Find leading big data companies in Illinois that can transform your data into actionable insights. DesignRush connects you with agencies trusted by major brands like Mastercard and Volkswagen. With over 100,000 client-agency matches made each month and 40,000+ vetted agencies, you can rely on our platform to guide you in selecting the right partner. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.
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 × Chicago × Government × Sort by: Avg Hourly Price: High to Low ×Clear Filters
We Help Manufacturers Modernize Their Legacy Data Systems
IT Impact, Inc. delivers custom database and software solutions using Microsoft technologies. Through its Access Experts division, the company specializes in Microsoft Access development, database repair, system upgrades, and migrations to SQL Server and cloud platforms...
Top Services:
IT Services
Big Data Analytics
Software Development
Cloud Consulting
ERP Consulting
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Location
Chicago, Illinois
Number of Employees
Under 49
Average Hourly Rate
$235/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
3 Projects Listed
IT Impact, Inc. Services
IT Services
Big Data Analytics
Software Development
Cloud Consulting
ERP Consulting
CRM Consulting
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
House of Flavors
Northland CDL Training
University Endowment Fund
Data sourced from the agency's DesignRush profile
IT Impact, Inc. Reviews & Testimonials
Mike Russell Review from Google
5.0★
Mike Russell's Review Sourced from Google
We met with Juan Soto and Josiah Lim, and the amount of useful information provided in a short period of time was above and beyond our expectations! They care about their customers, I would highly recommend!
Max Biella Review from Google
5.0★
Max Biella's Review Sourced from Google
BMD International Trading Corp has had an excellent experience working with IT Impact. Junibeth and the rest of the team have consistently demonstrated professionalism, responsiveness, and a strong understanding of our business and our software needs. We custom made ours from scratch with IT Impact and it works like a charm!
Chris Marshall Review from Google
5.0★
Chris Marshall's Review Sourced from Google
I hired IT Impact to redo my website. It's so much better than it was and their staff are insightful and professional. I love the working relationship!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Leading Technology Partner Fortune 500 Enterprises Trust to Build, Modernize, and Scale Globally
With 2,500+ consultants across the US, Canada, Latin America, and India, Improving puts experienced technologists in your market, not just on your project. Our teams understand the regulatory landscape, industry norms, and technical expectations of the markets you serve...
Top Services:
IT Services
Software Development
Cloud Consulting
DevOps Consulting
Managed Services
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Location
Chicago, Illinois
Number of Employees
1000 & Up
Average Hourly Rate
$199/hr
Minimal Budget
$10,000 - $25,000
Improving Services
IT Services
Software Development
Cloud Consulting
DevOps Consulting
Managed Services
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Integra Connect
Westfield Insurance
Collision Auto
Data sourced from the agency's DesignRush profile
Improving Reviews & Testimonials
anurag kumar Review from Google
5.0★
anurag kumar's Review Sourced from Google
Proud to be a part of Improving, building Trust with our clients, partners and employees, serving the best IT experience in our industry
Tim Dickey Review from Google
5.0★
Tim Dickey's Review Sourced from Google
Improving is one of the most innovative consulting firms in the digital services industry to work with.
Rob Mapes Review from Google
5.0★
Rob Mapes's Review Sourced from Google
Improving allows several MeetUp groups to use their conference rooms in the evenings. And Improving is always in the top level of reviews for best companies to work for in DFW.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
SoftDoes builds custom software, AI, and web applications for mid-market companies that need enterprise-grade results without the overhead of an in-house team. U.S.-based leadership. Full IP ownership. No lock-in...
Top Services:
Software Development
AI Development
Mobile App Development
Web Development
UI/UX Design
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Location
Chicago, Illinois
Number of Employees
50 - 99
Average Hourly Rate
$75/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
1 Project Listed
Soft Does Services
Software Development
AI Development
Mobile App Development
Web Development
UI/UX Design
Cloud Consulting
Blockchain
Software Testing
Digital Strategy
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
VerifiedVerified by the DesignRush team for authenticity and credibility.
ELEKS, a trusted partner for guaranteed software engineering excellence, quality, and transparency.
ELEKS is the partner of choice for many leading enterprises, SMEs and technology challengers. We help businesses elevate their value through custom software development, product design, QA and consultancy services.ELEKS is a trusted partner for guaranteed software engineering excellence...
Top Services:
Software Development
Mobile App Development
Cloud Consulting
Cybersecurity
AI Development
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Location
Chicago, Illinois
Number of Employees
1000 & Up
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
12 Projects Listed
ELEKS Services
Software Development
Mobile App Development
Cloud Consulting
Cybersecurity
AI Development
ERP Consulting
CRM Consulting
Product Design
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aramex
TAIT
Acino
GRTGaz
Autodesk
Blackboard
Havas
ESET
Eagle
teleologica
Data sourced from the agency's DesignRush profile
ELEKS Reviews & Testimonials
John Armstrong Founder, CEO & CTO at Civex
5.0★
Software Development Review from John Armstrong
ELEKS was able to take our vision and help us deliver an app that empowers retail shareholders to make their voices heard. They’ve brought a depth and breadth of technical expertise and user experience design to challenge us on our assumptions on how people would want to interact with the app. From a mobile development perspective, we wanted to go to market with both an Android and an iPhone simultaneously.
Mark Battcock Digital Communication Director at Imerys
5.0★
Software Development Review from Mark Battcock
We are very happy with our ELEKS partnership; the dedication of the team is exceptional. We would certainly recommend ELEKS and would be happy to work with them again. In fact, they continue to be our partner for the 2nd phase of the CDX project to add even more customer services to the website.
Huntly Christie CEO at Christie Lites
5.0★
Software Development Review from Huntly Christie
What impressed me about ELEKS is the culture. There is a very strong culture of discipline and performance, and software is a profession where discipline is very important. Good software development can only happen with a strong work ethic, and I think the ELEKS team really understands that.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, high-impact tech initiatives. We solve complex challengeslegacy bottlenecks, tech debt, talent gaps, compliance risks, and system fragmentation...
Top Services:
Mobile App Development
IT Services
Software Development
Staff Augmentation
IT Compliance Solution
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Location
Chicago, Illinois
Number of Employees
250 - 499
Average Hourly Rate
$45/hr
Portfolios Count
36 Projects Listed
Zazz Services
Mobile App Development
IT Services
Software Development
Staff Augmentation
IT Compliance Solution
Cybersecurity
Managed Services
Cloud Consulting
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
JP Morgan
BBC News
PayPal
Harvard Innovation Labs
HBO
Jeddah Season
McDonald's
NBA
Honda
Citibank
Data sourced from the agency's DesignRush profile
Zazz Reviews & Testimonials
Sam Zaid CEO at Getaround
5.0★
Mobile App Development Review from Sam Zaid
Their team's technical proficiency and creativity have significantly contributed to the success of our world's first connected carsharing marketplace. Zazz not only met but exceeded our expectations, delivering a seamlessly integrated and user-friendly mobile app that has truly empowered people to carshare everywhere. The collaboration with Zazz has proven to be a valuable partnership, marked by open communication, timely delivery, and a genuine dedication to our mission.
Jay Thrash SENIOR IOS DEVELOPER at Epic Games
5.0★
Mobile App Development Review from Jay Thrash
Their unparalleled expertise and dedication to excellence were evident throughout the entire collaboration. Zazz's team consistently demonstrated a deep understanding of our vision, translating it into a seamless and innovative mobile application. Their commitment to quality and precision in every aspect of the development process was truly impressive. Zazz's ability to navigate complex challenges with agility and deliver solutions that exceeded our expectations was instrumental in the success of our project.
Don Harmon Director of Global IT Services at Dorel Juvenile
5.0★
Mobile App Development Review from Don Harmon
Zazz's commitment to delivering a high-quality mobile app for Dorel Juvenile was evident throughout the entire development process. The team consistently communicated progress, promptly addressed any concerns or modifications, and ensured that the final product not only met but exceeded our expectations. The mobile app developed by Zazz not only showcased cutting-edge technology but also reflected a deep understanding of the child-centric focus that Dorel Juvenile upholds.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We have extensive global resources, deep industry, business process, and technological expertise, as well as a track record of producing uplifting success tales for businesses all over the world...
Top Services:
Mobile App Development
Software Development
Software Testing
Wearables
CRM Consulting
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Location
Chicago, Illinois
Number of Employees
100 - 249
Average Hourly Rate
$40/hr
Minimal Budget
$25,000 - $50,000
Taction Software Services
Mobile App Development
Software Development
Software Testing
Wearables
CRM Consulting
Big Data Analytics
Staff Augmentation
DevOps Consulting
AI Development
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Airtel
Today
Docmate
AHT (American Healthcare Technologies
CRT Medical System
Data sourced from the agency's DesignRush profile
Taction Software Reviews & Testimonials
UDIT CHIKAR Review from Google
5.0★
UDIT CHIKAR's Review Sourced from Google
Being part of this team has been an awesome experience. From day one, I felt welcomed and supported. The projects we work on are cutting-edge, especially in healthcare and mobile app development, and there's a real sense of purpose behind everything we do. The leadership values new ideas and encourages growth, which makes it a great place to build your career. Honestly, it’s the best custom software development company in Chicago to work for if you're passionate about tech and making a difference.
Mansi Sharma Review from Google
5.0★
Mansi Sharma's Review Sourced from Google
I’ve been part of this company for a while now, and it’s been an amazing journey. The environment is fast-paced but supportive, and there’s always something new to learn. We work on impactful projects, especially in the healthcare space, which makes the work feel meaningful. The leadership is approachable, and there’s a strong focus on innovation and quality. Proud to be part of what I truly believe is the best custom software development company in Chicago.
Kuldeep Singh Review from Google
5.0★
Kuldeep Singh's Review Sourced from Google
Working here has been a truly rewarding experience. The team is talented, collaborative, and always pushing to stay ahead with new technologies. What I appreciate most is the company’s focus on both employee growth and delivering real value to clients — especially in the healthcare space. There's a strong sense of purpose in the work we do. Without a doubt, this is the best custom software development company in Chicago for anyone looking to grow their skills and be part of meaningful projects.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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