Our industry analysts ranked the leading IT services companies in Illinois that help businesses run and manage their digital infrastructures efficiently. Review their prices, portfolios, client experiences, team size and more to select the best partner for your needs.

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United States × Illinois × Construction × $1,000 - $10,000 ×Clear Filters
  • Building Custom Software, Web And Mobile Solutions

    TechAvidus is an IT agency with 10+ years of experience, delivering AI-powered custom software, web and mobile apps, and e-commerce solutions to clients including Pfizer and GSK. It has completed 300+ projects. Best for startups and SMBs seeking cost-effective offshore development...

    Top Services:

    • AI Development
    • Web Development
    • Software Development
    • Mobile App Development
    • Social Media Marketing
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    100 - 249
    Average Hourly Rate
    $18/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    56 Projects Listed
  • Strong Tech Strong Business

    Advanced I.T. is a Chicago-based Managed IT and Cybersecurity provider specializing in fast, secure, and compliant tech solutions for service-driven businesses. We support CPAs, law firms, healthcare providers, and brokers with local expertise, same-day responsiveness, and zero excuses. From ransomware...

    Top Services:

    • IT Services
    • Cybersecurity
    Location
    Chicago, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $175/hr
    Minimal Budget
    $1,000 - $10,000
  • IT support and marketing under one roof. Est. 2018.

    We're a managed IT and marketing shop with real offices in Sarasota, Clearwater, and St. Charles, Illinois. Most of our clients came to us after getting burned by a provider who was slow to answer the phone. So that's the thing we obsess over: picking up fast, fixing it right, and knowing your setup well...

    Top Services:

    • IT Services
    • Managed Services
    • Cybersecurity
    • Digital Marketing
    • Advertising
    • Show more
    Location
    St. Charles, Illinois
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Agile. Capable. Committed.

    sa.global, a trusted Microsoft partner, delivers cloud-based, vertical-focused solutions using Microsoft business applications & the Microsoft Business Cloud. Serving project-based verticals with 800,000+ users in 80 countries, sa.global has 30+ years of experience and multiple Microsoft accolades...

    Top Services:

    • ERP Consulting
    • CRM Consulting
    • Cloud Consulting
    • IT Services
    • Business Consulting
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    500 - 999
    Minimal Budget
    $1,000 - $10,000
  • SEO That Delivers Real Business Outcomes

    SEOServices.io is a data-driven SEO agency helping businesses boost rankings, drive organic traffic, and grow online with technical SEO, content optimization, and link-building strategies...

    Top Services:

    • Digital Services
    • IT Services
    • Web Design
    • WordPress Website Design
    • Web Development
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,387+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
5

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.