a Fortune 500 company can be the wrong choice for a 300-person firm.

Company	HQ	Best For	Core Strength	Global Reach
Accenture	Dublin, Ireland	Large enterprises changing how they run IT	Strategy, technology, and managed services at huge scale	Clients in more than 120 countries
Cognizant	Teaneck, NJ, USA	Regulated industries like health care and finance	Updating old systems and running IT with help from AI	Large delivery teams, mainly in India
DXC Technology	Ashburn, VA, USA	Enterprises that depend on older, critical systems	Running and updating complex systems without disruption	Enterprise clients worldwide
Kyndryl	New York, NY, USA	Large companies outsourcing IT infrastructure	Managing data centers, networks, and cloud	Clients worldwide; spun off from IBM in 2021
EPAM Systems	Newtown, PA, USA	Companies building complex software platforms	Strong engineering, with AI built into its work	Operations in 55+ countries
BairesDev	San Francisco, CA, USA	US companies that want teams in similar time zones	Adding engineers or full teams from Latin America	4,000+ engineers, mostly in Latin America
ScienceSoft	McKinney, TX, USA	Mid-sized firms that want one partner for many IT needs	Services from IT support to custom software	35+ years serving clients in many countries

Accenture

Accenture is the usual pick when the work covers the whole company. It can handle strategy, cloud moves, and day-to-day IT under one contract.

Expect high prices and a lot of process. In return, you get scale few others can match.

Cognizant

Cognizant has a strong US presence and large teams overseas.

It’s a common choice in regulated industries, where knowing the rules matters as much as technical skill.

DXC Technology

DXC works on systems many providers avoid, like mainframes and core banking software.

It suits buyers who need to keep old systems stable while they slowly update them.

Kyndryl

Kyndryl was spun off from IBM’s infrastructure business in 2021. It runs the backbone of IT: data centers, networks, cloud, and backup systems.

Choose it when your main need is running infrastructure, not building software.

EPAM Systems

EPAM started as a software engineering company, and that is still its strength.

It’s best when you need to build new digital platforms, not just maintain old ones.

BairesDev

BairesDev was founded in 2009 and is based in San Francisco. Its engineers work mostly from Latin America.

For US companies, the main benefit is shared working hours at lower rates than US-based teams.

ScienceSoft

ScienceSoft has been in business since 1989 and is based in McKinney, Texas. It offers IT support, cybersecurity, and custom software.

Mid-sized buyers like having one partner cover many needs. Ask any provider on your list how much senior attention an account your size will get.

Related: Leading IT Lead Generation Companies in California

What should you expect from IT outsourcing in 2026?

Companies are outsourcing more, not less. Deloitte surveyed more than 500 executives for its 2024 Global Outsourcing Survey and found:

• 80% plan to keep or grow their spending on outsourcing.
• 83% already use AI in the services they outsource.

The main question has changed. Buyers used to ask, “Who is cheapest per hour?” Now they ask, “Who can deliver results, with automation built in?”

How buyers find providers has changed too. HubSpot’s 2026 State of Marketing report finds that buyers now start their research in AI search summaries. They visit vendor websites later.

That means your shortlist may form before you talk to a single salesperson. A clear evaluation process matters more than ever.

Industry Insight: Most outsourcing deals don't fail because the provider lacks skill. They fail because the scope was unclear and no one managed the relationship.

Often, the provider did exactly what the contract said. The contract just described the wrong work. Before you compare vendors, write down three things: the results you want, who on your team owns the relationship, and how you’ll measure success every quarter.

How did we choose these IT outsourcing companies?

Each provider had to meet five criteria:

• Clear focus. A known specialty, not “we do everything.”
• Proven delivery. Set processes for handover, service levels, and reporting.
• Security. Public signs of security certifications. Still ask for current proof for your project.
• Public facts. Information we could check on headquarters, services, and client work.
• Buyer fit. A distinct use case, so the list covers large enterprises, infrastructure, engineering, nearshore teams, and mid-sized firms.

The list is grouped by use case. It is not a ranking.

Related: Outsourced Lead Generation Cost

How should you evaluate an IT outsourcing provider before you sign?

One person rarely makes this decision alone. HubSpot data shows the average sale involves five decision makers.

An IT outsourcing deal usually involves IT, finance, security, legal, and purchasing. Get them aligned early, then follow these steps:

1. Define the work and the model. Do you want a provider to run IT for you (managed services), add engineers to your team (staff augmentation), deliver a fixed project, or give you a dedicated team? Each option shares risk differently.
2. Pick where the team works. Onshore teams are easiest to work with. Nearshore teams cost less and share most of your working hours. Offshore teams cost the least and can cover IT around the clock.
3. Check security proof, not promises. Ask for recent audit reports, such as SOC 2 Type II or ISO 27001. If health data is involved, US law requires a Business Associate Agreement (BAA).
4. Confirm you own the work. The contract should state that all code and work products belong to you.
5. Set service levels around results. Service level agreements (SLAs) should measure uptime, fix times, and deadlines, not just hours worked.
6. Plan how you’ll manage the provider. Deloitte found 70% of executives say their vendor management team isn’t fully mature. Name one person to own the relationship, and schedule reviews every quarter.
7. Plan your exit on day one. Require documentation and handover support, so you can switch providers if you need to.
8. Start with a pilot. A small 60 to 90 day project shows how a provider communicates and delivers. It tells you more than any reference call.

Expert Tip: Ask each finalist to describe a project that went wrong and what they changed afterward.

Strong providers give specific, honest answers. Vague answers now often mean vague answers later, when something breaks.

Should you outsource all of IT or keep some in-house?

Few companies outsource everything anymore. Deloitte found that 78% of organizations also run their own in-house centers alongside outside partners.

A mix that works well:

• Keep in-house: system design, security decisions, and managing your providers
• Outsource: the day-to-day work, especially where a provider has scale or skills you can’t hire quickly

Expert Tip: Keep at least one senior tech leader on your team who knows the systems you're outsourcing. You can outsource the work. You shouldn't outsource the judgment.