10 Best Custom Software Development Companies in the USA [2025]

Posted by Eyden Haze . on December 1, 2024

Are you looking for a top custom software development company in the United States? Here is the list of best custom software developers that provide full-cycle software development services in the USA. Today, if there is one thing that any business needs to run proficiently and smoothly, then it is customized software solutions. Although, not all software development companies are competent enough to develop highly efficient software solutions.

We have prepared a list of 10 best custom software development companies in the USA that can develop customized software products as per your business needs.

7L International

7L has been providing high quality Software development to meet every company’s needs and upscale any business since 2007. Among a range of technology services, 7L delivers fully integrated, end-to-end solutions, tailored to each client’s needs. From ideation to software delivery and ongoing support we provide a 360 degree client approach.

Our offices in New York, USA and London, UK, aim to support our international clientele, having proven track of large scale projects in many industries such as Banking, Smart Buildings, Hospitality and others.

7L materializes any technology idea and supports your business all the way.

Location: New York, NY
Contact: contact@7linternational.com / +1 646 564 5608
Focus: 50% Custom Software Development,  25% AR/VR Development,  25% Application Testing

Envion Software

Envion Software

For our startup clients, we work on every aspect of the product development and evolution from fleshing out an idea to delivering a finished product. When we extend an existing development team, our clients find our enthusiasm, cooperative spirit, our intelligence and experience a valuable asset. With many years under our belt, our team of project managers and engineers has what it takes to have our clients succeed.

Location: Boston
Contact: hello@envionsoftware.com
Focus: 40% BI & Big Data Consulting & SI, 40% Custom Software Development, 20% Mobile App Development

Intersog

Intersog is a Chicago-based software development and IT recruitment company that helps American and European businesses grow with innovative technologies and top talent. With 250+ IT experts located in the United States, Canada, Mexico, Israel, and Ukraine, Intersog has delivered more than 1,300 projects for Fortune 500 companies and growing startups across industries. We are proud of our professionalism and committed to delivering technology and staffing solutions to our clients across the globe.

Thanks to our nearshore and offshore delivery centers in Chicago, Vancouver, Guadalajara, Tel Aviv, Kyiv, and Odesa, we are capable of delivering custom software development and team placement services 3x faster, compared to what most IT service providers are offering.

Hire a dedicated development team in less than 4 weeks.
Build a custom software solution that meets your business needs.

Location: Chicago
Contact: contact@intersog.com / +1 833 468 3776
Focus: 40% Custom Software Development, 40% IT Staff Augmentation, 20% Artificial Intelligence

Orases

Orases

If you want more than just development, go for Orases. They work on your idea, enhance its value and scale brilliantly, like a CTO. Their utter focus is to cope up with the challenges put forth and works as a team to give life to incredible ideas and progressively became one of the most innovative software development companies in the world. Starting off with a powerful strategy, to perfecting the design, and thus developing its backbone, this development firm gives a product all that it needs from concept to coding to maintenance.

Location: Frederick, MD 
Contact: support@orases.com / +1 301 756 5527
Focus: 75% Custom Software Development, 15% Mobile App Development, 10% Web Development

Pell Software

Pell Software

Pell Software is a team of software engineers and architects that specialize in custom line-of-business software, custom business workflow software, web development, systems integrations, and digital marketing. Based in Denver (Colorado), Pell Software offers high quality development services at affordable prices. They have over a decade of experience in developing custom software for clients, keeping in close contact about goals and expectations, so clients get the results they need.

Pell’s transparent software development processes and established workflows enabled the team to successfully deliver over 100 projects to world-known brands.

Location: Denver, CO
Contact: contact@pellsoftware.com / +1 (720) 504-1112
Focus: 75% Custom Software Development, 15% E-Commerce Development, 10% Enterprise App Modernization

Sonatafy

Sonatafy

Sonatafy Technology is an established and diversified company preferred by clients for best-in-class Nearshore software development, software consulting services / expertise and high-level customer service. The Company is a leading provider of nearshore software developer’s services and experts in Cloud Solutions, Web and Mobile Applications, E-Commerce, Big Data, DevOps Practices, QA, IoT, and Machine Learning.

Sonatafy is the source for top tier, Affordable NEARSHORE talent that are proficient English-speaking , allowing better collaboration. The Company’s software service offerings are widely recognized as “best of breed”, targeting enterprises ranging from the SMB market (50+ employees) to Fortune 1000 firms.

Sonatafy is headquartered in the US with operational centers throughout Mexico and Latin America.

While Sonatafy’s services can successfully applied in any industry, the Company has achieved significant traction and domain expertise in several high-profile sectors including Healthcare, Financial Services, Software Services, and Consumer Products. Please note that these industries require a high level of domain expertise regarding security and development.

Sonatafy Technology has been among the first movers to build a solid infrastructure of resources in Latin America, that has been successfully working since 2015.

Location: Las Vegas, NV
Contact: steve.taplin@sonatafy.com / +1 619-736-7218
Focus: 50% Custom Software Development, 25%  Enterprise App Modernization, 25% Mobile App Development

Susco
Susco

Susco Lab is an all-rounder Custom Software Developer, providing enterprise solutions in addition to mobile apps. Why this is counted among the Best Custom Software Development Companies is because of the outstanding IT consulting services that come in with premium software development with global technology providers.

Location: Metairie, LA
Contact: info@suscosolutions.com / +1 (504) 264-9343
Focus: 40% Custom Software Development, 30% Mobile App Development, 30% Web Development

Webential

Webential

Based in California (USA), Webential is an award-winning custom software development company that is trusted by Fortune 500 companies. They use the latest technologies and methodologies to develop software and apps according to your needs with assured quality and competitive gains in the cost of developing these solutions. With veterans on their board, they have always delivered exceptional services to Startups, SMEs and large enterprises. Apart from producing high-quality code, they are also proactive consultants with strong feedback culture and a fully dedicated team.

Engage Webential to drastically boost your online presence and cut your tech costs to their promise of up to 60%.

Locations: Foster City, CA (USA) / Sydney, Australia / Ahmedabad, India
Contact: hello@webential.com / +1 424 777 1550
Focus: 40% Custom Software Development, 30% UX/UI Design, 30% Web Design

Softarex

Softarex

Softarex is a product and software development firm based in USA that helps startups and corporates build digital products and solve data science-related challenges. They’re a collective of second-time founders and tier-1 tech people (developers, data scientists, designers and project managers) coming from relevant organizations, such as IBM and Strongloop.

Location: Alexandria, VA
Contact: info@softarex.com / +1 703 836-18-60
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