Software development refers to a set of computer science activities dedicated to the process of creating, designing, deploying and supporting software. LIST OF THE BEST SOFTWARE DEVELOPMENT FIRMS
Software itself is the set of instructions or programs that tell a computer what to do. It is independent of hardware and makes computers programmable. There are three basic types:
System software to provide core functions such as operating systems, disk management, utilities, hardware management and other operational necessities.
Programming software to give programmers tools such as text editors, compilers, linkers, debuggers and other tools to create code.
Application software (applications or apps) to help users perform tasks. Office productivity suites, data management software, media players and security programs are examples. Applications also refers to web and mobile applications like those used to shop on Amazon.com, socialize with Facebook or post pictures to Instagram.1
A possible fourth type is embedded software. Embedded systems software is used to control machines and devices not typically considered computers — telecommunications networks, cars, industrial robots and more. These devices, and their software, can be connected as part of the Internet of Things (IoT).2
Software development is primarily conducted by programmers, software engineers and software developers. These roles interact and overlap, and the dynamics between them vary greatly across development departments and communities.
Programmers, or coders, write source code to program computers for specific tasks like merging databases, processing online orders, routing communications, conducting searches or displaying text and graphics. Programmers typically interpret instructions from software developers and engineers and use programming languages like C++ or Java to carry them out.
Software engineers apply engineering principles to build software and systems to solve problems. They use modeling language and other tools to devise solutions that can often be applied to problems in a general way, as opposed to merely solving for a specific instance or client. Software engineering solutions adhere to the scientific method and must work in the real world, as with bridges or elevators. Their responsibility has grown as products have become increasingly more intelligent with the addition of microprocessors, sensors and software. Not only are more products relying on software for market differentiation, but their software development must be coordinated with the product’s mechanical and electrical development work.
Software developers have a less formal role than engineers and can be closely involved with specific project areas — including writing code. At the same time, they drive the overall software development lifecycle — including working across functional teams to transform requirements into features, managing development teams and processes, and conducting software testing and maintenance.3
The work of software development isn’t confined to coders or development teams. Professionals such as scientists, device fabricators and hardware makers also create software code even though they are not primarily software developers. Nor is it confined to traditional information technology industries such as software or semiconductor businesses. In fact, according to the Brookings Institute (link resides outside of ibm.com), those businesses “account for less than half of the companies performing software development.”
An important distinction is custom software development as opposed to commercial software development. Custom software development is the process of designing, creating, deploying and maintaining software for a specific set of users, functions or organizations. In contrast, commercial off-the-shelf software (COTS) is designed for a broad set of requirements, allowing it to be packaged and commercially marketed and distributed.
HERE IS A LIST OF THE BEST SOFTWARE DEVELOPMENT FIRMS
N-iX

N-iX is a global software solutions and engineering services company that helps the world’s leading organizations turn challenges into lasting business value, operational efficiency, and revenue growth using modern technology. With over 2,000 professionals in 25 countries across Europe and the Americas, N-iX offers expert solutions in cloud, data analytics, embedded software, IoT, AI, machine learning, and other tech domains. Being in business for over two decades, we have worked with dozens of industry-leading enterprises and Fortune 500 companies, creating value across a wide variety of sectors, including finance, manufacturing, supply chain, retail, and more.
MERIXSTUDIO

Full-stack development company with 230 experts on board who build complex digital products for clients worldwide looking to outsource software development to professionals. Merixstudio’s key expertise is the delivery of high-quality and performant web applications, as well as mobile apps accessible on Android and iOS devices. Based on the needs of clients, they can support in end-to-end product development or seamlessly extend in-house teams of engineers.
STX Next

Based in Poland, STX Next is a global software development company. The agency was founded in 2005 and carries a team of over 200 full-stack Python developers alone. In total, the company has over 400 professionals that specialize in web development, software development, and application testing.
Cheesecake Labs

Cheesecake Labs is a software design and development company. With 10 years of experience and a team of 100+ employees in Brazil and the US, Cheesecake Labs has delivered 300+ mobile/web applications and digital products. People, methodology, and experience are the 3 pillars that leverage their software design and development capabilities to deliver digital products through a nearshore collaboration model. The company offers full-service development for iOS, Android, and Web platforms, including UI/UX design, backend engineering, project management, testing, launching, and maintenance.
TekRevol

TekRevol is an app development startup of 18 employees. Founded in 2014, their headquarters is in Newark, Calif. They offer various services: mobile app development, web development, e-commerce development, blockchain, and more. They primarily work with enterprise and midmarket clients in the e-commerce and business services industries.
Vention

Headquartered in New York, Vention (formerly iTechArt Group) is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention (formerly iTechArt Group) has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, Vention’s (formerly iTechArt Group) talent pool includes 3500+ engineers with experience in all of the latest technologies.
10Clouds

Headquartered in Warsaw, Poland and with an office in Atlanta, GA, 10Clouds has built software for businesses worldwide since 2009. The team of 120+ focuses on web development, software development, and DevOps services for scaleups and enterprise clients.
Yalantis

Web and mobile app development company Yalantis is based in Ukraine. Founded in 2008, the team of nearly 200 employees is fluent in web, Android, and iOS development – Swift, Kotlin, JavaScript, Ruby, Node.Js, Goland, and more.
Simform

Simform is a custom software development company founded in 2010. They have helped organizations ranging from startups, Fortune 500 companies, and WHO-backed NGOs. The team of 250+ delivers digital solutions for their clients and offer artificial intelligence services, API integration, dedicated software development team, and software testing services.