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
7,355 Companies-Rankings updated: September 10, 2026
We evaluate every agency on DesignRush for technical expertise, delivery quality, and verified feedback to help businesses find reliable software development services. Some listings may be paid.
We strive to become your go-to tech provider and help your business grow. Weve created an enjoyable work environment where our experience and knowledge find the best way to deliver quality. Its our commitment to work towards continuous personal, company, and community development...
We're based in New York and were named one of the top performing app dev agencies for startups by the GoodFirms. Check out some of the awesome work we did here https://bromin7.com...
We specialize in developing scalable solutions for all business sizes. We offer 360o digital transformation solutions & tech services, from concept to design, development to execution...
Delivered growth at any stage of the product lifecycle.
Delivered growth at any stage of the product lifecycle.
Vokal provides above market growth returns for investments on digital products and growth optimisation. We help companies create repeatable and sustainable growth metrics at any stage of the product lifecycle...
Idea Theorem is an award-winning design and development agency. Through our empathy-driven approach, we have crafted digital products that have positively impacted over 10 million users. Our mission is to shape the digital future by delivering exceptional experiences...
Empowering E-Commerce Growth With Shopify Expertise.
Empowering E-Commerce Growth With Shopify Expertise.
Since 2010, weve specialized in building high-performing, conversion-focused Shopify Plus websites and advanced email marketing solutions using Klaviyo. Our expert team is committed to creating engaging digital experiences that drive revenue and help businesses thrive...
Mobile App Devs Who Understand Business, Not Just Code
Mobile App Devs Who Understand Business, Not Just Code
Touchlane is a European mobile development studio that truly gets startups and SMBs. With 10+ years on the market, we turn ideas in fintech, health & fitness, and entertainment mobile development into secure, high-performing apps users love...
Intetics, established in 1995, is a prominent player in the IT software services domain. They offer a range of services, including Custom Software Development, Educational Software Development, Remote In-Sourcing®, and comprehensive digital technology solutions...
Codbel indicates substantial growth concerning the technology development cycle to release potential futuristic solutions instantaneously. Codbel brings sole solutions to enhance business profits. We offer smart-standing software solutions corresponding to business needs and customers' demands...
Ascendum is an award-winning global technology firm dedicated to delivering pioneering ideas and solutions that enrich our clients' customers experiences and business operations. Our clients come to us for new ideas and boundary-pushing solutions...
Bright Bright Great is a full-service creative strategy agency located in Chicago, IL focused on improving visual culture through creativity and functional problem solving...
Award WinnerRecipient of a Best Design Award for outstanding work.
Digital Product Agency delivering Consumer-grade UX Design for B2B & Enterprise.
Digital Product Agency delivering Consumer-grade UX Design for B2B & Enterprise.
EMERGE is a top-rated UX Design Agency and Digital Product Consultancy and a trusted partner for B2B leaders across technology, healthcare, and manufacturing sectors. We specialize in driving business growth by crafting elevated, engaging digital products and services...
Kohactive is a digital product studio that helps ambitious startups and enterprises build business-critical products that help them innovate and grow. Since 2008, we've built over 250 web and mobile applications for hundreds of clients. Our core services include custom software, custom web applications...
To lead in the design and development of the world’s most ambitious digital projects that transform our clients’ business, as a trusted partner in an open and collaborative way...
We Build Technology for Brand Marketers and Agencies
We Build Technology for Brand Marketers and Agencies
Oshyn partners with some of the world's best brands and creative agencies to create exceptional digital marketing solutions. By providing services, technology, and platforms, we enable creative talent to focus on what they do best: create amazing work...
For over two decades, our studio has been at the forefront of creativity and technical expertise. Since 2002, we have successfully provided top-tier, enterprise-grade solutions to address intricate business challenges for Fortune 500 companies across diverse industries such as industrial, healthcare...
Bringing businesses at the frontier of technology.
Bringing businesses at the frontier of technology.
White Cloak Technologies, Inc. is a custom software development company that specializes in app development. Amongst its award-winning projects are UnionBank Online, The Portal and Ayala Zing...
Accelerate Velocity With Elite Engineers and Agile Experts.
Accelerate Velocity With Elite Engineers and Agile Experts.
Distillery is a seasoned player in the field of nearshore software development, offering expertise and a robust process for building, scaling, and innovating technology solutions...
Driving Digital Impact, Powered by Motivational UX.
Driving Digital Impact, Powered by Motivational UX.
Smashing Ideas, founded in 1996, is a Seattle-based design and innovation agency partnering with Global 500 companies. With expertise in smart products and digital experiences, their unique Motivational UX process accelerates transformation and enhances user engagement...
Balti Virtual is a comprehensive studio dedicated to crafting extraordinary experiences in the realm of augmented reality (AR) and virtual reality (VR) for brands and agencies. Established in 2015, Balti Virtual has an impressive portfolio of clients, including prominent names like PayPal, HBO, Marvel, and...
Thumbmunkeys is an ISO-certified design and development company based in York, UK, building award-winning mobile and web apps for businesses, government bodies, and non-profits since 2012.
Our end-to-end services cover Android, iOS, and web app development from scratch to launch...
iteo is an international digital product studio founded in Poland. We offer business, technical and creative services to deliver digital products and experiences at scale. Our 12 years experience allows us to reveal the true digital potential of business models and drive digital transformation from within...
Momentum is a specialized healthcare software development company that builds scalable AI-powered solutions and mobile applications for healthcare organizations. Since 2016, we've delivered 100+ healthcare applications for startups, scale-ups, and healthcare providers across the US, UK, and Europe...
Very Big Things is a leading digital product agency, with a focus on digital transformation and disruption, that designs and develops digital experiences for startups and enterprise clients...
We provide tech talent, eliminating recruitment headaches and extra costs.
We provide tech talent, eliminating recruitment headaches and extra costs.
Smplfy unlocks expertise for business solutions through IT Staffing. Our specialization spans Talents on Demand, Dedicated Engineering Teams, High-End IT Consulting, and efficient IT Recruiting Services...
SolutionStream is a Utah based full service software development agency specializing in strategy, performance testing, design, and development services...
We Are a Software Development Company, Through and Through
We Are a Software Development Company, Through and Through
MorelandConnect takes pride in its consulting services across various sectors as a full-stack development business. Nothing is beyond the scope of possibility with our brilliant team of developers. We understand our clients' demands and can supply and lead them to the finest solution available...
T2O media is a Digital Media Agency founded in 2004, that designs and manages marketing and communication strategies with a results orientated approach (Paid, Owned, Earned Media, relying always on Technology). Currently has permanent offices in Europe, LATAM and US, where is the partner of major brands...
Quality Software Development – Our company helps partners develop, implement, and maintain successful digital products across all devices. We aim for long-term partnerships – potentially lifelong. This is a software house, where businesses find lasting opportunities and turnkey solutions...
Empowering businesses with intuitive software that grows as fast as your needs do.
Empowering businesses with intuitive software that grows as fast as your needs do.
Susco Solutions: Your growth-oriented .NET software partner. Specializing in intuitive solutions for mid-market enterprises. Collaboration and adaptability are our strengths...
Vog App Developers is an award-winning software design and development company. We build custom iOS & Android mobile apps, web applications, and firmware. Whether youre a start-up, or a large enterprise we have the talent and expertise to build you something amazing...
12 Years at the Forefront of Software & Data Engineering
12 Years at the Forefront of Software & Data Engineering
VITech provides R&D, software, and data engineering services to innovative startups. We specialize in system architecture consulting, Big Data Engineering, and Data Science. Since 2008 top healthcare brands have used our services to improve the lives of over 60 million people...
Swovo Development is a team of highly experienced product designers, software engineers, product managers, and entrepreneurs. They love to work on new and challenging projects that require thinking outside of the box...
TDF (The Development Factory) is a Los Angeles based product and technology consultancy that empowers companies to design, build, and deliver software more effectively. By upskilling teams, embedding expert interim product leadership, and offering seamless augmentation services, TDF enhances clients internal...
Future Platforms produces user-focused technical solutions for corporate clients. Our services include strategy, user experience, design, development and quality assurance. We have a strong focus on mobile, but work across the digital landscape designing and developing web and mobile apps, responsive...
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.
Service
Share of total demand
Web application development
40%
Mobile app development
30%
AI agent development
20%
Legacy system refactoring
10%
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
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:
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.
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