AngularJS support officially ended in January 2022. Many applications built with it still run important business processes, but keeping them on an unsupported framework can make maintenance and security work more difficult. Moving to modern Angular is a substantial engineering project: the two frameworks have different application structures, dependency patterns, and component models.
The best migration approach depends on the size of the application, its integrations, and how much change the business can absorb at once. The companies below publicly offer AngularJS-to-Angular migration or document relevant project experience. This is a shortlist to investigate, not a scored ranking.
What to assess before choosing a vendor
Ask your team to map the application’s modules, routes, controllers, directives, services, third-party libraries, tests, and API dependencies. Identify the journeys that cannot break and the periods when releases must be limited.
Then ask each provider to compare two possible approaches: moving sections incrementally while the old and new applications coexist, or rebuilding the frontend in a larger release. The answer should reflect your actual codebase. A phased migration can reduce the size of each release, but it also creates a temporary period in which two frameworks must be maintained.
The proposal should explain how the provider will replace obsolete dependencies, preserve accessibility and user workflows, validate performance, and remove AngularJS completely at the end.
1. ModLogix — migration within broader legacy modernization
ModLogix specializes in updating existing software and publishes AngularJS-to-Angular migration case studies. Its examples include enterprise platforms where frontend migration was part of a wider modernization effort involving dependencies and business workflows.
Consider it for: A complex legacy application whose frontend is closely connected to older backend services or other modernization work.
Ask about: How the team would prioritize modules and protect existing user journeys during a staged migration.
2. Itransition — Angular development and migration
Itransition explicitly offers migration from AngularJS and other older technologies to Angular. Its Angular services include development practices such as code reviews and testing alongside the migration work.
Consider it for: A business application that needs a dedicated Angular team as well as ongoing frontend development.
Ask about: How existing interface behavior will be validated and which parts, if any, should be redesigned rather than copied.
3. ScienceSoft — Angular and application modernization
ScienceSoft lists AngularJS-to-Angular migration among its Angular development services. Its wider application modernization offering may be useful if the frontend update also depends on backend, cloud, or integration changes.
Consider it for: A web application where frontend migration is one part of a larger technical refresh.
Ask about: How the project will coordinate frontend changes with APIs, data flows, and deployment environments.
4. Devox Software — phased AngularJS migration
Devox Software has a dedicated AngularJS-to-Angular migration service page describing a phased approach to replacing components, services, and routing logic. That may fit teams that need to keep delivering product changes during the transition.
Consider it for: An application that must remain available and continue evolving while migration proceeds.
Ask about: The practical boundaries between old and new modules and how long the temporary hybrid architecture would remain.
5. House of Angular — Angular-focused expertise
House of Angular offers Angular migration services, including migration from AngularJS. A specialist team can be useful when the main challenge is the frontend architecture rather than a broader enterprise technology program.
Consider it for: A team seeking focused help with the Angular application and its migration path.
Ask about: How the new architecture will be structured so future Angular updates are manageable.
Compare candidates on a representative module
Before signing off on a full migration, select a module with meaningful routing, data access, forms, and dependencies. Ask each shortlisted company how it would migrate that module and what it needs to learn first.
A useful pilot should produce more than working code. It should establish:
- A repeatable pattern for components, services, state, and routing.
- Tests that prove the new module preserves required behavior.
- An approach for shared styling and design consistency.
- A strategy for replacing unsupported libraries.
- A realistic estimate for the remaining modules based on what the pilot revealed.
Define completion carefully. A screen that renders in Angular may still depend on AngularJS services or outdated packages. The end goal is a maintainable application with documented ownership, working tests, and a clear update path.
Final thoughts
AngularJS-to-Angular migration is an opportunity to remove years of accumulated frontend constraints, but it needs a plan grounded in the existing application’s behavior. Choose a partner that can explain its migration sequence, test critical workflows, and show when the old framework will finally be retired.
