Top ReactJS Development Companies in Ottawa
Goodfirms has reviewed 11 ReactJS Development Companies in Ottawa as of September 2026. The top-ranked firm is AENYX (0.0 stars, 0 verified reviews, NA, founded 2026, Ottawa). Across the category, the median hourly rate is $25, median client rating is 0, and 23% of firms employ 50+ members. Explore the vetted ReactJS Development Companies in Ottawa below, compare their strengths, and connect with the provider best suited to your requirements.
Goodfirms has verified 11 ReactJS Development Companies in Ottawa - part of 9,007+ React.js Development Companies, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.
Top 10 at Glance
Compare the highest-ranked firms first side by side.
List of Best ReactJS Development Companies in Ottawa
Sponsored
Using AI Tools
Claude
AENYX is a custom software agency that fixes broken software, then keeps it fixed.Most of the software we get sent is broken because nobody's been looking at it. Whoever built it moved on, dependencies aged, the operating system moved underneath it, and small failures collected in crash logs nobody reads. By the time it's obviously ... read AENYX reviews & insights
AENYX is a custom software agency that fixes broken software, then keeps it fixed.Most of ... read AENYX reviews & insights
NA2 - 92026Ottawa, CanadaWhy AENYX?
- Direct access to the engineer. No middle layer.
- Fixed-fee scope. One number, not a range.
- Your code, your infra. We never hold it hostage.
At NetFore, we believe that there’s more to developing outstanding software than being good at writing code – much more. For every business or technology challenge that comes our way, we apply a potent combination of brain power, problem solving skills, and experienced leadership to devise and implement an elegant and cost-effective solution to address ... read NetFore Systems reviews & insights
At NetFore, we believe that there’s more to developing outstanding software than being good at ... read NetFore Systems reviews & insights
< $25/hr10 - 492010Ottawa, Canada
Webocity is a vertically integrated agency which infuses its creative passion for website design with the craft of branding and digital advertising to help small and mid sized brands and businesses to be as loud as their bigger competitors. We approach every web design, development and digital marketing project with objectives in mind and we ... read Webocity Inc reviews & insights
Webocity is a vertically integrated agency which infuses its creative passion for website design with ... read Webocity Inc reviews & insights
$50 - $99/hr2 - 92017Ottawa, Canada
Using AI Tools
ChatGPT- Claude
Gemini
GitHub Copilot
Perplexity
EspioLabs is the software engineering, AI R&D, creative technology, and growth marketing division of Cylix Applied Intelligence. We design and build custom software, intelligent applications, digital platforms, and human-centred experiences for organizations looking to create new products, modernize systems, or put emerging technologies to practical use.Our capabilities include full-stack software development, AI and machine learning, ... read EspioLabs reviews & insights
EspioLabs is the software engineering, AI R&D, creative technology, and growth marketing division of Cylix ... read EspioLabs reviews & insights
$150 - $199/hr10 - 492021Ottawa, CanadaWhy EspioLabs?
- Canadian Team
- Strategic Partnerships
- AI and engineering under 1 roof
Sharkbyte is a custom software development company based in Ottawa, ON, with a team spread across Canada and the US. We provide software consulting, custom software development and staff augmentation to startups and organisations across North America. We pride ourselves on guiding our clients to success — and creating intelligent solutions that minimize risks and ... read Sharkbyte Inc. reviews & insights
Sharkbyte is a custom software development company based in Ottawa, ON, with a team spread ... read Sharkbyte Inc. reviews & insights
$100 - $149/hr2 - 92017Ottawa, Canada
We are UniRidge — a solution agency that solves business challenges with technology. We create innovative software to help our clients become industry leaders.
We are UniRidge — a solution agency that solves business challenges with technology. We create ... read UniRidge reviews & insights
$25 - $49/hr10 - 492016Ottawa, Canada
Using AI Tools
- ChatGPT
- Claude
- Gemini
Cursor
Lovable- + 1 More
ITExtension is a custom software development company helping startups, growing businesses, and established organizations build scalable web, mobile, SaaS, and AI-powered solutions. With 15+ years of software development experience, we provide end-to-end product development from strategy and UI/UX design to development, testing, deployment, and ongoing support.Our expertise includes custom software development, SaaS development, web application ... read IT Extension reviews & insights
ITExtension is a custom software development company helping startups, growing businesses, and established organizations build ... read IT Extension reviews & insights
$25 - $49/hr50 - 2492008Ottawa, CanadaWhy IT Extension?
- 18 Years of Experience
- Business-Focused Solutions
- Long-Term Partnership
Using AI Tools
- ChatGPT
- Claude
- Gemini
Sun Cluster Inc. is a software engineering company based in Ottawa, Canada, helping businesses, traders, fintech teams, and growing organizations build reliable digital systems that save time, reduce manual work, and improve customer experience.We specialize in custom software development, business websites, mobile apps, customer portals, workflow automation, API integrations, CRM automation, AI chatbots, AI customer ... read Sun Cluster Inc. reviews & insights
Sun Cluster Inc. is a software engineering company based in Ottawa, Canada, helping businesses, traders, ... read Sun Cluster Inc. reviews & insights
$25 - $49/hr2 - 92026Ottawa, CanadaWhy Sun Cluster Inc.?
- Affordable Startup & Friendly Solutions
- AI and Custom Software
- Practical Business Automation
Ottawa Tech Heroes (OTH) is a leading Web Development and Digital Marketing Agency that specializes in custom web development solutions, social media marketing, search engine optimization (SEO) services, logo design, Software development, Mobile App Development, Web Designing, Desktop Application, Web Hosting Solutions and a variety of other digital marketing services. With a team of experienced ... read Ottawa Tech Heroes reviews & insights
Ottawa Tech Heroes (OTH) is a leading Web Development and Digital Marketing Agency that specializes ... read Ottawa Tech Heroes reviews & insights
$25 - $49/hr2 - 92019Ottawa, Canada
We, at AMMAG, provide secure, cost-effective and exceptional quality Web3/Blockchain-based solutions with our specialization in different Blockchains, Smart contract development, DeFi, Fintech Platforms, Decentralized/ Centralized exchanges development, 2D & 3D Games development using Unity or Unreal Engine, P2E/P2P Game development, AR/VR Games development, Artifical Intelligence, Crypto trading bots, NFT Platforms, and much more! With professional ... read AMMAG Technologies reviews & insights
We, at AMMAG, provide secure, cost-effective and exceptional quality Web3/Blockchain-based solutions with our specialization in ... read AMMAG Technologies reviews & insights
$25 - $49/hr50 - 2492017Ottawa, Canada
SITE CODEZ is an industry leader and a professional Ottawa based Web Design Agency that offers Website Designing, Custom Web Development, Search Engine Optimization (SEO), Social Media Marketing, Mobile App Development, and Secure Hosting Solutions.
SITE CODEZ is an industry leader and a professional Ottawa based Web Design Agency that ... read SITE CODEZ reviews & insights
< $25/hr10 - 492009Ottawa, Canada
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Ottawa · $0-24/hr