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Computerease

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IT Support in Oak Brook, IL, Built to Corporate Standards

Local Service. Corporate-Grade Delivery.

Oak Brook is a small town with a very large corporate footprint, home to national headquarters and a dense corridor of Class A office space along I-88. Businesses here are used to seeing enterprise-level standards from their neighbors, and that shapes what they expect from an IT provider too. Computerease has supported businesses across DuPage County since 1984, bringing the polish of a national provider without losing the responsiveness of a local one.

Computerease provides managed IT support, cybersecurity, cloud, and phone systems for businesses in Oak Brook, Illinois, from its office at 2021 Midwest Road, Suite 200. Founded in 1984 and led today by Ryan Haislar, CISSP, the company supports law firms, financial services firms, medical and dental practices, and corporate back-office teams throughout DuPage County and the western suburbs.

Why IT Expectations Are Different in a Corporate Headquarters Town

When national and global companies set up shop nearby, the businesses around them tend to raise their own bar, whether that’s how their office looks, how their phone gets answered, or how confident they feel about their technology. Oak Brook has that dynamic in a way most suburbs don’t. A dense cluster of corporate campuses along the I-88 corridor means a lot of local businesses, from law firms to medical practices to financial advisors, are operating next door to national brands and holding themselves to a similar standard.

That’s the environment we built our Oak Brook service around. You get the same proactive monitoring, the same CISSP-led security, and the same responsiveness a larger company would expect, sized appropriately and priced fairly for a business that isn’t a Fortune 500 headquarters.

oak brook

What Oak Brook Businesses Get With Computerease

  • CISSP-Led Security: every security strategy is built and signed off by a Certified Information Systems Security Professional.
  • Second-Generation, Family-Owned: serving DuPage County since 1984, with no outside investment or private equity ownership.
  • Fast, Local Response: for critical, system-down issues, we aim to respond in 15 minutes or less.
  • One-Year Start, Then Month-to-Month: clients continue because the work holds up, not because a contract requires it.
  • Nationally Recognized: named to the Inc. 5000 and the CRN MSP 500.
OUR OAK BROOK STORY

Managed IT & Cybersecurity From a Family Business Rooted in Oak Brook

Ike Haislar started Computerease in 1984 to help businesses get more out of their technology without the runaround. Four decades later, that is still the job. Our office on Midwest Road keeps us close to the companies we support, from law firms and medical practices to corporate offices along the I-88 corridor.

Today, Ryan Haislar, CISSP, leads the company as the second generation. He treats every client relationship as something the family name stands behind. For Oak Brook owners, that means a team that learns how your business works and plans ahead with you as you grow. For regional offices with their own corporate IT team, it means a local partner who backs them up instead of taking over.

What usually happens is a business goes years with IT that only shows up when something breaks. Working with us looks different. The same people support your systems over time, so they remember how things are set up and why. Small problems get fixed before they turn into a bad week, and the repeat issues start to go away.

We also give straight answers. If an upgrade can wait a year, we’ll tell you. If something needs attention now, we’ll explain why in plain terms and what it will cost. You get the full picture, so you can make the right call for your business.

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“We plan every client’s technology like we’ll still be working together ten years from now. Across DuPage County, a lot of them already have been.”
Ryan Haislar, CISSP, President/CEO
Same Team. Same Relationship. Year After Year.
Since 1984TRUSTED FOR 40+ YEARS

Why Oak Brook Businesses Stay With Computerease

Over 40 Years Serving Businesses
Local Office on Midwest Road
Second-Generation Family Leadership
Cybersecurity Overseen by a CISSP
Coverage Across DuPage County and the Western Suburbs
Local Support for Regional and Corporate Offices
Practical AI Planning and Employee Training
ROOTED HERE
Four decades alongside western suburban businesses, with the same family still leading the way.

Managed IT Services in Oak Brook

A business next door to a national headquarters doesn’t have room for a break-fix IT relationship where you wait for something to fail before anyone looks at it. Our ConstantCare Managed IT Services program is built to catch issues while they’re still small.

  • Round-the-clock monitoring of your network, servers, and devices, whether your team is in the office park or working from home in Hinsdale.
  • Automated patch management that closes security gaps the moment they're identified.
  • Unlimited help desk support from technicians who answer the phone, not a ticket queue.
  • vCIO planning that treats your technology roadmap like the strategic decision it actually is.
  • A single point of contact for your internet provider, software vendors, and hardware suppliers.

Not Sure Where to Start? Let’s Talk IT

If you’re wondering whether your current IT setup is enough – or if there’s a smarter, more secure way to operate – let’s talk. We’ll guide you through your next step.
Schedule a 15 Minute Discovery Call

Business IT Support for Oak Brook | Local IT Support for Oak Brook Businesses

Managed IT Services

Total responsibility for your technology environment.

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Co-Managed IT Services

The force multiplier for your internal IT team.

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Cybersecurity

Advanced threat detection and 24/7 monitoring.

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AI for Business

AI strategy, training, and security for your business.

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Network Security

Layered defense for your business infrastructure.

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Cloud Computing

Scalable, secure, and accessible cloud infrastructure.

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Data Backup And Recovery

Business continuity and disaster recovery planning.

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IT Consulting & Implementation

Strategic guidance for digital transformation.

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VoIP & Communications

Crystal clear business communication systems.

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Managed Print Services

Optimized printing workflows and cost control.

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Cybersecurity for Oak Brook Businesses

A business address near major corporate headquarters can actually raise your risk profile, attackers know that smaller companies in these corridors often handle sensitive data for larger partners, and they target the smaller, less-defended link in that chain. Computerease builds security into every plan rather than selling it separately, using the Center for Internet Security (CIS) Critical Security Controls as the foundation.

What’s Included

  • Managed SIEM: continuous log monitoring across your network, servers, and cloud accounts.
  • Managed EDR: behavior-based endpoint protection that can isolate a device the moment something looks wrong.
  • Managed SOC: a 24/7/365 security team watching your environment, including nights and weekends.
  • Managed Firewall and Firewall as a Service: configuration, patching, and monitoring for your network’s perimeter.
  • Managed SASE and ZTNA: secure, modern remote access for hybrid teams.
  • Microsoft 365 Security Monitoring: alerts on suspicious sign-ins and mailbox forwarding rules.
  • Multi-Factor Authentication: deployed through tools like Duo Security to stop most automated attacks outright.
  • Penetration Testing: a controlled attempt to find your weaknesses before someone else does.

Our CISSP-led team has direct experience helping healthcare practices meet HIPAA requirements, financial and wealth management firms meet SEC and FINRA expectations, and businesses that serve larger corporate partners pass vendor security reviews.

Request a Free Cyber Risk Assessment

Practical AI Guidance

A lot of Oak Brook businesses are watching how larger neighbors adopt AI and wondering what’s actually relevant to a smaller operation. We help sort that out with AI Readiness Assessments, employee AI training, secure Microsoft Copilot deployment, and AI Acceptable Use Policies that set clear expectations for your team.

Co-Managed IT for Businesses With Internal IT Staff

Plenty of Oak Brook businesses, especially corporate back-office and regional operations teams, already have an internal IT person or small team. Our co-managed model reinforces that team rather than duplicating it, handling the heavier lifting: advanced cybersecurity, 24/7 monitoring, and complex projects.

  • Escalation coverage when your internal IT person is out or stretched thin.
  • Direct access to enterprise-grade monitoring and ticketing tools.
  • Senior engineering support for a migration, office relocation, or infrastructure overhaul.

Oak Brook’s concentration of corporate campuses means a lot of the businesses here aren’t headquartered locally at all, they’re regional or North American offices for companies based elsewhere in the country, or across Europe and beyond. Corporate IT typically sets the company-wide standards and manages the major infrastructure, but a local office still needs a partner on the ground for day-to-day support, onsite troubleshooting, employee onboarding, and equipment deployments. Computerease works alongside internal and international IT teams to provide that local layer of support while staying aligned with whatever standards headquarters has already set. Whether your headquarters is in London, Frankfurt, Toronto, or another U.S. city, our role is to be dependable local hands and eyes, working as an extension of the IT team you already have.

Technology Support for Office Moves, Expansions & Acquisitions

Oak Brook is home to many regional headquarters, satellite offices, and businesses that are continually growing through expansion or acquisition. Whether you’re opening a new location, relocating your office, or integrating technology after purchasing another company, those changes can quickly become overwhelming without the right IT partner.

Computerease helps businesses plan and execute technology transitions with minimal disruption. We coordinate network moves, migrate servers and Microsoft 365 environments, deploy new workstations, consolidate security policies, and work directly with internet providers and software vendors to keep projects moving on schedule. Our team also helps standardize technology across multiple locations so employees have a consistent experience regardless of where they work.

If your business is preparing for an office move, merger, acquisition, or major expansion, we’ll help build a technology plan that supports the transition instead of slowing it down.

Talk With Our Team About Your Next IT Project

IT consultant presenting tag cloud about information technology

Cloud Solutions for Oak Brook Businesses

We manage Microsoft 365 and Google Workspace environments on an ongoing basis, not just at setup, configuring secure data-sharing policies and confirming your cloud data is properly backed up. For businesses still running an on-premise server, we handle migration to Microsoft Azure or Amazon Web Services, cutting the need for costly hardware refreshes.

Phone Systems and Backup Built for a Hybrid Workforce

VoIP Phone Systems

Our cloud-based VoIP systems keep your team connected from a desk in the office park, a home office in Downers Grove, or on the road. Same number, same features, wherever they log in.

Backup and Disaster Recovery

  • Automated backups as frequent as every hour, to keep the window of data loss as small as possible.
  • Encrypted, off-site replication so a local outage doesn’t compromise your data too.
  • Rapid virtualization that can bring a failed server back online within minutes.
  • Regular recovery testing, so we already know a backup works before you’re relying on it.

Need IT Help?

Tell us what’s going on with your IT. No hard sales, no pressure—just helpful guidance from our team.
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INDUSTRY EXPERTISE

Industries We Support

Healthcare and Dental Practices

Healthcare and Dental Practices

From solo practitioners to multi-provider practices, we keep patient data secure, systems HIPAA-aligned, and EHR and practice management software running without interruption.
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Financial Services and Wealth Management

Financial Services and Wealth Management

Trust is the product in this industry. We help financial advisors and wealth management firms protect client data and meet SEC and FINRA expectations with security built for regulated information.
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Manufacturing and Distribution

Manufacturing and Distribution

We support ERP systems, inventory platforms, and disaster recovery planning for manufacturers and distributors throughout the western suburbs.
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Engineering & Construction IT Support

Engineering & Construction IT Support

We advise on technology for both AutoCAD workstations in the office and rugged laptops in the field, backed by nearly 40 years supporting firms in this industry.
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IT Support for Oak Brook Law Firms

IT Support for Oak Brook Law Firms

We support case management software, document management systems, and secure remote access for Oak Brook-area law firms, with attention to the confidentiality standards the profession requires.
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Small & Medium Business IT Support

Small & Medium Business IT Support

A responsive, reliable IT partner can end a cycle of recurring problems for a growing Oak Brook business. We support your business with all of your technology needs, backed by our 100% money-back guarantee.
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Areas We Serve in DuPage County

Our Oak Brook office supports businesses throughout DuPage County and the surrounding western suburbs, with both remote and onsite support available. Service area spans DuPage County and reaches into western Cook County.

Oak Brook & Nearby Suburbs

  • Oak Brook and Oakbrook Terrace: the corporate office corridor along I-88.
  • Hinsdale and Clarendon Hills: professional services and executive offices.
  • Elmhurst and Villa Park: established commercial districts along Route 83.

Greater DuPage County

  • Downers Grove and Westmont: growing business corridors near I-355.
  • Lombard and Addison: retail, healthcare, and light industrial businesses.
  • Also serving: Willowbrook, Elk Grove Village, and the broader western suburban business community.

Computerease vs. Larger IT Vendors

Comparison Point Larger IT Vendors Computerease
Service standard
Enterprise tools reserved for enterprise-sized contracts
Enterprise-grade support scaled to a mid-sized business
Response speed
Priority queues that favor the largest accounts first
15 minutes or less for critical, system-down issues
Security leadership
Security handled by a rotating account team
A CISSP directly builds and owns your strategy
Agreement terms
Multi-year terms with early termination penalties
One year to start, then month-to-month
Who you're working with
A subsidiary of a larger holding company
Family-owned, second generation, since 1984
Executive-level planning
Strategic planning reserved for premium-tier clients
A dedicated vCIO who knows your business

What Our Clients Say

I have been with Computerease for many years. They have a great team of I.T. techs, whether it is on the phone or coming to my office. They are fast and efficient.

Chris Gianino

Simple Moves

We are a small business and have been a Computerease client for years. I highly recommend their services for large and small firms. Always extremely efficient with their response times and very knowledgeable on all things computers/systems!

Erin Morris

AAIC

I have to say, these guys and girls are the BEST! They are there for every question and issue, always with the perfect resolution. We reach out to them often just exploring options with our systems. Computerease always makes our lives easier! We love them!!

Chris Sigman

Inner Wellness

Deep knowledge of systems hardware, Microsoft OS and many software platforms. Very responsive when we have issues. Computerease never leaves us hanging. A true partner for a company like ours that does not have in-house IT support. I give them my highest recommendation.

Bob Barenholtz

St. Louis Tag

Dan was incredibly kind, patient, and helpful — hands down the easiest laptop transition I’ve had in over 20 years! I was able to work all day while he handled everything, and he also got our conference room tech running smoothly. Everything feels easier and better than our old setup — the Computerease team is really good.

Kelly Crabtree

Columbus Capital Partners

Not Ready To Call Us Just Yet?

If you’re not ready to call just yet, check out our free IT Buyer’s Guide. This FREE report is your comprehensive guide to avoid hidden fees and bloated contracts that other IT support companies in Oak Brook claim that you “absolutely need.”

This report is for any Oak Brook business owner or administrator looking for the best IT company. It will save your time and money during your search for a new business IT support company. Fill out the form and you’ll get your FREE copy instantly.

Serving Businesses Near You

For fast response times, Computerease is perfectly situated to provide businesses in Oak Brook world class IT Services. Our office is available to provide a wide range of services to local businesses. With our IT Helpdesk Services, your team has 24/7 IT Support, no matter when and where they work. If your business finds itself looking at a disaster, you want Oak Brook’s most reliable IT Support Company.

As Oak Brook’s IT experts, business owners have trusted us with all their IT support needs. We work alongside business owners to design and implement a comprehensive IT strategy, keeping cyber security protections at the forefront.

Contact us today to start your journey towards headache free IT support.

Directions to Computerease’s Oak Brook Office

Computerease IT Support of Oak Brook
2021 Midwest Rd Suite 200
Oak Brook, IL 60523
Phone: 312-554-7550
Hours: Monday through Friday, 8:30 AM to 5:00 PM, with support available 24/7/365.

Computerease IT Support of Oak Brook is located at 2021 Midwest Rd. Suite 200, Oak Brook, IL 60523. From Chicago Midway International Airport (MDW) start by exiting the airport onto S Cicero Ave. Head north on S Cicero Ave toward W 59th St. Then, merge onto I-55 N/Stevenson Expy via the ramp to Chicago. After a short distance, take exit 292A to merge onto I-90 W/I-94 W toward Wisconsin. Keep left to continue on I-290 W, follow signs for West Suburbs. Continue onto I-88 W. Take the exit toward 22nd St/Cermak Road. Merge onto I-88 Frontage Rd. Use the right 2 lanes to turn right onto Midwest Rd. Your destination will be on the right, at 2021 Midwest Rd Suite 200, Oak Brook, IL.

For additional information, you can call us at 312-554-7550

Get a Free IT Assessment

If your team is dealing with slow response times, recurring technical problems, or growing concerns about a security review from a larger partner, it’s worth a second look. Our free assessment includes:

  • A full review of your current network and security posture.
  • A scan for vulnerabilities, misconfigurations, and compliance gaps.
  • A check on whether your backups would actually hold up in a real recovery.
  • A clear, plain-language report with next steps.

Get Your Free Oak Brook IT Assessment

Questions Oak Brook Businesses Ask Us

Key Takeaways

  • Computerease has supported DuPage County businesses since 1984 and is led today by Ryan Haislar, CISSP.
  • Oak Brook’s dense concentration of corporate headquarters and Class A office space shapes the enterprise-caliber standard of service this page is built around.
  • Security work is CISSP-led and built around the CIS Critical Security Controls framework.
  • Critical, system-down issues are targeted for a response in 15 minutes or less.
  • Clients begin with a one-year agreement, then continue month to month as long-term partners, not tickets.