Our directory features top custom software development companies in the USA, vetted by 12 veteran experts based on a five-point ranking criteria, and supported by 5,000+ client reviews, so you can reliably find a partner for your next project.Â
List of Top Software Development Firms in the US
6 Companies-Rankings updated: September 03, 2026
Each company on DesignRush is evaluated for technical expertise, delivery quality, and verified feedback to help businesses find reliable software development services. Some listings may be paid.
We integrate, innovate, and elevate enterprise systems.
Intellectsoft builds custom software, AI solutions, and dedicated engineering teams for enterprises and fast-growing businesses across the US and UK...
Top Services:
Software Development
Mobile App Development
Wearables
Software Testing
Blockchain
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Location
New York City, New York
Number of Employees
100 - 249
Average Hourly Rate
$80/hr
Minimal Budget
$50,000 & Up
Portfolios Count
12 Projects Listed
Intellectsoft Services
Software Development
Mobile App Development
Wearables
Software Testing
Blockchain
AI Development
UI/UX Design
Big Data Analytics
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Harley-Davidson
the London Stock Exchange
Ernst & Young
Qualcomm
Bombardier
Data sourced from the agency's DesignRush profile
Intellectsoft Reviews & Testimonials
Harshal Chhajed
Undisclosed at Undisclosed
4.5★
Software Development Review from Harshal Chhajed
They have highly skilled support staff for faster resolution which leads to customer satisfaction. Also, it has many features including IoT and blockchain apart from regular software development. If there are any changes in the scope of the project at a later stage, it can prove quite costly and also difficult to accommodate last-minute client-side scripting changes. They are versatile, cost-effective, and offer quick customer support. They offer a very customized software development tool where business needs can be addressed. It is very cost-optimized and hence can help generate good returns for business investment.
Vitaly Dyachenko
CEO and Founder at UppLabs LLC
5.0★
Software Development Review from Vitaly Dyachenko
Intellectsoft provided a great partnership by delivering quality services and working fast. They helped us to accomplish all the clients' projects on time. The team communicated transparently and showed [] great dedication. They were an ideal partner! (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile
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Supercharge - Innovating Digital Product Development
At Supercharge, we partner with our clients to turn disruption into opportunity by creating transformative digital solutions. With over 200 digital experts across New York, London, Amsterdam, Helsinki, Vienna, and Budapest, we develop digital strategies, design delightful interfaces, and build robust software...
Top Services:
Software Development
AI Development
Digital Services
Product Design
Mobile App Development
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Location
New York City, New York
Number of Employees
100 - 249
Minimal Budget
$50,000 & Up
Portfolios Count
6 Projects Listed
Supercharge Services
Software Development
AI Development
Digital Services
Product Design
Mobile App Development
Digital Strategy
IoT
UI/UX Design
Software Testing
Managed Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Telliant delivers custom software product development company expertise, quality testing, and technology consulting to partners worldwide. Operating from its U.S. headquarters, the company provides a distinctively tailored approach to outsourced software development...
Top Services:
Software Development
Location
Alpharetta, Georgia
Number of Employees
100 - 249
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Telliant Systems LLC Services
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Get RainDrop
Total Dental
Collectorpro Software Inc.
ClinOne, Inc.
Data sourced from the agency's DesignRush profile
Telliant Systems LLC Reviews & Testimonials
Sarah
Review from Google
5.0★
Sarah's Review Sourced from Google
It was a good decision for our business. The service exceeded expectations. I’d recommend them.
Brian Hiatt
Review from Google
5.0★
Brian Hiatt's Review Sourced from Google
My company, Collectorpro Software has been working with Telliant Systems since 2017 on both client-facing custom development projects and ongoing work on our own software products. Over the years we’ve partnered with them on eight to ten different projects, ranging in scope and complexity, and they have consistently delivered solid results.
Telliant stands out for their ability to understand real-world business requirements and translate them into practical, well‑implemented software solutions. They communicate clearly, ask the right questions, and stay engaged throughout the project lifecycle. Their developers integrate well with our team and have proven to be dependable, flexible, and responsive when priorities shift—as they inevitably do in software development.
If you’re looking for a long-term development partner rather than just an overseas coding shop, Telliant Systems has earned our trust over many years of successful collaboration. We’re happy to recommend them for custom software development and ongoing product work.
Tracy Vinson
Review from Google
5.0★
Tracy Vinson's Review Sourced from Google
Telliant Systems is a great place to work. I especially like working here because (I’ve been working here for 14+ years) we really care about our customers and making sure they are happy and satisfied with our work. They often go above and beyond.
Reviews verified by DesignRush and sourced from the agency's profile
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Kepler Team specializes in providing comprehensive healthcare software development services to help HealthTech businesses scale their operations...
Top Services:
IoT
AI Development
Software Development
IT Services
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Location
Charlotte, North Carolina
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
Kepler Team Services
IoT
AI Development
Software Development
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
European Medical Diagnostic Center
US Hospital Management Company
Nationwide Transportation Enterprise
Data sourced from the agency's DesignRush profile
Kepler Team Reviews & Testimonials
Jeff McGregor
Review from Google
5.0★
Jeff McGregor's Review Sourced from Google
We have been using Kepler for over a year and couldn't be more happy with their services. We started off with a smaller software team and continuing to expand our software development with them. Highly recommend!
Bryan Dennstedt
Review from Google
5.0★
Bryan Dennstedt's Review Sourced from Google
Amazing to see Kepler team continuing their success in the medical, healthcare and telemedicine space. They have done an amazing job for past clients of mine, and have the technical expertise to bring a clients visions to life. Olga M and Olga R both manage the clients expectations well, and ensure a client meets the deadlines they need for success.
Reviews verified by DesignRush and sourced from the agency's profile
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iSimplifyMe is an AI Infrastructure & Orchestration firm. We architect and operate production AI on private AWS...
Top Services:
AI Development
Software Development
Cloud Consulting
CRM Consulting
IT Services
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Location
Chicago, Illinois
Number of Employees
Under 49
Average Hourly Rate
$299/hr
Minimal Budget
$50,000 & Up
Portfolios Count
3 Projects Listed
iSimplifyMe Services
AI Development
Software Development
Cloud Consulting
CRM Consulting
IT Services
DevOps Consulting
Web Development
IT Compliance Solution
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Bartco Lighting
Dr Jay Calvert
Signature Dentistry
Data sourced from the agency's DesignRush profile
iSimplifyMe Reviews & Testimonials
Dr. Millicent Rovelo
Review from Google
5.0★
Dr. Millicent Rovelo's Review Sourced from Google
I could not be happier with this company! I have had two websites designed by them and the whole experience was amazing. Their technology and skills are top of the line and their customer service is excellent. Not to mention a good eye for aesthetics and skilled at SEO building. Highly recommend!!
Nikki Lazzara
Review from Google
5.0★
Nikki Lazzara's Review Sourced from Google
Joe and James and AJ have done wonders for our business. Excellent design as well as support while we navigate our new website. Professional. I highly recommend them if you are looking to improve your digital marketing.
Anita Patel
Review from Google
5.0★
Anita Patel's Review Sourced from Google
I’ve worked with ISimplifyMe on a number of different projects over the years, and I think they are second to none. I am very particular about whom I choose to work with, and had interviewed a lot of companies before deciding to go with ISimplifyMe. I had contemplated going with a local company (Los Angeles), thinking it may be easier to communicate, but with ISimplifyMe the time difference was a nonissue. They replied faster and more thoroughly than local companies, and have been able to deliver time and time again. They have consistently produced high quality work, while being honest, reliable, and trustworthy.
Reviews verified by DesignRush and sourced from the agency's profile
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We're a leading IT custom software firm with 30 years of experience in LATAM. Our elite 10% developer team delivers top-notch quality, speed, and affordability, as proven by clients like Motorola, Intel, IBM, and Oracle. We offer Software Dedicated Teams and Staff Augmentation to boost your project...
Top Services:
Software Development
Staff Augmentation
Software Testing
IT Services
HR Outsourcing
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Location
Atlanta, Georgia
Number of Employees
500 - 999
Average Hourly Rate
$40/hr
Minimal Budget
$50,000 & Up
Vates Services
Software Development
Staff Augmentation
Software Testing
IT Services
HR Outsourcing
Big Data Analytics
Web Development
Cloud Consulting
DevOps Consulting
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
FAQs About Software Development Companies in the USA
What services do software development companies in the USA provide?
They typically offer full-cycle software, mobile, and web development, UI/UX design, and cloud and development operations (DevOps) as part of their core services. Some companies also provide AI development and digital transformation services to support a business’s continued growth.Â
How much do custom software development services cost in the US?
Custom software development costs in the US start at $90-$160 per hour or $20,000-$500,000 per project, according to data from FullStack Labs. For more complex, enterprise-scale systems, the approximate cost is $500,000 to over $1 million per project. Â
The final cost of custom software development services in the US will depend on project scope, complexity, and integration and regulatory requirements.Â
What is the typical timeframe for custom software development services?
They can take 8-12 weeks for basic MVP development and over 3 years for production-ready enterprise builds. Estimated custom software solution timelines according to Goji Labs: Â
Small builds: 8-12 weeks for MVPs and 12-24 weeks for full product releaseÂ
Mid-sized builds: 8-16 weeks for MVPs and 16-40 weeks for complete productsÂ
Large builds: 12-36 weeks for MVPs and 36-144 weeks for fully deployable productsÂ
What processes and performance benchmarks do top US software companies follow to ensure quality software?
To ensure quality solutions, leading software development companies in the USA perform code reviews, automated checks, clear documentation, and reproducible deployment environments. For instance, reputable companies aim for less than 2% defects before production and 99.5% uptime for system maintenance based on data from Shakuro and BlueGrid.io.Â
What are the most common industries that use these services?
While there is no concrete data on the industries that work with custom software development companies in the USA, StackOverflow reports that developers most commonly work in tech (53%), telecom (5.5%), and fintech (5.4%) industries. Â