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. 

List of Top Software Development Firms in the US

4,118 Companies-Rankings updated: October 19, 2026

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 × Sort by: Number of Reviews ×
  • Design. Develop. Deploy.

    Design. Develop. Deploy.

    DEV.co builds custom software, web and mobile applications, SaaS platforms, and AI systems for companies that have outgrown the tools they can buy. Senior US engineers, a fixed scope and price agreed before the first commit, and a codebase that belongs to you on day one...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • AI Development
    • Web Design
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    250 - 499
    Minimal Budget
    $1,000 - $10,000
  • AI Product Studio And Implementation Partner

    AI Product Studio And Implementation Partner

    NodeStar is an AI product studio and implementation partner. We design, build and deploy enterprise AI applications for finance, education and wealth management. We also install fixed-scope AI systems for service businesses: an AI receptionist, lost-lead recovery, AI search visibility work and commerce...

    Top Services:

    • AI Development
    • Software Development
    • SEO
    • Mobile App Development
    • Business Consulting
    • Show more
    Location
    Arlington, Virginia
    Number of Employees
    Under 49
    Average Hourly Rate
    $175/hr
    Minimal Budget
    $1,000 - $10,000
  • KITSS helps businesses grow with smarter digital marketing and AI-powered automation. From SEO, social media, paid marketing, and content to email marketing and lead automation, KITSS delivers practical solutions designed to improve online visibility, generate leads, and drive sustainable business growth...

    Top Services:

    • Graphic Design
    • Branding
    • Digital Strategy
    • Web Development
    • Digital Marketing
    • Show more
    Location
    Trumbull, Connecticut
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • The Agency for Manufacturers Looking for Real business growth .

    The Agency for Manufacturers Looking for Real business growth .

    For over 30 years, Dynamic Digital has worked with B2B manufacturers and businesses. We provide custom websites, online SEO / AEO / and GEO visibility, scalable application development, and software integration services designed to help your organization grow. Eliminate manual work, cut costs, and scale your...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • UI/UX Design
    • Show more
    Location
    Willow Grove, Pennsylvania
    Number of Employees
    Under 49
    Average Hourly Rate
    $135/hr
    Minimal Budget
    $1,000 - $10,000
  • Clean, structured web data, delivered on your schedule.

    Clean, structured web data, delivered on your schedule.

    AUTOScraping helps companies get data that lives on other people's websites, cleanly and on a schedule that works for them. DataFactory builds and runs the scrapers, one-off projects or ongoing feeds. DataSquad goes the other way: we place senior scraping and data engineers inside a client's own team, so the...

    Top Services:

    • Software Development
    • AI Development
    • Big Data Analytics
    • Staff Augmentation
    • IT Services
    • Show more
    Location
    Dover, Delaware
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
  • Production AI for distributors, manufacturers, and specialty contractors.

    Production AI for distributors, manufacturers, and specialty contractors.

    Zyene brings production AI into the day-to-day operations of wholesale distributors, manufacturers and specialty contractors. We automate document intake, orders, RFQs, quotes, bids and knowledge search, connecting workflows to existing business systems and keeping people in control of decisions...

    Top Services:

    • AI Development
    • Software Development
    • ERP Consulting
    • CRM Consulting
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
  • Succeed Faster with Syberry.

    Succeed Faster with Syberry.

    Austin-based Syberry builds custom software that companies own outright, replacing costly SaaS tools, modernizing legacy systems, and putting AI to work with people firmly in control. Since 2011, our team has shipped 300+ solutions for startups and Fortune 200 brands. A distinctive delivery process, run on...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Cloud Consulting
    • IoT
    • Show more
    Location
    Austin, Texas
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
  • Software, AI and automation your business runs on.

    Software, AI and automation your business runs on.

    Eltherion builds the software and AI that growing companies run on. From Miami, our team designs custom web apps, customer portals, SaaS platforms and mobile apps, then automates the busywork around them with AI agents that qualify leads, process documents and keep CRMs current. We work around the clock for...

    Top Services:

    • Software Development
    • AI Development
    • Mobile App Development
    • Web Development
    • Show more
    Location
    Miami, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    Under $1,000
  • Websites, hosting and custom software from Longview, Texas since 1998

    Websites, hosting and custom software from Longview, Texas since 1998

    Inhouse Associates is a small Longview, Texas team that has built and hosted websites since 1998. We design and develop custom Umbraco CMS sites that our clients' own staff can edit, write the web applications behind them, and host everything on servers we manage ourselves. Recent work includes Longview...

    Top Services:

    • Web Design
    • Web Development
    • Software Development
    • SEO
    • IT Services
    • Show more
    Location
    Longview, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $125/hr
    Minimal Budget
    $1,000 - $10,000
  • All-in-one automotive eCommerce platform, built and set up for you.

    All-in-one automotive eCommerce platform, built and set up for you.

    X-Cart designs and builds eCommerce stores for aftermarket auto parts sellers on its own platform. Our team handles the store design, Year/Make/Model and VIN fitment, ACES/PIES catalog upload, distributor integrations and migration from your current platform, then supports the store after launch. One monthly...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • Software Development
    • Show more
    Location
    Athens, Georgia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • We build your app, then get it real users

    We build your app, then get it real users

    ApsteQ is an app development and app marketing company. Since 2015 we have built and grown apps for 300+ clients and driven 52M+ installs. One team builds the iOS and Android app with in-house engineers, then runs the launch: App Store Optimization, Apple Search Ads, Google App Campaigns, Meta and retention...

    Top Services:

    • Mobile App Development
    • AI Development
    • Digital Marketing
    • PPC
    • Social Media Marketing
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • You Grow We Go

    You Grow We Go

    Adscular Agency helps businesses improve their online visibility, attract potential customers, and build more effective digital growth strategies. Our services include performance marketing, Google Ads, Meta Ads, SEO, paid advertising, lead generation, website development, and conversion rate optimization...

    Top Services:

    • Digital Services
    • Digital Strategy
    • Branding
    • Digital Marketing
    • SEO
    • Show more
    Location
    Austin, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
  • Know The Plan. See The Numbers. Then Decide.

    Know The Plan. See The Numbers. Then Decide.

    UClaim Solutions helps service businesses put AI and automation to work. We diagnose operational bottlenecks, connect existing tools, and build custom systems for customer communication, follow-up, and day-to-day workflows...

    Top Services:

    • AI Development
    • Software Development
    • CRM Consulting
    • Business Consulting
    • Web Development
    • Show more
    Location
    Spring, Texas
    Number of Employees
    Under 49
  • Custom Software Development Company For Modern Businesses

    Custom Software Development Company For Modern Businesses

    Lukor Technologies is a custom software development company helping businesses build secure, scalable digital solutions. We provide custom software, web development, mobile app development, AI development, and DevOps consulting services...

    Top Services:

    • Mobile App Development
    • Software Development
    • DevOps Consulting
    • Business Consulting
    • Web Development
    • Show more
    Location
    Dallas, Texas
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Engineering the Future of SaaS Development with Modern Solutions

    Engineering the Future of SaaS Development with Modern Solutions

    Valynx LLC is an elite, US-registered remote software studio delivering high-performance Next.js, React, TypeScript, Python, and advanced AI agent integrations. We build custom SaaS platforms, intelligent automation flows, and cinematic, high-end UI/UX website rebuilds—like our recent scroll-driven Next.js...

    Top Services:

    • Software Development
    • AI Development
    • Software Testing
    • Mobile App Development
    • Web Design
    • Show more
    Location
    Buffalo, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
  • Be the HIPAA-safe practice AI recommends

    Be the HIPAA-safe practice AI recommends

    When patients ask ChatGPT, Google, or Claude who to see, we make sure your practice is the answer. More recommendations, more booked appointments, more revenue, all on a website built for HIPAA...

    Top Services:

    • AEO
    • SEO
    • Web Design
    • Web Development
    • Reputation Management
    • Show more
    Location
    Phoenix, Arizona
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $1,000 - $10,000
  • AI infrastructure and digital transformation

    AI infrastructure and digital transformation

    Helixora Solutions builds practical AI systems and custom software around business workflows. The team delivers AI agents, voice and chat assistants, automation, computer vision, data platforms, and web applications, helping organizations connect their tools and improve day-to-day operations...

    Top Services:

    • AI Development
    • Software Development
    • Web Development
    Location
    Denver, Colorado
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    7 Projects Listed
  • AI Consultant for Small Businesses

    AI Consultant for Small Businesses

    AI Consultant for Small Businesses in Raleigh-Durham, NC. I find where AI pays in your business, build it in tools you own, and train your team. Services include a two-week AI Workflow Assessment, the AI Growth System for owner-led service businesses, team training, Fractional AI Officer advisory, and custom...

    Top Services:

    • AI Development
    • Business Consulting
    • Software Development
    • Digital Strategy
    • Show more
    Location
    Pittsboro, North Carolina
    Number of Employees
    Under 49

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
128,556+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
48%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
4,118

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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?