Top ReactJS Development Companies in Philadelphia
SelectedFirms reviews agencies and verifies client feedback to support informed decisions. [How SelectedFirms Ensures Trust]
Not sure which
agency is right for you?
Tell us about your project, and get matched with agencies that fit your requirements.
List of the Best ReactJS Development Agencies and ReactJS Developers in Philadelphia
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
17 Companies
Filter by
-
USA
-
Pennsylvania
-
Philadelphia
4.9 (40 Reviews)
Verified
Look for SF Verified Agencies
Verified agencies on SelectedFirms have passed credibility checks confirming they are legitimate businesses with a proven digital presence. Explore Verification Process
and has 5+ verified reviews
4.9 (40 Reviews)
78
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
78
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom software and AI development, scoped and priced before code
SoftDoes is a Kansas City custom software and AI development company, founded in 2019, that builds custom software, web platforms, mobile apps, MVPs and AI automation for startups, growing businesses and enterprise teams in the United States. One SoftDoes team handles discovery, UX and UI design, development, testing, launch and ongoing support. What SoftDoes builds: Custom software: internal operations platforms that replace spreadsheets, customer and patient portals, SaaS products and integrations, built with React, Node.js, Python and .NET on AWS and Azure. AI development: AI agents, chatbots, document extraction and workflow automation on OpenAI and Anthropic Claude models, added to the systems a business already uses. Web and e-commerce: custom web applications, business websites and online stores, including Shopify. Mobile apps: iOS and Android apps for customers and field teams. Best fit for SoftDoes, with results from client reviews: Operations teams replacing manual work: an educational support company cut time spent on administrative work by 30% and internal follow-up emails by 35%, and a real estate agency cut time spent on manual administrative tasks by 35%. AI automation: an education company cut student-teacher matching from 15 minutes to under 5. Enterprise and public sector: a $200,000+ reporting platform for a government agency with more than 10,000 employees cut reporting time by 30%. Customer-facing apps: a marketing company's new mobile app raised engagement by 34% and 90-day retention by 22%. "[SoftDoes] built our full AI-powered SaaS platform from scratch. They were communicative and reliable, consistently delivering quality work on schedule." (Upwork client review, AI-powered SaaS platform for construction) How SoftDoes prices work: every project starts with a written scope and price before any code is written. A paid discovery and estimate costs $490 and is credited toward the build. Hourly development starts at $50, AI automation projects at $2,500, MVPs at $8,000, dedicated developers at $4,000 per month and support plans at $500 per month. Clients own 100% of their code, accounts and IP from day one. Track record: as of October 2026, SoftDoes has completed more than 600 client engagements since 2020 and is rated 4.92 out of 5 across 283 rated engagements on Upwork and 5.0 on Clutch. SoftDoes is a member of the AWS Partner Network, a Zapier Silver Solution Partner and a Shopify Partner. SoftDoes carries general liability, professional liability (errors and omissions) and cyber liability insurance. A certificate of insurance is available on request.
See all 21+ Case Studies
$50-$99/hr
$1,000+
50 - 249
Kansas City, USA
Verified Client Review
Internal Platform Design & Development for a Manufacturing Company
Reviewed by: Anonymous, Analyst at Manufacturing Company View all 40 Reviews
5.0 (3 Reviews)
5.0 (3 Reviews)
33
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
33
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Responsible. Responsive. On Time
Inoxoft is an international company that builds first-of-class apps building the world’s finest development teams. The company provides certified web and mobile application development services along with quality assurance services, UI/UX design, and the Discovery phase. Inoxoft focuses on partnerships with businesses and institutions from Education, Fintech, Logistics, and Healthcare. Inoxoft builds solutions of different sizes and provides expertise for startups, as well as is experienced to set up long-term partnerships with enterprises, large and medium-sized organizations. This USA-based web development company offers different models of cooperation depending on the client’s requirements, budget opportunities, and requested deadlines. The teams led by master project managers will surprised with the highest flexibility, fruitful communication, and tangible results every day. All professionals working at Inoxoft are reliable and knowledge-savvy experts who adore their work and know the value of clients’ satisfaction. Delivery at Inoxoft is an especially developed process that always guarantees successful releases of products to the clients. Iterative delivery and expectation management are two principles that help meet clients’ needs and create a solution useful for end-users, profitable for product owners, and interesting for the development teams. Inoxoft corporate culture is built on values of being sharp, flexible, able to realize, and willing to improve.
See all 1+ Case Studies
$50-$99/hr
$50,000+
10 - 49
Philadelphia, USA
Verified Client Review
Web App Dev for Real Estate Company
Reviewed by: Jawad Hussain Javed, IT Director at EntryCity View all 3 Reviews
5.0 (5 Reviews)
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Transforming Chaos to Clarity
Our specialty at PCApps is creating unique, reasonably priced database systems that support essential business functions. Our talented engineers and advisors have produced excellent outcomes for clients ranging from Fortune 500 companies to startups since 1992. We provide bespoke development, blockchain databases, SQL server optimization, database design, updates, and.NET application development. To satisfy customer needs, we focus on critical thinking, flexibility, and creative problem-solving. With the support of our talented designers and engineers, we can help you overcome obstacles in database solutions, including design advice and upgrades. We've provided scalable systems and handled many crises, whether they included migration, integration, updating, or redesign. The creation of specialized databases is essential to our operations. Since off-the-shelf databases don't always meet your demands, we design custom systems that complement your company's objectives. Small merchants and huge corporations alike are served by our custom solutions. Get in touch for more information and schedule a free consultation to learn more about our offerings!
View Practical Computer Applications Profile
$200-$300/hr
$1,000+
10 - 49
Waltham, USA
Verified Client Review
Management Software Dev for Vehicle Protection Services Co
Reviewed by: Joanne Wisnaskas, COO at Royal Administration Services View all 5 Reviews
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Delivering Digital Solutions That Last for a Data-Driven World
Intelegencia is a professional digital marketing and local SEO agency offering SEO, PPC, website development, and business consulting services to help businesses grow locally and online. Intelegencia is a trusted digital marketing and local SEO agency helping businesses improve their online visibility and attract local customers. We specialize in delivering data-driven marketing solutions that enable companies to dominate local search results and grow their customer base effectively. With a strong focus on local SEO, Google Business Profile optimization, website development, and digital marketing, Intelegencia supports startups, small businesses, and enterprises in achieving consistent local growth. Our team uses proven strategies tailored to your location and target audience to ensure maximum reach and measurable results. Our Local SEO & Digital Services Include: Local SEO & Google Maps Optimization Search Engine Optimization (SEO) Website Design & Development Pay-Per-Click (PPC) Advertising Social Media Marketing Online Reputation & Review Management Business Consulting & Digital Strategy Why Choose Intelegencia for Local SEO? Expertise in local search ranking strategies Location-based keyword optimization NAP consistency & citation building Transparent reporting and performance tracking Customized marketing solutions for local businesses Intelegencia is committed to helping businesses gain visibility in local search results, attract nearby customers, and convert traffic into revenue.
View Intelegencia Analytics Pvt. Ltd. Profile
N/A
$25 - $49
2,000+
Philadelphia, USA
4.8 (4 Reviews)
4.8 (4 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Meet your new product development department
As a group of problem solvers in business and technology, we understand that people are at the center of all we do. It just so happens that we work through technology. Please get in touch and start a discussion if your company needs assistance with an impending software project or wants to hire our experts.
View Curotec Profile
$50-$99/hr
$10,000+
50 - 249
Philadelphia, USA
Verified Client Review
Website Migration Services for Global Telecom Co
Reviewed by: Joseph Dolle, Director of Web Services at GTT View all 4 Reviews
4.7 (4 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Innovating beyond code...
We at Webashlar Software Solution Pvt. Ltd. do more than just develop software; we also solve issues, create experiences, and support companies just like yours in thriving in the rapidly evolving digital landscape. Having worked on more than 600 successful projects all across the world for more than 15 years, we've come to the straightforward conclusion that no two businesses are alike. In order to create solutions that are as distinctive as your tale, we genuinely take the time to comprehend your problems, ambitions, and objectives. Our Expertise 1.Frontend Development: We bring your ideas to life with sleek, responsive designs that captivate users on every device. 2.Backend Development: Behind every great app is a strong foundation, our robust server-side solutions keep your systems running seamlessly. 3.AR/VR Development: Step into the future with immersive experiences that engage, excite, and inspire. 4.UI/UX Design: Your users deserve more than functionality—they deserve an experience they’ll remember. We design with both in mind. 5.AI/ML Development: From automation to predictive analytics, we make your business smarter with cutting-edge technology. 6.Custom Software Development: Need something out-of-the-box? We build solutions tailored just for you. 7.Cloud Services: Scalable, secure, and future-ready, our cloud solutions help your business grow without limits. 8.Game Development: From 2D, 3D to AR/VR games, we create experiences that entertain, educate, and delight. 9.Staff Augmentation: Need extra hands? We’ve got the right talent to boost your team.
View Webashlar Software Solution Pvt. Ltd. Profile
$25-$49/hr
$1,000+
50 - 249
Philadelphia, USA
Verified Client Review
Mobile Game Development for Game Development Company
Reviewed by: Jean Charles Salvin, CEO & Founder at Monkey Learning View all 4 Reviews
4.9 (3 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Product UX | Creative & UX Design | Branding
We develop user-centered experiences, brand systems, and digital goods that are deliberate, organic, and made for actual people. Your vision requires careful design that is consistent across all touchpoints, whether you're developing a product, changing your brand, or attempting to make sense of an ever-increasing stack of decks, websites, features, and rules. We provide clarity, consistency, and momentum to your design, construction, and expansion, whether you're working with startups or well-established companies.
View Stera Global Profile
$100-$149/hr
$10,000+
10 - 49
Philadelphia, USA
Verified Client Review
App Development for Online Eyecare Distributor
Reviewed by: Paul Salsberg, President at Bright Optical View all 3 Reviews
Need help choosing a company?
Share your project requirements and we’ll connect you with the best-matched reactjs development companies – for free.
Get Matched Now
-
100% Free
No obligation and no hidden fees -
Save Time
We match you with the right companies -
Expert Support
Get help from our research experts
4.8 (3 Reviews)
4.8 (3 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Open Source Digital Innovation
Zivtech is a full-service web design and development company with a focus on open-source technologies that was established in 2008. We provide a broad spectrum of clients in numerous sectors with design, development, strategy, and project delivery services. Our goal is to use technology to empower people and organizations while offering our clients aesthetically pleasing, easily accessible, useful, and adaptable digital goods.
View Zivtech Profile
$150-$199/hr
$10,000+
10 - 49
Philadelphia, USA
Verified Client Review
Custom Drupal Development Lynchburg College
Reviewed by: Deborah Blanchard, Director of College Communications & Marketing at Lynchburg College View all 3 Reviews
5.0 (1 Reviews)
5.0 (1 Reviews)
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
1MDE is a leading full-service marketing company.
We specialize in developing a successful lead or sales generation platform for your company. Our first step is an analysis of your business, focusing on maximizing exposure through our services. We also analyze the market and competitors to ensure your company is at the top. We create an upscale and modern website using our strategists, SEO specialists, designers, developers, and marketers. We create unique company branding through video production trends. We handle every step from lead creation to conversion into sales. We have great relationships with leading specialists, allowing us to recommend and implement lead tracking systems according to your request. As 1MDE, we are not just a web development, digital marketing, or video production agency, but a leading name in the marketing business.
View 1MDE Profile
$50-$99/hr
$5,000+
50 - 249
Philadelphia, USA
Verified Client Review
It is great experience to work and hire 1MDE team!
Reviewed by: Polina Orlovska, Sales manager at ProImprover View all 1 Reviews
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Impactful Online Brand Platforms
Key Medium specializes in creating high-quality websites for government institutions, socially conscious companies, and nonprofits with hassle-free maintenance, an integrated web analytics dashboard, and a comprehensive approach. You're investing in a top-notch online experience that encourages interaction and expansion when you work with Key Medium on your website.
View Key Medium Profile
$100-$149/hr
$5,000+
2 - 9
Philadelphia, USA
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
A digital design and strategy studio
Ideas are coded by us. We create experiences. We find solutions to issues. We are hired by clients of all kinds to develop digital strategy plans and create responsive, user-friendly digital experiences from the ground up. We collaborate, learn, listen, and create. Finding the ideal solution, paying attention to details, and creating amazing websites and apps are all things we are enthusiastic about.
View Nimblelight Profile
$100-$149/hr
$5,000+
2 - 9
Philadelphia, USA
0.0 (0 Reviews)
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Products that customers love, built with precision
A tech consulting group providing resources to help you plan, develop, and scale your product for founders, operators, and doers. We meticulously construct your product as if it were our own.
View Precision Profile
$50-$99/hr
$10,000+
10 - 49
Philadelphia, USA
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Pushing the boundaries of digital, one pixel at a time.
MAK Digital Design specializes in creating strong, distinctive, and aesthetically pleasing eCommerce websites. MAK has led the way in creating custom eCommerce websites, starting with the creation of a proprietary eCommerce platform and currently focusing on Volusion web development and design. At MAK, we take pleasure in our ability to custom-tailor each website to precisely match your demands and preferences. Our specialty is building stunning, tidy, and useful websites.
View MAK Digital Design Profile
N/A
$1,000+
10 - 49
Bordentown, USA
0.0 (0 Reviews)
0.0 (0 Reviews)
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
18
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Helping solve complex business and social problems
Ycenter: Global Experiential Learning, Innovation Consulting, and Design Organization • Driven by values and a team of engineers, entrepreneurs, researchers, designers, and a bot. • Works with incubators and universities like Wharton Business School, Stanford, and Cornell for impactful Innovation training programs. • Focuses on Entrepreneurship and Open Data Innovation in Kenya for improving agricultural outcomes. • Offers programs to large multinational companies and top universities in India. • Consults clients like US Department of Commerce, large pharma companies, and food and beverage industry. • Digital Design studio builds e-commerce platforms, e-learning products, and AI-based chatbots for edtech.
View Ycenter Profile
$200-$300/hr
$5,000+
10 - 49
Philadelphia, USA
0.0 (0 Reviews)
11
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
11
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Design, develop and improve
Software development firm Atlasiko Inc. has experience providing a wide range of IT services and completing projects with the highest possible success rates. Our customer-focused strategy guarantees that the programs we deliver fulfill all of our clients' business goals and provide them with both anticipated and unanticipated competitive advantages. Regardless of how complex the scope is, we put a lot of effort into creating customized software with an abundance of features and excellent performance. Atlasiko Inc. is a broad-spectrum IT development and consulting firm that employs nearly every type of IT specialist with a wide range of talents, knowledge, and expertise in using the most recent tech stack for outstanding outcomes. Your forward-thinking concepts will be transformed into aesthetically pleasing and responsive solutions by our skilled developers and designers.
View Atlasiko Inc. Profile
$50-$99/hr
$50,000+
50 - 249
Philadelphia, USA
0.0 (0 Reviews)
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Elevate your eCommerce success
CartKnitter is a platform-agnostic ecommerce design and development firm headquartered in Orlando, Florida, with over 25 years of industry experience across 12+ popular ecommerce platforms. The company serves businesses of all sizes—from startups to enterprise—offering end-to-end services including custom strategy, UX design, website development, mobile app development, and SEO. Certified and recognized by leading platforms, CartKnitter builds personalized digital commerce solutions tailored to each client's vision, focusing on revenue growth and long-term customer loyalty.
View CartKnitter Profile
$25-$49/hr
$5,000+
10 - 49
Philadelphia, USA
0.0 (0 Reviews)
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
A Digital Marketing Agency You Can Trust. Take Control of Your SEO & AI.
SEO Locale is a Philadelphia-based full-service digital marketing agency founded in 2015 by industry veterans with over 15 years of experience. We deliver local, national, and international SEO, paid advertising management, web development, social media, email marketing, and reputation management—with complete transparency and zero runaround. Serving businesses across the United States, our results-first approach means every strategy is built to drive real growth. We measure our success by yours, which is why Philadelphia businesses and national brands trust SEO Locale as their long-term digital growth partner.
View SEO Locale Profile
Undisclosed/hr
$500+
10 - 49
Philadelphia, USA
Need help choosing a company?
Share your project requirements and we’ll connect you with the best-matched reactjs development companies – for free.
Get Matched Now
-
100% Free
No obligation and no hidden fees -
Save Time
We match you with the right companies -
Expert Support
Get help from our research experts
Why Companies Trust SelectedFirms?
SelectedFirms bridges the gap between businesses and digital service providers as a trusted B2B research and listing platform. With the trust of 14,000+ companies and a growing community of 1M+ users, we empower businesses with reliable insights to make confident decisions.
Human-verified companies
We manually review companies to ensure they meet our quality standards before they appear on the platform.
Research-driven rankings
We rank companies using a clear ranking methodology based on real client feedback, expertise, market credibility, and how well teams execute — not hype.
Always up-to-date insights
We regularly refresh listings with new reviews, case study updates, and market changes to keep decisions relevant.
Verified credibility signals
From verified badges to editorial reviews, we highlight companies that show real commitment to quality and transparency.
