Top Single Page Applications (SPA) Companies

TouchZen Media

Verified

A boutique mobile app agency based in Orange County, CA, helping startups and growing companies design, build, and scale iOS, Android, and web apps.

5.0(42)

5.0

42 reviews

We’re more than a digital agency — we work as an extension of your team. From concept to launch, we design and build products that are functional, intuitive, and aligned with your goals. Since 2014, our focus has been on crafting experiences that feel effortless and meaningful for the people who use them — delivering results that stand out for their clarity and impact.

Weelorum

Verified

AI-Powered Mobile Apps | iOS, Android, Flutter, React Native | MVP in 8 Weeks

5.0(23)

5.0

23 reviews

WHY CLIENTS CHOOSE WEELORUM: We're not just another dev shop. We use AI-assisted development to deliver your mobile app faster, with fewer iterations, and at a fraction of the traditional cost. What makes us different: • AI-Accelerated Discovery Phase: 2 weeks instead of 4, same quality, half the cost • Claude AI + Cursor integration: 3x faster prototyping and code generation • Full-cycle delivery: Design → Development → QA → App Store launch • Long-term partnerships: avg 3+ years with our clients (Digiproduct — 5+ years) INDUSTRIES WE SPECIALIZE IN: • HealthTech (HIPAA-aware): Swim-Wise AI wellness platform • FinTech (Secure Payments): Jon D. Rock financial app • Social & Marketplace: Photo Shoot, Dating apps • E-Commerce: GetBooks digital bookstore • White-label for agencies: Digiproduct (5+ years) TECH STACK: iOS (Swift, SwiftUI) | Android (Kotlin, Jetpack Compose) | Flutter | React Native Node.js | Firebase | AWS | AI/ML Integration | Claude AI | Computer Vision OUR PROCESS: 1. Discovery Phase (2 weeks) — Research, wireframes, interactive prototype 2. Design (2–3 weeks) — UI/UX, design system, animations 3. Development (4–8 weeks) — Agile sprints, weekly demos, CI/CD 4. QA & Launch — App Store optimization, release management WHAT CLIENTS SAY: "We felt like collaborators, not clients" — Co-Founder, Social Media Startup "Released the final app in just three months" — CEO, Jon D. Rock "5+ years and counting" — Founder, Digiproduct

Lantern Digital

Verified

Award-winning web agency in Shanghai, China.

5.0(12)

5.0

12 reviews

Since 2005, we've helped top brands in China to develop and grow. Our work often involves working with international clients in China, and helping Chinese clients expand internationally.

WD Strategies

Verified

Build a Powerful Digital Footprint

We’re passionate about helping businesses tackle a variety of challenges from the initial website setup to optimizing for online visibility, conducting online advertising campaigns, developing more efficient process, and more. Our team has experts who specialize in disciplines like web design/development, software engineering, marketing, SEO, SEM/PPC, integrations, multimedia development, and different financial focuses ranging from bookkeeping to job cost analysis, financial compliance, transfer pricing issues, and strategy consulting.

RNO1

Verified

RNO1 is a Global Branding, UX & Digital Growth Partner. Creating Radical Digital Experiences™.

RNO1 is a Global Branding, UX & Digital Growth Partner. We build Radical Digital Experiences™ for VC-backed startups, public companies, and Fortune 500s across every medium — making your brand presence compound revenue instead of leaking it. Operating as a continuous, embedded digital partner—deploying senior, cross-functional teams to architect market dominance for Founders, C-Suite, and Product teams. Every medium your market interacts with — your website, product, digital campaigns, and sales assets — is an immediate and ruthless signal of your market value. When elite design and messaging are calibrated to your audience and unified by a cohesive brand strategy, credibility scales and revenue compounds. When execution misses the mark or the brand is fragmented, every interaction contradicts the last — and revenue leaks at every stage. We reverse-engineer your goals, deeply understand your audience, and embed as a true partner to produce tangible results — typically starting with brand strategy and then subsequently aligning website(s), product(s), content, and marketing channels to drive market growth. Let's Create Radical Digital Experiences™

Proven ROI

Verified

Austin based digital marketing agency specializing in AI visibility optimization, CRM implementation, and revenue-driven SEO for 500+ organizations

Proven ROI is an AI driven digital marketing and growth optimization firm that helps organizations turn marketing into measurable revenue. The company specializes in advanced SEO, AI search optimization (AEO), paid media, marketing automation, data integrations, and conversion focused website development. Unlike traditional agencies that focus on activity, Proven ROI focuses on outcomes. Every strategy is built around measurable performance, revenue attribution, and long-term growth. By combining AI powered insights with deep technical expertise, the team helps companies dominate search results, improve visibility across AI driven platforms, and convert traffic into qualified customers. Proven ROI works with companies across multiple industries, delivering custom solutions that integrate marketing, technology, and automation. Services include full funnel digital marketing strategy, high performance websites, AI search optimization, CRM and API integrations, paid advertising management, and advanced analytics. The company has been recognized as one of the Most Innovative Companies to Watch and is known for helping organizations transform fragmented marketing efforts into scalable growth engines.

XAPP DESIGN

Verified

Custom Digital Marketing Solutions

5.0(7)

5.0

7 reviews

We've been developing and delivering custom digital marketing solutions since 2003! From creating our own custom ecommerce platform to CMS development like Wordpress, we can work with and connect to pretty much anything. We prioritize results by helping businesses acheive the level of success they want and finding the right technology and avenues to make it so.

Solvios Technology

Verified

A Software Development Company Trusted by 100+ Businesses Globally

5.0(9)

5.0

9 reviews

Solvios Technology is a global digital solutions partner based in the USA and India, helping businesses build, scale, and optimize their technology ecosystem. With over a decade of experience and a strong in-house team, we work with startups, growing companies, and enterprises to deliver reliable, high-performance solutions tailored to real business needs. Our core expertise spans custom software development, web and mobile applications, CRM and ERP implementations, and scalable cloud-based platforms. We focus on building systems that are not just functional but aligned with your long-term growth strategy. We actively help businesses integrate AI into their operations and products. From AI-powered automation and intelligent chatbots to data-driven decision systems and machine learning models, we enable organizations to reduce manual effort, improve efficiency, and unlock new opportunities. Our services include: - Custom Web & Mobile App Development - AI Solutions (Chatbots, Automation, Predictive Analytics, etc.) - CRM & ERP Implementation - SaaS Product Development - UI/UX Design & Frontend Engineering - API Development & System Integrations - Cloud & Scalable Architecture - Digital Marketing What sets us apart is our focus on clarity, communication, and execution. We don’t just deliver projects, we partner with our clients to solve problems, improve processes, and create measurable impact. If you’re looking for a team that understands both technology and business, we’d be happy to explore how we can support your next initiative.

The SEO Works

Verified

THE DIGITAL GROWTH EXPERTS

5.0(11)

5.0

11 reviews

We are a leading provider of search marketing and digital infrastructure for ambitious brands. Since 2009, we have focused on a single objective: delivering measurable growth through technical excellence and strategic insight. Our team of over 80 specialists includes technical architects, content authors, and AI experts. As an employee-owned agency, we provide a level of accountability and stability that is rare in the digital sector. We use a suite of internal frameworks, developed and refined over 17 years, to ensure our clients benefit from a proven, data-led methodology. Our bespoke process builds your digital presence as universal information infrastructure. This approach ensures your brand remains the definitive source of truth for human users, search indexes, and the new era of AI retrieval models. Our focus on long-term performance has earned us multiple industry accolades, including being named SEO Agency of the Year on three occasions. Whether you require SEO, PPC, Digital PR, or Web Development, we provide the scale and expertise to help your business win.

Akendi

Verified

Intentional Experiences

Home to deep UX/UI knowledge and a unique blend of personalities, our multi-disciplinary team bridges the gap between business, design, and technology. With specialists in systems engineering, behavioural sciences, data science, and visual design, and more, we bring powerful credentials to every project.

OLEARIS

Full-cycle mobile and web product development for startups and growing teams

5.0(8)

5.0

8 reviews

🤝 Hey, we’re Olearis. We build mobile apps and web platforms for startups and growing teams, and we’re the kind of team you can actually rely on when things get real (deadlines, scope changes, “can we ship this faster?” moments). Usually we jump in at one of two points: - You have an idea and need an MVP that looks good, works smoothly, and can scale later. - You already have a product, but you want better UX, fewer bugs, faster releases, and a team that won’t disappear after launch. We cover the full cycle: discovery, UX/UI, mobile (Flutter, iOS, Android), web + backend, QA, analytics, launch, and long-term support. We’ve worked on SaaS, marketplaces, health & wellness apps, social apps, and business tools. If AI makes sense for your product, we can add it in a practical way (assistants, automation, smart content features). If you tell us what you’re building and where you’re stuck right now, we’ll suggest the cleanest next steps.

Loopstudio

Secure Software Development and Design

5.0(2)

5.0

2 reviews

Welcome to Loopstudio. We are the strategic secure software development partner for businesses that harness the power of technology to create competitive advantages. Our services are designed to support companies launch secure and intuitive software, modernize legacy systems, optimize data ecosystems, and create AI initiatives that deliver ROI. For either SaaS products or business applications, we are a trustworthy and experienced technology partner that delivers high quality software. Our LATAM-based team counts with hundreds of delivered projects under our belts and over a decade partnering with US companies. We partner with CTOs, CIOs, and Product Heads to build and transform exceptional web and mobile products. OUR CORE SERVICES: - MVPs & POCs - Legacy System Modernization - AI-enabled Processes - AI Adoption Roadmap and Projects - Data Engineering / Data Environment Optimization and Modernization - Product Revamp / Redesign - Fractional CTO / Architect - High-Performance Team - Design, Development, Data, and Management

Bayshore Marketing Group

We Don't Chase Algorithms. We Build Authority.

5.0(8)

5.0

8 reviews

Bayshore Marketing Group is a full-service digital marketing agency based in St. Petersburg, FL, with over 20 years of experience helping businesses grow their brand, generate leads, and dominate their market online. Backed by 75+ years of combined team expertise, we bring both the strategic depth of a large agency and the personalized attention of a dedicated in-house team. We specialize in AI-powered and data-driven marketing strategies that deliver real, measurable results, not vanity metrics. Our services span SEO, social media management, web development, digital advertising, email marketing, branding, content marketing, and graphic design. Every engagement starts with strategy first, because tactics without direction are just noise. What sets us apart is our ability to blend human insight with advanced digital tools including AI and Answer Engine Optimization (AEO) to help our clients get found by the right people, at the right time, for the right reasons. Our email marketing campaigns consistently outperform industry averages, and our SEO approach builds lasting authority rather than chasing short-lived algorithm wins. We serve a diverse range of industries including real estate, restaurants and hospitality, construction, property management, non-profits, vacation rentals, and senior living. Whether you're a growing local business or an established brand ready to level up, we tailor every strategy to your specific goals and target audience. Partnering with Bayshore means gaining a trusted marketing ally who takes your business growth as seriously as you do.

Pixer

Pixer: Creative Web Design and Development Agency

5.0(3)

5.0

3 reviews

Pixer is a leading web design and development agency, passionate about crafting stunning websites that captivate audiences. Our expert team leverages cutting-edge tools and innovation to unleash your digital potential.

50 Marketing

Verified

Integrated growth platform aligning strategy, execution, and performance to drive measurable pipeline, revenue, and scalable enterprise value.

The 50 Family of Agencies is not a collection of vendors—it’s an integrated growth system designed to eliminate the fragmentation that kills performance. Most companies don’t have a marketing problem. They have a coordination problem—strategy disconnected from execution, execution disconnected from performance, and specialists operating in silos with no shared accountability for outcomes. We solve that by structuring every capability—strategy, digital infrastructure, demand capture, authority building, AI implementation, and growth execution—into a unified platform. Each agency is purpose-built, but none operate independently. They are aligned around a single objective: measurable business outcomes. Strategy is tied to execution from day one Execution is built for performance, not activity Performance is measured in pipeline, revenue, and enterprise value—not vanity metrics This model allows us to do what traditional agencies can’t: Move faster without losing alignment Deploy specialized expertise without fragmentation Scale what works across the entire system Where most agencies sell services, we build systems that produce results—consistently, predictably, and at scale.

Floating Dots

Connecting the dots between vision, product design, and custom software development behind successful web & mobile apps.

5.0(2)

5.0

2 reviews

Floating Dots is a product software development company founded in 2017, around a team of creative and enthusiastic people. Since then, we had successfully set up custom software services for companies with technological needs as well as start-ups. Our services are scalable so we can address the needs of businesses of all sizes. We are defined by our curiosity and passions. That’s why we are striving to ensure the high quality of the solutions we develop. The industries in which we have a deep understanding of the complexity of business processes are: - Education - Retail (e-commerce) - HR - Finance - Manufacturing - Healthcare - Social - Consumer products - Hospitality & Leisure We cover a complete set of services and abilities for for all stages of the software products lifecycle: - Web Development - Mobile Development - UI & UX Design - DevOps - Quality Assurance - Business Analysis - Technical Support Managing all the stages of the software lifecycle is what we do to ensure the success of your ideas: - ideation - architecture - design - development - quality assurance - operations - support

I Build Web Solutions

Web Design, SEO, and Digital Marketing Agency

5.0(7)

5.0

7 reviews

I Build Web Solutions is a leader in web design and digital marketing. Our commitment to quality and excellence is unparalleled. From the first brainstorming session to the final product delivery, we ensure that every step of the process is executed to perfection. You are not just getting a service; you are getting a partner who is committed to your growth and success.

April Innovations

Verified

Full Stack Enterprise App Development Company

5.0(1)

5.0

1 review

We are a full stack software engineering company with focus on Banking and Fintech applications. We have serviced clients in USA, UK and India. Our core areas of expertise are Enterprise Apps, Artificial Intelligence, Mobile Apps, E-Commerce, Platforms. We have worked on projects that has half a million users and have delivered projects with Bank level security. We prefer to work on micro teams model where we build a micro team for each of our client that acts as an extended tech team for the client.