Best Quality Assurance Companies in United States
List of the Top United States Quality Assurance Firms
We work with early-stage entrepreneurs and startups, Series A and growth stage companies, provider innovation departments, healthcare VC's and boutique consulting companies.
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$25,000 +
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50 - 249
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$50 - $99 / hr
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US, New York City
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With over 50 developers and 13 years of experience, Hybrid Web Agency is a software development firm and IT consulting partner. We offer full-cycle development for tech startups and companies aiming to dominate their respective markets.
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$1,000 +
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10 - 49
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< $25 / hr
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Inoxoft is an international software development company with offices in Lviv, Philadelphia and Tel Aviv. We have successfully created and implemented a number of excellent software products for clients from the USA, UK, Israel, Switzerland, Sweden, Norway, Germany, Australia, Canada and the Netherlands.
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$25,000 +
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50 - 249
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$50 - $99 / hr
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US, Philadelphia
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Evaluate your technology choices, optimize your processes and frame. Solve modern challenges with cutting-edge technologies in AI, data science, and IoT. We help companies like HERE Technologies, LG, PTV Group, KIA, Swissquote Bank, and many others increase their IT/R&D capacity and build future-oriented products.
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$100,000 +
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1,000 - 9,999
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$50 - $99 / hr
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UA, Lviv
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Inventcolabs is a leading-edge IT services company with a worldwide presence. With years of business-critical exposure serving 200+ businesses, we are regarded as one of the most valued providers in the domain. We are specialists in native and hybrid mobile, consumer and enterprise web, E-commerce, and CRM solutions and have been catering to businesses with end-to-end consulting, development, and upgradation solutions. With our offices in the USA, Qatar, and UAE, we have been serving businesses across all major domain verticals to make a significant mark of IT innovation at the global length
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$10,000 +
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50 - 249
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$50 - $99 / hr
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US, Somerset
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At KodeSavy, we believe in the power of creativity and innovation. Our mission is to help businesses leverage the latest technological advancements to achieve their goals and stay ahead in a competitive market. We understand that every client is unique, and we take the time to truly understand their vision and requirements. Our expert team works closely with clients, translating their ideas into functional, user-friendly, and visually appealing applications.
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$10,000 +
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10 - 49
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$50 - $99 / hr
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What should you know before hiring Blockchain Developers from Blockchain Development companies or Freelance platforms.
Leewayhertz is an enterprise & startup software development company that creates digital solutions based on new technologies to help businesses simplify the process of implementing technology products. Such companies stick to the "you dream it: we build it" motto in their work.
Founded in 2007, the company successfully entered the market and has since received a large number of awards (e.g. TOP Developers 2019, TOP loT App developers 2020, TOP App Developers USA 2019, etc.). Leewayherts is trusted by major brands like Siemens, Disney, Pepsico, and others. Its experience is more than 30 Fortune 500 companies, which hints at the impeccable performance.
Leewayhertz’s blockchain developers have worked in various industries including consumer electronics, financial technology, healthcare, insurance, logistics, tourism, manufacturing, education, and EdTech.
What Leewayhertz Offers to Its CustomersThe company has plenty of blockchain solutions and additional features to choose from as follows:
- Blockchain applications. In this sector, the firm provides a range of services from consulting to deployment, maintenance, and migration;
- Blockchain consulting. Need a comprehensive roadmap? Leewayhertz will help you launch a successful product, i.e. choose a blockchain platform and come up with an idea for the project. It will also analyze the potential of your idea and determine the right solution for implementation;
- Smart contract development. Businesses turn to smart contract development for event automation, autonomy, savings, and accuracy. Blockchain developers create smart contracts architectures, audit, optimize, design, and develop them;
- Blockchain wallet. Leewayhertz's specialists take a smart approach to blockchain wallet application development. With this solution, any business will be able to track transactions and check the balance at any time;
- Stablecoin development. Cryptocurrency developers are experts in creating stable coins and using an intelligent approach when creating a development strategy.
Leewayhertz certified specialists build products like AI-based face mask detection systems, telemedicine software and apps, presence detection systems, healthcare software, and many others.
Leewayhertz uses the following latest technologies in all development processes:
- Machine learning;
- Computer vision;
- Blockchain;
- Voice skills;
- Robotic process automation;
- Artificial intelligence, etc.
What is the blockchain development process? For Leewayhertz, this means defining the problem, goal, and the right platform. This also includes forming an idea and business requirements, as well as developing a proof-of-concept. Moreover, it's a clear structure of actions, coordinated work of specialists, and constant (effective) communication with clients.
Leewayhertz: Working with ClientsA successful software application is not only the result of the work of experienced and qualified specialists - but it's also about effective business communication channels. That's why Leewayhertz uses a variety of ways to communicate with their clients, e.g. Slack, Zoom, and Jira Support. In their turn, Confluence and Jira are also used internally in the company.
Thus, Jira helps blockchain developers plan and allocate tasks between teams, track project status, and assess the progress of a particular specialist working on a project. In turn, Confluence helps collect documents, knowledge in one place, which allows you to complete projects on time.
What Do Clients Say about Leewayhertz?Since the company has been offering its services in the market since 2007, it has accumulated a lot of reviews, as well as experience working with large brands. Most client reviews are positive, and the average rating on the review sites is 4.3 out of 5, which is 100% justified.
Reviewers unequivocally recommend Leewayhertz and note quality work at affordable prices, flexibility on approaches, contribution to successful development in the shortest possible time, employee responsiveness, and quality tech support at all stages of work.
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$5,000 +
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50 - 249
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$50 - $99 / hr
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US, San Francisco
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Leobit is a full-cycle web and mobile application development provider for technology companies and startups primarily located in the US, EU, and the UK. We have representative offices in Austin, TX (USA), Tallinn (Estonia), and the development center in Lviv (Ukraine) with 170+ talented software engineers, architects, quality assurance experts, and UI/UX designers.
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$10,000 +
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50 - 249
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$25 - $49 / hr
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Lihan Technologies is a software solutions and services company based in California, one of the most entrepreneurial places in the United States.
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$1,000 +
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10 - 49
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< $25 / hr
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Logic Square Technologies is a reputed technology partner and has diligently positioned itself as a leading developer of mobile and web applications. We believe that our expertise lies in technology and we focus our energies towards solving that part of the problem. That is why we see our relationship with clients as a symbiotic one, with clients bringing in business expertise and Logic Square bringing in technical expertise.
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$5,000 +
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50 - 249
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$50 - $99 / hr
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US, Kokomo
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Our global presence and diverse workforce has enabled us to provide innovative and customized IT solutions. Today we are the global leader in software consultancy and provide best-in-class services with reliability, safety and security to maintain global redundancy for seamless delivery.
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$5,000 +
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250 - 999
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$50 - $99 / hr
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US, Austin
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Mobisoft Infotech is a software product engineering company dedicated to providing value, quality, and lasting business expansion through digital innovation, change, and the adoption of technology. Our proficiency in digital technology encompasses Mobile, Cloud, DevOps, Web, IoT, AI, UI/UX, Testing, Robotic Process Automation, and various other digital transformation services, catering to companies across a wide range of industries. With more than ten years of experience in constructing digital solutions, offering consulting, and handling outsourcing, Mobisoft has assisted clients from over 30 countries in embracing digital transformation, capitalizing on market prospects, and attaining sustained outcomes.
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$10,000 +
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250 - 999
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$25 - $49 / hr
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Since then, we have been offering IT solutions to major healthcare enterprises around the US. Our clients include Fortune 500 Companies, SMB Enterprises, and Federal and State Govt. Agencies. We are also servicing clients in Europe and Australia.
We are a minority-owned organization with its headquarters in Edison, New Jersey and a development center in Bangalore, India. Our USA team consists of 50+ employees with an on-site technical team for IT staff augmentation which can relocate to any of the 50 states for six months or more, as per the client’s request. Along with this our development center in Bangalore consists of 200+ employees.
We build around our client’s vision and provide top-notch and cost-effective Custom Programming models Ashwani Jasti, fondly known as AJ, is our CEO and founder. He has more than a decade-long experience in the US healthcare sector.
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$25,000 +
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50 - 249
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$50 - $99 / hr
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A Trusted digital transformation partner of global enterprises with expertise in Native Web and Mobile Applications, AI & ML services hosted on AWS and Azure Cloud and product implementations. We are a team of about 400+ Agile smart employees with a development center in India and global offices in the US, UK, Australia, Ireland, Sweden, and Dubai. We have been in operations for about 14+ years now and we have built about 500+ digital solutions.
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$5,000 +
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250 - 999
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< $25 / hr
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On the development side, our Rails developers keep up with the latest trends in Ruby on Rails programming, such as development through testing, pair programming, and quality programs to ensure superior code quality for high volume scalability. When Rails 5 was launched, we quickly adopted it and updated our skill sets. Consequently, we are able to offer our customers the latest features that the Rails framework offers.Thanks to our diverse involvement in projects, we have equal experience in custom web application development and product development.
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$5,000 +
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50 - 249
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$25 - $49 / hr
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We are an award-winning creative, digital marketing & print agency based in Dallas, TX. We help businesses grow by building a creative culture and implementing systems that sustain innovation to drive remarkable results.
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$10,000 +
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2 - 9
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$100 - $149 / hr
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US, Southlake
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SF AppWorks is a progressive digital agency that helps companies, organizations, and entrepreneurs explore and develop innovative technologies that improve lives.
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$10,000 +
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50 - 249
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$50 - $99 / hr
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US, San Francisco
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Softermii is an expert in innovative software development. We help enterprises, startups, and businesses to build state-of-the-art products, gain digital disruption, boost their productivity and reach their goals.
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$1,000 +
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50 - 249
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$50 - $99 / hr
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Our key highlights are 365 x 24 x 7 SLA-driven support, multi-location implementation, end-to-end delivery with 360-degree support, universal presence in over 35+ countries, 250+ resources, 1000+ projects, 55000+ person-hours. As a modern IT organization, we strive hard to keep at pace with the most recent technologies, and our resources are well versed with the latest happenings in the IT world today. Our services and solutions are widely implemented, accepted, and appreciated in a wide range of industry domains like Sales & Distribution, Retail & FMCG, Shipping & Logistics, Education, Healthcare, Digital Media & Advertisement, Real Estate & Property Management, Energy & Utilities, Manufacturing.
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$10,000 +
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250 - 999
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$25 - $49 / hr
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IN, Ahmedabad
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We connect customers to trusted engineers from Central Europe and make sure your project is delivered on time and within budget. We are a Dallas-based company aimed to save your time by finding the right development partner. Our team of professionals made a new service that will help hire high-class software engineers. We've assembled the top-notch vendors by our side after having checked their expertise. Now it's high time to build a breakthrough product together.
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$10,000 +
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50 - 249
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$50 - $99 / hr
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US, Keller
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Webkul was founded in the year 2010 and for 11 years we are serving continuously in the eCommerce market. We have contributed our efforts in making extensions of various open-source eCommerce platforms. Also, we are among one of the few 100% Self-Bootstrapped organizations.
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$5,000 +
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250 - 999
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$50 - $99 / hr
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US, Wellington Hills
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XB Software is a custom software development company that offers outsourcing & outstaffing services for full-cycle development. We provide services for small- and medium-sized companies from the USA and Europe in web & app development, project management software development, front-end development, and app modernization. We ensure faster development and diverse customization that are granted by our expertise and the tools we created:
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Undisclosed
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50 - 249
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$25 - $49 / hr
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PL, Warsaw
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Creating transformational new digital products (mobile & web) at the intersection of market opportunity, customer experience, and emerging technology.
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$50,000 +
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1,000 - 9,999
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$25 - $49 / hr
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US, Washington
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We offer public/private cloud native, execution, and maintenance of quality first solutions. We build Good Things.
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$50,000 +
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10 - 49
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$150 - $199 / hr
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US, Atlanta
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Our trusted advisors help you with effective software outsourcing strategies through better planning, better partner selection and better engagement management. We can source and manage the right service for your needs. Trust Accelerance to fast-forward you to the right software outsourcing solutions with peace of mind.
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$100,000 +
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10 - 49
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$50 - $99 / hr
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US, Redwood City
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We are a development, data science and design studio that works closely with founders and executives to create custom software and machine learning solutions. Our developers build rich web and mobile products in collaboration with technical and non-technical teams. We work in agile teams & use coding best practices.
We are a development, data science, and design agency that works closely with founders and executives to build technology products that increase human agency. We provide full-service product design, development, and data science. We act as your CTO if you need one, or integrate with your team. Whatever you need tech wise, we can probably do it. We provide clean code that works, intelligent machine learning AI, user research and stunning UI, and many other things (oh my!).
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$100,000 +
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50 - 249
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$200 - $300 / hr
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US, Los Angeles
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We are a team of passionate professionals with in-depth experience in project management, as well as strategy creation, architecture, design development, Salesforce consulting services and CRM implementation. At Agency73, we have specialists of all the necessary types, which allows us to implement complex projects and ensure high quality, speed, and affordable costs for any business.
At Agency73, we offer the following services:
- Digital transformation. We help brands replace outdated ways of doing business with the latest digital alternatives. This includes the development and installation of modern software. In this way, we help businesses improve efficiency through the implementation of digital technology in all areas of the business;
- Salesforce development. To keep your sales team productive, we describe in detail all of your company's growth factors. We then move on to developing an in-depth plan, working closely with you to determine your goals, structure, and offer the best value for money. The whole process ends with the implementation of the finished project;
- Software development. You can rely on us to develop a software solution from scratch. We will design a solution of any complexity considering all your needs. As a result, you will be able to solve a number of complex tasks in terms of business processes (automation, optimization, etc.), improve the efficiency of your staff, enhance credibility, and more;
- Web applications. Our extensive experience, the ability to use new technologies, and individual approach are the aspects that help us create top-notch solutions for any business. As a result, you can reduce your expenses due to automation, increase the efficiency of your employees, and improve functionality (depending on your business goals and needs);
- Mobile applications. We can create an app that will perform multiple tasks, depending on your brand's requirements. With our solutions, you will be able to efficiently stimulate repeated purchases, increase your average check, improve customer loyalty, simplify communications with your clients, securely accept payments, analyze your target audience, automate your business processes, and much more;
- Design. We understand how important user experience is for any business, which is why our team includes expert designers who consider every detail, from convenient website forms to intuitive site navigation;
- Analytics. We analyze every step in the development process when working with your project. And you can track the entire development progress. Each project requires a detailed study of the industry, competitors, the target audience of the business. We always ensure that we deliver a solution of exceptional quality.
At Agency73, our mission is to provide clients with top-class solutions using professional and technological expertise. We understand and accept the uniqueness of each client. Thus, in our work, we set up only on an individual approach to provide the best future for every project.
You can check the portfolio on our official website and evaluate the potential of the agency. Plus, on the LinkedIn company page, you can get acquainted with our experts.
If you want to share your idea or find out what we can do for your business - send us an email today and we'll get back to you ASAP.
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$5,000 +
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2 - 9
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$50 - $99 / hr
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US, Encinitas
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Our portfolio includes two proprietary products that revolutionize the work of thousands of developers at companies like Mercedes and Samsung.
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$50,000 +
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250 - 999
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$100 - $149 / hr
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US, McLean
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Our AIMDek’s expertise offers services in Enterprise Portal (EP), Enterprise Content Management (ECM), Electronic Health Records (EHR), Business Process Management (BPM), Enterprise Application Integration (EAI), Business Intelligence (BI), Enterprise Mobility, Big Data, Data Analytics & Insights.
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$5,000 +
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50 - 249
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$25 - $49 / hr
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US, Austin
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Our goal is to create software that achieves real business outcomes for your company. Our teams are focused on the things that drive value and make a measurable impact.
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$25,000 +
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50 - 249
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$100 - $149 / hr
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US, Portland
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$250,000 +
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50 - 249
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$25 - $49 / hr
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IN, Jaipur
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We’ve been building apps, websites, and platforms for worldwide companies since 2011. We know the path you are on and we understand how to make it a success. New customers regularly say that working with us has been their first enjoyable project development experience.
AppNoit INC - App & Web Agency, Who provides digital services to worldwide companies, We offering our services to individuals, SMB's and large enterprises. We are an elite group of innovative web & app designers, developers, project managers, & marketers who companion with business executives to build their next profitable product. Whether you are creating a new product or reinventing a present one, we can help bring your vision to life.
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$10,000 +
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10 - 49
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< $25 / hr
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US, New York City
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Uber clone app is a ready-made taxi app solution built to help those who want to start their online taxi business. Seeing the growing popularity of on-demand taxi apps in the market, mobile app development companies started to create ready-made taxi app scripts that can be used to build an Uber- like app in less time. Gojek clone is a ready-made app script build for multi-service on-demand businesses. One can run more than 52 different on-demand services with one app. This gives you multiple opportunities to make money by offering different sets of on-demand services.
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$25,000 +
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50 - 249
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$50 - $99 / hr
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US, Louisville
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We love to bring you results that not only fulfill your requirements and fit right into your solution set but rather become an essential and natural part of the system and this is how we
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$25,000 +
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10 - 49
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$50 - $99 / hr
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US, New York City
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We take care of all the technology so you can focus on what you do best. We create software that is used by millions of users, in sectors spanning Education, Technology, Healthcare, Travel and beyond.
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$5,000 +
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250 - 999
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$50 - $99 / hr
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US, McKinney
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Our team of enthusiastic developers and designers passionate about turning big ideas into reality. Our unique mixture of skills guarantees that any project, no matter how complex, will be a success.
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$5,000 +
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50 - 249
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$25 - $49 / hr
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US, Boston
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Our team developed The Everyday Retail Blueprint to configure and customize the tools needed to improve the customer experience, streamline the supply chain, and report across the organization. This proven methodology helps retailers keep critical data, assets, and people connected and in sync everyday.
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$5,000 +
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50 - 249
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$200 - $300 / hr
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US, Seattle
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We are Digital Acceleration Experts. We are a company Powered by Technology and Driven by Talent.
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$50,000 +
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1,000 - 9,999
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$50 - $99 / hr
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US, San Francisco
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We are a highly diverse and world-renowned team known for delivering value through forward thinking and results-oriented leadership. Our expertise in Web development spans 20+ years and our mobile app development expertise extends back to the time when the first 500 apps launched in the App Store in July 2008. If we can’t get your job done, no one can.
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$5,000 +
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10 - 49
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$100 - $149 / hr
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US, Newport Beach
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When your company decides that it wants a particular software product to exist in the world, it’s important to think of the whole picture. For this kind of initiative, you’re going to want a partner - not an order taker.
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$5,000 +
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2 - 9
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$150 - $199 / hr
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US, Atlanta
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