Charity Grooms
Service Coordinator
The voice that answers the phone. Triages every ticket and sets every schedule, so the right engineer lands on your problem fast.
U.S. Navy veteran · off the clock: kayaking, and anywhere outdoors
Real names. Real faces. Tulsa.
The people behind your IT
Nine people you’ll actually know by name — no phone tree, no rotating cast of strangers, no offshore tier one. When you call NSN Management, someone on this page picks up.
Quick answer: NSN Management is a nine-person, Tulsa-owned, veteran-led managed service provider (MSP) founded by U.S. Army veteran Sean Fullerton: an in-house support team spanning service coordination, help desk, escalation, and technical alignment, plus business development and finance — all at 2448 E 81st Street in Tulsa. The team holds a 9-minute median first response (Feb–Jul 2026), was named Kaseya/Datto MSP of the Year 2025, and is rated 4.8★ across 31 Google reviews.
Leadership
It starts with an owner who answers for it
Sean Fullerton has run Tulsa managed IT companies since 1999 — and built NSN Management in 2012 to be the one that stays.
A U.S. Army veteran, Sean founded eMonarch in 1999, sold it in 2011, and learned within fourteen months that selling was a mistake. NSN Management is what he did with that lesson: owner-led, Tulsa-owned, and built for owner-run businesses of 10 to 100 people. He co-wrote Special Edition Using Microsoft Active Directory (Que, 2001) and led the company to Kaseya/Datto MSP of the Year 2025 and the Inc. 5000 2026 list. He doesn’t solve tickets anymore — the team below does — but every standard on this page is his to answer for.
The support team
The people who fix things
From the voice that answers the phone to the engineer planning next year — every layer of your support sits in one room in Tulsa. The person who set up your network is the person who fixes it when it misbehaves.
James Loveland
IT Support Lead
Leads the help desk — takes the handoff, owns the ticket, and keeps you posted until it’s actually fixed.
Tulsa Tech graduate · off the clock: camping
Marquis Tumey
IT Support Technician
Front line of the help desk — fast remote fixes and updates in plain English, not ticket-speak.
Newest face on the bench · off the clock: Magic: The Gathering
Phil Becker
Escalation Engineer
Where the hard problems land — server, network, or something nobody has seen before, it escalates to a person, not a queue. Also runs NSN’s own internal IT and central services, so we live on the same systems we sell.
U.S. Army veteran · off the clock: on a Harley Road Glide
Grant Duvall
Technical Alignment Manager
Owns your technology roadmap, quarterly reviews, and major projects — the engineer thinking a year ahead so nothing surprises you.
Northeastern State University graduate · soccer fan, and the office’s official World Cup explainer
- 9-minute median first response · measured Feb–Jul 2026
- In-house help desk — Tulsa, not offshore
- Veteran-led and veteran-staffed
Before and after the tech
The people who make us easy to work with
The first conversation, the honest recommendation, and the invoice that a human can explain — handled by people you’ll get to know, not a system.
Sean Thomas Fullerton, Jr.
Sales Development Representative
Second-generation Fullerton, and often the first voice a Tulsa business hears from NSN — he makes the intro call that starts the conversation.
At OSU · ROTC and National Guard · off the clock: his Ducati, and the family dog, Mia
Katie McCumber
Customer Success Manager
Owns the relationship after the handshake — monthly pulse checks, straight answers, and making sure you never wonder where things stand.
University of Oklahoma graduate · reigning champion, NSN best-dressed
Kara Dawn Slaughter
Finance & Office Manager
A real person behind every invoice — billing questions get answered by someone who knows your account, not a ticket bot. Also keeps the office itself running.
Oklahoma State University graduate · off the clock: crafting · and it’s Kara Dawn — both words, every time
One team, one standard
Small enough to know you. Serious enough to prove it.
Everyone on this page works to the same playbook — Protect, Empower, Support, and the WOW Standard. See how we work, or what clients say in our Google reviews.
- 4.8★Google rating · 31 reviews
- MSP of the YearKaseya/Datto, 2025
- Inc. 50002026 · No. 3,329
- Since 2012Tulsa-owned and Tulsa-run
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Meet us for real.
A Discovery Call is thirty minutes with the people on this page — your environment, your risks, and whether we’re the right fit. No pitch deck.