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This list includes the top Custom Software Development firms. All firms are vetted so you can trust the agency you hire. We check if each firm is competent in their field, able to produce results, reliable & trustworthy, and well-equipped for long-term potential. To get started, you can click on any company and contact them directly. Software Development firms design, develop and implement software applications to meet specific business needs of clients. They have expertise in various programming languages and platforms, and they work with clients to understand their requirements and develop custom software solutions to meet those needs.

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MeanPug

2017

11-25

50+

New York City, New York

Vetted & Verified

Recommended

MeanPug Digital provides award-winning marketing to ambitious law firms. We specialize in design and branding, web development, SEO, digital advertising, legal content implementation, PR, CRM integration, custom software development, traditional media advertising, and strategic consulting for firms that want to challenge the status quo.

Our MeanPug team created and maintain a great website for our law firm. Their team of professionals deliver remarkable content, effective execution of our marketing plan and provide clear monthly reporting.

The team at MeanPug just gets it. I trust them with all elements of digital marketing for law firms and highly recommend them to other legal marketers looking for proactive recommendations, responsive communication, and measurable results.

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Brainhub

2015

76-250

100+

Gliwice, Poland

Vetted & Verified

Recommended

Brainhub is a software consultancy that delivers scalable software solutions that drive business impact. Since 2015, we’ve specialized in React, Node.js, .NET, and AWS, enabling us to tackle specific challenges and meet our clients' unique needs. Trusted by renowned organizations like PwC, Credit Suisse, and National Geographic, our mission is software delivery excellence.

The skill level of their developers, designers, and business analysts has been very impressive.

We could trust them and relied on their recommendations.

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Lunarbyte

2019

1-10

25+

Seattle, Washington

Vetted & Verified

Recommended

We are a team of passionate, driven and talented software developers based in Seattle and the Pacific Northwest. We work with startups, marketing agencies and enterprise companies to craft and launch big ideas.

I cannot rave enough about the quality of work, level of communication, technical thought leadership, and overall customer care we got from the Lunarbyte team. They are responsive and helped us to successfully launch!

The Lunarbyte team is extremely detailed oriented when it comes to planning, testing, and implementing software solutions. They serve as more than just a software development firm, but rather an experienced CTO to help your business.

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Redberry

2014

76-250

50+

Tbilisi, Georgia

Vetted & Verified

Recommended

We are a 100+ award-winning, official Vue and Laravel partner software design, development, and creative growth agency in Tbilisi, Georgia. Founded in 2014, we are now an ever-growing team of 200 professionals, including UX/UI designers, DevOps engineers, project managers, scrum masters, copywriters, growth hackers, and some of the region’s top teams of Laravel and Vue developers. We've worked with local and international industry leaders like the Bank of Georgia, KFC, Wolt, Zara, Aldagi, M2 Real Estate, Elit Electronics, and others.

Whenever they deliver a new component, it looks fantastic and works perfectly.

Redberry is not a typical agency, and they are also the best and the largest in the region.

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Rocketech

2015

76-250

100+

Singapore, Singapore

Vetted & Verified

Recommended

By teaming up with Rocketech, you’ll get an experienced and dedicated CTO and a powerhouse of resources, liberating you from routine management. Meantime, you can focus solely on your business. Whether you are a young startup or an established enterprise — we’ve got all your technical needs with our full-cycle software development services, including project discovery, design, development, testing, and deployment.

I've been pleasantly surprised by how great their design work is.

They gave us a specific budget which allowed us to plan on our end.

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G360 Technologies

2023

26-100

50+

San Mateo, California

Vetted & Verified

Recommended

G360 Technologies helps companies develop custom software solutions while maximizing the opportunities created by the use of Cloud & AI. We take the time to understand our customers unique business challenges and are 100%-focused on business outcomes.

Professional and invested in generating good results. They meet deadlines and are responsive.

G360Technologies work has allowed us to scale when nearshore development is needed, which has made for greater efficiency and utilization.

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NineTwoThree Studio

2012

26-100

100+

Boston, Massachusetts

Vetted & Verified

Recommended

At NineTwoThree, we are a Product Design, Engineering & Marketing Studio that build AI, Web & Mobile Apps for Established Brands & Funded Startups. Partnering with industry leaders and visionary entrepreneurs we focus on profit producing applications that are a delight to use. We leverage this transformation through the power of agile methodology, design thinking and impeccable engineering to help our clients rapidly identify and validate new products.

The founding staff is a treasure trove of insight and everyone is incredibly strong at implementation.

NineTwoThree helped our SaaS company grow 634% in 12 Months.

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WyeWorks

2008

76-250

25+

Montevideo, Uruguay

Vetted & Verified

Recommended

We believe technology can change the world. That’s why we help companies translate their mission into great software, bridging the gap between idea and execution thus enabling them to succeed. We do this by leveraging your potential with our team of expert full-stack engineers who thrive in a collaborative environment of long-lasting relationships. Eager to make a positive impact, we have a proven track record of 15 years building high-quality software for small startups up to large organizations.

WyeWorks excels in the areas that many other companies lack: communication and planning.

They made our vision their own and achieved what seemed impossible a reality. I couldn't be happier for having them onboard.

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Confianz Global

2008

75-200

75+

Charlotte, North Carolina

Vetted & Verified

Recommended

We are a custom software development agency focused on mobile app development and ERP implementation.

They haven’t said no to us yet. Their customer service is excellent.

The deliverable was better than what we envisioned.

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Code Heroes

2011

1-20

50+

Brisbane, Australia

Vetted & Verified

Recommended

At Code Heroes, we help clients through the digital transformation journey by creating high-quality mobile, desktop, and web software solutions that are user-centred and enterprise-grade.

Code Heroes did a good job of meeting our requirements.

The app that Code Heroes developed has been a great success for us.

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WLCM App Studio

2011

21-74

100+

San Francisco, California

Vetted & Verified

Recommended

WLCM is a custom software design and development studio. A tight-knit and long-standing veteran team, we've built our reputation winning "best in class" recognition by Apple, “Best of Experience Design” by FastCo, and "Best in Business" by Inc.

I have worked with WLCM App Studio for two projects for my business.

It has been such an amazing experience to work on this project together.

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Avantsoft

2017

21-74

25+

Salvador, Brazil

Vetted & Verified

Recommended

Avantsoft helps companies focus on what they do best by taking care of developing and maintaining software products by offering turnkey engineering as a service solutions.

Incredible company, with great service, communication and quality in what they deliver!

Software is of quality, on time, and at fair prices! Great company.

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Savas Labs

2015

20-75

75+

Raleigh, North Carolina

Vetted & Verified

Recommended

We are a team of highly-skilled designers, developers, and consultants who build digital products that create meaningful impact. We have high coding standards, design with the user in mind, and above all are transparent in our collaboration both with our teammates and client partners. The combination of curiosity, drive, and respect make us a special collection of professionals.

Savas Labs is amazing at translating business issues into technology solutions.

Everything ran so smoothly and easily!

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Altoros

2001

76-250

50+

Pleasanton, California

Vetted & Verified

Recommended

Altoros is a leading technology consulting firm that specializes in custom software development, cloud automation, and artificial intelligence solutions. With a focus on innovation and quality, Altoros helps businesses accelerate digital transformation and optimize operations through tailored digital strategies. Leveraging expertise in various industries, the company delivers scalable solutions that drive efficiency and growth.

Altoros helped us streamline our processes, making our operations more efficient and saving us valuable time.

Their team provided clear insights that guided us through our project, ensuring we made informed decisions every step of the way.

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Niantic

2011

500+

100+

San Francisco, California

Vetted & Verified

Recommended

Niantic inspires people to explore the world, together. Our mission is to use emerging augmented reality (AR) technology to enrich our experiences as human beings in the physical world. Originally formed at Google in 2011, we are now an independent company with a strong group of investors including Nintendo, The Pokémon Company, and Alsop Louie Partners.

Unmatched AR/VR capabilities spanning decades.

Niantic's creativity in the [game application] was highly robust and effective.

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Zco

1989

500+

100+

Nashua, New Hampshire

Vetted & Verified

Recommended

Zco Corporation has been living and breathing software development since 1989. A tried-and-true vendor choice, Zco creates attractive, resilient products for its clients through proven and reliable methods. As one of the largest app development companies in the world.

Zco's app development team is top-notch. Professional and highly skilled, they brought our ideas to life seamlessly.

Impressed with Zco's custom software solutions. Their team navigated complex requirements with ease.

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Waverly Software

1992

21-74

100+

Palo Alto, California

Vetted & Verified

Recommended

Waverley is a software engineering company with over 400 technical specialists building distributed development teams in Bolivia, Mexico, Romania, Vietnam, and Ukraine to augment your internal team’s capabilities.

Waverley Software's custom software development services are efficient, reliable, and technically advanced.

Waverley Software's team excels in delivering customized and innovative software solutions.

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ScienceSoft

1989

500+

100+

McKinney, Texas

Vetted & Verified

Recommended

Founded in 1989, ScienceSoft is a provider of IT consulting and software development services. Having started as a small AI product company, we switched to IT services in 2002 and ever since we have helped non-IT organizations and software product companies improve business performance and quickly win new customers.

ScienceSoft's IT services and software development have been pivotal in our tech strategy.

Their IT solutions have bolstered our tech infrastructure, keeping us ahead in a dynamic industry.

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NTT DATA Analytics

1988

500+

100+

Koto City, Tokyo

Vetted & Verified

Recommended

NTT DATA is a top 10 global IT services provider, headquartered in Tokyo and operating in more than 50 countries.

NTT Data's IT services have transformed our technology landscape with innovative solutions.

NTT Data's innovative IT services have streamlined our processes, enhancing global communication and collaboration.

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MathWorks

1984

500+

100+

Natick, Massachusetts

Vetted & Verified

Recommended

MathWorks is the leading developer of mathematical computing software. Engineers and scientists worldwide rely on its products to accelerate the pace of discovery, innovation, and development. .

MathWorks' software tools have been essential in enabling complex computational tasks and data analysis for our projects.

Applied augmented and virtual reality technology to create immersive and interactive experiences for our clients and customers.

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Genesys

1990

500+

100+

Daly City, California

Vetted & Verified

Recommended

Every year, Genesys® orchestrates more than 70 billion remarkable customer experiences for organizations in more than 100 countries. Through the power of our cloud, digital and AI technologies.

Genesys' customer experience solutions have transformed our client interactions.

Genesys transforms our customer experiences, making every interaction more personalized and impactful.

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ELEKS

1991

500+

100+

Tallinn, Harju maakond

Vetted & Verified

Recommended

ELEKS, a trusted partner for guaranteed software engineering excellence, quality, and transparency every step of the way.

ELEKS' software development and consulting services have advanced our tech capabilities.

Eleks' software development solutions greatly enhanced our technological capabilities and efficiencies.

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Cognizant

1994

500+

100+

Teaneck, New Jersey

Vetted & Verified

Recommended

Cognizant (Nasdaq-100: CTSH) engineers modern businesses. We help our clients modernize technology, reimagine processes and transform experiences so they can stay ahead in our fast-changing world. Together, we’re improving everyday life.

Cognizant's IT services have been pivotal in our digital transformation.

Helped us navigate through our digital transformation journey with their deep expertise, making the process smooth and impactful for our business.

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BrickSimple

2001

21-74

50+

Doylestown, Pennsylvania

Vetted & Verified

Recommended

BrickSimple is a US-based and staffed software development company dedicated to the creation and delivery of innovative applications on desktop, web, and mobile platforms. We are passionate about software, programming, and information technology.

My workplace contracted BrickSimple to work on a long term project. They did great work.

Leaders in mobile device.

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