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.
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.

Osom Studio
VerifiedVerified by the DesignRush team for authenticity and credibility.WordPress and WooCommerce development agency since 2011.
Our strength lies in that we understand our Client's challenges of running a tech company matched with the ability to engineer a stable and robust WordPress-based websites. No matter how niche and hard-to-explain your product is, we'll hop on your wagon and help you put your message across...
Top Services:
- WordPress Website Design
- Web Development
- eCommerce Development
- Software Development
- Web Design
- Show more
- Location
- Miami, Florida
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 17 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsOsom Studio Services
Data sourced from the agency's DesignRush profileVivitek Apogee Electronics Qoolize Filestage.io 3D Connexion Kontakt.io eurobank Vromo Kodak Alaris IKEA
Osom Studio Reviews & Testimonials

WordPress Review from Sarah Bumbarger
Osom Studio provided website maintenance for our company website and was excellent to work with. Our website was a legacy Wordpress website that was difficult to work with and had many issues. The team at Osom helped us to resolve issues and kept the website running steadily. They communicated clearly and responded quickly if any issues came up, and their work quality was excellent. I would highly recommend working with them, especially for any company that has a legacy site that needs support. Thank you Osom!

WordPress Website Design Review from Sascha Kienitz
We build thermal imaging hardware, so our website is a product catalogue and it has to work flawlessly for our clients and distributors. For a long time the technical side of it was our weak point: changes were made directly on the live site, things broke, and nobody on our team could explain how the integrations actually worked. What we needed was not more marketing. We needed WordPress experts who treat the technical layer as the main job. That is the clearest difference I see between Osom Studio and the agencies we have worked with: with a marketing agency, development is something they also do, and the quality of it drifts over time. With Osom Studio their engineering is excellent. They started with a security and stabilisation audit, worked through it in a fixed number of hours, and reported against it. They test in a separate environment instead of on our live site, which sounds obvious and had not been our reality before. We have since moved the whole technical implementation of our websites to them.

WordPress Review from Marco Mancini
We have been working closely with OSOM for a few months now to improve various aspects of our website. They are a very professional, efficient and friendly team. They always understand what we want and carry it out with precision. I highly recommend working with them.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTransforming Enterprises with AI Applications
ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide...
Top Services:
- AI Development
- Big Data Analytics
- Software Development
- IT Services
- Staff Augmentation
- Show more
- Location
- San Jose, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 23 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsThirdEye Data Services
Data sourced from the agency's DesignRush profileMicrosoft Corp Walmart AWS SCE XPERI Texisle Glastrosch British Petroleum CRC Google
ThirdEye Data Reviews & Testimonials

Big Data Analytics Review from Matt Singer
ThirdEye helped analyzing data and recommending architecture for enhanced analytics. They understood our business needs really well and went above and beyond to deliver what we were looking for.

Software Development Review from Kumar Mankala
ThirdEye developed CV ML models to automate image quality assessment for Field Asset Inspection (part of Wildfire Mitigation Program). The team delivered the models in time, was able to adapt to changing requirements.
Erhan Erdem's Review Sourced from Google
I did a voice study for them almost two months ago, still waiting for my payment. I contacted them multiple times and they don't even respond. What a joke.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsIT Support Designed To Scale With Your Business
MazikUSA delivers tailored onsite and offsite IT support, staff augmentation, and end-to-end technology solutions designed to help organizations innovate and scale. We support clients through globally distributed delivery teams across the globe - ensuring scalable, cost-effective, and time-zone-aligned...
Top Services:
- Software Development
- AI Development
- IoT
- IT Services
- Cybersecurity
- Show more
- Location
- Park Ridge, Illinois
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMazikUSA Services
Data sourced from the agency's DesignRush profileSui Southern Gas Company Limited United Energy Pakistan Limited Invexal (USA) Bank AlBilad (KSA
NYC MBE: cloud, security, software, web
NYC MBE-certified IT firm: cloud architecture, application security, custom software, and websites for SLED and commercial buyers...
Top Services:
- Software Development
- AI Development
- Cloud Consulting
- IT Services
- Cybersecurity
- Show more
- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsIT Custom Solution LLC Services
Data sourced from the agency's DesignRush profileCity of Springfield, MO Rensselaer County, NY GovBid AI by IT Custom Solution LLC
We are a software design & development company.
We solve problems through purpose-built apps, websites, and platforms. We're experienced in UI/UX design, website development, desktop and mobile app development, APIs, generative AI solutions, and cloud services. Our UI design and software development experts work with your team to achieve your business...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- Web Design
- UI/UX Design
- Show more
- Location
- King of Prussia, Pennsylvania
- Number of Employees
- Under 49
- Average Hourly Rate
- $135/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFynydd LLC Services
Data sourced from the agency's DesignRush profileU.S. Bancorp Red Hat Software Pfizer Saint-Gobain U.S. Dept. of Justice Heinz The Vanguard Group New Relic Merck Sharp & Dohme Philadelphia Scientific LLC
Fynydd LLC Reviews & Testimonials
David Sonn's Review Sourced from Google
Fynydd is a team of very talented problem solvers, keenly skilled in delivering technology solutions. We flat out trust them. The applications, websites, and software they build are rock solid. And, they stand behind their work. In a world where the codebase could be faulty and you wouldn't even know it until it's far too late, Fynydd is the choice that brings peace of mind. #BeyondJustCoders
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsMobile & Web Apps Dev
Lithios was established in 2014 with the goal of developing mobile experiences and products that have a significant impact on our community by a group of enthusiastic NCSU entrepreneurs...
Top Services:
- Mobile App Development
- Software Development
- VR/AR
- Web Development
- UI/UX Design
- Show more
- Location
- Raleigh , North Carolina
- Number of Employees
- Under 49
- Average Hourly Rate
- $199/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsLithios Services
Data sourced from the agency's DesignRush profileDraft Kings Offline Operation 36 Silbo Coworks
Lithios Reviews & Testimonials
Brennan Barber's Review Sourced from Google
Great experience working with the Lithios team. They were able to dive in quickly on our project, gain a deep understanding of the product, and provide valuable insights and recommendations throughout the process. They managed expectations well and met our timelines and budget. Really couldn't have asked for a more positive working relationship!
Andrew Katz's Review Sourced from Google
Brilliant development group. We brought a high innovation project to Lithios and they immediately found the critical path to evaluate the feasibility of a complete build. We are excited to continue working together.
Adam Clark's Review Sourced from Google
We really enjoyed working with The Lithios Team!! They have great technical & interpersonal skills!! If you plan to create an App, Lithios is a must.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSiegePal is a cybersecurity and AI security engineering firm focused on securing cloud-native and regulated environments. We help organizations strengthen cloud security, identity systems, compliance readiness, and application security through hands-on implementation. Unlike firms that stop at...
Top Services:
- Cybersecurity
- Cloud Consulting
- Software Development
- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSiegePal Services
Data sourced from the agency's DesignRush profileAiperion Fortech Products Halfcourt Marketplace
Building High-Performing Mobile & Web Apps
We steer top-tier brands and early-stage startups toward providing their customers with cutting-edge digital design, web, and mobile experiences...
Top Services:
- Mobile App Development
- Branding
- Software Development
- Web Development
- AI Development
- Show more
- Location
- Arlington, Virginia
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsUnstuck Labs Services
Data sourced from the agency's DesignRush profileRooam Traxyl Visajump MyBuzz iEatz
Unstuck Labs Reviews & Testimonials
Seth Banks's Review Sourced from Google
Amazing group of advisors and experts. Was invited from a friend to attend an event and the value walking away was tremendous. Thanks Unstuck Labs!
Ximena Segovia's Review Sourced from Google
Unstuck Labs team has been so professional on our interactions, especially during their Unstuck Tuesdays sessions! Feels like chatting with friends who happen to be total pros. 🙌🏼 Their advice was spot-on and totally helped me on my project!!If you want to experience their awesome vibe, I highly recommend joining their Tuesday sessions! You won't be disappointed 😊
Fahd Malik's Review Sourced from Google
Really easy to talk to and work along with. Helped me develop and scale a web application. Team is responsive and able to provide deliverables on a timely manner.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTransforming Enterprise Operations with Agentic AI
CogniAI helps commercial organizations and Government modernize operations through Agentic AI, intelligent automation, data engineering, geospatial intelligence, and enterprise AI platforms. Our expertise spans AI workflow orchestration, digital twins, data modernization, and secure AI solutions that improve...
Top Services:
- AI Development
- Big Data Analytics
- IT Services
- CRM Consulting
- ERP Consulting
- Show more
- Location
- Leesburg, Virginia
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCogniAI Inc Services
Data sourced from the agency's DesignRush profileNC Pain Management Federal Communications Commission Federal Trade commission
Software Development Companies by City
Software Development Companies by State
Software Development Specializations in the US
Popular Services
Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
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.
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.
The final cost of custom software development services in the US will depend on project scope, complexity, and integration and regulatory requirements.
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:
- Small builds: 8-12 weeks for MVPs and 12-24 weeks for full product release
- Mid-sized builds: 8-16 weeks for MVPs and 16-40 weeks for complete products
- Large builds: 12-36 weeks for MVPs and 36-144 weeks for fully deployable products
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.
How do I check whether a US software development company can handle a company my size?
Primarily, look for case studies that name the client and the person who signed off. Vague, anonymized case studies hide the exact details you need to judge whether a vendor has handled a business like yours.
A good example of this in practice is Designli, which publishes named stories, including work for a mid-market firm with around $100 million in annual revenue.
What are the best software development companies in the USA?
The best software development companies in the USA are:
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