Proof in numbers

5 minutes

Average response

40+ years

Local experience

36 experts

Team members

How we started

45+ years strong as an MSP and still growing...

Since 1981, Kelser has grown into a team of engineers and cybersecurity experts serving some of the largest organizations in Connecticut and across the Northeast.

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We're family-owned, Glastonbury-based, and still built on the same idea — technology should work for people, not the other way around.

We still believe great IT support starts with listening, responding quickly, and treating clients like partners—not tickets.

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And we don't stop at the office. Through our annual Kelser Charity Challenge, we've raised over $1.2 million for local causes — because being a good neighbor has always been part of the job.

Our values

What drives us

Our core values guide every client interaction, every day.

Your business first

Technology shouldn't feel confusing. We explain things clearly, keep you informed, and make sure you always know what's happening with your IT.

Fast, proactive support

We respond quickly and fix issues before they disrupt your day, so you can focus on your work.

Clear communication

Technology shouldn't feel confusing. We explain things clearly, keep you informed, and make sure you always know what's happening with your IT.

True partnership

We build lasting relationships, treating every client like family and are always going the extra mile for you.

Our ideal clients

Who we help best

We serve Connecticut organizations who want reliable IT and a partner who truly cares about their success.

Many of our client relationships span years, and in some cases decades, because we focus on people just as much as technology. We are often the right fit for:

  • Connecticut businesses, 25–150 employees
  • Insurance, financial, and healthcare firms
  • Law firms, auto dealers, nonprofit organizations
  • Organizations valuing strong partnerships

Testimonials

The strongest proof of our work isn't what we say—it's what our clients say

The teams at Kelser are some of the most collaborative and professional

I’ve had the opportunity to work with in the past 15 years. They are kind, fair and exceed expectations across the board!

Kelser Corporation logo

Georgia Proudfoot

We have a great relationship with Kelser Corporation. Matt Hoskin, VP Finance, is very easy to work with and extremely helpful. Couldn’t ask for a better partner!

Jeff Ehret

“Kelser’s charitable golf event is one of those rare combinations of purpose and people done right. It supports a truly meaningful causes. What stands out just as much is the Kelser team—great people who consistently go above and beyond, volunteering their time and energy to make the event first-class year after year.

It’s also a reflection of the kind of partner Kelser is in business: collaborative, generous, and committed to building strong, lasting relationships. Proud to support an event—and a team—that leads with both heart and integrity.”
Smiling IT professional headshot, Kelser Corporation managed services team member, Glastonbury CT

John Garrison

“As a trusted partner, we’ve had the opportunity to work closely with Kelser Corporation of Glastonbury, Connecticut and the experience has consistently exceeded expectations. Their team brings a high level of professionalism, technical expertise, and accountability to every engagement. Kelser operates with integrity and transparency, making collaboration, seamless and effective from planning through execution. What truly sets them apart is their commitment to understanding their customers needs and delivering solutions that are both practical and forward thinking. communication is clear timelines are respected and challenges are handled practically with a solutions first mindset. It’s evident that the culture is built around long-term relationships rather than short term wins. we value Kelser corporation as a partner we can rely on and confidently recommend them to any organization, seeking a dependable knowledgeable in results driven firm.”

Jim Robbins

Recognized for excellence

Our awards and certifications

Industry recognition proves our commitment to your business.

Committed to our community

More than an IT company

Being part of the Connecticut business community means more than providing IT support.

Through the Kelser Charity Challenge, our team, clients, and partners have helped raise more than $1.2 million for local organizations and causes throughout Connecticut.

We're proud of the technology solutions we deliver, but we're equally proud of the impact we make beyond the office. Supporting our community isn't something we do once a year.It's part of who we are.

The future

Your future, our promise

Technology will continue to change. The way we care for our clients won't.

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We promise industry-leading response times, strict SLOs, and a team that always goes the extra mile—so your business is always supported by experts who care.

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As technology evolves, we’ll keep delivering fast, friendly, and proactive IT support, so you can focus on what matters most—your business and your people.

Our team

Meet our biznologists

Get to know the dedicated people who make Kelser a trusted partner for Connecticut businesses.

Proactive IT, Monthly Pricing With No Surprises

Know your costs before you commit

No mystery quotes, no sales pressure. Use our pricing calculator to get an instant estimate based on your team size and the services you need — and see exactly what managed IT will cost your business.