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Best Custom Software development companies in United States in 2019.

ScienceSoft

Notable project

The company has more than 500 finished projects and a certified partner - Microsoft. The challenge was to develop the platform for millions of clients. The creation of 3 modules became the solution for this challenge. Modules help to analyze work for clients and employees.

"I`m absolutely satisfied with the quality of their services, their development skills and responsibility as well as the way they manage communication with us and our clients. I fully recommend ScienceSoft as a reliable IT partner!"

With more than 25 years of experience, ScienceSoft provides a huge range of services for IT consulting and custom software development. Company developed more than 1700 projects by more than 500 IT professionals all around the world.

ScienceSoft offers:
- Custom Software Development;
- Technology Consulting Services;
- Platform-based Customization.

According to research 76% of the company's income comes from 1+ year-long customers, so the company is aimed at long-term partnership with clients. In 2018, ScienceSoft has been accredited by BBB and rated A+, also got in the list of 10 Fastest Growing Data Analytics Companies.

Clients

Walmart, Nestle, eBay, NASA JPL, T-Mobile

Awards

Microsoft Gold Data Analytics and Data Platform competencies

  • 10% Custom Software development company
Employees 501-1000

Jan Banda

They provide a high calibre of skilled resources

#2

Fingent

29 reviews
Fingent

Notable project

The challenge for the team while they working on Up-Skill were to create a training platform that would help to discover potential and maximize productivity of workforce. Today Up-Skill uses Human Resource departments for better selection of potential employees.

"I think that Fingent Corporation is a good partner for our projects and I've enjoyed working with them. The process has been a lot smoother than that I would've thought." - President, Financial Services

Since the company was founded 2003, Fingent Corp specializes on helping companies and businesses of all sizes fast and easy solving arisen challenges and satisfies their requests. Now the company has more than 650 projects from more than 20 industries at its portfolio.

Services:
- Product Engineering;
- Data Analytic and Information Management;
- Strategy and Planning.

Fingent Corp uses over 20 leading technologies for the projects solutions. The company client base includes customers from 4 continents and more than 14 countries.

Clients

NEC, Johnson&Johnson, CBN, Sony

Awards

Clutch, GoodFirms, BusinessofApps, ITFirms,TrustedFirms

  • 50% Custom Software development company
Employees 201-500

Zain Naboulsi

Fingent`s team ensures long-term success as well as quality development and delivery.

Itransition

Notable project

The customer hired Instation to achieve his goal which was to lower the maintenance costs and also finding solutions for some technical problems. The solution was a development a multifunctional app that aimed to automate process of ordering, management and monitoring.

“They addressed our needs quickly, even during their region’s off hours.”

Founded in 1998, Itransition is the company which provides web solutions for large and medium-sized companies. The company developed more than 1530 projects in which 250 used-to-be startups.

The company provides:
- IT Strategy and Consulting
- Product Engineering
- System Integration

Itransition serves more than 810 clients and 12 industries in over 30 countries. Besides front-end the company technology expertise includes C++, .NET, RoR, Python, PHP and Java.

The Instation also ensures their customers with virtual reality, augmented reality and mixed reality.

Clients

Adidas, Toyota, Xerox, eBay, Philips, PepsiCo, PayPal

  • 25% Custom Software development company
Employees 501-1000
Ezetech

Notable project

Ezetech did a great job with Swag and now it`s one of the most successful online services, processing millions of orders at the moment. The team created a multi-functional market and, at the same time, an easy-to-use web application that is simple and convenient for customers.

"Ezetech`s work has helped contribute to over $800,000 of sales in the first year of launching the site/ their passionate developers have demonstrated their excitement for growth and success as though they were part of the team. They worked fast and delivered the product very economically" - Jeremy Parker, SWAG.COM

NY City based company Ezetech was established in 2015. From the beginning the team was focused on long-term partnership with startups.

The company positions itself as:
- MVP development & technology partner;
- Custom software development.

Ezetech working in three main industries: ecommerce, fintech and media also offering best business-oriented team, best practices and close interaction with customers.

Among their clients there are companies and businesses with over 40 million dollars profit, which was earned also thanks to Ezetech.

Clients

Swag, Koyfin, Taurus, Spoiled.nyc

  • 33% Custom Software development company
Employees 11-50
Cyber Infrastructure Inc.

Notable project

eSignly was created by Cyber Infrastructure Inc. as an app that secures electronic signatures. The program is easy to use and after just three simple steps users can have a full access to all the documentation, stored in any gadget.

"This team works hard, provides excellent service and exceptional products. Weve been working with them over a year and are pleased with the results." - Jessica Seastead

With over 16 years of experience Cyber Infrastructure Inc. has more than 1000 professional team members and 5 offices all around the world.

The company also has a huge experience in web development (12+ years), more than 7 years of experience in mobile development and 7 years marketing experience.

CIS offers:
- Enterprise Mobility and Big Data;
- Microsoft and SAP Solution;
- BI & Analytics and RPA.

Cyber Infrastructure Inc. serves and works with all the industrial giants of India and maintain strategic alliances with Microsoft, Apple, Google, Joomla & Drupal. Moreover, The CIS is one of the best blockchain development company.

Clients

Microsoft, Apple, Google, Joomla & Drupal

Awards

Microsoft Gold certified partnerIn May 2009, CIS achieved the coveted status of Microsoft Gold Partner being so 7th in central India and 4th in Indore city.

  • 40% Custom Software development company
Employees 501-1000
#6

SteelKiwi

26 reviews

We create astonishing web and mobile applications for small and medium businesses and startups. We work with the modern day frameworks which are focused on building quick-to-market, scalable and fault-tolerant applications.

We stick to agile methodologies and our customers are always involved in the process.

Clients

Uber, Qravity, Answers.hom, NightApp, Meddy.co

  • 20% Custom Software development company
Employees 51-100

Christoph Matzka

I was sure that my project in good hands

Attract Group is a trusted IT service partner that ensures fast launch for start-ups and efficient growth for mature enterprises. 


  1. Our Services:

  2. UI/UX Design    
  3. Web Development    
  4. Mobile Development    
  5. DevOps  
  6. Online Marketing   
  7. Business Analysis & IT Consulting 
  8. Project Management 
  9. Quality

  • 20% Custom Software development company
Employees 11-50

Boris Krastev

Building of an MVP by Attract Group

JetRuby Agency is a Full Cycle Web and Mobile outsourcing software development company with 8+ years of expertise in development and maintenance of SaaS, CRM, ERP, E-Commerce, Social Media applications, RealEstate solutions of different complexity based on top-notch technology stack.


The story of our success has already been spread over the half of the Globe.


  • 5% Custom Software development company
Employees 51-100

Gustavo

JetRuby Agency goes out of their way to work and engage with the customer.

Dev Technosys started back in 2010, is a perfect fusion of talent, endeavoring over 950+ successful Custom web development and Mobile app development projects. Since our outset we have dwelled on the notion of “Bringing IT to Life” and cultivated a successful history of digital solutions for SMB’s and enterprise level companies with utility-based software;

Clients

Johnson&Johnson, Nike, Hertz, Pfizer, Whirpool

Awards

Ranked among world’s top 10 Mobile app development company-Clutch

  • 15% Custom Software development company
Employees 51-100

Ibrahim Khoury

We chose to work with Dev Technosys after interviewing/vetting ten web development companies from around the world. NMG won our business because of th...

#10

HQSoftware

9 reviews

HQSoftware is a trusted international VR, AR, and IoT software development company. They enable their clients to evolve by providing software R&D services expertise across multiple verticals, including manufacturing, healthcare, insurance, education, and other.

Development frameworks / SDKs that we use for AR and VR development encompass Unity, Vuforia SDK,

Clients

BBC Worldwide, Freightcom, World Health Organization, Canon, SEGA.

Awards

Microsoft Certified IT Professional, Professional SCRUM Master

  • 10% Custom Software development company
Employees 51-100

Sarah

Their responsive team was dedicated to understanding our business needs and providing detailed information

#11

Computools

7 reviews

Computools LLC is a software development service provider in Marketing, AdTech, E-Commerce, FinTech, Healthcare industries since 2013.

Our HQ and R&D offices are located in Kiev, Zaporizhzhya with local presence in London, Tel Aviv, Frankfurt, Philadelphia.

We help in:

- IT Product Development; 

- Digital Transformation; 

- Extending Dedicated Teams.

  • 25% Custom Software development company
Employees 101-200

Bhuntbh2

A great work!

#12

Celadon

7 reviews

We create mobile and web apps for startups, businesses and all those who think differently.

What helps us to provide high quality, speed and cost efficiency of our work that meets modern market demands?

On the technical side it's strict focus on carefully selected modern technologies and frameworks.

  • 25% Custom Software development company
Employees 11-50

Hayley Tosney

Celadon is amazingly flexible company. The cooperation with them is so tight, it's like an own software development department in our company.

#13

Techliance

3 reviews

Techliance offers IT Services, Web Development and Mobile App Development including Android App Making and IOS Applications services.

Techliance is leading IT Services Company providing Custom Mobile App Development Services including Android App Development and IOS App Development for iPhone / iPad smart devices.

  • 20% Custom Software development company
Employees 11-50

Justin

They hit every deadline and never goes over budget.

#14

Valysto

2 reviews

We help our client to transform business and get on top using digital technologies.

We design products, develop mobile and web applications, can help with software audit.

  • 10% Custom Software development company
Employees 11-50

Igor Korostelev

Reliable and professional team

Founded in 1999, Iflexion specializes in creating business, eCommerce, web and mobile solutions for enterprises. With 20 years of experience in custom software development, Iflexion professionals build new sophisticated SoA systems as well as revamp existing legacy solutions.

BI and AI implementation, cross-platform development, cloud and streaming integration,

Clients

Adidas, Toyota, PayPal, Philips, Ebay.

  • 25% Custom Software development company
Employees 501-1000

Julia Perez

Excellent management systems and eCommerce software development partner

  • 30% Custom Software development company
Employees 11-50

WilliePittman

The team is highly qualified and talented.

#17

DevCom

1review

19 years of software development experiences that solve real-world problems for businesses and their customers.

Awards

'Top B2B Companies in Ukraine' by Clutch

  • 33% Custom Software development company
Employees 101-200

Hanna L

The quality of work at all levels has been excellent.

With offices in San Francisco and Dev Centers across the main cities in LATAM and the US, we are the fastest growing Technology Solutions company in Latin America. We have the largest applicants pool in the industry with over 145.000 Software Engineers applying to work with us each year, from which we hire only the Top 1% IT Talent through a rigorous staffing

Clients

Google, Panasonic, Sirius XM, Demand Media, Netgear, Univision, IBM

  • 33% Custom Software development company
Employees 501-1000

Nino.mariabelen

Great company

AppVertials is an experienced and creative mobile app development company. We have proven our expertise in iPhone application development, Android application development, iPad application development and Web Portal development. With over 400+ innovative and successful mobile applications developed that are the most polished, smart sleek, speedy & efficient

Clients

Cloud based Recruitment Softwaer

  • 10% Custom Software development company
Employees 101-200

SOFTEQ HELPS BUSINESSES ENGINEER, TRANSFORM & SCALE IT SYSTEMS

Founded in 1997 in Houston, TX, Softeq Development Corporation went on to establish business development, R&D and software development facilities in Germany and Belarus to access new talent pools and ensure cost efficiency for our customers.

Clients

Coca-Cola, Intel, Digit ,Lamden ,Koinim, Nvidia, HP

  • 33% Custom Software development company
Employees 201-500

Codiant is “a revolution, a reliable partner, responsible service provider, loyal friend, and your inspiration” that has donned a big feather for world-class Mobile App and Web App Development, UI/UX Development, Enterprise Mobility Solutions, and Application Maintenance Services across various platforms.

  • 5% Custom Software development company
Employees 101-200

PixelPlex is an award-winning custom software development company with a proven track record, a mix of broad technology expertise, innovative business culture and over 100 talented developers.

Founded in 2007, PixelPlex has delivered over 300 projects in Blockchain, AR/VR, Artificial Intelligence, Internet of Things, Mobile, Game and Custom Software Development.

Clients

BMW, Microsoft, Rise, KazakhTelecom, Qtum

  • 20% Custom Software development company
Employees 101-200

Terasol's mission is to create apps that would help people learn and grow with tech. Every member of Terasol shares the same dream of working towards building apps that would not only create history but also give people the opportunity of experiencing tech they did not know could become essential part of their lives.

  • 10% Custom Software development company
Employees 11-50

Resolute Software offers full-cycle software engineering and consulting services by focusing on agile, continuous and predictable delivery of solutions that help you innovate, transform and expand your digital footprint.

Always ready to embrace a challenge, our distinctive approach to software development, passion for building robust, scalable, future-ready solutions,

  • 40% Custom Software development company
Employees 11-50

QArea is a software development service provider with 18 years of experience in developing custom software solutions — from building a website and developing a Minimum Viable Product to testing software applications and building complex enterprise software suites. We have already helped hundreds of clients increase their performance and improve key workflows

Clients

Dashlane, the Huffington post, Skype, RebelMouse, Kroodle.

  • 15% Custom Software development company
Employees 201-500

Xelium offers Mobile App Development Services to different clients globally. We have a team of skilled professionals with years of experience in iOS, Android and many more to help and support using our consulting tactic. It is the excellence blended with the sheer dedication that sets us apart from the rest in the industry.

  • 10% Custom Software development company
Employees 1-10

BlueKite Apps is a leading app development company in San Diego. We design and develop best-in-class mobile and web applications for clients from growing startups to enterprises. Our services include iOS app development, Android app development, custom software development, and cloud computing.

Clients

Sony, RedBull

  • 40% Custom Software development company
Employees 1-10

Peerbits is a global IT solution company delivering web development, mobile application development and IT consulting services of any complexity to clients worldwide. Peerbits has a strong team of 100+ highly skilled IT experts. Peerbits carries trust of more than 300+ clients spread across diverse business verticals.

Clients

Medtronic, AstraZeneca, TracMojo, Jara, King Saud University,

  • 20% Custom Software development company
Employees 101-200

Chetu is a US-based software development company that provides businesses worldwide with custom technology solutions. As an application development company with over 1,500 skilled software developers, Chetu combines technological expertise, specific domain experience, and passion for excellence to deliver enterprise-grade solutions.

  • 12% Custom Software development company
Employees 1000+

ARKA Softwares is a well-organized custom software development company, offering the best mobile and web app development services across the globe. Our technology experts and consultants are focused on delivering standard IT solutions with top rated quality. We are working with an enthusiasm for any kind of business startups or large enterprise.

Clients

Adani Group, ILFS, Airtel, Ommcollective, Benvenuto,  Innerhour,  AllN1,  Mapha

  • 25% Custom Software development company
Employees 101-200

Treehouse Technology Group’s (TTG)’s world class Blockchain services team is at the forefront of this revolutionary technology poised to transform the world of business. TTG leverages it’s years of enterprise-wide data and application development that supports thousands of users from start-up’s to Fortune 500 companies by developing highly secure and

Clients

Technology Business Research Inc., Envision Healthcare, Horizon Communications, iHomeRegistry, SSL

  • 50% Custom Software development company
Employees 11-50

We are a web app and custom software development company based in Denver, Colorado. We build high quality web and mobile web apps that run fast and look great on every device.

Modernize your enterprise with web apps that run fast, scale to thousands of users, and look sharp on phones, tablets, and computers.

Clients

AT&T

Awards

Multiple awards for Denver and Colorado Springs top software developer

  • 40% Custom Software development company
Employees 1-10

Founded in 2004, VironIT is a professional and established international software development company.  The company offers services to any firm who looks for the software development: startups, game development companies, SMB and even individuals. It operates in such fields as Banking, Education, eHealth, Gambling, Game Dev, Legal, Logistics, Media & Entertainment,

Clients

HTC, Windows

  • 12% Custom Software development company
Employees 101-200

Marlabs helps companies adopt digital transformation using Digital360 - a comprehensive digital framework comprising of Digital Product Engineering, Digital Automation, Enterprise Analytics, Cloud, Digital Security and Digital User Experience; delivering a next-generation Digital Customer Experience.

Clients

Companies from Banking, Education, Retail, Healthcare industries.

  • 10% Custom Software development company
Employees 1000+

VirtSpaces Pvt. Ltd. is a Bangalore based startup that is looking at deploying patented Virtual Reality immersive experiences to consumer of Real Estate: Residential, Commercial Office & Commercial Retail. We have moved away from 360 degree stereoscopic images to provide a full experience and provide walkthroughs of the property.

  • 40% Custom Software development company
Employees 1-10

Pharos Production Inc. is a software development company established in July 2013 in Las Vegas, NV and with 2 development teams in Kyiv, Ukraine and Vilnius, Lithuania. Our specializations are Blockchain and High-Load FinTech systems.

We are proud of developing edge technological custom solutions and components that meet our client’s needs.

  • 10% Custom Software development company
Employees 11-50

A San Francisco and London based full services Blockchain Development Company, PrimaFelicitas offers easy, secure and cost effective blockchain solution across different industries. With a team of skilled and experienced professionals, PrimaFelicitas provides comprehensive assistance to customers, helping them develop their idea and leading them through the path

  • 20% Custom Software development company
Employees 11-50

We are a young team of professionals who have insight into creating magic design of web and mobile platforms. We are also experienced in development of Web/iOS/Android and Quality Assurance as a pleasant bonus. Available for hire 📥 [email removed]

  • 5% Custom Software development company
Employees 1-10

ABOUT ENCATA SOFT

EnCata Soft has had a long and hard way to create a truly strong team...


The team that absorbed all the up-to-date methodologies and outstanding experience from hardware to improve software. The team that provides flexibility and smooth technology change to any project connected with machine learning, big data and blockchain.


  • 20% Custom Software development company
Employees 11-50

Ionixx Technologies is a full-spectrum development firm that specializes in mobile, web and cloud technologies. Our team of over 80 designers and developers have expertise in iOS, Android, Web, Server-side technologies, IoT, and Blockchain. We work with startups and fast-growth companies as a technology execution partner.

  • 20% Custom Software development company
Employees 1-10

RWaltz Software is one of the Top Blockchain Application Development Company in the USA, India which offers complete blockchain technology solutions including Ethereum, ICO Development, Smart Contracts, Decentralized Applications (DApps), Hyperledger, Private Blockchain Development Services, Cryptocurrency Wallet, Bitcoin Apps, etc.

Clients

NBC Universal

  • 5% Custom Software development company
Employees 11-50

Seasia Infotech, a CMMI Level 5 company is known for its prominent software development services for diverse business needs. Established in 2000, the company holds a great repute in delivering exceptional services related to software development and support.

Our Services: Web Development, Website Designing, Mobile App Development, Blockchain Application Development,

Clients

Adani Group, HDFC Bank, Harley-Davidson, Renault, Innopharma.

Awards

CMMI5 Certified Company

  • 20% Custom Software development company
Employees 501-1000

The Secret Lab is a product innovation lab. Dream it and we can build it. 

Augmented Reality / Mixed Reality / Extended Reality (Microsoft HoloLens, ARKit, Vuforia, Unity 3D)

Visual Effects (VFX), 3D Animation, Drones Videography & Photography (FAA Remote Pilot Certified for commercial drones, sUAV), 360 Videos, Robotics, Connected Devices & IoT.

Clients

Comcast, Disney, Microsoft

Awards

https://drive.google.com/file/d/1J12BgI23JzTTEal7zNxPwXfZVMTe5qR1/view

  • 10% Custom Software development company
Employees 1-10

Zymr Inc. is a full-stack cloud software development services company headquartered in Silicon Valley. Combining agile development practices and cutting-edge open source technologies, we deliver fit-for-purpose software that scales with our customers’ business needs. Founded by industry veterans, with decades of cumulative technology experience, we are proficient

  • 20% Custom Software development company
Employees 101-200

The Nine Hertz is the fast growing Mobile application and web development firm that is guided in delivering the products and views into mobile space with prime quality. We assist clients in identifying the risks and opportunities that address both short-term challenges as well as long-term value creation.

Clients

Pepsico, Samsung Parts, Calsio, Reliance, Jaipur Metro

  • 10% Custom Software development company
Employees 101-200

JumpGrowth provides complete consulting and mobile apps development services to Startups and highly Innovative teams across businesses. We research the user requirements and help create apps with unique user experiences blended with sophistication of under the hood latest technologies.

Specialties: Startup Apps, Mobile Apps, Cloud & DevOps, Mobility,

  • 5% Custom Software development company
Employees 1-10


RD Global Inc is software development company. Our fantastic team of talented developers and designers can deliver for you at a fraction of the cost. And we manage it all through a great governance model that helps keep the costs down and deliver quality results on time.


  • 10% Custom Software development company
Employees 11-50

Mainly occupied in web development, iTechArt doesn’t neglect other IT spheres like mobile development, Big Data, QA & Testing, and DevOps.Their web products are marked with robust backends and catching UIs. The company can build powerful complex websites and internal portals, single page applications or feature-rich SaaS solutions.

Clients

Vestwell, CareDox, Etouches, BuildingLink.com, Learning.com

  • 12% Custom Software development company
Employees 501-1000

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