SaaS Application Development Companies in the USA

Software as a Service (SaaS) continues to be one of the most widely adopted models in the tech industry, used by businesses of all sizes to deliver applications over the internet. As a result, demand for SaaS application development companies in the USA has grown steadily. These companies focus on building scalable, cloud-based solutions that are accessible from any device with an internet connection.
In the USA, many development firms specialize in creating SaaS products – from custom business tools to large-scale platforms. They work with startups, enterprises, and even other tech teams to design, develop, and maintain SaaS applications. What sets these companies apart is their understanding of multi-tenant architecture, subscription models, and user management systems, all of which are essential for SaaS platforms.
In this article, we’ll take a closer look at top SaaS application development companies in the USA, what they offer, and what to keep in mind when choosing a partner for your next software project.
1. LenGreo
LenGreo is a B2B digital agency that offers services including SEO, lead generation, and web development. The company collaborates with various industries, such as biotech, SaaS, cybersecurity, Web3, logistics, adult, and iGaming sectors, providing tailored strategies aimed at delivering high-quality leads and return on investment (ROI). LenGreo’s approach integrates inbound and outbound marketing methods, encompassing SEO, content marketing, personalized outreach, and networking.
The company offers its services in the USA, supporting local and international clients alike. LenGreo focuses on digital marketing and lead generation strategies to support the growth of SaaS businesses.
Key Highlights:
- Combines execution with consulting to support long-term growth
- Emphasizes lead generation and search visibility
- A structured process that includes regular performance reviews
Services:
- SEO (technical, local, and on-page optimization)
- Lead generation strategy
- Paid advertising (including Google Ads)
- Email marketing
- Brand positioning and digital consulting
- Analytics and performance tracking
Contact and Social Media 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. ELEKS
ELEKS is a global software engineering and consulting firm, the company serves clients worldwide. ELEKS offers a range of services tailored to various industries such as finance, healthcare, logistics, and retail.
In the context of SaaS application development companies in the USA, ELEKS provides services that encompass the entire software development lifecycle. Their offerings include custom software development, cloud migration, data analytics, AI solutions, and cybersecurity. ELEKS employs agile methodologies and leverages technologies like blockchain and cloud solutions to enhance efficiency and ensure the scalability of the products they develop.
Key Highlights:
- Focus on software engineering and digital consulting
- Experience working with logistics, retail, healthcare, and other sectors
- Emphasis on data science, AI, and UX/UI design
- Offices across North America and Europe
Services:
- Custom software development
- Digital transformation consulting
- Data science and machine learning
- UX/UI and product design
- Cybersecurity
- IT consulting and support
Contact and Social Media Information:
- Website: eleks.com
- Address: 625 W. Adams St., Chicago, IL 60661
- Phone: +17089674803
- LinkedIn: www.linkedin.com/company/eleks
- Twitter: x.com/ELEKSSoftware
- Facebook: www.facebook.com/ELEKS.Software
3. Fueled
Fueled is a digital transformation agency based in the United States, specializing in the development of SaaS applications. The company offers services that encompass strategy, design, and engineering to create digital products and experiences. Fueled’s expertise includes mobile and web development, as well as the integration of artificial intelligence into their solutions. Their approach involves turning strategic plans into software that is flexible, future-ready, and built to perform.
In addition to their development services, Fueled has experience in digital transformation projects, having worked with various clients to enhance their digital presence and operational efficiency. The company has also developed proprietary tools and frameworks aimed at accelerating client success, such as ElasticPress.io and Pressto Mobile.
Key Highlights:
- Focuses on mobile and web product development
- Offers UI/UX design and technical consulting
- Works primarily with startups and enterprise clients
- Strong emphasis on performance and usability
Services:
- Mobile app development (iOS and Android)
- Web platform development
- Product design (UI/UX)
- Technical strategy and consulting
- Backend infrastructure and API development
- Digital transformation support
Contact and Social Media Information:
- Website: fueled.com
- Phone: (212) 763-7726
- E-mail: hello@fueled.com
- LinkedIn: www.linkedin.com/company/fueled
4. Chetu
Chetu is a U.S.-based software development company that provides custom technology solutions to businesses worldwide. Chetu offers a range of services, including SaaS application development, catering to various industries and business sizes. The company operates from its headquarters in Sunrise, Florida, and has multiple offices across the United States and internationally.
In the realm of SaaS application development, Chetu delivers tailored cloud software solutions, assisting clients in migrating users, data, and applications into cloud services. Their services encompass the full software development lifecycle, from initial consultation and design to development, integration, and support. Chetu’s expertise extends to various cloud platforms, including AWS, where they are recognized as a Certified AWS Partner, providing configurations, migrations, and integrations to help enterprises scale their business applications.
Key Highlights:
- Offers custom development for digital marketing tools
- Includes SEO software as part of broader service categories
- Serves a wide range of industries with adaptable solutions
- Based in the U.S. with global development centers
Services:
- Digital marketing software development
- Custom CRM and ERP development
- Website and web application development
- Mobile app development
- SEO software integration and analytics tools
- Industry-specific software solutions (finance, healthcare, etc.)
Contact and Social Media Information:
- Website: www.chetu.com
- Address: 1500 Concord Ter, Suite 100, Sunrise, FL 33323, USA
- Phone: +1 954 342 5676
- E-mail: sales@chetu.com
- LinkedIn: www.linkedin.com/company/chetu-inc-
- Twitter: x.com/ChetuInc
- Facebook: www.facebook.com/ChetuInc
5. MentorMate
MentorMate is a Minneapolis-based digital transformation consultancy that provides custom software development services, including SaaS application development, to clients in the USA. The company has completed many projects for clients across various industries such as healthcare, education, manufacturing, financial services, and agriculture.
MentorMate’s approach combines human-centered design, artificial intelligence, and engineering to create scalable and secure digital solutions. Their services encompass web and mobile development, cloud and DevOps, data and analytics, and AI integration, catering to the needs of SaaS application development companies in the USA.
Key Highlights:
- Global software consultancy
- Focuses on enterprise-level custom software development
- Offers UX/UI design and cloud-native architecture
- Works with clients in regulated and complex industries
Services:
- Digital strategy consulting
- Custom software and mobile app development
- Cloud and DevOps engineering
- UI/UX design
- Quality assurance and security consulting
- Dedicated development teams
Contact and Social Media Information:
- Website: mentormate.com
- Address: 1350 Lagoon Ave, Suite 800, Minneapolis, MN 55408, USA
- Phone: +1 612 823 4000
- LinkedIn: www.linkedin.com/company/mentormate
- Facebook: www.facebook.com/MentorMate
- Instagram: www.instagram.com/mentormate
6. MojoTech
MojoTech is a U.S.-based software development company that integrates strategy, engineering, and design to create digital products and experiences. The company serves clients across North America, including SaaS application development companies in the USA. MojoTech’s services encompass custom software development, digital product engineering, and UI/UX design, among others.
The company has experience working with clients in various industries, such as healthcare, finance, insurance, retail, and utilities. MojoTech’s approach involves integrating strategy, engineering, and design to deliver results-driven digital products and experiences. Their services are tailored to meet the specific needs of each client, including those in the SaaS sector.
Key Highlights:
- Emphasis on agile development and client collaboration
- Offers end-to-end digital product delivery, from strategy to deployment
Services:
- Product Strategy and Planning
- UX/UI Design
- Software Engineering
- Cloud Infrastructure
- DevOps and CI/CD Implementation
Contact and Social Media Information:
- Website: www.mojotech.com
- Address: 79 Madison Ave. 8th Floor, New York, NY 10016
- LinkedIn: www.linkedin.com/company/mojotech
- Twitter: x.com/mojotech
7. Simform
Simform is a digital engineering company that offers SaaS application development services in the USA. The company provides end-to-end SaaS development solutions, including planning, implementation, deployment, and maintenance. Their services are designed to deliver scalable applications and reliable services over cloud infrastructure. Simform’s approach includes full test coverage before deployment and easy integration into cloud platforms.
Simform’s expertise extends to building multi-tenant, secure, and robust SaaS solutions. They assist clients in upgrading products to architectures that enable SaaS delivery, ensuring minimal impact on existing users. The company also offers services in application modernization, helping businesses assess and align their current application infrastructure with organizational goals.
Key Highlights:
- Focus on technology-driven SEO and digital marketing
- Emphasis on scalable and data-driven digital solutions
Services:
- Custom Software and Web Development
- Digital Marketing Strategy and Execution
- Data Analytics and Performance Tracking
- Mobile and Cloud Application Development
Contact and Social Media Information:
- Website: www.simform.com
- LinkedIn: www.linkedin.com/company/simform
- Twitter: x.com/simform
- Facebook: www.facebook.com/simform
8. EffectiveSoft
EffectiveSoft is a U.S.-based software development company that offers full-cycle SaaS application development services. The company specializes in creating custom cloud-based solutions accessible via web, mobile, and APIs. Their approach includes utilizing reputable cloud service providers, selecting appropriate SQL or NoSQL databases, and adhering to best practices in both back-end and front-end development. This methodology enables them to deliver scalable and secure SaaS applications that can handle increasing data flows and adapt to evolving business and user needs.
In addition to SaaS development, EffectiveSoft provides a range of services including custom software development, mobile and web application development, and enterprise software solutions. Their expertise extends to various industries such as healthcare, fintech, and trading. The company employs Agile development methodologies and offers outsourcing models like dedicated teams and staff augmentation.
Key Highlights:
- Custom WordPress development with a focus on performance and design
- Responsive and intuitive front-end development services
- Experience in delivering digital solutions across various industries
Services:
- Custom WordPress development
- Front-end development
- SEO services
- UX/UI design
- Software testing and QA
- Maintenance and support
Contact and Social Media Information:
- Website: www.effectivesoft.com
- Address: 50 California St #1500, 94111, San Francisco, CA
- Phone: 1-800-288-9659
- E-mail: rfq@effectivesoft.com
- LinkedIn: www.linkedin.com/company/effectivesoft
- Twitter: x.com/EffectiveSoft
- Facebook: www.facebook.com/EffectiveSoft
9. Appinventiv
Appinventiv is a software development company based in the USA that offers SaaS application development services. Their services encompass the entire lifecycle of SaaS product development, including design, development, migration, and maintenance. The company focuses on building scalable and secure SaaS solutions tailored to various industries.
In addition to development, Appinventiv provides support for technology migration and reengineering, assisting clients in transitioning their SaaS applications to modern tech stacks. They also offer post-launch support and maintenance services to ensure the ongoing performance and relevance of the applications.
Key Highlights:
- Offers digital marketing services, including SEO, web design, and content marketing
- Focuses on creating custom, mobile-ready, and search engine-optimized websites
- Provides content marketing strategies that integrate with SEO, social media, and email marketing
Services:
- Web Design and Development
- Social Media Marketing
- Content Marketing
- SEO Services
Contact and Social Media Information:
- Website: appinventiv.com
- Address: 79 Madison Ave Manhattan, NY 10001, USA
- Phone: + 1 – 646 – 585 – 0501
- LinkedIn: www.linkedin.com/company/appinventiv
- Twitter: x.com/appinventiv
- Instagram: www.instagram.com/appinventiv
10. DockYard
DockYard is a digital product agency, offering custom software development services, including SaaS application development. The company provides services such as product strategy, design, engineering, and maintenance support for web and mobile applications. DockYard’s team includes engineers and designers experienced in technologies like Elixir, Phoenix, React, and Ember.js. The company has worked with clients across various industries, including education, healthcare, and entertainment.
DockYard’s services encompass product strategy and discovery, product design and delivery, engineering consulting and staffing, and native mobile app development. The company also offers enterprise maintenance support, providing ongoing application maintenance and optimization. DockYard has collaborated with clients to design and develop SaaS applications, such as the case with Prowler, an open-source cloud security tool expanding into the SaaS space. In this project, DockYard assisted in designing a minimum viable product (MVP) with a modern user experience.
Key Highlights:
- Expertise in Elixir and Phoenix frameworks
- Services include product strategy, design, and full-stack engineering
- Client portfolio features companies like Netflix, Apple, and McGraw-Hill
Services:
- Product Strategy & Discovery
- Custom Web and Mobile Application Development
- User Experience (UX) Design
- Full-Stack Engineering
- Engineering Consulting & Staffing
- Application Maintenance and Support
- AI & Intelligent Automation
Contact and Social Media Information:
- Website: dockyard.com
- LinkedIn: www.linkedin.com/company/dockyard
- Twitter: x.com/DockYard
11. Altoros
Altoros is a U.S.-based software development company. The company provides a range of services, including custom SaaS application development, assisting SaaS development companies and enterprises in building CRM systems that help businesses manage and coordinate their marketing, sales, and customer service activities.
Altoros’s expertise spans various industries, offering solutions such as enterprise software development, legacy software modernization, and mobile development. The company also provides services like software testing and quality assurance, ensuring robust and UX-optimized products that comply with required quality standards and security regulations.
Key Highlights:
- Offers custom software development and cloud-native transformation services
- Provides Web3 integration solutions, including tokenization and on-chain lending
- Serves various industries such as finance, insurance, and healthcare
Services:
- Application modernization and transformation
- Kubernetes implementation and DevOps services
- Web3 integration, including tokenization and smart contract development
- Custom software development across multiple platforms
Contact and Social Media Information:
- Website: www.altoros.com
- Address: 4900 Hopyard Rd. Suite 100, Pleasanton, CA 94588, USA
- Phone: +1 650 419 3379
- E-mail: d.castelli@altoros.com
- LinkedIn: www.linkedin.com/company/altoros-systems
- Twitter: x.com/altoros
- Facebook: www.facebook.com/Altoros
12. ScienceSoft
ScienceSoft is a U.S.-based software development company headquartered in McKinney, Texas, with over 35 years of experience in the IT industry. The company offers a range of services, including SaaS application development for clients in the USA. Their SaaS development services encompass the entire lifecycle, from business analysis and UI/UX design to development, testing, deployment, and ongoing support. ScienceSoft assists companies in building new SaaS products and enhancing existing ones to meet evolving market demands.
In addition to SaaS development, ScienceSoft provides services such as custom software development, application modernization, and IT consulting. The company has completed many projects across various industries, including healthcare, finance, and manufacturing. ScienceSoft’s team comprises IT professionals, including software engineers, project managers, and business analysts.
Key Highlights:
- Experience in IT consulting and software development
- Offers a range of services, including web development, IT consulting, and application services
- Provides technical SEO best practices as part of ecommerce strategy consulting
- Offers web design services, including UX and UI design, branding consulting, and adherence to accessibility guidelines
Services:
- Web Development
- IT Consulting
- Application Services
- Ecommerce Strategy Consulting
- Web Design Services
- Technical SEO Best Practices
Contact and Social Media Information:
- Website: www.scnsoft.com
- Address: 5900 S. Lake Forest Drive Suite 300, McKinney, Dallas area, TX 75070, USA
- Phone: +1 214 306 6837
- E-mail: contact@scnsoft.com
- LinkedIn: www.linkedin.com/company/sciencesoft
- Twitter: x.com/ScienceSoft
- Facebook: www.facebook.com/sciencesoft.solutions
Conclusion
Choosing the right partner for SaaS application development in the USA depends on your specific business goals, technical needs, and long-term vision. The companies listed in this article provide a range of services – spanning from full-cycle SaaS product development to modernization and ongoing support. Some focus on particular industries, while others offer broader expertise, but all have experience working with SaaS application development for U.S.-based clients.
Whether you’re a startup building your first platform or an established company looking to expand your digital offering, it’s important to evaluate providers based on real project experience, technology capabilities, and ability to scale with your product.
A careful review of case studies, service models, and technical strengths can help ensure you choose a partner that fits your development roadmap and can support your SaaS product through its entire lifecycle.