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

3 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 × Professional Services × $50,000 & Up ×Clear Filters
  • Leanware

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Boutique Software Development Company

    Leanware delivers exceptional custom software development firm services with mastery in AI-enhanced development, nearshore staff augmentation, and cost-efficient solutions. Our battle-tested teams ensure seamless integration and world-class quality, driving success across 30+ projects and 15+ industries...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Software Testing
    • Staff Augmentation
    • Show more
    Location
    Miami, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed

    Leanware Services

    • Software Development
    • Mobile App Development
    • AI Development
    • Software Testing
    • Staff Augmentation
    • Product Design
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • 2Moon Capital
    • BackupTyping
    • Blueback Global
    Data sourced from the agency's DesignRush profile

    Leanware Reviews & Testimonials

    • Julia Antoci
      Julia Antoci CEO at GloFlow
      5.0★

      AI Development Review from Julia Antoci

      Leanware built the mobile MVP of our AI fitness assistant for iOS and Android. It started with discovery workshops that sharpened the product vision and shaped an MVP roadmap prioritizing launch features while leaving room for expansions like avatars and real-time feedback. They developed a conversational AI engine with custom prompt and context engineering tailored to fitness conversations, one that keeps continuity across sessions, remembers user progress and preferences, and keeps health guidance within safety standards. On top of that they implemented photo-based food recognition, smart search that understands fitness intent, personalized recommendations, progress tracking with AI-generated insights and coaching suggestions, and gamified response formats that make AI answers easy to read, plus the scalable backend behind it all. Their consultation saved us an estimated 20 to 30 percent in costs by avoiding unnecessary complexity, and we launched a functional MVP across the app stores in under eight weeks, faster than planned. Project management was exceptional: clear timelines, on-schedule delivery, and proactive communication via Slack, with expert recommendations guiding decisions rather than every choice being pushed back to us. Their technical skill and creativity made the whole thing feel less like hiring a vendor and more like building with a co-founder.

    • Anonymous
      Anonymous Engineer at E-commerce Company
      4.8★

      Software Development Review from Anonymous

      Leanware delivered two significant projects for our e-commerce platform along with a steady stream of smaller fixes and enhancements. They built a new employee management page in our back office so our customers can create accounts, set permissions, and link employees to entities on their own, and when our mobile app's chat functionality needed replicating in the back office, they built a custom chat and messaging React library from scratch, integrated seamlessly with our design system and existing bespoke solution. Along the way they worked comfortably across Next.js, React, React Native, Apollo, GraphQL, and Hasura, and adapted to our implicit conventions. We ran week-long SCRUM sprints with check-ins three times a week, and they consistently hit the sprint goals on time; even when we needed hard pivots mid-sprint, they adapted without losing pace. As the engagement progressed they increasingly took the lead, asking well-informed questions and offering suggestions on code, product, and design that genuinely enriched the outcomes. What impressed us most was how swiftly they onboarded: given incomplete product descriptions, they asked the right questions to fill the gaps and picked up our undocumented code patterns without getting stuck on minor details. It felt like one cohesive team working toward shared objectives, free of the friction that usually comes with a third party

    • Anonymous
      Anonymous Co-Founder & CEO at Anonymous
      5.0★

      Mobile App Development Review from Anonymous

      Leanware has partnered with us since Q4 2023 on two cloud-based mobile apps for iOS and Android, one built in Flutter and one in React Native, handling development on both and the UI/UX design on one. For one project they staffed a team of five mid-level developers, a senior developer, an architect, and a UX designer available as needed. They also took over an app that was unstable and nowhere near production-ready and turned it into a stable, solid product I'm genuinely proud to show. Their processes leave nothing to chance and the code that comes out of them is excellent; they've been flexible and thorough throughout. They meet deadlines, keep their promises, and are careful about what they commit to. The whole team has been great, and Alvaro, their Technical Product Manager, deserves a special mention for being remarkable. I hired them because they were upfront about what they could and couldn't do, and that honesty, together with the tremendous quality of their work, is what separates them from other providers. Both are getting harder to find these days.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Zoho consulting, development and integration services for operationally complex organizations.

    CodeStringers helps growth-stage and small-to-mid-market companies implement, integrate, and operate Zoho-centered digital enablement solutions by combining senior executive consulting, cost-effective delivery teams, and custom software capabilities when needed...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • CRM Consulting
    • ERP Consulting
    • Show more
    Location
    Santa Cruz, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up

    CodeStringers Services

    • Software Development
    • AI Development
    • Web Development
    • CRM Consulting
    • ERP Consulting
    • Managed Services
    • Mobile App Development
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • TĂĽbr Storage
    • Addiction Rep
    • True Pet Kitchens
    • MasterControl
    • Tonal
    • MindTRAK Golf
    • Mido Play
    • Inboard Technology
    • SiteOne Services
    • KnowledgeDesk
    Data sourced from the agency's DesignRush profile

    CodeStringers Reviews & Testimonials

    • Lori Feld Oakley
      Lori Feld Oakley Executive VP at MasterControl
      5.0★

      Software Development Review from Lori Feld Oakley

      Our Services organization is scaling quickly and we urgently needed a custom software application to automate our workflows, without breaking our annual budget. CodeStringers was the perfect fit, supporting us from ideation through go-live and everything in between. They innovated, hit their deadlines and released an amazingly high quality application that decreases our internal costs and improves our reputation with our customers. It would not have happened without CodeStringers.

    • Christian Schraga
      Christian Schraga CEO at Tabula Learning
      4.8★

      Enterprise Review from Christian Schraga

      CodeStringers is the perfect outsourcer to call If you have a solid software business idea but don’t know exactly how to bring it to life. They have both a top-notch development team as well as an executive staff with expertise in marketing, finance, and general business acumen. So they can not only build a product for you but they can make sure that the product you want to build is likely to succeed in the marketplace.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • An independent creative agency in Washington DC

    This January is an indie creative agency building brands that have to earn attention instead of buying it. Our design, creative, production and media buying teams sit side by side. Clients include Lufthansa Group, GRVTY, the International Spy Museum and ZURU...

    Top Services:

    • Advertising
    • Creative Services
    • Branding
    • Web Design
    • Social Media Marketing
    • Show more
    Location
    Washington DC, Washington DC
    Number of Employees
    Under 49
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    2 Projects Listed

    This January Services

    • Advertising
    • Creative Services
    • Branding
    • Web Design
    • Social Media Marketing
    • Media Buying
    • WordPress Website Design
    • Design Services
    • Software Development
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Lufthansa Group
    • The Spy Museum
    • Profound AI
    • Relay Financial
    • Swiss Airlines
    Data sourced from the agency's DesignRush profile

    This January Reviews & Testimonials

    • Patrick White
      Patrick White Review from Google
      5.0★

      Patrick White's Review Sourced from Google

      They just handled our branding for a gonzo popcorn brand and they were amazing at meeting us at our weird nexus of polished aesthetic, gross out humor and weirdo messaging. They are as cool as they are funny.

    • Kevin Schwartz
      Kevin Schwartz Review from Google
      5.0★

      Kevin Schwartz's Review Sourced from Google

      This January starts where most other agencies finish! Their combination of highly innovative thinking and individual attention to each client makes them the go to agency in DC and beyond! The best!

    • Rob Shore
      Rob Shore Review from Google
      5.0★

      Rob Shore's Review Sourced from Google

      Probably the top ad agency in DC and rival the bigger established brands out of NY.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

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
128,634+
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
3

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.

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?