IllinoisChicago, Naperville, Champaign-Urbana, Springfield and more

Software Development Company in Illinois

We build FinTech platforms in Chicago

Illinois companies come to us with a problem, not a spec. Our senior US-based engineers deliver software development services in Illinois that find what is slowing your business down and fix it.

  • Senior US-based engineers
  • Central Time working hours
  • HIPAA, SOC 2 and BIPA-aware
Now booking Q4 2026 projects in Illinois
Active across Illinois12 cities served
40+Illinois clients
CTSame time zone
2 WeeksCall to kickoff
Trusted by Illinois teams
150+Products shipped
40+Illinois clients
4.9/5Average Clutch rating
92%Clients who return
Custom software for Illinois

Custom Software Development Company Serving All of Illinois

TechRev is a software development company in Illinois serving businesses across the state, from trading firms and hospital systems in Chicago and insurers in Bloomington-Normal to manufacturers in Rockford and agriculture companies across Central Illinois. We build custom software, AI products, mobile apps and SaaS platforms for companies that have outgrown off-the-shelf tools.

Every engagement starts with a free problem-solving call. We look at the workflow, the data and the systems you already run, then recommend what to build and what to leave alone. Our engineers are senior, based in the US and work Central Time hours, so your team gets answers the same day.

For healthcare, financial and insurance clients, we design for HIPAA, the Illinois Biometric Information Privacy Act and the Illinois Personal Information Protection Act from the first sprint.

Whether you need a single MVP or a long-term product team, our software development services in Illinois cover strategy, design, engineering, cloud and ongoing support under one contract.

Services

Software Development Services in Illinois

TechRev offers end-to-end software development services in Illinois, from strategy and design to engineering and support. Pick a category to see what we build for Illinois companies.

Industries

Industries We Serve in Illinois

Illinois leads the country in trading, insurance, transportation and agriculture, with a growing technology sector in Chicago. Our software development services in Illinois are built around the rules and workflows each industry runs on.

Locations

Software Development Across Major Illinois Cities

TechRev provides software development services in Illinois from Chicago to Southern Illinois. Select a city on the map or in the list to see what we build there.

Touring cities
Compliance

Built for Illinois Compliance and Data Privacy

Illinois has the strictest biometric privacy law in the country and new rules on AI in hiring, on top of federal law. We plan for them before the first line of code.

Why TechRev

Why Businesses Choose TechRev as Their Software Development Company in Illinois

Illinois companies usually compare three options. Here is how they differ.

Strong fit Variable Limited fit
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What mattersTechRevOffshore vendorLocal Illinois agency
Case studies

Illinois Success Stories

Results from our software development services in Illinois for healthtech teams, law firms and startups in Peoria, Chicago and Champaign-Urbana.

Client feedback

What Illinois Clients Say

Feedback from operators, founders and technology leaders we work with across the state.

4.9 out of 5 average rating on Clutch
Process

How We Work

Six stages from first call to scale. You see working software every two weeks.

Engineering standards

Senior Engineering Behind Every Release

Every commit is reviewed, tested and scanned before it reaches your users. This is what you should expect from a senior software development company in Illinois. Below is a typical pipeline run on an Illinois FinTech project.

ci / risk-engine / feature/ai-limit-alerts
Build
Test
Security
Deploy
99.95%Uptime SLA on managed platforms
90%+Test coverage target
DailyProduction deploys
<200msp95 API response target
  • Senior code review on every pull request
  • Automated tests and security scans on every commit
  • Infrastructure as code with Terraform
  • Monitoring and alerting with Datadog and Sentry
  • Your code, your repository, full documentation at handover
Engagement models

Flexible Engagement Models

Our software development services in Illinois are available in four engagement models. Choose the one that fits your budget, timeline and in-house team.

Fixed Price

A defined scope, timeline and budget agreed after discovery.

Best for: MVPs and well-defined projects

Time and Materials

Pay for the hours worked, with scope that can change as you learn.

Best for: Evolving products and R&D

Dedicated Team

A full product team that works only on your roadmap.

Best for: Long-term platforms and SaaS

Staff Augmentation

Senior engineers who join your existing team and processes.

Best for: Filling skill gaps fast
Technology

Technologies We Use

We pick tools that your team can maintain after launch.

FAQ

Frequently Asked Questions

Common questions from Illinois companies before a first call.

How much do software development services in Illinois cost?

Pricing for software development services in Illinois depends on scope, integrations and compliance needs. Most MVPs we build for Illinois companies cost between $40,000 and $90,000. Larger platforms with integrations and compliance requirements usually range from $120,000 to $400,000. After the free call, we give you a written estimate with a range for each phase.

Do you have developers in Illinois, and can you meet on-site?

Our engineers are based in the US and work Central Time hours. For discovery workshops and launches, we meet on-site in Chicago, Evanston and Naperville.

Which Illinois cities do you serve?

We work with companies across the state, including Chicago, Evanston, Schaumburg, Naperville, Deerfield and Lake County, Rockford, the Quad Cities, Peoria, Bloomington-Normal, Champaign-Urbana, Springfield and Carbondale.

How long does it take to build an MVP or a mobile app?

A focused MVP usually takes 10 to 14 weeks from kickoff. A full mobile app with a backend and admin panel takes 4 to 6 months. You see a working build every two weeks.

Can I hire dedicated developers for my Illinois company?

Yes. You can add one engineer or a full team. Developers join your tools, standups and code reviews, and most start within two weeks.

Do you build software that complies with HIPAA and BIPA?

Yes. We plan for HIPAA, the Illinois Biometric Information Privacy Act, the Personal Information Protection Act and Illinois rules on AI in employment where they apply during discovery, then document access controls, encryption and audit logging for your compliance team.

Do you offer AI and generative AI development in Illinois?

Yes. We build AI agents, chatbots, voice agents, document processing and predictive models, connect them to your existing data, and plan for Illinois rules on biometric data and AI used in employment decisions.

What makes TechRev a different software development company in Illinois?

When you compare any software development company in Illinois, look at seniority, time zone and regulated-industry experience. We start with the problem, not the feature list, and you get senior US-based engineers at a lower cost than most Chicago agencies.

Do you work with startups as well as enterprises?

Yes. We build MVPs for seed-stage startups in Chicago and Champaign-Urbana and modernize systems for large companies in Chicago, Schaumburg and Bloomington-Normal. The process scales to both.

Which industries do you specialize in?

Financial services and trading, healthcare and life sciences, insurance, logistics, manufacturing, agriculture, retail, legal and education.

Free 15-minute call

Tell Us What's Broken

Looking for a software development company in Illinois that starts with your problem? Book a free problem-solving call with a senior engineer. You leave with a clear recommendation, whether or not you work with us.

  • Reply within one business day
  • NDA available before we talk details
  • Meet in person in Chicago, Evanston or Naperville

Book your call

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No sales pitch. A senior engineer joins every call.