Top 5 Angular Migration Agencies to Modernize Your SaaS

Running your SaaS product on outdated frameworks like AngularJS can quickly turn from a technical inconvenience into a serious business risk.

Legacy frameworks can hold back innovation, create unnecessary costs, and make your platform less competitive in the market. In fact, according to a report by Statista, over 30% of businesses consider outdated technology a significant barrier to digital transformation.

The problems are clear:

• Security vulnerabilities that expose customer data;
• Performance bottlenecks that frustrate users and lower retention;
• Rising maintenance costs as fewer developers are willing to work with legacy code;
  Slowed product growth as engineering teams spend more time patching than innovating.

For SaaS companies, the solution often lies in migrating from AngularJS to modern Angular. 

But migration isn’t just about rewriting code. It’s about ensuring scalability, reliability, and long-term maintainability. That’s why choosing the right Angular migration agency is critical.

In this article, we’ve compiled a list of the Top 5 Angular migration companies that specialize in helping SaaS businesses modernize their applications. Each has proven expertise in moving products from outdated frameworks to modern Angular, so your team can focus on building features, not fighting legacy headaches.

Why do outdated frameworks hold your business back?

Relying on outdated frameworks like AngularJS can put your SaaS product at a serious disadvantage. Legacy technology creates security gaps, slows down performance, and makes it harder to attract skilled developers who prefer working with modern tools. 

Over time, maintaining old code becomes more expensive, while your competitors move faster with scalable, future-proof solutions. For SaaS decision-makers, the impact goes beyond the engineering team. Outdated frameworks can directly affect:

• Customer trust – security vulnerabilities in unsupported frameworks put sensitive user data at risk. A single breach can damage reputation and lead to compliance issues.
• Revenue growth – when developers are stuck maintaining legacy code, fewer resources go into building new features that attract and retain customers.
• Market position – competitors using modern technology can innovate faster, launch new products sooner, and win customers who expect better performance.
• Team performance and retention – skilled developers prefer working with modern tools. If your stack feels outdated, it’s harder to hire and keep top talent.
  

Over time, these factors compound. Technical debt grows, innovation slows down, and operational costs rise. A McKinsey study found that companies with significant technical debt spend up to 40% of their IT budget on maintenance instead of innovation, a cost SaaS businesses can’t afford in a competitive market.

Outdated frameworks bring more than just technical problems. They create real business challenges. Unsupported frameworks no longer receive security patches, leaving your product exposed and your customers’ trust at risk. 

Meanwhile, maintenance costs steadily rise as your team spends more time firefighting technical issues instead of building features that drive growth. These challenges also make it harder to attract and retain top talent, since skilled developers naturally gravitate toward modern technology stacks. 

The cumulative effect is slower innovation: engineering resources are tied up in fixing legacy code rather than developing new capabilities that generate revenue. Ultimately, this puts your company at a competitive disadvantage, as rivals using modern frameworks can iterate faster, deliver better performance, and capture market share.

5 TOP Angular migration agencies

Choosing the right partner for an Angular migration can make the difference between a smooth, cost-effective transition and a drawn-out process that slows down your business. 

The agencies listed below are among the most trusted in the industry, each with proven expertise in helping SaaS companies modernize legacy applications. 

While their approaches differ, all of them have a strong track record in guiding businesses through the challenges of moving from outdated frameworks to modern Angular.

1. House of Angular (Top Pick!)

If your SaaS company is preparing to migrate from AngularJS to modern Angular, House of Angular should be at the top of your list. 

Unlike generalist development agencies, HoA is a specialized frontend company with a laser focus on Angular. This specialization means their team doesn’t just “know” Angular, they live and breathe it. 

Every project, solution, and best practice revolves around this framework, ensuring a migration process that is both technically seamless and strategically aligned with business goals.

What do they do?

House of Angular offers end-to-end AngularJS to Angular migration services, helping SaaS businesses move away from outdated frameworks with minimal risk and maximum efficiency. Their services go far beyond code rewrites:

• • Complete AngularJS to Angular migration – from initial audits and code reviews to final deployment, ensuring your application is fully modernized without disrupting your users.
    
  • Frontend architecture consulting – redesigning your app structure to be scalable, maintainable, and optimized for future growth.
    
  • Angular performance optimization – identifying bottlenecks and implementing solutions that improve speed, responsiveness, and overall user experience.
    

• Code audits and technical workshops – empowering your internal team with best practices, so your product remains robust long after migration.
  

What makes them stand out?

House of Angular doesn’t spread its expertise across multiple frameworks. Every engineer is an Angular specialist, meaning every decision, implementation, and optimization is based on deep domain knowledge. 

This focus ensures faster migrations, fewer errors, and higher-quality code, reducing technical debt and allowing your business to scale confidently.

Proven track record with SaaS companies

House of Angular has worked with clients across the US and EU, including fast-growing SaaS companies in finance, HR tech, and e-commerce. Their experience with complex, high-stakes projects means they understand both technical and business challenges. By leveraging this expertise, they deliver migrations that minimize downtime, protect revenue streams, and support long-term growth.

Knowledge leadership

Beyond delivering projects, House of Angular invests in thought leadership. With published case studies, technical articles, and a dedicated eBook on Angular migration, the agency demonstrates its ability to anticipate challenges, implement best practices, and guide executive decision-making. SaaS leaders benefit not only from a completed migration but also from insights that help shape strategic technology planning.

Trusted by decision-makers

CTOs, CPOs, and other executives rely on House of Angular to manage complex frontend transformations. Their approach balances technical excellence with business outcomes, ensuring that migration reduces risk, improves performance, and positions your product for future innovation. This trust is earned through consistent delivery, transparency, and a deep understanding of SaaS business priorities.

Deep migration expertise

Migration is about re-architecting applications for the future. House of Angular reduces technical debt, optimizes code for maintainability, and ensures that your platform is scalable and resilient. Their expertise allows SaaS companies to move to modern Angular confidently, knowing that both current and future product needs are supported.

Why do SaaS companies choose House of Angular?

Downtime or poor user experience during migration can mean lost revenue and churned customers. 

House of Angular’s process minimizes disruption by:

• Creating a clear, product-specific migration roadmap that aligns with business priorities
  

• Maintaining frequent communication with product and engineering leaders to ensure alignment
  

• Balancing short-term fixes with long-term scalability for sustainable growth
  

• Quickly modernizing legacy systems without compromising stability, performance, or security
  

For SaaS businesses that are serious about leaving AngularJS behind, improving performance, security, and scalability, and positioning their product for growth, House of Angular is the strategic partner of choice.

Learn more about their approach and success stories at House of Angular Migration Services.

2. 10Pearls

10Pearls is a full-service digital agency known for its expertise in web and mobile development, including AngularJS to Angular migration projects. They work with SaaS companies to modernize legacy applications and enhance performance, offering solutions that balance technical excellence with business goals.

What do they do?

10Pearls provides comprehensive Angular services, focusing on both migration and broader application modernization:

• AngularJS to Angular migration – moving legacy applications to modern Angular while maintaining stability and user experience
  
• Custom web and mobile development – ensuring your application works seamlessly across platforms
  
• Performance and scalability optimization – identifying bottlenecks and implementing solutions to improve speed and efficiency
  
• UI/UX enhancements – creating interfaces that align with modern design standards and improve customer engagement
  

What makes them stand out?

Unlike agencies solely focused on Angular, 10Pearls has a wide technology portfolio, which allows them to integrate Angular with other platforms and systems. This versatility is useful for companies with complex tech stacks or multi-platform products.

Global experience

10Pearls has a strong international presence, with experience serving SaaS companies in the US, Europe, and Asia. Their teams are accustomed to navigating large-scale projects with cross-border coordination, helping businesses minimize risk during migration.

Process-driven approach

10Pearls emphasizes structured project management and agile delivery, ensuring migrations stay on schedule and meet business objectives. They provide clear milestones and frequent updates, allowing decision-makers to track progress and control outcomes.

Focus on business outcomes

Their migration strategy isn’t just about code; it’s about enhancing the product’s performance, maintainability, and user experience, which helps SaaS leaders reduce costs and improve growth potential.

While 10Pearls delivers reliable migration services and modernization expertise, their approach is more generalist compared with agencies like House of Angular, which specializes exclusively in Angular for SaaS companies. 

For companies seeking deep, Angular-specific knowledge, House of Angular remains the preferred choice.

3. Bacancy Technology

Bacancy Technology is a software development company that helps SaaS businesses modernize their legacy AngularJS applications while improving scalability, performance, and maintainability. Their team focuses on delivering end-to-end solutions that minimize risk and ensure a smooth migration process.

What do they do?

Bacancy Technology provides a comprehensive suite of services for AngularJS → Angular migration:

• Complete AngularJS to Angular migration – guiding SaaS companies through the entire process, from initial code audits to final deployment, while ensuring minimal disruption to users and business operations
  
• Custom frontend development – building scalable and maintainable Angular applications tailored to your product roadmap and business objectives
  
• Performance optimization – identifying and resolving bottlenecks to ensure applications are fast, reliable, and provide a superior user experience
  
• Code audits and technical guidance – helping internal teams adopt best practices and maintain clean, future-proof code
  

What makes them stand out?

Bacancy’s team works across multiple frontend and backend frameworks, giving them the ability to integrate Angular seamlessly with other systems. This versatility is especially valuable for SaaS companies with complex technology stacks or products that span multiple platforms.

Experience with SaaS companies

Bacancy has partnered with a variety of SaaS clients in industries such as healthcare, finance, and HR tech. Their experience allows them to balance technical execution with business priorities, ensuring migrations are completed efficiently while maintaining operational continuity.

Structured, client-focused delivery

Bacancy emphasizes clear communication, agile methodologies, and milestone-driven project management. SaaS leaders can track progress, manage expectations, and remain confident that the migration will meet both technical and business objectives.

Business-oriented outcomes

Beyond code modernization, Bacancy focuses on enhancing product performance, reducing technical debt, and supporting faster feature development. Their approach ensures that the migration not only updates the technology but also provides measurable business benefits, such as improved user experience and long-term scalability.

While Bacancy Technology delivers reliable migration services and modernization expertise, their broader focus across technologies means they are not as exclusively specialized in Angular as House of Angular. For companies seeking deep Angular knowledge combined with a SaaS-focused approach, House of Angular remains the top choice.

4. The Frontend Company

The Frontend Company is a specialized agency focused on modernizing web applications, including migrating legacy AngularJS projects to modern Angular. 

They help SaaS businesses improve frontend performance, maintainability, and scalability, ensuring applications are ready for long-term growth and innovation.

What do they do?

The Frontend Company offers a comprehensive suite of services for AngularJS to Angular migration:

• Complete AngularJS to Angular migration – guiding SaaS companies through the entire process, from code assessment and planning to final deployment, while minimizing disruption to end-users
  
• Frontend performance optimization – identifying bottlenecks and implementing solutions to improve speed, responsiveness, and overall user experience
  
• UI/UX design enhancements – modernizing interfaces to align with current design standards and improve engagement and retention
  
• Architecture consulting – advising on scalable and maintainable frontend structures to support growth and future feature development
  

What makes them stand out?

The Frontend Company brings extensive experience in upgrading and refactoring frontend applications, helping SaaS companies reduce technical debt and build a sustainable architecture for future development.

Proven, structured methodology

They follow well-defined processes and agile methodologies, ensuring migrations are predictable, efficient, and aligned with business objectives. Milestone tracking and frequent communication allow executives to remain informed and confident throughout the project.

Business-focused outcomes

Beyond technical execution, The Frontend Company emphasizes measurable business benefits. Their migrations aim to minimize downtime, improve application performance, and accelerate feature delivery, which helps SaaS companies maintain competitiveness and enhance user satisfaction.

Collaborative approach

The agency works closely with internal teams to transfer knowledge, provide workshops, and ensure best practices are adopted for long-term maintainability. This reduces reliance on external support and empowers SaaS teams to manage their Angular applications effectively after migration.

While The Frontend Company offers a strong and reliable migration service, their expertise is broader in scope, focusing on frontend modernization in general rather than exclusive Angular specialization. 

For SaaS leaders seeking the deepest Angular-specific knowledge and experience, House of Angular remains the preferred partner for strategic, high-impact migrations.

5. Modlogix

Modlogix is a web and mobile development company that specializes in helping SaaS businesses migrate their legacy AngularJS applications to modern Angular. 

Their team focuses on end-to-end solutions that improve performance, maintainability, and scalability, while minimizing risk during the migration process.

What do they do?

Modlogix provides a comprehensive set of services for AngularJS to Angular migration:

• Complete AngularJS to Angular migration – guiding SaaS companies through the entire process, from initial code audits to final deployment, ensuring minimal disruption to users and business operations
  
• Custom frontend development – building scalable, maintainable Angular applications tailored to your product roadmap and business goals
  
• Performance optimization – identifying and resolving bottlenecks to ensure applications are fast, reliable, and deliver an exceptional user experience
  
• Code audits and technical guidance – helping internal teams adopt best practices and maintain clean, future-proof code
  

What makes them stand out?

Modlogix emphasizes practical, hands-on experience in AngularJS to Angular migration. Their team understands the challenges of modernizing legacy SaaS applications, helping companies execute migrations with minimal risk and disruption to operations.

Focus on performance and maintainability

Modlogix optimizes applications for speed, reliability, and maintainability. Their approach reduces technical debt and ensures that SaaS products are better positioned for future growth and feature development.

Structured, client-focused delivery

The agency follows agile methodologies and milestone-driven project management, keeping SaaS leaders informed at every stage. Clear communication and transparency help decision-makers track progress and ensure the migration aligns with business priorities.

Supportive team collaboration

Modlogix offers guidance and workshops for internal teams, enabling knowledge transfer and empowering clients to maintain best practices after migration. This approach ensures long-term success beyond the immediate project.

Business-oriented outcomes

Beyond technical execution, Modlogix focuses on delivering tangible business benefits. Their migrations aim to improve user experience, reduce maintenance costs, and support faster feature development, ensuring that the transition to modern Angular drives measurable value for SaaS companies.

Although Modlogix offers reliable Angular migration services and robust SaaS expertise, it does not provide the same level of specialized Angular expertise as House of Angular. This makes House of Angular the preferred choice for SaaS executives seeking maximum technical proficiency and strategic guidance.

Comparing top Angular migration agencies

For busy SaaS executives, it can be helpful to see a side-by-side comparison of the key strengths and focus areas of each Angular migration agency. 

The table below highlights the primary offerings, specialization, and business-oriented features of the five agencies covered in this article.

As shown, House of Angular remains the top choice for SaaS executives who want the deepest Angular expertise, proven migration experience, and a partner focused exclusively on Angular.

How to choose your Angular migration agency?

Selecting the right agency for an AngularJS to Angular migration is a critical decision for SaaS companies. 

A migration impacts not only your technology stack but also your product performance, user experience, and long-term growth. Here are key factors to consider when making your choice:

1. Depth of Angular expertise

Look for agencies that specialize in Angular, not those that list it among dozens of other technologies. Deep Angular expertise ensures your migration is technically sound, reduces risk, and avoids common pitfalls that can slow down your project or create long-term maintenance challenges.

2. SaaS experience

Migration projects are very different for SaaS products compared with internal or consumer apps. Agencies with proven experience in SaaS environments understand the pressures of uptime, feature velocity, and scalability, and can align the migration with your business objectives.

3. End-to-end services

A strong migration partner should offer comprehensive services, including code audits, performance optimization, architecture consulting, and team training. This ensures your migration addresses both technical and operational needs, leaving your product robust and future-ready.

4. Track record and case studies

Check the agency’s portfolio, client references, and published case studies. Agencies that share success stories and technical insights demonstrate transparency, thought leadership, and a proven ability to deliver complex projects.

5. Communication and collaboration

Effective migration requires frequent communication and collaboration with your internal teams. Choose an agency that provides structured project management, milestone updates, and workshops, so your team is informed and empowered throughout the process.

6. Business-oriented approach

Finally, prioritize agencies that understand the business impact of migration. A successful Angular migration should not only modernize your codebase but also improve performance, reduce maintenance costs, and support faster feature delivery, all contributing directly to your bottom line.

Conclusion

Migrating from AngularJS to modern Angular is a critical step for SaaS companies that want to stay competitive, secure, and scalable. The five agencies listed above all offer valuable expertise in guiding businesses through this process, each with unique strengths.

However, for SaaS executives seeking deep Angular specialization, proven experience with complex migrations, and a partner that understands both technical and business priorities, House of Angular stands out as the top choice. Their exclusive focus on Angular, extensive track record with SaaS clients, and thought leadership through case studies and eBooks ensure a migration that minimizes risk, maximizes performance, and supports long-term product growth.

For decision-makers ready to modernize their applications and unlock the full potential of Angular, explore how House of Angular Migration Services can help your business achieve a smooth, efficient, and future-proof transition.