Top ReactJS Development Companies in California
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Explore Reviewed ReactJS Development Companies in California — Find Skilled ReactJS Developers for Your Project
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
172 Companies
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California
4.8 (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
Igniting Digital Growth Through Cutting-Edge
Top-tier website design and development firm Thewebsitedesigns offers organizations countless ways to generate leads and accomplish surprising conversions. Every web design job we embark on is guaranteed to be flawless.
View The Website Designs Profile
N/A
$1,000+
10 - 49
Emeryville, USA
Verified Client Review
Mobile App & E-Commerce Site Dev for EDM Company
Reviewed by: Adante Fowler, CMO at EDM Company View all 1 Reviews
5.0 (1 Reviews)
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Delivering Innovative Solutions
Xavor Corporation is a multinational technology and management consulting company that was founded in 1995 with the goal of providing cutting-edge tech solutions to both startups and Fortune 500 companies. Although we have experience with web and mobile app development, Oracle Agile PLM, and Microsoft 365 technologies, we are now focused on utilizing AI and robotics to transform the healthcare sector. Based in Irvine, Shanghai, and Lahore - 44+ R&D Labs - 500+ Clients Served - 200+ Engineers and Experts - 1500+ Successful Projects - 88+ PhD Researchers & Thought Leaders - Microsoft Gold Partner - AWS Partner - Salesforce Consulting Parter
View Xavor Corporation Profile
$25-$49/hr
$10,000+
50 - 249
Irvine, USA
Verified Client Review
Agile-PLM Tool Dev for Cardiac Monitoring Solutions Company
Reviewed by: Dan Tylutki, COO at Cardiac Insight, Inc View all 1 Reviews
5.0 (1 Reviews)
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Leverage technology for your growth
Since more than ten years ago, Aspire Software Consultancy has specialised in offering services to its clients globally for all types of bespoke software development and maintenance. The company is a software outsourcing and offshore software development company.
View Aspire Software Consultancy Profile
$25-$49/hr
$1,000+
50 - 249
San Francisco, USA
Verified Client Review
Logistics Software Upgrade for Medical Device Firm
Reviewed by: Mans Johansson, CMO at Dentnet View all 1 Reviews
5.0 (1 Reviews)
5.0 (1 Reviews)
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Smarter eCommerce Solutions That Drive Sales
We deliver end-to-end eCommerce solutions designed to maximize online revenue. From user-friendly storefronts and ERP integrations to SEO, content marketing, and data analytics, our team ensures seamless operations and stronger visibility. With expert data management and site maintenance, we help businesses scale smarter, sell more online, and achieve sustainable digital growth.
View Nucleus Profile
$25-$49/hr
$10,000+
2 - 9
Hollywood, USA
Verified Client Review
Web design, development, and SEO for a manufacturer of automobile wheels
Reviewed by: Juan Martinez, Marketing & Brand Manager at ADV.1 Wheels View all 1 Reviews
4.8 (1 Reviews)
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Transforming Businesses with Innovative IT and Digital Solutions
Nextwebi IT Solutions Private Limited is a leading provider of custom IT and digital solutions, delivering high-performance technology services to businesses worldwide. With over nine years of experience, we specialize in end-to-end managed IT services, helping companies streamline operations, improve efficiency, and drive growth. Our expert team combines cutting-edge technologies with deep industry knowledge to create tailored software solutions, including business applications, web platforms, and process automation tools. Trusted by enterprises across multiple sectors, Nextwebi IT Solutions ensures reliable, scalable, and innovative solutions that empower organizations to achieve digital transformation and maintain a competitive edge in today’s fast-paced business environment.
View Nextwebi It Solutions Pvt Ltd Profile
< $25/hr
$1,000+
50 - 249
San Francisco, USA
Verified Client Review
Digital Marketing, PPC, and SEO Services for Web Development Firm
Reviewed by: Jeyaprabhakaran Peter, Data Analyst at Web Development Company View all 1 Reviews
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
Nearshore Software Development | 500+ Active Clients
BairesDev is an award-winning nearshore software development company trusted by 500+ clients, including Google, Pinterest, Adobe, J&J and more. Access 4,000 senior software engineers, experienced in 100+ technologies and programming languages. Choose from three flexible engagement models: staff augmentation, software development teams, and end-to-end software outsourcing. We’ve completed 1,200+ projects since 2009 for clients across 100s of industry sectors.
View BairesDev Profile
$50-$99/hr
$50,000+
1,000 - 9,999
San Francisco, 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
Creating Website Design & Development That Converts!
A top agency in the US and the UK, Pure Website Design builds responsive, unique websites that boost engagement and conversions. Our team is committed to building reliable, error-free websites with a smooth user interface and user experience that guarantee top performance on all devices. Being a top web design company, we provide a wide range of services. Our top-notch services, which include SEO-friendly websites, mobile-friendly and responsive designs, advanced conversion optimization, and custom web design and development, are intended to help clients in all industries grow and achieve their goals.
View Pure Website Design Profile
$50-$99/hr
$1,000+
50 - 249
Palo Alto, 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
Innovative IT Solutions for Businesses Worldwide
H.R. Software Solutions Pvt. Ltd. (HRSS), founded in 2008, is a trusted IT solutions provider delivering innovative technology services to clients in India and across the globe. With over a decade of experience, HRSS empowers businesses to achieve digital transformation, streamline operations, and enhance productivity through custom software, enterprise solutions, and advanced IT services. Our expertise spans enterprise software development, ERP solutions, CRM systems, AI-powered applications, cloud computing, and mobile/web solutions, tailored for industries such as healthcare, education, finance, manufacturing, and e-commerce. By leveraging cutting-edge technologies, we ensure scalable, secure, and future-ready solutions that drive measurable business outcomes. At HRSS, our team of software engineers, developers, IT consultants, and data analysts works collaboratively to deliver high-quality, innovative, and performance-driven solutions. We also provide cybersecurity services, IT consulting, and emerging technology integration, including AI, blockchain, and cloud-native applications, to keep businesses competitive. Committed to client-centric approaches, reliability, and excellence, HRSS has successfully built long-term partnerships worldwide, helping organizations transform digitally, optimize operations, and maximize ROI through robust, scalable, and intelligent software solutions.
View H.R Software Solutions Pvt. Ltd. Profile
$25-$49/hr
$10,000+
10 - 49
Ontario, 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
A technology vision with a human touch
Sibedge: Your Premier Partner in Global Software Engineering Solutions Sibedge is a leading software engineering firm specializing in digital transformation and innovative software solutions. With over 15 years of experience, we've successfully completed more than 350 projects across 27+ countries, making us a trusted partner for businesses worldwide. Our headquarters in Australia, combined with a network of skilled engineers globally, positions us to deliver high-impact services tailored to your unique needs. Our service framework is built around agile methodologies, ensuring flexibility and speed in project delivery. We offer five key services that prioritize collaboration and excellence: - Team Extension: Quickly augment your workforce with our remote teams of 3-5 engineers, ready to seamlessly integrate into your existing operations. - Agile Software Development: Experience effective project management that minimizes risks and maximizes business value through our agile approach. - Squads Product Development: Leverage our multidisciplinary squads, including UX designers and quality engineers, for comprehensive product development that drives continuous improvement. At Sibedge, we believe in strong partnerships. Our process includes understanding your needs, building dedicated teams, and managing smooth transitions to ensure your success. Choose Sibedge for your software development needs and watch your business thrive.
View Sibedge Profile
$25-$49/hr
$10,000+
50 - 249
Cupertino, 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
Technology Growth Partners.
Our specialty at Diginatives is providing innovative technological solutions that are customized to match the particular requirements of companies in a range of sectors. Our team of seasoned specialists, who are experts in AWS services, cybersecurity, custom software development, and artificial intelligence, is committed to promoting innovation and quality. We collaborate with businesses of all sizes, offering them the human capital and technological know-how required to prosper in the quickly changing digital environment. Our purpose is to empower our clients by making difficult problems simple and enabling them to confidently accomplish their objectives.
View Diginatives Profile
$25-$49/hr
$10,000+
10 - 49
Sunnyvale, 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
Transforming Ideas into Products.
Founded in 2010, PSD Markup is a leading provider of markup services globally, offering online design and development services in California. By combining our authentic processes, business domain knowledge, and the combined tech experience of over fifty people, we are able to provide our clients with high-quality solutions that are tailored to their specific needs.
View PSD Markup Profile
N/A
$1,000+
2 - 9
Fresno, 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
Business-First Approach to Software Development
We prioritize business demands over those of other companies, ensuring that state-of-the-art technology serves your organization's objectives. We excel in AI/ML and web engineering. Effective, high-quality architecture reigns supreme. We will ensure that your product is future-proof, scalable, and maintainable. Design is one of our guiding principles. Even for the most complex procedures, we design clear, unobtrusive user interfaces because we love simplicity. Since we firmly support the lean methodology, we will advise you to invest as little money as possible in the initial iteration of your product.
View Yellow Profile
$50-$99/hr
$1,000+
50 - 249
San Francisco, 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
IT Solutions That Match Your Needs!
We serve two distinct regions: the United States and the Gulf Cooperation Council. NCIT Solutions' goal is to offer affordable, practical outsourcing solutions. We provide you with offshore services that are customized to meet your unique needs. Our affordable IT solutions give you a competitive advantage and produce noticeable outcomes. We can handle all of your IT demands because we work with a wide variety of systems, including Linux, UNIX, Solaris, Windows, iOS, and Android. Our software team's primary skills include software design and graphic design.
View NCIT Solutions Profile
N/A
$1,000+
10 - 49
McCook, 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
Innovative Tech Solutions for Web, MMO, and HR Startups
Since 2005, our expert engineers and designers have launched MMO and web projects. Delivering 25+ long-term solutions for mid to large enterprises—including digitalization, client services, and S(P)aaS—we also innovate in HRTech and HCM startups. We blend creativity and technology to drive business growth and digital transformation.
View Atlantis Profile
$50-$99/hr
$1,000+
10 - 49
Newport Beach, 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
IT consulting done correctly!
Diatom Enterprises is a leading custom software development company based in Latvia, originally founded in Canada. With over 18 years of experience, we specialize in delivering high-quality, scalable software solutions for businesses across industries worldwide. Our expertise spans .NET, Blazor, JavaScript, React, Angular, Node.js, and Ruby on Rails, empowering us to build dynamic web, mobile, and desktop applications tailored to client needs. At Diatom Enterprises, we blend innovation, technical excellence, and affordability to help businesses accelerate digital transformation. Trusted globally, we believe in long-term partnerships—many of our clients have grown into friends through years of successful collaboration and shared success.
View Diatom Enterprises Profile
$25-$49/hr
$10,000+
50 - 249
Walnut Creek, USA
0.0 (0 Reviews)
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Hire the top 3% of freelance talent
Toptal is an exclusive network of the best talent available today.Top corporations rely on us for their most crucial endeavours because we are problem solvers that appreciate integrity.Toptal assists businesses in achieving the scale, execution speed, and agility required to succeed in a market where innovation and competition are on the rise.Toptal, the largest entirely remote company in the world, was founded in 2010 and has served over 10,000 clients. Its worldwide talent network includes over 10,000 individuals in more than 100 countries.Visit www.toptal.com for additional details.
View Toptal Profile
$100-$149/hr
$50,000+
1,000 - 9,999
San Francisco, USA
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Reforming Tomorrows Tech
Greetings from Tech Reforms, your go-to source for complete mobile app development and web design. Change your online presence and establish a stronger connection with your audience. Don't allow your company suffer from a lack of tech skills. To find out how we can assist you in reaching your objectives, get in touch with us right now.
View Tech Reforms Profile
$25-$49/hr
$5,000+
10 - 49
Los Angeles, USA
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Partner in Creation to Promotion!
They are a technology advice and service supplier with Noida headquarters and the US, UK, UAE, Saudi Arabia, and Kuwait branches. With knowledge, passion, and dedication, they have helped several companies across sectors to become not only effective but also high-performance and useful organizations. Vipra has supplied tiny to large-scale companies across fields, whether it’s just a tiny creation or complicated topic automation, Vipra can bring over the scheduling role, the crew is really great at it. They have key internet and mobile application development knowledge, eCommerce solution, high-end company portals, ERP, CRM, and full digital marketing.
View Vipra Business Consulting Service Profile
$25-$49/hr
$5,000+
50 - 249
Walnut, USA
0.0 (0 Reviews)
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Setting the Standard for Staff Augmentation and IT Solutions
Cyber InfraStructure INC. (CIS), founded in 2003, is a global IT consulting and staff augmentation leader with offices in Central India, the USA, and the UK. We specialize in delivering top-tier technology solutions, helping businesses scale their teams and optimize operations efficiently. With experience serving over 2,100 clients across 100+ countries, we support industries including education, finance, travel, retail, manufacturing, gaming, and healthcare. CIS is recognized for excellence, holding CMMI Level 3, ISO 9001:2018 certifications, and partnerships such as Microsoft Gold Partner, Magento Silver Solution Partner, and memberships with Drupal and Joomla. Our focus is delivering innovative, reliable IT solutions that drive measurable business results.
View CIS Profile
< $25/hr
$10,000+
250 - 999
San Jose, USA
0.0 (0 Reviews)
0.0 (0 Reviews)
16
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
16
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Make the right Choice
AlphaBOLD is a global leader in next-generation business transformation and consulting. We enable clients all over the US to navigate their digital transformation. With collectively three decades of experience managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do this by enabling the enterprise with Dynamics 365 or Oracle NetSuite core, which helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovative ecosystem. AlphaBOLD implements Dynamics 365, SharePoint, Power BI, Oracle NetSuite, and many other custom solutions for its customers. From end-to-end digital implementations to planning, design, development, and roll-out of various business applications, BOLDEnthusiasts can deliver it all. AlphaBOLD has developed vertical-specific solutions for Construction, Manufacturing, and Retail companies to help them reach their true potential. AlphaBOLD also offers add-ons that can be installed easily on existing systems and help boost the productivity of an organization significantly. Our add-ons include BOLD-HI, BOLDSync etc.
View AlphaBOLD Profile
$25-$49/hr
$5,000+
50 - 249
Carlsbad, USA
0.0 (0 Reviews)
15
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
15
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Marketing for Digital Natives
As a world leader in digital services, Grazitti Interactive transforms organizations via the use of social media, cloud, mobile, and artificial intelligence technology. Grazitti has been enabling businesses with cutting-edge SaaS products, services, and solutions since 2008. We have enabled more than 1100 different clients, including Fortune 500 giants, fervent non-profits, and agile SMEs, thanks to our dynamic staff of more than 1200 tech experts spread across the US, India, Australia, Canada, and Singapore.
View Grazitti Interactive Profile
$25-$49/hr
$10,000+
1,000 - 9,999
Mountain View, USA
5.0 (72 Reviews)
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5.0 (72 Reviews)
0
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
0
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
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Empowering Digital Commerce Transformation
We are Magneto. A team of digital commerce experts working with manufacturers, wholesalers and retailers globally, turning ideas into unique customer & content-centric experiences, using a platform-agnostic approach. Since 2010, we have been architecting digital commerce solutions for our clients providing innovative solutions, managing delivery and accelerating the speed at which leading B2B, B2C, D2C and marketplace brands can scale with flexibility their online offerings. We empower enterprises with industry-leading composable commerce solutions through a range of partners which offer PIM, DAM, OMS, MDM, DEM, CRM, CX, omnichannel sales, and marketing business needs. We push ourselves. We push technology. And we push the boundaries of conventional commerce.
See all 7+ Portfolios
$25-$49/hr
$25,000+
50 - 249
New York, USA
Verified Client Review
CRM & Web Development for Promotional Products Company
Reviewed by: Meizi Yu, Production & Logistics at Product Media Group View all 72 Reviews
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