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Best Illinois Engineering Design Firms

2 Companies-Rankings updated: September 03, 2026

DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.

Engineering Design
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  • Clay

    VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.

    Top UI/UX design, web design, and branding agency in San Francisco.

    We're a global group of strategists, designers, and engineers building notable brands and premier digital experiences that captivate users worldwide.Our unified, AI-infused creative approach ensures scalability and consistency across all brand touchpoints by building robust design systems...

    Top Services:

    • UI/UX Design
    • Mobile App Development
    • Web Development
    • Branding
    • Web Design
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    50 - 99
    Average Hourly Rate
    $175/hr
    Portfolios Count
    12 Projects Listed

    Clay Services

    • UI/UX Design
    • Mobile App Development
    • Web Development
    • Branding
    • Web Design
    • Video Production
    • Product Design
    • Graphic Design
    • Logo Design
    • Design Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Meta
    • Google
    • Discover
    • Stripe
    • Coca-Cola
    • Coinbase
    • Uber
    • Sony
    • Slack
    • Amazon
    Data sourced from the agency's DesignRush profile

    Clay Reviews & Testimonials

    • Anonymous Co-Founder at Skylum
      5.0★

      Web Development Review from Anonymous

      Clay built our new website to support a product launch, and we were impressed by how quickly they delivered. The site met our expectations perfectly. They worked efficiently and provided high-quality results right on schedule.

    • Anonymous Manager at Car Retailer
      5.0★

      Web Design Review from Anonymous

      Clay designed and developed our car retail website, and the results were outstanding. The site looked stunning and worked exactly as needed. They stood out for their patience, attentiveness, and excellent service. Communication was always clear, and they delivered on time.

    • Anonymous Director of Web Strategy & Operations at Nonprofit Org
      5.0★

      Web Design Review from Anonymous

      Clay redesigned and rebuilt our nonprofit’s website with fresh UX/UI research to guide the process. The new site improved conversions, earned great user feedback, and boosted internal efficiency. Communication across all channels was seamless, and their responsiveness and high-quality results went beyond what we expected.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit WebsiteView Profile
    4.9 4.9 (37)
    4.8 4.8 (21)

  • CodingCops

    Your AI-Native Technology Partner

    CodingCops is an AI-native technology and engineering partner specializing in AI development, vetted engineering talent, Salesforce, product & software development, and cloud & DevOps...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • DevOps Consulting
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed

    CodingCops Services

    • AI Development
    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • DevOps Consulting
    • Cloud Consulting
    • Web Development
    • Big Data Analytics
    • Product Design
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Genuity
    • Revinate
    • Lango
    • Eventbrite
    • Locable
    • Go Moment
    Data sourced from the agency's DesignRush profile

    CodingCops Reviews & Testimonials

    • kathi Richard
      kathi Richard Review from Google
      5.0★

      kathi Richard's Review Sourced from Google

      We had this cool idea to create adaptive learning paths for our students based on their quiz performance and interaction patterns. But building the logic was beyond our team’s expertise. CodingCops helped us hire AI developers who designed a lightweight recommendation model that personalized learning modules dynamically. It made our platform way more engaging for students.

    • Ashley Kai
      Ashley Kai Review from Google
      5.0★

      Ashley Kai's Review Sourced from Google

      CodingCops has some of the best engineers out there. We brought on a QA Automation Engineer through them, and he turned out to be the best we’ve worked with after trying several contractors before. Super skilled, technically sharp, and he really took ownership of QA. He felt like part of our team from day one, not an outsider. We’ll definitely be going back to CodingCops again, not just for this role but for others too.

    • Rachel Willy
      Rachel Willy Review from Google
      4.0★

      Rachel Willy's Review Sourced from Google

      They’ve done an excellent job connecting me with a skilled developer. They’ve also been very responsive in addressing any issues along the way. I’m extremely satisfied with both the service CodingCops provides and the developer I’ve had the chance to work with.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit WebsiteView Profile
    4.3 4.3 (15)

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