30-day change: –– · No changes detected in the last 180 days.
National rank#7,570of 45,456 · top 17%
NH#32of 243 · top 14%
Portsmouth#5of 27 · top 19%
Google 5.0★ (3)Organic ~190/moSecurity headers FHosting CloudflareDomain 20 yrsNAICS 541511
MSP Signal ranks THE ATOM GROUP #7,570 of 45,456 IT service providers nationally. THE ATOM GROUP is an IT service provider in Portsmouth, NH, founded 2007, with 20 staff. It offers Software Modernization, Mobile Development, Web Development.
Source: MSP Signal, THE ATOM GROUP company profile, Oct 6, 2026, https://mspsignal.com/msp/the-atom-group
01
Score breakdown
5 pillars · weighted · 59.4 / 100
Reputation30%
75/100
Lifted by more Google reviews and a higher rating.
Presence25%
75/100
Lifted by a stronger website and public profiles.
Credibility20%
53/100
Lifted by a fuller record: services, credentials, pricing.
rivals by score band · gap to nearest higher / lower · counts, locked rows are previews, not published facts
02
Signal feed
no events returned
No changes detected in the last 180 days.
Signal planSignal plan · full rival watch: every change at every nearby rival.See the Signal plan
03
Reputation
Google · 3 reviews
5.0
Listing: The ATOM Group · Computer security service · Maps ↗review velocity: 0 in the last 365 days
Distribution · listing sample of 3
01★
02★
03★
04★
35★
4–5★ 3 · 100.0% 3★ 0 · 0.0% 1–2★ 0 · 0.0%, not the same population as the 3 reviews
What reviewers mention
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Listings
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Sentiment––
HoursMon–Fri 9 AM to 6 PM · Sat–Sun closed
Other sources · BBB: –– · Facebook rating: ––
From their Google profile
ATOM helps leaders build a world they can trust. We are a full service cybersecurity and custom software development (website and application) firm supporting over 500+ entities in NH and the largest incident response firm in New Hampshire.
“Incident Response Playbooks: Specific, rehearsed plans for ransomware, physical sabotage, or natural disasters.”
up to three quotations per category
10
Frequently asked questions
reuses public facts · FAQ schema
Where is THE ATOM GROUP located?
1000 Market St, Portsmouth, NH 03801.
How many people work at THE ATOM GROUP?
THE ATOM GROUP has 20 staff.
What services does THE ATOM GROUP offer?
Software Modernization, Mobile Development, Web Development, Cyber Incident Response, Penetration Testing, Virtual Ciso, Breach Counsel, Cybersecurity, User Experience.
How does THE ATOM GROUP rank among IT providers in Portsmouth?
#5 of 27 observed providers in Portsmouth; #7,570 of 45,456 nationally.
Is THE ATOM GROUP claimed on MSP Signal?
Not claimed.
Claimed · not shown (unclaimed) · Verified data · conditional on field sources · Registered entity · conditional on legal-entity nameLast observed Oct 6, 2026 · Citation: THE ATOM GROUP company profile · https://mspsignal.com/msp/the-atom-group
