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Free your mainframe, future-proof your business. Moving to a mainframe-as-a-service (MFaaS) solution protects your mission-critical data and increases agility while reducing costs immediately.

Enjoy the strength and computing power of the mainframe — and let Ensono worry about everything else

Mainframe-as-a-Service is a monthly subscription model that solves the challenges of your aging mainframe while providing the scalability and flexibility to support your growth. Often, you’ll find that finding the right talent or talent at all to run your mainframe is scarce – not only do we have the people to mitigate staffing risks but we’re the only provider that has a Mainframe Academy. We’re continually investing in this Academy to bring early-stage career talent to the mainframe, in-house and through partnership with educational institutions, to meet your mainframe skills need now and long into the future.

A differentiated level of flexibility

Our MFaaS services include everything you need for running your mainframe environment. We can move you out of your data center into a fully hosted consumption-based OpEx model, or manage your environment in your choice of data center location, with your desired mix of fixed and variable charges. Your costs will always be predictable and transparent to you.

MFaaS Services

Benefits of MFaaS

Lower costs

MFaaS changes your mainframe cost from a capital budget expense (CapEx) to an operating expense (OpEx), freeing the budget and staff to support other urgent initiatives and innovations. Our clients experience on average a 43% ROI.*

Scale and Flexibility

With MFaaS, you can scale capacity up or down and as you consume fewer resources your costs will be reduced. In addition, Ensono Flex® is built into all contracts, allowing you to shift workloads across platforms with no penalty in support of your hybrid cloud journey.

Lower latency

Moving your mainframe out of your data center and locating it in a data center closer to the public cloud provides low-latency connectivity to optimize your modern application architecture and create a seamless path to the cloud. Ensono uses a Modern, Cloud-Connected approach to make that possible.

Maintenance & upgrades

You only pay for computing and storage consumed, not for any maintenance and some upgrades to IT infrastructure. And, you have access to 24/7/365 continuous support.

Disaster recovery continuity

You enjoy reduced downtime in the event of a mainframe failure or disaster with an MFaaS solution. We keep your systems available in case of a disaster. Ensono handles the planning and testing to ensure your systems are available when you need them.


You’ll gain greater control with a higher level of security and will feel more comfortable knowing your systems are secure.


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Choose the right MFaaS Solution for your organization

Ensono’s MFaaS hosting models can help you achieve both short- and long-term goals by reducing costs and providing a flexible foundation for your hybrid IT. You can choose from a variety of outsourced mainframe hosting models, or remote solutions using Ensono’s expert support team.

Ensono employee talking at desk

Fully Managed

Fully managed hosting allows you to focus on your core business and bottom line—not the challenges of operating, maintaining, and upgrading your infrastructure. Move data centers off your books to free capital and bandwidth, while you enjoy the latest hardware, software, and upgrades, all managed by Ensono’s expert team in our facilities. We offer dedicated hosting or Hosted Managed Multi-Tenant Mainframe hosting for even greater savings, flexibility with your consumption usage along with hardened security options.

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Remote Hosting

In a remote hosting relationship, ownership of your company’s mainframe processors and associated systems are transferred to Ensono, while the physical components remain in your data center. With the migration of hardware eliminated, Ensono can quickly begin managing hardware, software and associated licensing, creating immediate cost savings opportunities.

Ensono employee smiling at computer

Remote Infrastructure Management (RIM)

Remote Infrastructure Management (RIM) offers a low-risk transition to managed data center and infrastructure hosting. Ensono’s RIM solution lets your organization maintain control of your mainframe and data center (hardware and software), while our expert support staff manages and monitors your systems 24/7, reducing downtime and speeding the resolution of incidents.

“We outsourced our mainframe platform and support to Ensono to help us manage personnel risk and costs. They have shown themselves to be responsive partners. We’ve been impressed with their technical expertise and their ownership of projects executed on our behalf. Overall, they’ve been an excellent partner.”

Program Manager, Enterprise Architecture & Technology Innovation
$10B – 30B USD, Services Industry

Source: Gartner Peer Reviews

Client success with mainframe-as-a-service

Mainframe-as-a-service resources

Check out some of our latest resources now.

*2022 Forrester TEI Report

Differentiate your organization while our experts manage your mainframe