Application development companies in the USA play a key role in building the digital tools we use every day – from mobile apps to enterprise software. These companies range from small development studios to large firms with global teams. They work with startups, government agencies, and Fortune 500 companies alike. Many focus on custom solutions, helping clients bring unique ideas to life or streamline their operations. Others specialize in areas like fintech, healthcare, or e-commerce.
Whether it’s a native iOS app, a cloud-based web platform, or a cross-platform solution, these companies provide the technical skills and project management expertise needed to deliver reliable, scalable apps. In this article, we’ll take a closer look at the US application development companies and what to keep in mind if you’re considering working with one of these firms.
1. LenGreo
LenGreo is a full-cycle B2B digital agency. The company specializes in SEO, lead generation, and web development, offering tailored strategies to clients across various industries, including biotech, SaaS, cybersecurity, Web3, logistics, and iGaming. LenGreo integrates inbound and outbound marketing approaches, combining SEO and content marketing with personalized outreach to enhance online presence and generate qualified leads.
In addition to its marketing services, LenGreo provides web development solutions, including the creation of APIs, custom web applications, hybrid mobile apps, web design, tech stack updates, and cloud-native systems. The company’s team works remotely across the globe, delivering projects that align with clients’ specific needs and objectives. LenGreo’s approach emphasizes understanding each client’s business to develop effective strategies that drive growth and return on investment.
Key Highlights:
- Offices in Amsterdam and Kyiv with an international client base
- Provides application development services in the USA
- Works in the dental SEO space
- Works with B2B, SaaS, biotech, and software development companies
- Combines marketing and tech expertise under one structure
- Offers technical consulting and implementation alongside marketing
Services:
- Application and Website Development
- SEO and Digital Marketing
- Lead Generation and Outreach
- Paid Ads and Campaign Management
- Demand Generation
- Social Media and Content Management
- Strategy Consulting and Market Research
Contact Information:
- Website: lengreo.com
- Contact Email: hi@lengreo.com
- Phone Number: +31 686 147 566
- LinkedIn: www.linkedin.com/company/lengreo
- Twitter: x.com/Lengreo
- Instagram: www.instagram.com/lengreo
2. LimeGreen Apps
LimeGreen Apps is a mobile and desktop application development company that offers a range of services including app design, strategy, support, porting, and maintenance. LimeGreen Apps serves clients in multiple industries such as travel, real estate, education, healthcare, food and restaurant, social networking, and e-commerce.
The company provides application development services in the USA, focusing on creating user-friendly and functional applications. Their offerings include native and cross-platform app development, utilizing technologies like iOS, Android, Flutter, React Native, Unity, and Progressive Web Apps (PWA). LimeGreen Apps also delivers desktop application solutions for Mac, Windows, and Linux operating systems, as well as game development services. Their approach encompasses the entire development lifecycle, from planning and design to development and launch.
Key Highlights:
- Specialization in mobile app development across multiple platforms
- Comprehensive services including design, development, and maintenance
- Experience with a diverse range of industries and clients
- Emphasis on user-friendly and visually appealing app designs
Services:
- Mobile App Development
- App Design
- App Strategy
- Support and Maintenance
- App Porting
Contact and Social Media Information:
- Website: limegreenapps.com
- Address: 200 Park Ave #1700, New York, NY 10166, United States
- Phone: +1 (877) 305-0317
- E-mail: info@limegreenapps.com
- LinkedIn: www.linkedin.com/company/limegreenapps
- Twitter: x.com/limegapps
- Facebook: www.facebook.com/Limegapps
- Instagram: www.instagram.com/limegapps
3. Nagarro
Nagarro is a global digital engineering company that specializes in designing and developing custom software solutions for various industries, including automotive, energy, telecommunications, banking, insurance, public administration, media, and gaming. The company delivers services that encompass the entire software development lifecycle.
In the United States, Nagarro offers application development and management services aimed at helping businesses optimize their processes and technology landscapes. Their services include application feasibility analysis, package-based implementations, IT service management consulting, portfolio rationalization, and operations services. Nagarro’s approach focuses on minimizing risk, maximizing benefits, and delivering projects with quality, on time, and within budget. They also provide application services assessment and consulting to align IT goals with business needs.
Key Highlights:
- Diverse industry expertise
- Focus on digital experience platforms for enhanced customer engagement
- Emphasis on SEO strategies to improve online visibility
Services:
- Digital Product Engineering
- Technology Consulting
- Digital Experience Platforms (DXPs)
- Customer Experience Solutions
- SEO Strategy Consultation
Contact and Social Media Information:
- Website: www.nagarro.com
- Address: 1155 Perimeter Center West, Suite 675, Atlanta, GA 30338, USA
- Phone: +1 678 694 1358
- E-mail: info.us@nagarro.com
- LinkedIn: www.linkedin.com/company/nagarro
- Twitter: x.com/nagarro
- Facebook: www.facebook.com/nagarroinc
- Instagram: www.instagram.com/lifeatnagarro
4. Vention
Vention is a software development company that provides custom software development services to startups and enterprises across various industries, including fintech, healthtech, edtech, proptech, e-commerce, and automotive. Vention’s team offers expertise in web, mobile, cloud, and advanced technologies such as artificial intelligence (AI), virtual reality (VR), and blockchain.
In the United States, Vention collaborates with application development companies, offering services that encompass the entire software development lifecycle. Their offerings include application development, application management, and application services assessment and consulting. Vention’s approach involves understanding clients’ visions, assembling teams with the necessary skills, and delivering projects that align with business objectives.
Key Highlights:
- Experience in software development
- Global presence
- Expertise in web development and CMS solutions
- Focus on SEO optimization through CMS platforms
Services:
- Web Development
- Mobile Development
- Custom Software Solutions
- Content Management Systems (CMS)
Contact and Social Media Information:
- Website: ventionteams.com
- Address: 575 Lexington Avenue, 14th Floor, New York, NY 10022
- Phone: +1 (718) 374-5043
- LinkedIn: www.linkedin.com/company/ventionteams
- Twitter: x.com/ventionteams
- Instagram: www.instagram.com/ventionteam
5. 3 Sided Cube
3 Sided Cube is a digital product and app development company. The company collaborates with various organizations, including those in the United States, to develop applications aimed at addressing global challenges. Their work spans sectors such as environmental conservation, humanitarian aid, and public health. Notable projects include developing a blood tracking app for the American Red Cross and a conservation app for Global Forest Watch.
In the United States, 3 Sided Cube provides application development services to a range of clients. Their services encompass mobile and web development, digital strategy, and user experience design. The company emphasizes collaboration with clients to create applications that are both functional and socially impactful.
Key Highlights:
- Focus on technology for social good
- Experience with global organizations
- Expertise in mobile and web development
- Emphasis on digital strategy
Services:
- Mobile App Development
- Web Development
- Digital Strategy
- AI Labs
Contact and Social Media Information:
- Website: 3sidedcube.com
- Address: 80 M Street SE, Washington, D.C 20003
- Phone: +44 (0)1202 611 612
- E-mail: holla@3sidedcube.com
- LinkedIn: www.linkedin.com/company/3-sided-cube
- Twitter: x.com/3sidedcube
- Facebook: www.facebook.com/3SIDEDCUBE
- Instagram: www.instagram.com/3sidedcube
6. OpenXcell
OpenXcell is a software development company that specializes in delivering custom software solutions tailored to various business needs. OpenXcell offers services in mobile app development, web development, cloud applications, and artificial intelligence (AI) integration.
In the United States, OpenXcell collaborates with application development companies, providing services that encompass the entire software development lifecycle. Their offerings include custom mobile app development, cross-platform solutions, and enterprise mobility services. OpenXcell’s approach involves understanding clients’ requirements, assembling teams with the necessary skills, and delivering projects that align with business objectives. They also provide post-launch support and maintenance to ensure optimal performance of the applications.
Key Highlights:
- Focus on technology solutions
- Offers AI, software development, and web design services
- Experience across multiple industries, including healthcare
- Explores AI applications in dentistry
Services:
- Artificial Intelligence Solutions
- Software Development
- Web Design and Development
- SEO and Internet Marketing
Contact and Social Media Information:
- Website: www.openxcell.com
- Address: 304 S. Jones Blvd #520 Las Vegas, NV 89107
- Phone: +1 888 777 4629
- E-mail: sales@openxcell.com
- LinkedIn: www.linkedin.com/company/openxcell
- Twitter: x.com/openxcell
- Facebook: www.facebook.com/openxcellai
7. Progatix
Progatix is a software development company. The company offers a range of services including custom software development, mobile and web application development, enterprise IT services, AI development, CRM, ERP, and testing and QA. Progatix serves clients across various industries, providing tailored digital solutions to meet specific business needs.
In the United States, Progatix collaborates with application development companies, offering services that encompass the entire software development lifecycle. Their offerings include custom mobile app development, cross-platform solutions, and enterprise mobility services. Progatix’s approach involves understanding clients’ requirements, assembling teams with the necessary skills, and delivering projects that align with business objectives. They also provide post-launch support and maintenance to ensure optimal performance of the applications.
Key Highlights:
- Offers SEO as part of comprehensive digital services
- Serves over 25 industry verticals, including healthcare and retail
Services:
- Custom software development
- Web development
- Search engine optimization (SEO)
- Social media marketing
- Mobile application development
- UI/UX design
- Database development
Contact and Social Media Information:
- Website: progatix.com
- Address: 801 International Pkwy, Lake Mary, FL 32746
- Phone: +1 (321) 329-5439
- E-mail: info@progatix.com
- LinkedIn: www.linkedin.com/company/progatix
- Facebook: www.facebook.com/Progatix
- Instagram: www.instagram.com/progatix.inc
8. *instinctools
*instinctools is a software product development and consulting company with years of experience in technology, strategy, and data. The company provides digital transformation services to businesses worldwide, including application development services in the USA. Their offerings encompass custom software development, AI-powered application engineering, SaaS development, and enterprise automation. *instinctools has delivered projects across various industries such as finance, healthcare, manufacturing, ecommerce, media and entertainment, logistics, and education.
The company emphasizes a mature Delivery Framework and professional Information Security approach, adhering to ISO standards for data security and for quality management. Their services include mobile app development for both iOS and Android platforms, web application development, and legacy software modernization. *instinctools also offers consulting services in CRM, ERP, and product design, aiming to assist businesses in their digital transformation journeys.
Key Highlights:
- Experience in software development and consulting
- Expertise in AI and machine learning, custom software solutions, and enterprise automation
- Services tailored for various industries including healthcare, fintech, manufacturing, logistics, and ecommerce
- Offers HubSpot CMS development for SEO-optimized websites
Services:
- Digital Product Engineering
- SaaS Development
- AI-powered Application Engineering
- Ecommerce Development
- Enterprise Automation Software
- Web Design and Development
- Mobile App Development
- Legacy Software Modernization
- HubSpot CMS Development
Contact and Social Media Information:
- Website: www.instinctools.com
- Address: 12430 Park Potomac Ave, Unit 122, Potomac MD 20854, USA
- Phone: +1 202-821-4280
- E-mail: contact@instinctools.com
- LinkedIn: www.linkedin.com/company/instinctools
- Twitter: x.com/instinctools_EE
- Facebook: www.facebook.com/instinctoolslabs
- Instagram: www.instagram.com/instinctools
9. TekRevol
TekRevol is a digital transformation company, offering a range of services including mobile application development. The company provides end-to-end mobile app development services, covering everything from concept validation and design to development and deployment. Their team comprises business analysts, project managers, UI/UX designers, developers, quality testers, and strategists who work collaboratively to deliver custom applications.
In addition to mobile app development, TekRevol offers services in custom software development, cloud application development, and game development. Their expertise spans various industries, including healthcare, fintech, education, and e-commerce. The company utilizes a variety of technologies and platforms, such as .NET, Java, Node.js, PHP, Python, Azure, GCP, Oracle, and SAP, to deliver tailored solutions to their clients.
Key Highlights:
- Comprehensive SEO services covering various aspects of optimization
- Focus on enhancing online visibility and driving organic traffic
- Services tailored to general business needs across multiple industries
Services:
- Keyword Research & Strategy
- Link Building
- Technical SEO
- Local SEO
- On-Page SEO
- Off-Page SEO
- Franchise SEO
- Shopify SEO
- Amazon SEO
- eCommerce SEO
- Content Writing
- Conversion Rate Optimization (CRO)
Contact and Social Media Information:
- Website: www.tekrevol.com
- Address: 500 W 2nd St Suite 1900, Austin, TX 78701, United States
- Phone: +1 800-362-9239
- E-mail: info@tekrevol.com
- LinkedIn: www.linkedin.com/company/tekrevol
- Twitter: x.com/tekrevol
- Facebook: www.facebook.com/TekRevolOfficial
- Instagram: www.instagram.com/tekrevol
10. 10Pearls
10Pearls is a technology company that partners with application development companies USA to provide comprehensive digital solutions. The company offers services that span the full application lifecycle, including design, development, testing, and maintenance. Their approach integrates user-centered design with agile methodologies to support clients across multiple industries such as healthcare, finance, education, and retail.
The company focuses on delivering custom mobile and web applications, using modern technologies and frameworks to meet specific business needs. Additionally, 10Pearls provides digital transformation consulting and cybersecurity services, which complement their application development offerings. Their expertise includes cloud solutions, DevOps, and data analytics, enabling them to build scalable and secure applications tailored to client requirements.
Key Highlights:
- Global presence.
- Offers a wide range of digital services, including software development and digital marketing.
- Provides digital marketing services through 10Pearls Studio.
Services:
- Software Development
- Artificial Intelligence Solutions
- Digital Marketing (via 10Pearls Studio)
- Product Design and Development
- Technology Acceleration
Contact and Social Media Information:
- Website: 10pearls.com
- Address: 8614 Westwood Center Dr, Ste 540 Vienna, VA 22182
- Phone: (703) 935-1919
- E-mail: info@10pearls.com
- LinkedIn: www.linkedin.com/company/10pearls
- Twitter: x.com/TenPearls
- Facebook: www.facebook.com/10Pearls
11. Closeloop
Closeloop is a technology company that collaborates with application development companies USA, offering a range of software development solutions. The company focuses on delivering custom software products including web and mobile applications. Their development process involves agile methodologies that emphasize flexibility and close client collaboration throughout project stages.
The company’s services extend beyond just application development to include product design, quality assurance, and post-launch support. Closeloop works with clients across industries such as healthcare, finance, and e-commerce, integrating emerging technologies like AI and cloud computing to enhance application performance and scalability. Their offerings also cover API development and system integration.
Key Highlights:
- Development centers located in India
- Specializes in custom software solutions for various industries
- Experience in marketing and advertising technology development
Services:
- Custom software development
- Web and mobile application development
- Cloud solutions
- Data analytics
- Marketing and advertising software solutions
Contact and Social Media Information:
- Website: closeloop.com
- Address: 2672 Bayshore Parkway #532, Mountain View, CA 94043
- Phone: (+1) 650-266-7175
- E-mail: sales@closeloop.com
- LinkedIn: www.linkedin.com/company/closeloop-inc-
- Twitter: x.com/closeloop_tech
- Facebook: www.facebook.com/closelooptechnologies
- Instagram: www.instagram.com/closeloop_tech
12. Utility
Utility Agency works with application development companies USA to provide tailored digital solutions, including mobile and web application development. Their approach emphasizes user experience and design, focusing on creating applications that meet specific client goals. The company integrates technology and creative strategy to deliver products that address business challenges across various industries.
The agency offers a broad spectrum of services beyond application development, such as branding, UI/UX design, and digital marketing. Their development process includes collaboration with clients to ensure the final product aligns with user needs and market demands. Utility Agency also supports post-launch services including optimization and maintenance, aiming for continuous improvement of applications in real-world use.
Key Highlights:
- Serves a global clientele
- Expertise in custom digital product development
- Focus on user experience and scalable technology
- Implementation of SEO best practices in web development
Services:
- Mobile App Design & Development
- Web Platform Development
- AI Solutions
- Growth Marketing
- Digital Transformation
- SEO Implementation in Web Development
Contact and Social Media Information:
- Website: utility.agency
- Address: 135 Madison Ave, 5th Floor, New York, NY 10016
- E-mail: info@utility.agency
- LinkedIn: www.linkedin.com/company/utility-agency
- Twitter: x.com/Utility_agency
- Instagram: www.instagram.com/utility_agency
13. Appello
Appello works with application development companies USA, delivering customized software solutions for various business needs. The company specializes in digital transformation projects that include mobile and web application development, focusing on aligning technology with client goals. Their approach integrates agile methodologies to ensure iterative development and timely delivery.
Appello also offers consulting services that support strategic planning and technology assessment. They provide end-to-end development, from initial concept to deployment and ongoing support. Their expertise covers industries such as healthcare, finance, and government, enabling them to address sector-specific requirements within application development projects.
Key Highlights:
- Offers end-to-end digital product development services
- Serves multiple industries, including healthcare and finance
- Provides services in web and mobile app development
- Incorporates technologies like AI and VR in solutions
Services:
- Digital Advisory
- Digital Product Design
- Software Development
- Project Support
Contact and Social Media Information:
- Website: appello.com
- Phone: +1 628 280 6518
- E-mail: hello@appello.com.au
- LinkedIn: www.linkedin.com/company/appello-software
- Facebook: www.facebook.com/appellosoftware
- Instagram: www.instagram.com/appello_software
14. Eight Bit Studios
Eight Bit Studios collaborates with application development companies USA, focusing on the design and development of interactive digital products including mobile apps, web applications, and games. Their work emphasizes creativity and user engagement, incorporating agile methodologies to deliver solutions that adapt to client needs and market demands. The company integrates multidisciplinary teams to address various phases of the development cycle, from concept to deployment.
In addition to application development, Eight Bit Studios offers services in branding, user interface design, and animation, providing comprehensive digital experiences. Their client base includes startups and established businesses, with projects tailored to improve usability and functionality. The company’s approach involves close collaboration with partners, including application development companies USA, to ensure technical and strategic alignment throughout each project.
Key Highlights:
- Specializes in AI-enabled MVP development
- Offers fractional CTO services for startups
- Focuses on UI/UX design and product strategy
- Experience across multiple industries, including healthcare
Services:
- AI-powered MVP app development
- UI/UX design for startups
- Brand and launch asset creation
- Fractional CTO leadership
- Product strategy planning
Contact and Social Media Information:
- Website: eightbitstudios.com
- Address: 1 E Erie St Suite 525 #4993, Chicago, IL 60611
- Phone: 3122818823
- LinkedIn: www.linkedin.com/company/eight-bit-studios
- Facebook: www.facebook.com/eightbitstudios
- Instagram: www.instagram.com/eightbitstudios
- Twitter: x.com/eightbitstudios
15. WillowTree
WillowTree provides services in the USA, across mobile app development, web development, and digital product design. The company integrates user-centered design with agile software development practices to deliver tailored applications that meet client needs. Their expertise spans native app development for iOS and Android platforms, along with cross-platform solutions and backend services, allowing them to support end-to-end application delivery.
Beyond application development, WillowTree offers strategy, UX/UI design, and product management services, collaborating with partners including application development companies USA to align business goals with technical execution. Their approach involves continuous iteration and testing to improve user engagement and performance.
Key Highlights:
- Offers a range of digital services including digital strategy, data and AI, product development, brand and experience design, and digital marketing.
- Digital marketing services encompass experience orchestration and analytics & optimization to enhance SEO and engagement.
Services:
- Digital Strategy Consulting
- Data & AI Solutions
- Product Development
- Brand & Experience Design
- Digital Marketing
Contact and Social Media Information:
- Website: www.willowtreeapps.com
- Email: info@willowtreeapps.com
- Phone: 1-888-329-9875
- Address: 1835 Broadway Street, Charlottesville, VA 22902, USA
Conclusion
The application development landscape in the USA includes a broad mix of companies that offer a wide range of services, from mobile and web development to UI/UX design and product strategy. These companies often work with clients across industries, helping them bring digital ideas to life through custom software solutions. Whether supporting startups, enterprises, or other application development companies in the USA, their roles tend to involve close collaboration, iterative development, and a focus on end-user needs.
Each company brings its own set of skills, tools, and approaches, so choosing the right partner often comes down to matching technical capabilities with project goals. Understanding the specific services a company provides – along with how they work, who they’ve partnered with, and what kind of projects they’ve handled – can help businesses make more informed decisions when starting a development project. Ultimately, the diversity in the field reflects the varied demands of today’s digital landscape.
