Company lists · Data refreshed September 2026
Top 25 Managed security service providers based in Tampa, United States
RevenueBase identified 94 managed security service providers headquartered in Tampa, United States as of September 2026 and tracks 2,544 professional contacts across them, including 1,451 with verified work emails. New York is the largest hub.
This list covers managed security service providers headquartered in Tampa, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest managed security service providers based in Tampa, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,285 | ||||
“ReliaQuest exists to Make Security Possible.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 236 | ||||
“NTG is where excellence meets innovation.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 202 | ||||
“As a Managed Service Provider recently voted "10 Most Promising Companies of 2023", Data-Tech has been helping business organizations succeed and grow through world class…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 73 | ||||
“Digital Hands is a managed service provider built for the real world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 66 | ||||
“Focal Point Data Risk is now a CDW company!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 64 | ||||
“CyberGlobal is the first and only cybersecurity franchise in the world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 62 | ||||
“Abacode joined forces with Thrive, learn more here: https://thrivenextgen.com/thrive-acquires-grc-focused-abacode/ Founded in 2014, Abacode has redefined industry standards by…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 55 | ||||
“Concertium is a complete cybersecurity partner equipped with the expertise and services to deliver end-to-end visibility and protection from evolving cyber threats.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 45 | ||||
“IT Authorities, a WidePoint company, is a Managed Service Provider (MSP) and a Managed Security Services Provider (MSSP) headquartered in Tampa, Florida.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Ridge IT CyberIndirect evidence | 39 | |||
“As America's #1 ranked MSSP on the Inc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 37 | ||||
“ConnectOn is a leading Managed Service, Security Service Provider, and Ransomware Remediation Company committed to helping companies around the globe maintain peak business…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Tmpc INCIndirect evidence | 31 | |||
“Minority and veteran owned, TMPC is a small business tasked with top-level cybersecurity for numerous agencies in the federal government.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 21 | ||||
“Elevatus IT: Your Trusted Partner in Cybersecurity and IT Support At Elevatus IT, we specialize in providing top-tier cybersecurity and IT support services to doctors and lawyers…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | Securance ConsultingPartial evidence | 21 | |||
“For 25 years, Securance Consulting has been the firm that security, compliance, and IT risk leaders call when the work is too important to hand off to a junior team.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | NavisecPartial evidence | 17 | |||
“NaviSec empowers clients to obtain a higher level of IT security with uncommon clarity, flexibility, and confidence in an the ever-changing cyber security landscape through a…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 | ||||
“CASTLEGARDE INC is a company based out of 4911 S WEST SHORE BLVD, TAMPA, Florida, United States.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | Paragon Cyber Solutions 8a, Edwosb, Sdvosb, Cmmc-C3paoIndirect evidence | 13 | |||
“An 8(a), EDWOSB, SDVOSB, and CMMC-C3PAO firm specializing in cybersecurity, information technology, and workforce development for federal agencies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 | ||||
“Aerobyte's mission is to remove the Wild Wild West from the World Wide Web.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | Roebuck TechnologiesPartial evidence | 9 | |||
“As an innovative managed services provider and value-added reseller, Roebuck Technologies offers a flexible monitoring platform customized for the needs of each client.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Zymphony Technology SolutionsPartial evidence | 9 | |||
“Founded in 2003, Zymphony Technology Solutions, is a premier provider that helps companies more efficiently manage and protect their IT infrastructure by providing a wide range of…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 | ||||
“For more than two decades Diversicom has empowered growth-focused businesses to become more efficient, productive and ultimately profitable.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 | ||||
“Perseus Information Security Consulting is a leader in delivering tailored cybersecurity solutions across Automotive (TISAX), Financial Services (SWIFT CSP Assessments), and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 | ||||
“Ready to Achieve Next-Level Performance?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 | ||||
“DG Technology helps organizations reduce risk and stay compliant in a world where threats, tools, and budgets change fast.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 | ||||
“Ideal Technologies, LLC is a premier provider of managed IT, cloud, and cybersecurity services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 94 managed security service providers based in Tampa, United States
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Managed security service providers based in Tampa, United States at a glance
As of Sep 5, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Tampa, over 94 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among managed security service providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Tampa, United States whose own description of what they do matches “managed security service providers”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among managed security service providers, and records with no verified work email. Companies headquartered outside Tampa are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,451 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Managed security service providers by metro in the United States
- Managed security service providers in New York200
- Managed security service providers in Houston120
- Managed security service providers in Austin117
- Managed security service providers in Atlanta114
- Managed security service providers in Washington107
- Managed security service providers in Miami106
- Managed security service providers in Chicago100
- Managed security service providers in Dallas100
- Managed security service providers in Tampa94
- Managed security service providers in San Francisco86
- Managed security service providers in Charlotte61
- Managed security service providers in Los Angeles60
- Managed security service providers in Columbia56
- Managed security service providers in Arlington54
- Managed security service providers in San Diego53
- Managed security service providers in Denver52
- Managed security service providers in Orlando52
- Managed security service providers in Boston51
- Managed security service providers in Las Vegas51
- Managed security service providers in San Antonio48
- Managed security service providers in Phoenix47
- Managed security service providers in Seattle39
- Managed security service providers in Reston38
- Managed security service providers in Wilmington38
- Managed security service providers in Alexandria37
- Managed security service providers in Irvine36
- Managed security service providers in Mclean36
- Managed security service providers in Sheridan36
- Managed security service providers in Fairfax34
- Managed security service providers in Raleigh33
- Managed security service providers in Huntsville32
- Managed security service providers in Portland32
- Managed security service providers in San Jose31
- Managed security service providers in Baltimore30
- Managed security service providers in Pittsburgh30
- Managed security service providers in Scottsdale30
- Managed security service providers in Plano29
- Managed security service providers in Fort Lauderdale28
- Managed security service providers in Colorado Springs27
- Managed security service providers in Ashburn26
- Managed security service providers in Dover26
- Managed security service providers in Richmond25
Frequently asked
How many managed security service providers are there based in Tampa, United States?
RevenueBase identified 94 managed security service providers headquartered in Tampa, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Reliaquest, headquartered in Tampa, tops this list with the largest team on record.
Which city has the most managed security service providers?
New York leads with 200 headquartered companies, followed by Houston (120) and Austin (117).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,451 verified decision-maker contacts tracked across these 94 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.
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Managed security service providers by geography
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- Managed security service providers based in Brazil
- Managed security service providers based in Germany
- Managed security service providers based in Spain
- Managed security service providers based in the Netherlands
- Managed security service providers based in Italy
- Managed security service providers based in South Africa
- Managed security service providers based in Mexico
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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