Choosing the right software engineering firm is the difference between launching a market-ready platform and incurring compounding technical debt. Browse our directory to shortlist top software development companies evaluated on code quality, cross-platform capabilities, and industry expertise.

List of Custom Software Development Companies

10,872 Companies-Rankings updated: November 05, 2026
Expertise

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.

  • Build your energy intelligence.

    Software meets services for the building sector providing greentech solutions...

    Top Services:

    • Software Development
    Location
    Denver, Colorado
    Number of Employees
    Under 49
  • Powering Smarter Energy Decisions.

    Our cloud software services are powering the energy transformation by enabling the greentech sloutions...

    Top Services:

    • Software Development
    Location
    Bellevue, Washington
    Number of Employees
    500 - 999
  • EnergyHub is a dynamic software technology company based in New York, NY.

    EnergyHub is a dynamic software technology company dealing with greentech indsutry...

    Top Services:

    • Software Development
    Location
    New York City, New York
    Number of Employees
    100 - 249
  • Delivering Smart Hardware and Software Solutions

    Delivering smart hardware and software solutions in greentech Industry...

    Top Services:

    • Software Development
    Location
    Campbell, California
    Number of Employees
    100 - 249
  • ONYX Insight is an award-winning global, renewable, technology business.

    ONYX Insight is an award-winning global, renewable, greentech technology business...

    Top Services:

    • Software Development
    Location
    Boulder, Colorado
    Number of Employees
    100 - 249
  • Leveraging real-world data and artificial intelligence,

    Providing Greentech sloutions...

    Top Services:

    • Software Development
    Location
    New York City, New York
    Number of Employees
    100 - 249
  • Cutting-edge methane management and advanced CEM for RSG.

    Project Canary is an environmental data, Greentech and software company...

    Top Services:

    • Software Development
    Location
    Denver, Colorado
    Number of Employees
    100 - 249
  • Cloud-based solutions that make solid waste program management easy.

    Provides Cloud-based greentech solutions...

    Top Services:

    • Software Development
    Location
    Truckee, California
    Number of Employees
    50 - 99
  • Make Real Estate Data Actionable

    Nantum AI is a New York-based software platform company specialising in real-estate operations technology. The company offers a unified system that uses machine learning and artificial intelligence to automate building operations, drive energy savings, reduce carbon emissions and streamline indoor...

    Top Services:

    • Software Development
    Location
    New York City, New York
    Number of Employees
    50 - 99
  • We bridge the gaps in the global supply chain to make it more efficient, resilient, and sustainable.

    We develop greentech technology to fill the gaps in it...

    Top Services:

    • Software Development
    Location
    New York City, New York
    Number of Employees
    50 - 99
  • Empowering trust in AG lending.

    Agcor is the proven suite of software tools purpose-built to empower greentech...

    Top Services:

    • Software Development
    Location
    Denver, Colorado
    Number of Employees
    Under 49
  • Your Business's Salesforce Partner

    With years of experience implementing Salesforce across numerous industries, we have become a recognized Salesforce Gold Consulting Partner. Complex, multi-cloud and multi-platform solutions are our areas of expertise...

    Top Services:

    • Software Development
    Location
    Plano, Texas
    Number of Employees
    100 - 249
    Minimal Budget
    $1,000 - $10,000
  • Turning Ideas Into Brilliant Software Solutions

    Codeclusive is a software development agency known for its rapid development, efficient code, and collaborative approach. With expertise in Python, .Net, PHP Laravel, and Clojure, it specializes in crafting innovative solutions tailored to client needs. The agency offers cutting-edge technology and bespoke...

    Top Services:

    • Software Development
    Location
    Łódź, Poland
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
  • More than 30 years in Software development.

    Have faith in the commercial software development competence that dates back to the 1980s and continues on into the present day. The team receives the direction necessary to see projects through to completion at the highest possible level of quality. The price of quality is higher, but trying to save money by...

    Top Services:

    • Software Development
    Location
    Pymble, Australia
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
  • Exponent Facteur de votre succès

    The website for Geneva-based web agency EXPONENT is a modern and user-friendly digital environment that highlights the agency's professional services. With an attractive portfolio demonstrating completed projects for various clients, as well as an in-depth section showcasing services such as website design...

    Top Services:

    • Software Development
    Location
    Geneva, Switzerland
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Smart Software. Better Business.

    Ready to maximize your company's efficiency through software development services? Efficience helps your corporation with its software needs...

    Top Services:

    • Software Development
    Location
    Fort Lauderdale, Florida
    Number of Employees
    Under 49
  • Unpacking dreams and drawing a map to get you there.

    Software Development to grow your business. Well shoot you straight. If we feel you don't need a service, we'll tell you...

    Top Services:

    • Software Development
    Location
    Knoxville, Tennessee
    Number of Employees
    Under 49
  • Preparing Brands for the Digital World

    Company A is a custom application development company that transforms brands and organizations for the digital world. We provide world-class enterprise solutions, system integration services and application maintenance and support for legacy applications...

    Top Services:

    • Software Development
    Location
    San Clemente, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $50,000 & Up
  • Next Level Software Development

    Innatos Systems Group specializes in software development for businesses, making your operations more efficient and competitive. Our excellent specialists offer solutions, development and advice, ensuring your business is ready for growth...

    Top Services:

    • Software Development
    Location
    Monterrey, Mexico
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
  • Esedor creates digital products that allow people to do things differently.

    Esedor creates digital products that allow people to do things differently...

    Top Services:

    • Software Development
    Location
    Lima, Peru
    Number of Employees
    Under 49
  • Full-cycle software development company

    Since 2013, we have been a software development company. We are a group of more than 140 individuals who are utilizing the Silesian University of Technology's business and academic expertise. We apply our knowledge and experience to every project, ensuring the success of every task we undertake...

    Top Services:

    • Software Development
    Location
    Gliwice, Poland
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
  • Technology partner for your business

    We are a technology startup that was built on the tenets of inclusion, diversity, and training, and we are run by experts with significant track records in leading local technology projects...

    Top Services:

    • Software Development
    Location
    Buenos Aires, Argentina
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • Healthcare-Focused Software Development Company

    We have designed and built apps for patients that help with chronic pain management, remote cardiac rehab, remote patient monitoring, lifestyle modification and behavior change, and other crucial aspects of care through close collaboration with healthcare organizations, hospital systems, and academic...

    Top Services:

    • Software Development
    Location
    Minneapolis, Minnesota
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $25,000 - $50,000
  • Expert Team of Digital Transformation Leaders

    We have the privilege of collaborating with the top businesses in the world on cutting-edge transformational technologies thanks to our partnership with numerous Cloud service providers...

    Top Services:

    • Software Development
    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $50,000 & Up
  • Developing innovative technological solutions

    Infaloom ignites innovative software projects. Partnering with clients to craft bespoke solutions that address their most critical needs - we grant access to the latest technologies and strategies for success in a rapidly evolving digital world...

    Top Services:

    • Software Development
    Location
    Belgrade, Serbia
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $50,000 & Up
  • Operating with focus and tenacity

    Net PC is a go-to IT partner for global enterprises and Forbes 500 companies, who trust them to deliver complex projects. With over 19 years of experience in developing meaningful systems, there's no project too difficult for the experienced team - self proclaimed 'IT Navy Seals'. Their hard work pays off;...

    Top Services:

    • Software Development
    Location
    Gdansk, Poland
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
  • We pride ourselves on delivering high-quality solutions that meet the unique needs of our clients.

    Techdroid Inc. is a Canadian software company founded by a team of experienced professionals with over 12 years of expertise in the industry. Our focus is on delivering cutting-edge solutions in mobility, website development, branding, robotics, and AI. We pride ourselves on staying ahead of the curve in...

    Top Services:

    • Software Development
    Location
    Toronto, Canada
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Custom-Made Software Dev Company

    GRSP Tech is a group of experts who can handle your software problems while remaining as close to your team as you require...

    Top Services:

    • Software Development
    Location
    Atlanta, Georgia
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $10,000 - $25,000
  • Developing Web & Mobile Apps

    We want to produce high-quality software with the newest stack and tools. We are an organization with a strong work culture and a passion for sports and Java, as well as fullstack (DevOps-backend-frontend) services...

    Top Services:

    • Software Development
    Location
    Wroclaw, Poland
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
  • Low/No-code Expert Teams

    The leading authority on no/low code solutions for big businesses with intricate compliance and security policies are a standard at code.store...

    Top Services:

    • Software Development
    Location
    Paris, France
    Number of Employees
    100 - 249
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
  • Solving complex problems with modern technology

    W16 Software House specializes in complex software projects, mobile and web apps and system integrations. Their goal is to help businesses thrive with modern technology and effective solutions...

    Top Services:

    • Software Development
    Location
    Florianópolis, Brazil
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
  • Software Development Experts

    For business clients, NewRedo creates custom software solutions and offers knowledgeable IT consultants. We cover every facet of IT delivery, starting with design and continuing with live operation and support...

    Top Services:

    • Software Development
    Location
    Leeds, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
  • Efficient design, engineering and product management

    Redbee Studios is a collaborative team of designers, engineers and product managers who use design and technology to solve complex business challenges...

    Top Services:

    • Software Development
    Location
    Buenos Aires, Argentina
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $50,000 & Up
  • 3D Animation & Software Dev

    We are MOVISIO, a Czech technology company with almost 20 years of experience in interactive visualizations, 3D animations, and software development...

    Top Services:

    • Software Development
    Location
    Prague, Czech Republic
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
  • Partnering for Growth and Success

    Greppy is a company dedicated to helping startups and businesses grow and scale by providing expert tech team building services. Their unique approach, #partnersourcing, gives you access to a predictable pricing model, top-notch tech skills, a great company culture, unrestricted team access, and a full...

    Top Services:

    • Software Development
    Location
    Cluj-Napoca, Romania
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
  • We build your software. We make you future proof

    Based on the belief that software should follow your business processes rather than the other way around, 4each specialises in outsourcing software development projects. Traditional ERP also has its limitations. In response, we are here. with an established track record in creating custom software for (large...

    Top Services:

    • Software Development
    Location
    Aarschot, Belgium
    Number of Employees
    Under 49
  • Developing software solutions for a rapidly evolving world.

    StepInsight is a global software development company with niche expertise and a focus on data and the latest technologies. Since 2016, we have been helping companies achieve their goals with impactful, industry-specific software solutions. We are proud to earn the trust of world-class startups and Fortune 500...

    Top Services:

    • Software Development
    Location
    Sydney, Australia
    Number of Employees
    250 - 499
  • Creation of business applications and systems.

    For more than 15 years, Hardcode has served the application and software development industries. As consultants in server infrastructure (Cloud and OnPremise), databases, user applications, and analytics, we have experience in developing end-to-end projects...

    Top Services:

    • Software Development
    Location
    Sao Paulo, Brazil
    Number of Employees
    Under 49
  • Making real-money gaming more relevant and accessible to the world

    Our mission is to make real-money gaming more relevant and accessible to players. We are are an exceptional team of consultants, technologists, and designers with headquarters in Ann Arbor, Michigan...

    Top Services:

    • Software Development
    Location
    Ann Arbor, Michigan
    Number of Employees
    Under 49
  • The Team to Trust

    Traust is a reputable IT consulting and custom software development company that has been assisting clients in enhancing their business operations since 2001. Our mission is to facilitate the implementation and integration of technology that improves efficiency, productivity and profitability for...

    Top Services:

    • Software Development
    Location
    Minneapolis, Minnesota
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $25,000 - $50,000
  • Building Robust Software

    We are a software development and consulting firm that serves clients across various industries in Minnesota and the broader Midwest region. Our primary focus is assisting prominent industrial manufacturing and industrial services companies in outsourcing their technical support...

    Top Services:

    • Software Development
    Location
    St. Paul, Minnesota
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $10,000 - $25,000
  • Time to Thrive

    Nerdery is a digital business consultancy that operates at the forefront of strategy, design and technology, helping clients succeed. Going beyond traditional consulting, consider us your allies in your digital journey...

    Top Services:

    • Software Development
    Location
    Edina, Minnesota
    Number of Employees
    500 - 999
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $50,000 & Up
  • Custom Software Your Business Deserves

    In 2012, SRG embarked on a quest to explore alternative near-shore sources of primary software development talent. Our goal was to establish a world-class technical capability that combines cultural and communication symbiosis with our US-based customers. We were committed to delivering excellence in software...

    Top Services:

    • Software Development
    Location
    St. Paul, Minnesota
    Number of Employees
    Under 49
  • Realize Your Full Potential

    99 Technologies offers tech-driven solutions aimed at fostering business growth and success. Our comprehensive range of expertise includes software development, marketing, talent acquisition and eCommerce...

    Top Services:

    • Software Development
    Location
    Eagan, Minnesota
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • We Solve Complex Problems

    Bitwise's core offerings revolve around project-based services including custom software design & development, API strategy and design, cloud expertise, IT project/program management and Agile leadership...

    Top Services:

    • Software Development
    Location
    St. Paul, Minnesota
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $10,000 - $25,000
  • Software that promises results

    DHx is a customer-focused software services and integration firm dedicated to delivering impactful business results and exceptional customer service. Our extensive range of software solutions and managed services is designed to provide our customers with a customer-centric approach, expanded options, high...

    Top Services:

    • Software Development
    Location
    Scottsdale, Arizona
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000
  • Ignite Transformation with Us

    CipherSol's team of creative technologists is dedicated to driving business transformations through the development of complex web solutions and native mobile applications...

    Top Services:

    • Software Development
    Location
    Riyadh, Saudi Arabia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • Romania's no 1 software contractor

    Bytex Group has been operating in the software contracting industry since 2015, specializing in team augmentation models. Our primary focus is to serve our customers by providing highly skilled technical engineers in various areas including UX, frontend, backend, DevOps, mobile, QA automation, tech...

    Top Services:

    • Software Development
    Location
    Iași, Romania
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
  • Revolutionizing Software Development

    Based in San Francisco, California, SPAN is a leading software solution and product development firm. Our team consists of industry veterans and talented developers who collaborate to strategize, design and develop software solutions for various clients, from startups to global brands. We provide designing...

    Top Services:

    • Software Development
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $199/hr
    Minimal Budget
    $50,000 & Up
  • Your Salesforce Partner

    CaseNine specializes in providing CPQ (Configure, Price, Quote) solutions on the Salesforce Industries CPQ platform, catering to businesses in the energy and telecom sectors...

    Top Services:

    • Software Development
    Location
    Amersfoort, Netherlands
    Number of Employees
    Under 49

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Software Development Companies FAQs

What are the most requested services of custom software development firms?

The most requested services from custom software development firms are almost entirely AI-based products, delivered primarily through web application development, mobile development, AI agent development, and legacy system refactoring. UX/UI design, cloud infrastructure, DevOps, and QA automation are typically not sold as standalone services; instead, they are embedded within each of these project types.

As reported by Diffco, year-over-year trends show a prevailing shift: AI agent development has grown from a niche request into a significant share of overall volume, while demand for legacy system refactoring continues to rise as clients seek to prepare their existing systems to support AI capabilities.

ServiceShare of total demand
Web application development40%
Mobile app development30%
AI agent development20%
Legacy system refactoring10%

How much does a software development company charge for its services?

Software development services typically cost $50,000 for MVPs to $2 million+ for enterprise software. US developers generally charge $120-$200/hour, while developers in Europe and Asia charge around $25-$150/hour.

How do I determine if a global company is the right size for my project?

To determine if a global software development agency is the right size for your project, match project complexity and scale to company capacity.

Choose a large/global agency with 1000+ staff, if your project:

  • Is complex or enterprise-grade, includes multiple software solutions, integrations, and compliance
  • Requires multiple roles in parallel (project management, UX/UI design, backend, quality assurance (QA), DevOps)
  • Needs 24/7 support, multi-time-zone delivery, or long-term maintenance

Large software development companies reduce delivery risk for complex programs but typically charge higher rates and use more structured processes.

Choose a small or mid-size agency with 10-200 staff if your project:

  • Is an MVP or mid-scale build
  • Requires speed, flexibility, and direct access to senior talent
  • Has a tighter budget and well-defined scope

Who owns the Intellectual Property (IP) and source code at the end of the project?

In most software development projects, the client owns the Intellectual Property (IP) and source code upon completion of the engagement, unless the contract explicitly states otherwise. Standard practice dictates that the ownership of the source code, documentation, design elements, and custom deliverables belongs to the client upon full payment. Contracts typically use "work made for hire" or an IP assignment clause to formalize this. 

Third-party or open-source components, however, are not owned by the client. Instead, they are used under their respective licenses. Some agencies retain ownership of pre-existing frameworks or reusable tools and grant the client a license to use them. You should also know that IP ownership is not automatic. To avoid disputes, ensure the contract clearly states full IP and source-code ownership transfers to you upon payment, with no usage limitations.

What tools and frameworks do software developers use?

They use various tools and frameworks, depending on the type of digital product they’re building. But the most common include: 

  • Full-stack JavaScript: MERN, MEAN, Jamstack (ex, Next.js)
  • Backend: Java-Spring, Python, Django, Ruby on Rails, LAMP
  • UI and Cross-Platform Development: React, Angular, Vue, Qt
  • Languages: JavaScript, TypeScript, Python, Kotlin 
  • AI and Data-Driven Development: Python, Hugging Face, LangChain, Apache Spark, Kafka, Kubeflow, Lite, ONNX, Replit
  • QA and Testing: Selenium, Cypress, Jenkins, GitLab, JMeter, OWASP ZAP, Testim, Mabl

What are the best software development companies in 2026?

What questions should I ask before hiring a software development company?

Before hiring a software development company, ask:

 

  • Have you built similar software before?
  • Which technologies will you use?
  • Who will work on my project?
  • What is included in the scope?
  • How long will development take?
  • How do you handle testing and security?
  • Do you provide support after launch?

How do I reduce the risk of hiring the wrong software development company?

Check the company’s exit terms and review cadence before comparing prices. Short notice periods and frequent demos give you more opportunities to spot problems and change direction early. For example, Designli uses biweekly demos, offers a refundable first 14 days, and allows clients to cancel with 30 days’ notice.