Keep your IBM i / RPG core systems, add what’s missing: bookings, PoD, integrations – without the need to rip-and-replace.
Your legacy systems aren’t a problem. They can be part of the solution – Merisis can help you get more from them.
At Merisis, we don’t shy away from legacy systems or RPG code. In fact, we know they still play a critical role in many organisations. For over 25 years we’ve helped build, maintain and develop many types of legacysystems. In that time, we’ve seen technologies and programming languages come and go. However, some languages, such as RPG, are still seen as the foundation of IBM’s midrange systems – and because of that, we embrace it rather than avoid it.
Trusted to deliver by:
Ready to breathe new life into your legacy system? Talk directly to the Merisis team – no sales script – just a discovery call with useful advice.
By completing this form, you consent to Merisis contacting you in response to this enquiry. We will hold your information for a short period of time whilst we carry this process out. We never pass your details to a third party.
Connect TMS/WMS, telematics and finance with APIs/EDI or a light service layer
Expose bookings, PoD and status to customers without altering your core system
Comply on time (e.g., ICS2 via Descartes) with automated submissions
“We know little about software engineering and yet Merisis were able to extract the information required to allow them to get up and running, including extracting the source code from our previous software support company.
It was such a friendly and yet professional approach, we very quickly found ourselves feeling very comfortable in their company and they did not rush the process, they allowed us the time to understand what they needed from us.
Application Management & Support – IQ Engineers Limited
IQ Engineers Limited
“From delivery of our product, we have seen vast improvements in the way we deliver our works. the information to and from our staff is delivered fast and the facilities we have within our product allows us to be in the know 100% of the time
Merisis always adapted to our needs and improved our own ideas. They always suggested more effective methods of delivery and ease of operating the app / system..”
Custom Software Development, Mobile App Development – Roadway Traffic Management
Karl Ashcroft, Operations Director, Roadway Traffic Management
“Merisis successfully completed the project by the deadline, ensuring compliance with new regulation.
They are very experienced and knowledgeable about the logistics industry, they were very agile and adaptable to the circumstances, where necessary delivering the solution real time to meet the deadline. Merisis did a fantastic job.”
Custom Software DevelopmentUX/UI Design – NYK Group Europe
Our experience with RPG goes back decades – ever since we first immersed ourselves into the System 36, AS/400, iSeries, IBM i and more.
Where many web development agencies might dismiss older programming languages, we recognise the fact that some legacy systems are too large to replace on a whim. We understand its reliability, robustness and continued importance in business-critical environments. We work with what works – and RPG still works
Bespoke and modular websites designed around customer requirements and objectives.
We have decades of experience developing and modernising software for businesses across logistics, engineering, infrastructure and more. When it comes to legacy systems, we bring knowledge that’s both broad and deep – treating RPG and similar languages as familiar ground, not a barrier.
Responding to, and advising our customers regarding websites and e-commerce has always been at the forefront of our services.
Whether your system is handling complex transactions or tying into online platforms, we can help. Our team finds creative solutions that integrate RPG-powered backends with intuitive, modern user interfaces.
The world of apps is continually growing – and we’re always excited to design, build and launch apps on private networks, Apple App store and Google Play store.
Even if your project starts with older code, we know how to develop and extend it for today’s devices. From performance upgrades to legacy system access, we don’t turn away from complexity – we build around it.
We have a lot of experience in bringing together component sub-systems and legacy software with technology solutions and software platforms to help simplify processes and mitigate legacy issues.
This is where we shine. If replacing a core system is too risky or cost-prohibitive, we deliver smart integrations that allow old and new systems to work together – securely, efficiently and purposefully.
Extend the purpose of your legacy systems with a low-risk solution.
Arrange a no-obligation call and speak directly with the people you would be working with in the city of York.
Ready to breathe new life into your legacy system? We’d love to hear from you.
By completing this form, you consent to Merisis contacting you in response to this enquiry. We will hold your information for a short period of time whilst we carry this process out. We never pass your details to a third party.
SOFTWARE DEVELOPMENTBespoke and modular websites designed around customer requirements and objectives.We have decades of experience developing and modernising software for businesses across logistics, engineering, infrastructure and more. When it comes to legacy systems, we bring knowledge that’s both broad and deep – treating RPG and similar languages as familiar ground, not a barrier.
WEBSITES & E-COMMERCEResponding to, and advising our customers regarding websites and e-commerce has always been at the forefront of our services.Whether your system is handling complex transactions or tying into online platforms, we can help. Our team finds creative solutions that integrate RPG-powered backends with intuitive, modern user interfaces.
MOBILE & WEB APPSThe world of apps is continually growing – and we’re always excited to design, build and launch apps on private networks, Apple App store and Google Play store.Even if your project starts with older code, we know how to develop and extend it for today’s devices. From performance upgrades to legacy system access, we don’t turn away from complexity – we build around it.
SYSTEMS INTEGRATIONWe have a lot of experience in bringing together component sub-systems and legacy software with technology solutions and software platforms to help simplify processes and mitigate legacy issues.This is where we shine. If replacing a core system is too risky or cost-prohibitive, we deliver smart integrations that allow old and new systems to work together – securely, efficiently and purposefully.
