Top 10 Python Software Development Companies of 2026 [Expert-Vetted]

If you're looking for a Python development partner in 2026, you're already on the right path. Python controls 26.14% of the TIOBE Index and holds the top spot among programming languages. It is well ahead of C at 10.64 percent and Java at 9.6 percent. Nearly half of all developers use Python, and more than 70 percent of machine learning engineers rely on it as their main language. Python is not only popular. It is the foundation of modern software development.

The challenge is finding the right partner. Many companies claim to be Python experts, but only a few offer real quality and reliable communication. Even fewer have the technical skills that your project needs. 

This guide solves that problem. It highlights the top Python development companies to consider in 2026 and helps you understand what each one does best, so you can choose a partner with confidence.

Whether you are creating an AI product, upgrading legacy systems, or launching a scalable web platform, the team you choose will shape your entire outcome. Here are the companies that stand out:

• Azumo
• ScienceSoft
• Entrans
• STX Next
• Imaginary Cloud
• Orient Software
• Biz4Group
• Iflexion
• Simform
• ELEKS

Top 10 Python Software Development Companies of 2026

1. Azumo

Azumo is one of the top Python development companies in the US. Their strength comes from deep specialization in AI and machine learning, paired with a strong track record of solving complex Python challenges. Clutch named them the 2025 Top Python and Django Company in San Francisco, and they also earned a place in the Clutch Top 1000 in 2022. Their work is known for precision, speed, and the ability to deliver on high-stakes technical requirements.

Their client list speaks for itself. Facebook, Omnicom, United Health, and Discovery Channel trust Azumo with major projects that demand reliability and expertise. Azumo is also recognized for championing diversity within the tech industry.

Core Python Development Services:

• Custom Python Development
• Python API Development
• Python Consulting
• Python App Modernization
• Migration to Python Framework
• Python Maintenance and Support

Technology Stack:

Python, C#, Java, JavaScript, PHP, Django, Flask, React, Next.js, ChatGPT, TensorFlow, PyTorch, OpenAI, Anthropic, AWS, Azure, Google Cloud, Unity, Unreal, React Native

Python Development Case Study:

Azumo partnered with an AI-powered talent intelligence company to see if Large Language Models (LLMs) could sort psychometric questions into 50 categories. They built a Proof of Concept that included labeling data, setting up infrastructure with Label Studio and PostgreSQL, and fine-tuning models in Python. Using LoRA/QLoRA methods, they created a dataset of 550 question-answer pairs and trained models that could classify questions accurately. The project proved the idea works, gave useful insights, and delivered a framework that can be reused and scaled in the future.

Why Choose Azumo:

Azumo is a strong fit for companies that need a Python team with deep AI and machine learning knowledge. With a proven track record with Fortune 500 clients, Azumo handles complex Python work with confidence. They build AI chatbots, data platforms, automation tools, and full-stack applications with the same attention to detail. Choose Azumo when you want advanced AI capabilities, clear communication, and a development team that works as a true extension of your own.

2. ScienceSoft

ScienceSoft has been in the top Python development companies since 1989. They have over 35 years of experience and have completed more than 50 Python projects. They serve clients in over 70 countries, including IBM, eBay, and Ford Motor Company. They have strong expertise in healthcare and financial services. They were featured in the Financial Times’ Americas Fastest Growing Companies list from 2022 to 2025. Their team of 25+ Python developers has 3 to 15 years of experience each.

Core Python Development Services:

• ​​Enterprise Python software development
• Python-based automation tools
• Web application development with Django and Flask
• Cloud migration for Python systems
• API and microservices architecture
• End-to-end QA and support

Technology Stack:

Python, Java, .NET, C++, JavaScript, Django, Flask, React, Angular, Node.js, TensorFlow, PyTorch, AWS, Azure, Google Cloud, SQL Server, Oracle, MySQL, Elasticsearch, SharePoint

Python Development Case Study:

ScienceSoft worked with Miami Dade College to set up a Hadoop system on Linux, which included Python and Zeppelin. They helped the college avoid expensive cloud storage. The team followed the college’s instructions closely, provided clear documentation, and stayed in touch. The project finished on time, stayed within budget, and met all technical goals. The client highlighted ScienceSoft’s expertise, reliability, and responsiveness, and said they would gladly recommend them.

Why Choose ScienceSoft:

If you're looking for a company with decades of experience and a proven track record in complex industries like healthcare and finance, ScienceSoft is a solid choice. They are not the cheapest option, but their professionalism, reliability, and attention to detail make them worth it.

3. Entrans

Entrans is a full Python development partner with experience in Django, Flask, FastAPI, and ML/AI tools. They focus on clear pricing and long-term support. They build scalable systems with clean code that can be maintained and updated over time. Their work spans many industries, giving them insight into common problems and solutions. This experience helps them deliver faster and make better technical decisions for web apps, data projects, and business process automation.

Core Python Development Services:

• Python Web Application Development
• FastAPI and Django application builds
• AI and data-driven solutions
• API and microservices creation
• Cloud deployment 
• Automation using Python scripts

Technology Stack:

Python, Django, FastAPI, React, Next.js, Node.js, TensorFlow, AWS, Google Cloud, PostgreSQL, Redis, Docker

Custom Software Development Case Study:

Entrans built a scalable Identity and Access Management platform for a global cybersecurity company. The system handles complex user and access workflows. It is designed for high security, reliability, and growth. The team used cloud-based architecture, automated provisioning, and strict access controls. 

Why Choose Entrans:

Choose Entrans if you want a clear and reliable partner. They build systems that last and use clean code. Their work is good for companies that plan to grow and update their software over time. Projects start at $15,000, making them a fit for mid-sized needs. They have experience with Python frameworks and can add ML or AI to real business applications.

4. STX Next

STX Next is Europe’s largest Python software house, with nearly 20 years of experience and over 1,000 delivered projects. They were recognized as the #1 Python and Django developer by Clutch in 2019 and featured in the Clutch 1000. Their expertise in Python, Django, Flask, and FastAPI makes them a go-to partner for fintech and data science projects.

Core Python Development Services:

• End-to-end Python product development
• Django and FastAPI backend systems
• API design and scalable microservices
• Python-based automation
• Cloud deployment and DevOps support
• Code audits and refactoring

Technology Stack:

Python, Django, Flask, FastAPI, React, Angular, Node.js, PyTorch, TensorFlow, AWS, Azure, Docker, Kubernetes, PostgreSQL, Redis, Elasticsearch

Python Development Case Study:

STX Next supplied Python and Angular engineers to a fintech company for their banking platform. The team worked closely with the client, followed internal processes, and used Slack for communication. They delivered quality work on time and integrated smoothly with the client’s engineers. The client praised their transparency, speed, and technical skills.

Why Choose STX Next:

If you need a team with deep Python expertise and a strong fintech focus, STX Next is an excellent choice. Their nearly 20 years of experience and 99 verified Clutch reviews make them one of the most reliable Python development partners available.

5. Leanware

Leanware helps companies build Python-based backend systems and web applications. They use Django, Flask, and FastAPI to create scalable, maintainable software and work with APIs, data pipelines, and cloud infrastructure. Their team focuses on writing clean code that can grow and adapt as business needs change.

Core Python Development Services:

• Python-focused software development
• ML model creation and deployment
• Data processing pipelines
• Django and Flask web systems
• API development
• Cloud deployment for Python apps

Technology Stack:

Python, Django, Flask, React, Node.js, TypeScript, TensorFlow, AWS, Google Cloud, PostgreSQL, MongoDB, Docker, Kubernetes

Python Development Case Study:

As one of the top Python development companies, Leanware automated a trading platform for an algorithmic trading startup. They handled the backend in Python and set up AWS pipelines with GitHub. Leanware also used Selenium for automated data tasks and built the frontend. The team worked closely with the client, communicated via Slack and calls, and quickly learned the platform’s trading logic. The client praised their technical skill, flexibility, and smooth integration into the workflow.

Why Choose Leanware:

Leanware is a good choice for companies that need Python systems that last and can grow over time. They work well for fintech, trading, and other data-heavy applications where clean code, cloud integration, and flexibility matter. Their rates start at $29/hour and adjust based on project complexity and expertise required.

6. Orient Software

Orient Software has over 20 years of Python experience. They have delivered more than 200 high-quality solutions in healthcare, finance, and e-commerce. Their clients stay loyal, with a 96% retention rate. They work with Django, Flask, and AI/ML frameworks like TensorFlow, Keras, and PyTorch.

Core Python Development Services:

• Custom Python software development
• Backend and API creation
• Web application development
• Automation and scripting
• Cloud-ready Python solutions
• Integration with enterprise systems

Technology Stack:

Python, Java, .NET, Node.js, PHP, Django, Flask, Angular, React, AWS, Azure, Google Cloud, MySQL, PostgreSQL, MongoDB, Docker, Kubernetes

Custom Software Development Case Study:

Orient built a web app for Crosswim, a swimming fitness program, which included e-commerce, subscription management, and a custom LMS. The platform has multi-level user access, direct messaging with instructors, and a booking system for online and in-person sessions. It is scalable, boosts user engagement, and simplifies operations. The client praised the team for being proactive, responsive, and delivering a smooth, high-quality development process.

Why Choose Orient Software:

Orient Software is a strong choice if you need skilled Python developers who understand complex business needs. They have deep experience in healthcare and finance, where data security and compliance are important. They can scale with your project and provide ongoing support. Their offices in Asia offer flexibility for international clients.

7. Biz4Group

Biz4Group specializes in AI-powered Python solutions. They focus on GPT-integrated platforms, chatbot automation, and IoT dashboards that solve real business problems. They do not just build standard web applications. They design solutions that improve operations and speed up results. 

Their team studies your business model, finds bottlenecks, and creates Python solutions that meet your specific needs. Biz4Group works with enterprises, startups, and SMEs, helping them connect advanced AI with practical business applications.

Core Python Development Services:

• AI and ML-focused Python development
• Data engineering and IoT integrations
• Django and Flask web applications
• Cloud deployment for Python apps
• API development and platform integration
• Python-based dashboards and analytics

Technology Stack:

Python, JavaScript, Node.js, React, Angular, Django, Flask, TensorFlow, AWS, Azure, Google Cloud, MongoDB, PostgreSQL, IoT frameworks, Big Data tools

Custom Software Development Case Study:

Biz4Group built web and mobile apps for a business consulting firm. They added features like user assessments, assessment feedback, daily wins, and peer chat. They finished every milestone on time, communicated clearly through virtual meetings, and managed the project well. The client praised their skill, responsiveness, and ability to improve the platforms. Biz4Group delivered high-quality apps that met all requirements.

Why Choose Biz4Group:

Biz4Group is a good choice if you need more than basic app development. They build GPT-based systems, chatbots, and IoT dashboards that make data useful. They design solutions to fit your business goals and use AI tools to keep projects practical and up-to-date. Typical projects start at $25,000, especially when automation or AI is a priority.

8. Iflexion

Iflexion has over 20 years of experience in software development. They have survived multiple technology cycles and built institutional knowledge. They focus on medium to large enterprises and understand the challenges of scaling Python applications in important environments. They do not chase trends. 

They build custom frameworks and backend systems that are secure, stable, and maintainable. If you have legacy systems or technical debt, Iflexion can modernize them and turn them into scalable Python solutions.

Core Python Development Services:

• Custom Python development
• ML, analytics, and data modeling
• Backend development with Django and Flask
• API development and microservices
• Cloud migration for Python platforms
• Integration with legacy and ERP systems

Technology Stack:

Python, Java, .NET, PHP, JavaScript, Django, Flask, React, Angular, AWS, Azure, Google Cloud, Elasticsearch, PostgreSQL, Oracle, Docker, Kubernetes

Custom Software Development Case Study:

Iflexion built a full mobile app for parking management, which let users track parking time, get notifications, and extend or move their parking remotely. The app connected to city sensors, showed real-time availability, and stored parking history. The client praised Iflexion’s technical skill, project management, and dedication, noting the team treated the project like their own. The collaboration runs smoothly, milestones are met on time, and the app is now undergoing performance testing.

Why Choose Iflexion:

Choose Iflexion for complex enterprise projects that need proven expertise. They are good for companies with legacy systems that need Python modernization. They can build custom frameworks for unique business requirements. They are best for medium to large businesses with budgets starting at $50,000. Stability, scalability, and enterprise-grade quality are their focus.

9. Simform

Simform focuses on digital product engineering with a cloud-first approach. They build Python applications that are scalable and ready for growth. Their team works with cloud platforms, microservices, and containerized systems. They design Python solutions that can grow from 100 users to 100,000 users without a full rebuild. Their approach makes applications resilient, distributed, and able to handle high traffic.

Core Python Development Services:

• Python software development
• AI, ML, and data science projects
• Cloud native Python applications
• API and backend development
• Web platform development
• DevOps and CI/CD for Python environments

Technology Stack:

Python, Go, Java, .NET, JavaScript, Django, Flask, React, Angular, Node.js, TensorFlow, AWS, Azure, Google Cloud, Kubernetes, Docker, PostgreSQL, MongoDB

Python Development Case Study:

Simform supported a software startup with AWS architecture and Python, React, JavaScript, and TypeScript development. The team delivered the first and second product versions on schedule. Simform helped with features, landing pages, and cloud setup. The client praised Simform’s technical skills, project management, and proactive approach, noting the team treated the product like their own. 

Why Choose Simform:

Choose Simform if your project needs to scale quickly and reliably. They are strong for SaaS companies, startups planning growth, or enterprises moving to cloud-native systems. They design applications with scalability, resilience, and cost efficiency in mind. Simform can build systems that handle variable loads and horizontal scaling. Projects typically start at $25,000 and above.

10. ELEKS

ELEKS works at the intersection of Python development and digital transformation. They focus on fintech, logistics, and healthcare. They do more than write Python code. They help organizations change how they operate using technology. Their approach combines backend Python expertise with UI/UX design and cloud-native delivery. This creates solutions that are powerful and easy to use.

Core Python Development Services:

• Custom Python Solutions
• ML and computer vision solutions
• Data engineering and analytics
• Backend development with Django and Flask
• Python-based automation
• Cloud architecture and integration
• Digital transformation using Python

Technology Stack:

Python, C++, Java, .NET, JavaScript, Django, Flask, React, Angular, TensorFlow, PyTorch, AWS, Azure, Google Cloud, SQL Server, PostgreSQL, Big Data tools

Custom Software Development Case Study:

ELEKS has provided Java developers for a technology and consulting company since 2005, supporting ERP development, automation control, and other projects using Java, PostgreSQL, and Delphi. The team acts as an extension of the client’s staff, meeting twice a week and maintaining smooth communication. The client praised ELEKS for recruiting and training top-performing IT professionals and for managing the engagement effectively. The collaboration has been consistently successful, with no major areas for improvement.

Why Choose ELEKS:

ELEKS is your choice if you want to transform how your organization works. They are strong for fintech, logistics, and healthcare, where compliance, security, and user experience all matter. They have teams in the USA and Europe for flexible engagement. They are best for projects starting at $50,000 where you need Python expertise and a focus on business transformation.

How We Selected The Top Python Development Companies

We evaluated top Python development outsourcing companies based on client reviews, technical expertise, industry experience, and long-term support. Here's how we did it:

• Verified Client Reviews
  We chose companies with at least a 4.5/5 Clutch rating and 15 verified reviews. Clutch is a trusted source for B2B feedback. We wanted to make sure all companies are approved by real clients.
• Technical Expertise
  Our team checked skills in Python frameworks like Django, Flask, and FastAPI. We also looked at AI and ML tools like TensorFlow and PyTorch. Knowledge of cloud platforms such as AWS, Azure, and Google Cloud was required.
• Industry Experience
  We looked for companies with a strong track record in different industries. We wanted firms that can deliver projects on time and within budget.
• Service Portfolio
  Top companies do more than Python development. We favored those offering web and mobile development, AI/ML solutions, and post-launch support.
• Client Retention
  High satisfaction and long-term partnerships show quality. Companies with retention rates over 90% scored higher

Python Development Trends to Watch in 2026

The Python ecosystem keeps changing. The best development partners are those focused on where it is heading. Here are the main trends shaping the landscape:

The Agentic AI Shift

Python is still the main language for building and deploying Large Language Models and Generative AI tools. In 2026, the focus is on Agentic AI. These are systems that can reason, plan, and complete multi-step tasks across enterprise systems with minimal human help.

Over 35% of Python use worldwide is now for AI and ML applications. About 18% of new tech startups use Python in their AI frameworks. Companies that understand this shift can help you build systems that go beyond chatbots to intelligent automation.

Performance Gets Serious

Python used to be called "slow," but modern frameworks are changing that story. FastAPI delivers high-performance APIs with improved concurrency and faster response times. Django continues to evolve with better scalability for distributed systems.

These improvements make Python competitive for applications that previously required languages like Go or Rust. Your development partner should understand when and how to apply these performance optimizations.

Cloud-Native Becomes Standard

Nearly 25% of companies now use Python packages for scalable cloud operations. Serverless Python applications, container orchestration with Kubernetes, and multi-cloud deployments are becoming baseline expectations rather than advanced capabilities.

The development companies worth working with have deep experience across AWS, Azure, and Google Cloud. They understand infrastructure as code, container deployment, and the patterns that make cloud-native Python applications reliable and cost-effective.

Data Science and ML Continue Dominating

With over 70% of ML engineers and data scientists using Python as their primary language, this isn't changing anytime soon. TensorFlow, PyTorch, Scikit-learn, and Pandas remain the tools of choice for everything from predictive analytics to computer vision.

If data is central to your business strategy, your Python development partner needs legitimate expertise in these tools, not just familiarity with the documentation.

Wrapping Up On The Top Python Development Companies

Choosing the right Python development partner can make or break your project. From AI-powered platforms to scalable web applications, the companies on this list have proven experience, strong technical skills, and the ability to deliver results. If you want to succeed, you need to understand your project goals and select a team that fits best.

If you want a partner with deep Python expertise, AI and ML capabilities, and a track record with top global clients, Azumo is ready to help. Contact Azumo today to discuss your project and see how their team can turn your ideas into reality.