QuantaSi is a South Bend, Indiana based Managed Security Provider helping businesses secure their data, optimize their IT Infrastructure, and proactively anticipate curveballs, all while protecting clients’ online presence and granting peace of mind.  We provide IT Support and Services to businesses in South Bend, Mishawaka, Elkhart, Goshen, Plymouth, Rochester, Niles, Edwardsburg, Cassopolis, and the surrounding areas in Indiana and Michigan.

Unhappy with your current provider and ready for a change, but Think changing Service Providers is hard?

We not only understand the reluctance to switch Managed Service Providers (MSPs) due to perceived complexities but also actively address this concern with a robust solution. Our commitment to making IT ‘just work for you’ is reinforced by our meticulous 100-point checklist, designed to ensure a thorough and seamless transition. This comprehensive checklist covers every aspect of the onboarding process, from data migration to system integration, guaranteeing that no detail is overlooked. At QSI, we pride ourselves on our attention to detail, and this checklist serves as a testament to our dedication to making the switch hassle-free for our clients. Trust in our expertise, and let us guide you through a smooth transition, unlocking the full potential of our advanced services AND your Business! Make the leap with confidence and experience a seamless migration to a new era of IT excellence with QSI!

Contact Us Today To Learn More About How We Can Help!

Large Ideas Helping Local BUSINESSES

At QuantaSi, our consulting services are built around a simple premise: you shouldn’t have to sacrifice quality or service levels when working with your IT Provider.

We’re an IT Support and Managed Services Provider with a proven track record of delivering results for our clients. Whether you’re looking for an end-to-end solution or just need help with a specific component of your security or infrastructure, we have the experience and expertise to get the job done right.

Whether you are a Business Owner who wants the peace of mind that their IT Support needs are being handled or an IT Manager looking to augment their staff’s capabilities, QuantaSi has a solution to help.

What Our Clients Say

"QSI has been a great partner to our organization; very responsive in critical situations, takes the time to explain things in detail, and looks ahead and alerts us to potential down stream issues on projects and offers potential solutions for us to consider beforehand. Additionally, the team is personable and easy to work with."

-David S., Global Access Point

"QuantaSi has been a fantastic partner in working with our company (Steel Warehouse) in a very complex domain migration projects. Their staff was extremely knowledgeable and responsive and were able to pivot when we hit roadblocks along the way. Highly recommend!"

-Eliezer W., Steel Warehouse

"QuantaSi helped us through the complex design and implementation of our digital computing infrastructure. Their knowledge has helped scale our company while implementing the best cybersecurity principles. They are world-class experts and build technology to last."

-Nate M., CEO, Consensus Networks

"We recently worked with QuantaSi to perform an in-depth network audit/review and the results far exceeded expectations. The information they provided was highly detailed and will be very beneficial to us moving forward. Working with QuantaSi was a pleasurable experience, and I look forward to working with the team in the future."

-Ian H., Chase Plastics

"I recently opened an Accounting Firm and the guys did amazing making sure I was set up timely and efficiently. Highly recommend!"

-Angela R., Star Accounting

"Back in 2021, we upgraded to fiber throughout the fairgrounds. At the time, we had a alternate company doing our IT maintenance and upkeep. A company named EnFocus helped us get everything set up and partnered us with QuantaSi to manage the health and maintenance of the devices. I was very impressed with their professionalism, knowledge and sense of urgency when we had a problem. Over the next two years they helped us troubleshoot problems and worked out all of the kinks of our new network. In May of 2022, our contract with the other company was up. I spoke to Nick Hahaj from QuantaSi about taking over all of our IT needs. They have done an amazing job helping us upgrade obsolete equipment to make our network more efficient. I would recommend QuantaSi to anyone in need of their services. "

-Jeremy B., St Joe County Fair

If you’re thinking of switching your IT Support Provider, this guide is a must-read!

One of the most important decisions you can make for your business is whom you will entrust to be your IT Services Provider.

When your IT Service works you don’t even know they are there. When they don’t it can be a frustrating and painful experience for you and your team.

When you’re constantly battling downtime and services that don’t work, it’s exhausting. And that impacts everything your business does.

Working with our partners over the past few years has taught us what businesses need from their IT Service Providers. Read our Guide to Buying IT Services before you make a decision to switch. It’s free and will help you ask the right questions of whomever you speak to about IT Services.

It’s not about us; it’s about all IT support companies and how to choose the right one for you. Inside, you’ll discover:


  • Why you want a partner that thinks strategically
  • The reasons business owners and managers like you switch IT support providers
  • How to protect the most important asset your business owns
  • And why you should be highly skeptical of all IT support businesses (yes, including us)

Team Of Experts

Our team of experts provides the latest in Managed Security and Technology Solutions. Our Security Solutions include Managed Next-Gen Firewall Services, Managed Vulnerability Management, Managed Email and End User Security, Data Loss Prevention and more.

Our Engineers have combined over 20 years’ Experience Designing, Deploying and Supporting Information Technology Solutions, ranging from Desktop Support, to Hybrid Cloud Environments, all the way to Nationwide Wide-Area Networks.

Securing Your Future

Your future can be scalable, efficient, secure and cost-effective with QuantaSi. We deliver cutting-edge technology to remove the barriers to your business’s growth. QuantaSi can assist your company in building its future.

Contact Us Today To Learn More About How We Can Help!

On the battle front: Protect your business from these cyber security threats in 2024

We’re weeks away from the new year. And this is a great time to start thinking about what needs to get better in 2024.

We believe you should allocate a little more of your business’s precious resources on cyber security.

Because as technology develops, so do the techniques used by cyber criminals to trick you and your team out of your precious data… and ultimately, your business’s money.

Our latest guide explains what the risks are in 2024 and beyond, and the security measures to stay protected.

Download your free copy now.

Anticipating Cybersecurity Challenges in 2024: Prepare for the New Year

As we approach the dawn of 2024, it’s crucial to turn our attention to the evolving landscape of cybersecurity. Now is the perfect moment to reflect on areas that demand improvement in the coming year.

In the upcoming year, we foresee a significant uptick in cybercrime, marked by a surge in ransomware, heightened attacks on mobile devices, and an increase in phishing scams. However, these threats represent just a fraction of what may unfold.

Being forewarned is being forearmed. Understanding the potential risks empowers you to take proactive measures to safeguard your valuable data.

Discover the insights in our latest video for a comprehensive overview of the cybersecurity considerations for 2024.

As always if you have any questions or are ready to purchase contact us!

Protect your business email with these 3 Tips!

Email is the most common way cyber-criminals gain a foothold in your network.

Our Video gives you three things you can do right now to protect your email and make it harder for criminals to attack your business.  Contact us if you need assistance, we have solutions to secure your email!