Who We Are

Marc Saries

Marc Saries, President

Marc has over 20 years of experience as an IT professional, working in both large enterprise and small business environments. He has a Bachelor of Science degree in Marketing from Arizona State University and an MBA in Management Information Systems from Western International University. Under his leadership, Partner Systems has developed into a highly respected and trusted technology resource for small businesses in the Phoenix market. He’s an Arizona native dedicated to his community. Marc has taught both undergraduate and graduate courses in both technology and business and is actively involved in his community through Faith Bible Church and other non-profit organizations.

John Schumacher

Senior Systems Administrator\IT Manager

John has been with Partner Systems for over 15 years and currently heads up our technical team. His wealth of knowledge and experience provides an invaluable asset to our team and our clients. His experience includes managing virtualized environments through VMWare and Hyper-V, network infrastructure, cloud integrations, cybersecurity and more. He is a native of Arizona and studied at Arizona State University.

John Schumacher
Amy Merrifield - Partner Systems

Amy Merrifield

Client Manager
Amy is our Client Manager, and she brings with her over 25 years of experience in working with clients in a variety of industries. She has a Bachelor of Science degree in Business Administration from Southern Illinois University. Amy knows the value of client outreach and the importance of ensuring clients receive the highest level of service possible. Her focus is on providing a positive client experience and securing technical support to solve any issues our clients may have. She is a problem solver who always views obstacles as opportunities and brings creative resolutions to any situation. Along with managing our clients, she is also our Marketing Specialist and oversees our marketing efforts and brand management.

Our Happy Clients

We work hard for our clients and it shows! Not to brag, but they’ve said some pretty nice things about us!

I’ve worked with (Marc & his team at Partner Systems) since 2002 and have developed a long-term working relationship.  Marc’s knowledge of current software, cybersecurity and cloud-based solutions help keep our business secure and compliant in our highly regulated industry.  Marc’s reliability and trustworthiness make him an excellent partner in the success of our practice.

 - Elizabeth V., Financial Services

“Harvest Compassion Centers has been working with Marc and his team at Partner Systems for over two years now and we absolutely trust them with all of our IT needs. They take the time necessary to figure out the best solution for each of our specific needs, especially our most complex problems! Working with Partner Systems has been a great experience and we look forward to several more years of working together!”

 - Nicolee T, CEO/Executive Director of Harvest Compassion Centers

Marc and his team at Partner Systems have gone above and beyond to make sure our network is reliable and secure. They are quick to respond and we trust them to provide sound solutions that keep our business running smoothly.

 - Vince M., CPA

Our Services

Our primary goal is to provide your business with the tools and resources needed to maximize your IT investment and keep your business up and running. We offer a comprehensive suite of services that can be customized to meet your specific needs.
Managed IT Services

Managed IT Services

Our Managed IT Services focuses on maintaining and securing your business network through a variety of tools and resources. Let us manage your IT assets, freeing you to do what you do best…which is run your business.

IT Support Help Desk

IT Support Services

Our team of trained technicians are here to give your employees a trusted resource to help when things go wrong. Fast response times ensure your issues are addressed quickly and efficiently.

Cloud Services

Cloud Services

The wide range of cloud services available to small businesses has grown exponentially over the past few years. We have a wealth of experience in deploying and leveraging these resources to better position your business for the future.



Securing your network goes far beyond just antivirus. Network intrusion, ransomware, and data theft are just a few of the increasingly sophisticated attacks that threaten to bring your business to its knees. Let us work to secure your network through highly advanced tools and resources designed to keep your critical business data safe.

Backup & Business Continuity

Backup & Business Continuity

Our team has years of experience, which allows us to protect your business critical data. Whether it be a hardware failure, data breach or simple mistake, it is vitally important to be able to recover your data from a loss. Our suite of backup solutions ensures not only that your data can be recovered, but we’ll help put a plan in place to be sure that your business remains operational in the event of a disaster.

Backup & Business Continuity

Outsourced IT Services

Sometimes outsourcing your IT just makes sense. Our expert technicians provide the comprehensive IT support you need at a fraction of the cost of hiring full-time internal IT staff.

Learn More About our Services and Call Today

Quality IT services and support are necessary for the success and growth of every business. Partner Systems is your Number One choice for outsourced IT in Phoenix, AZ.

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