The consultancies and vendors that actually do PowerBuilder modernization work, and what each one specializes in. This is a general market overview, not a paid placement or an endorsement.
Automated COBOL, RPG, Natural, and PowerBuilder to Java or C# conversion
Blu Age was founded in France in 2000 and acquired by Amazon Web Services in November 2021; its automated conversion platform now ships as part of AWS Mainframe Modernization. It converts COBOL, RPG, Natural, and PowerBuilder source into Java or C#, and is the vendor behind one of the largest publicly documented conversions in the industry: 12 million lines of COBOL converted to Java for an insurance client in roughly six months.
Best for: Organizations with an AWS-centric cloud strategy converting at scale, not maintaining in place.
Large-scale enterprise modernization consulting
A large systems integrator with a broad mainframe modernization practice, typically engaged for enterprise-wide transformation programs rather than a single application.
Best for: Large organizations running a formal, multi-year modernization program.
PowerBuilder's current owner and modernizer
Appeon has owned PowerBuilder's development and support since a 2016 agreement with SAP, and sells tooling to modernize PowerBuilder applications' UI and deployment model without a full rewrite.
Best for: Existing PowerBuilder shops that want the application modernized, not replaced.
PowerBuilder to .NET or Angular migration
Focuses specifically on migrating PowerBuilder applications to .NET or Angular-based front ends, aimed at minimizing disruption to the underlying business logic during the move.
Best for: PowerBuilder shops that have already decided to leave the platform and want a .NET or web front end.
PowerBuilder support and modernization at scale
An enterprise services firm with dedicated PowerBuilder practice serving clients across the US, India, UK, Australia, and UAE, covering both ongoing support and modernization work.
Best for: Organizations that need PowerBuilder staffing capacity across multiple regions, not just a single project team.