South DakotaSioux Falls, Rapid City, Brookings, Aberdeen and more

Software Development Company in South Dakota

We build card and banking platforms in Sioux Falls

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

  • Senior US-based engineers
  • Central and Mountain Time working hours
  • PCI DSS, SOC 2 and HIPAA-aware
Now booking Q4 2026 projects in South Dakota
Active across South Dakota12 cities served
20+South Dakota clients
CT and MTSame time zones
2 WeeksCall to kickoff
Trusted by South Dakota teams
150+Products shipped
20+South Dakota clients
4.9/5Average Clutch rating
92%Clients who return
Custom software for South Dakota

Custom Software Development Company Serving All of South Dakota

TechRev is a software development company in South Dakota serving businesses across the state, from credit card banks, trust companies and health systems in Sioux Falls and AgTech and research programs in Brookings to cybersecurity programs in Madison, defense contractors near Ellsworth Air Force Base and tourism businesses in Rapid City and the Black Hills. We build custom software, AI products, mobile apps and SaaS platforms for companies that have outgrown off-the-shelf tools.

South Dakota is a national center for card banking and trust services, but senior engineers are hard to find outside Sioux Falls. 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 and Mountain Time hours, so your team gets answers the same day in Sioux Falls or Rapid City.

For banking, trust, healthcare and defense clients, we design for PCI DSS, GLBA, HIPAA, CMMC and South Dakota's breach notification law from the first sprint.

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

Services

Software Development Services in South Dakota

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

Industries

Industries We Serve in South Dakota

South Dakota is a national center for credit card banking and trust services, with strong healthcare, agriculture, defense and tourism sectors and a growing cybersecurity program. Our software development services in South Dakota are built around the rules and workflows each industry runs on.

Locations

Software Development Across Major South Dakota Cities

TechRev provides software development services in South Dakota from Sioux Falls and Eastern South Dakota to Pierre, Rapid City and the Black Hills. Select a city on the map or in the list to see what we build there.

Touring cities
Compliance

Built for South Dakota Compliance and Data Privacy

South Dakota has its own breach notification law with a low Attorney General notice threshold, and its card banking, trust and defense sectors carry strict federal and industry requirements. We plan for them before the first line of code.

Why TechRev

Why Businesses Choose TechRev as Their Software Development Company in South Dakota

South Dakota companies usually compare three options when choosing between local agencies and outside vendors. Here is how they differ.

Strong fit Variable Limited fit
This comparison table scrolls horizontally on small screens.
What mattersTechRevOffshore vendorLocal South Dakota agency
Case studies

South Dakota Success Stories

Explore our HealthTech and LegalTech capabilities and an AgTech MVP built for a Brookings startup.

Client feedback

What South Dakota 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 South Dakota. Below is a typical pipeline run on a South Dakota card banking project.

ci / card-servicing / feature/ai-request-routing
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 South Dakota 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 South Dakota companies before a first call.

How much do software development services in South Dakota cost?

Pricing for software development services in South Dakota depends on scope, integrations and compliance needs. Most MVPs we build for South Dakota 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 South Dakota, and can you meet on-site?

Our engineers are based in the US and work Central and Mountain Time hours. For discovery workshops and launches, we meet on-site in Sioux Falls, Rapid City and Brookings, and elsewhere in the state on request.

Which South Dakota cities do you serve?

We work with companies across the state, including Sioux Falls, Brookings, Madison, Watertown, Aberdeen, Mitchell, Yankton, Pierre, Rapid City, Box Elder, Spearfish and Lead.

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 South Dakota 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 meets PCI DSS, HIPAA and South Dakota data security requirements?

Yes. We plan for PCI DSS and GLBA for card banking and trust work, HIPAA for healthcare, CMMC for defense contractors and South Dakota breach notification rules during discovery, then document access controls, encryption and audit logging for your compliance team.

Do you offer AI and generative AI development in South Dakota?

Yes. We build AI agents, chatbots, voice agents, document processing and predictive models, connect them to your existing data, and document how they handle personal, financial and health data.

What makes TechRev a different software development company in South Dakota?

When you compare any software development company in South Dakota, 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 without the long search for local talent.

Do you offer web design, IT services and managed IT services in South Dakota?

Yes. Our web design and web development work in South Dakota covers customer portals, booking sites and marketing sites. Our IT services and managed IT services in South Dakota keep the cloud infrastructure, devices and applications behind them secure and up to date.

Which industries do you specialize in?

Banking, credit cards and FinTech, trust and wealth management, healthcare, agriculture, food processing, defense, cybersecurity, tourism and research.

Free 15-minute call

Tell Us What's Broken

Looking for a software development company in South Dakota 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 Sioux Falls, Rapid City or Brookings

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No sales pitch. A senior engineer joins every call.