Top 10 Javascript Development Companies to Outsource

JavaScript, the ubiquitous language of the web, continues to power the digital world. From dynamic front-ends and interactive user experiences to complex server-side applications, JavaScript remains an indispensable tool for developers. 

This curated list showcases the top 10 JavaScript development companies meticulously selected based on their proven expertise, innovative solutions, and commitment to delivering exceptional results. 

These companies represent the best in the industry, offering a diverse range of services, from custom application development and enterprise-grade solutions to consulting and maintenance. 

Whether you’re a startup seeking to build a cutting-edge product or an established enterprise looking to modernize your technology stack, this guide will assist you in finding the ideal partner to bring your JavaScript projects to life.

Top Javascript Development Companies to Outsource

Name	Cost(Per hr)	Rating
Technext	$25 – $49	5.0
The Gnar Company	$150 – $199	5.0
Themewagon	$25 – $49	5.0
Purrweb	$25 – $49	5.0
Blazity	$50 – $99	5.0
Materialize Labs	$100 – $149	5.0
Xfive	$50 – $99	5.0
Brainhub	$100 – $149	4.9
ImageX	$100 – $149	4.9
The Software House	$50 – $99	4.9

Technext

Technext stands out as a highly trusted and dependable javascript development company, boasting a remarkable track record of successfully completing 400+ projects and partnering with 250+ clients over the past 12 years. With this wealth of experience, Technext is your perfect partner to turn your vision into reality.

The company’s expertise shines through its flagship products, such as Mailbluster, Gradnet, and OneSuite, which collectively serve over 100,000 businesses globally. This success cements Technext’s position as a leader among React JS development companies.

Service Quality and Timeliness

With over a decade of industry experience, Technext has emerged as a key player among Javascript development agencies. Clients consistently praise the team’s commitment to quality, timeliness, and exceptional product management. Highlights of client feedback include professional communication, responsiveness, and superior code quality.

Technext’s Services

Backed by some of the best javascript developers in the world, Technext is equipped to handle your most ambitious projects. Whether you need a custom web or mobile app, wish to integrate AI into your product, or want to build an offshore team, Technext has you covered.

Core Services

• IT Staff Augmentation
• Web Application Development
• Mobile Application Development
• UI/UX Design
• Startup Services
• AI, ML, and IoT Services

Technologies: React JS, Next JS, Node JS, React Native, Tailwind CSS, Bootstrap

Work Environment:

At Technext, employees thrive in a learning-oriented culture supported by a friendly environment and collaborative co-workers. On Glassdoor, employees commend Technext for its flexibility, including options for remote work and customized working hours.

Costing: $25 – $49 / hr

Location: 2810 N Church St, PMB 38894 Wilmington, DE, US 19802-4447

Bangladesh: Level 13, Elegant Shopping Mall, Zindabazar, Sylhet 3100

Phone: +1 302 433 6002

Email: projects@technext.it

Website: https://technext.it/

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The Gnar Company

The Gnar Company is a Boston-based, US-headquartered javascript development agency with extensive enterprise-level software engineering expertise. Their team boasts deep product development knowledge and works closely with software leaders to fill resource gaps and provide diverse skill sets tailored to project needs.

Quality and Timeliness

The Gnar Company stands out for its strong client relationships and dedication to continuous improvement. Clients frequently praise the team’s professionalism, approachability, availability, and in-depth expertise, which foster trust and collaboration throughout projects.

Key Services 

At the heart of Gnar’s operations is their “Quality Software, Faster” approach. This streamlined process ensures swift onboarding and the delivery of production-ready code within the first week. Their services include:

Custom Software Development

• Discovery & Product Design
• Web App Development
• Mobile App Development
• Website Development
• Enterprise App Development
• Support & Maintenance

User Experience & Brand Design

• UX/UI Product Design
• UX Audits & Assessments
• Mobile App Design
• Wireframing & Prototyping
• Design Systems
• Brand Design

Development Process Consulting

• Technology Roadmapping
• Process Analysis & Design
• Code Review & Analysis
• Technical Due Diligence

Work Environment 

Team members at The Gnar Company appreciate the organization’s emphasis on work-life balance, a transparent culture, and strong communication. However, some concerns have been noted regarding growth opportunities, consulting roles, and management practices, suggesting areas for further development to enhance employee satisfaction.

Costing: $150 – $199 / hr

Location: 117 Kendrick Street, Suite 300, Needham, MA 02494

Phone: (617) 202-2222

Email: hi@thegnar.co

Website: https://www.thegnar.com/

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ThemeWagon

ThemeWagon is a leading marketplace for free and premium website templates. Among its most popular offerings are Falcon, Phoenix, and Sparrow. In addition to templates, ThemeWagon provides custom development services and has successfully delivered over 100 javascript projects to date.

By helping clients in the US and Europe save up to 40% on costs, ThemeWagon has solidified its reputation as a top javascript development company. Customers can also hire expert javascript developers directly from ThemeWagon for their projects.

Service Quality and Leadership

In the Bootstrap market, ThemeWagon holds the number one position. Its templates are highly regarded for their innovative designs, robust functionalities, and outstanding support, making them a favorite among clients worldwide.

Key Services

• Sleek Admin Dashboard Templates
• User-Friendly Landing Page Templates
• Custom React Development Services
• Expert React JS Developer Hiring

By blending cutting-edge design trends with best-in-class UI/UX principles, the ThemeWagon team ensures that every product elevates and enhances their clients’ web presence.

Work Culture

Employees at ThemeWagon praise its positive and creative work environment, emphasizing collaboration, open communication, and opportunities for continuous learning. While differing opinions during decision-making occasionally present challenges, the team’s collective focus on innovation fosters growth and success.

Costing: Avg. hourly rate $25 – $49 / hr

Location: 2810 North Church Street, PMB 38894, Wilmington, DE 19802

Email: support@themewagon.com

Weblink: themewagon.com

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Purrweb

Purrweb is a software development company specializing in creating Minimum Viable Products (MVPs) for startups and businesses. Since its inception in 2014, Purrweb has completed over 300 projects, emphasizing a UX-driven approach and a typical time-to-market of three months. The company boasts an average rating of 4.9 across 224 reviews on multiple platforms, reflecting high client satisfaction.

Service Quality: According to client reviews on Clutch, Purrweb is praised for its professionalism, timely delivery, and high-quality output. Clients appreciate their transparent communication and ability to understand and execute project requirements effectively.

Services of Purrweb: – UI/UX Design

• Mobile Development
• Web Development
• MVP Development

Technologies: Purrweb utilizes modern frameworks, including: – JavaScript

• React Native
• React.js
• Electron.js
• Node.js
• AWS

Focus: Purrweb focuses on delivering high-quality MVPs for startups, ensuring a quick time-to-market and adherence to budget constraints. Their expertise spans various industries, including fintech, healthcare, travel, and more. 

Work Environment: While specific reviews on Glassdoor are limited, available information suggests that Purrweb maintains a collaborative and supportive work environment, fostering professional growth and development.

Costing: $25 – $49 

Location: 105/3, Pushkin Street, Omsk, Russia

Phone: +1 484 460 8069 – 

Email: hello@purrweb.com

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Blazity

Blazity is a specialized software development company focusing on Javascript, Next.js and React technologies. Since its establishment, Blazity has been recognized for its expertise, notably being named among the Top Javascript Developers globally.

Service Quality: According to client reviews on Clutch, Blazity is praised for its professionalism, timely delivery, and high-quality output. Clients appreciate their transparent communication and ability to understand and execute project requirements effectively.

Services of Blazity: – Custom Development

• Web Applications
• Code Audits
• Performance Optimization
• Next.js/React Updates
• Enterprise Architecture
• Consulting
• Migration to Next.js/React
• Trainings
• Ecommerce in Next.js
  • Storefront Migration
  • Storefront Optimization
• Generative UI
  • Chatbots
  • Knowledge Bases
  • Streaming Components

Technologies: Blazity utilizes modern frameworks, including: – JavaScript

• Next.js
• React.js
• TypeScript
• Tailwind CSS

Focus: Blazity focuses on delivering high-quality web solutions using Next.js and React, ensuring quick time-to-market and adherence to budget constraints. Their expertise spans various industries, including SaaS, eCommerce, and AI-driven applications. 

Work Environment: Blazity promotes a collaborative and supportive work environment, emphasizing teamwork, excellence in technology, passion for work, client-centric approaches, and transparent communication. They offer benefits such as Medicover health coverage, Multisport cards for physical activity, and 26 paid days off to support employee well-being. 

Costing: $50 – $99

Location: Domaniewska 44, 02-672 Warsaw, Poland

Email: contact@blazity.com

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Materialize Labs:

Materialize Labs is a software development and AI consulting agency based in Los Angeles, California. Specializing in building disruptive applications and AI-driven solutions, they collaborate with forward-thinking clients to transform ideas into impactful digital products. Their team comprises AI-focused engineers, designers, product strategists, and QA specialists dedicated to delivering scalable and cost-effective solutions. 

Service Quality: Materialize Labs has received mixed reviews on Five.Reviews, with an average rating of 3.67 out of 5 based on 12 assessments. Positive feedback highlights their high-quality work, efficient communication, and professionalism. However, some clients have expressed dissatisfaction regarding project outcomes and customer service. 

Services of Materialize Labs: – **Strategy & Planning:**

• Market Research
• Competitor Analysis
• User Stories
• User Validation
• Design:
  • Aesthetic & Functional Design
  • UI/UX Design
• Backend Engineering:
• Frontend Engineering:
• Mobile Engineering:
• Quality Assurance:

Technologies: Materialize Labs utilizes a diverse tech stack, including: – JavaScript

• React
• Node.js
• Python
• AWS
• Docker
• Kubernetes

Focus: The company emphasizes developing scalable products using modern methods, tools, and workflows. They are particularly focused on AI-driven solutions, aiming to harness the power of AI for unparalleled digital products. 

Work Environment: According to employee reviews on Glassdoor, Materialize Labs is praised for its good company culture, great teamwork, and competent management. Employees also note a favorable work-life balance. 

Costing: $100 – $149

Location: Los Angeles, California 90402, US

Phone: (310) 853-2611

Email: inquiry@materializelabs.com

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Xfive

Xfive is a digital product studio specializing in web application development, e-commerce solutions, and website redesigns. Established in 2004, the company has over 50 employees and charges approximately $70-150 per hour for its services. 

Service Quality: According to client reviews on Clutch, Xfive is praised for its professionalism, timely delivery, and high-quality output. Clients appreciate their transparent communication and ability to understand and execute project requirements effectively. 

Services of Xfive: – Web Application Development

• E-commerce Solutions
• Website Redesign
• MVP & Web App Development
• Website Maintenance
• Product Discovery
• CMS Integration
• Data Migration

Technologies: Xfive utilizes modern frameworks and technologies, JavaScript, React.js, Vue.js, Angular, Node.js, Ruby on Rails, PHP, Python

Focus: Xfive focuses on building long-term partnerships with clients, delivering scalable and effective digital solutions across various industries, including media, financial services, education, and technology. 

Work Environment: While specific reviews on Glassdoor are limited, available information suggests that Xfive maintains a collaborative and supportive work environment, fostering professional growth and development.

Costing: $50 – $99

Location: ul. Starowislna 46, 31-035 Krakow, Poland

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Brainhub:

Brainhub is a software engineering company specializing in web, mobile, and desktop application development, as well as cloud engineering and DevOps. Established in 2014, they have a strong focus on JavaScript technologies, particularly React and Node.js. With a team of over 50 professionals, Brainhub has completed numerous projects across various industries, maintaining a 4.9 out of 5 rating on Clutch from 42 reviews.

Service Quality: Clients commend Brainhub for their proficiency in JavaScript, especially React and React Native, as well as their effective communication skills in English. Their expertise has been a significant asset in the successful execution of projects, particularly in developing key functionalities. 

Services of Brainhub: – Web Development

• Mobile App Development
• Desktop App Development
• Cloud Engineering & DevOps
• Digital Product Development
• UX/UI Design
• Generative AI Development
• Legacy App Modernization
• Discovery Workshops

Technologies: Brainhub utilizes a diverse tech stack,  JavaScript, TypeScript, Node.js, React, React Native, .NET, Electron, AWS

Focus: Brainhub focuses on accelerating software development processes by providing high-performing teams of vetted software engineers. They emphasize building industry-specific solutions in sectors such as banking, fintech, and biotech. 

Work Environment: Employees describe Brainhub as a place where “lots of great minds come together and do great stuff.” However, some note that, as a software house, the company does not have its own product. 

Costing: Specific hourly rates for Brainhub are not publicly listed on Clutch or their official website. Potential clients are encouraged to contact the company directly to obtain detailed pricing information tailored to their project requirements.

Location: ul. Matejki 12, 44-100 Gliwice, Poland

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ImageX 

ImageX is a technology and web agency specializing in Drupal development, migration, and web services. Founded in 2001, the company has a global reach with offices in Canada, Ukraine, and Brazil. ImageX has collaborated with notable clients such as Disney, Apple, YMCA, Samsung, and Adidas, delivering web experiences that address complex digital challenges. citeturn0search0

Service Quality: Clients have consistently praised ImageX for their professionalism, punctuality, and creative design capabilities. The company holds a 5.0 out of 5 rating on Glassdoor, indicating high employee satisfaction, which often correlates with quality service delivery. citeturn0search1

Services of ImageX: –

• Search Engine Optimization (SEO)
• Design:
• Development:
  • Drupal Development
  • Migration Services
• Evolve
  • Ongoing Support and Maintenance

Technologies: ImageX utilizes a robust tech stack, including: – JavaScript

• PHP
• Linux Server
• Azure Platform
• Drupal

Focus: The company focuses on delivering enterprise-level Drupal solutions, emphasizing user experience, content strategy, and visual design to create meaningful digital experiences. citeturn0search7

Work Environment: Employees describe ImageX as an excellent company with amazing people and a great job environment. The company has received a 5.0 out of 5 rating on Glassdoor, with 99% of employees recommending it as a workplace. citeturn0search1

Costing: $100 – $149

Location: 163 West Hastings Street, Vancouver, V6B 1H5, Canada citeturn0search5

Phone: +1-778-785-1547 

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The Software House

The Software House is a custom software development company founded in 2012, specializing in accelerating software delivery for technology-first companies. With a team of over 300 professionals, they have collaborated with more than 160 companies, achieving significant milestones such as a 400% revenue increase and a 93.5% reduction in cloud costs for their clients. citeturn0fetch1

Service Quality: Clients commend The Software House for their high code quality and innovative solutions. They are recognized for their developers’ expertise and the ability to deliver projects efficiently, contributing to enhanced business outcomes. citeturn0search5

Services of The Software House: –

• Testing new technology initiatives
• Creating strategies to enhance key metrics
• Identifying and eliminating delivery bottlenecks
• Efficient Development
  • Improving digital experiences
  • Fixing product performance issues
  • Reducing cloud costs
  • Modernizing technology stacks
• Specialists On Demand
  • Expediting development processes
  • Filling talent gaps
  • Scaling engineering teams

Technologies: The Software House employs a diverse tech stack, including: – JavaScript

• Node.js
• React
• PHP
• Symfony
• AWS
• Azure
• Docker
• Kubernetes

Focus: The company focuses on enhancing software delivery processes for scale-ups and SMBs, enabling them to release superior products more rapidly and cost-effectively. Their emphasis is on delivering business results through efficient product development. 

Work Environment: Employees rate The Software House 4.6 out of 5 stars, with 89% recommending it as a workplace. The company is praised for its collaborative environment, opportunities for professional growth, and supportive management. 

Costing: The Software House’s services are priced at an average hourly rate of $50. 

Location: ul. Pszczyńska 69, 44-100 Gliwice, Poland

Phone: +48 32 700 38 38 

Email: hello@tsh.io