Company lists · Data refreshed September 2026

Top 25 Cybersecurity businesses based in Tampa, United States

Name: Cybersecurity businesses based in Tampa, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 145 companies tracked

RevenueBase identified 145 cybersecurity businesses headquartered in Tampa, United States as of September 2026 and tracks 3,989 professional contacts across them, including 2,310 with verified work emails. New York is the largest hub.

This list covers cybersecurity businesses 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

145Companies

3,989Contacts tracked

2,310Verified emails

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The 25 largest cybersecurity businesses based in Tampa, United States

Ranked by team size

Top 25 of 145 cybersecurity businesses based in Tampa, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity businesses: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Reliaquest	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,285 contacts →
	Indirect evidence “ReliaQuest exists to Make Security Possible.” Source: RevenueBase Database · checked Sep 21, 2026
2	Opswat	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	501-1,000	1,119 contacts →
	Indirect evidence “OPSWAT protects critical infrastructure.” Source: RevenueBase Database · checked Sep 21, 2026
3	NTG	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	236 contacts →
	Indirect evidence “NTG is where excellence meets innovation.” Source: RevenueBase Database · checked Sep 21, 2026
4	Cyberfox	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	109 contacts →
	Strong evidence “CyberFOX is a global cybersecurity solutions provider headquartered in Tampa, Florida, specializing in privileged access management (PAM), password management, and DNS filtering…” Source: RevenueBase Database · checked Sep 21, 2026
5	Digital Hands	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	73 contacts →
	Indirect evidence “Digital Hands is a managed service provider built for the real world.” Source: RevenueBase Database · checked Sep 21, 2026
6	Focal Point Data Risk A CDW Company	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	201-500	66 contacts →
	Indirect evidence “Focal Point Data Risk is now a CDW company!” Source: RevenueBase Database · checked Sep 21, 2026
7	Cyberglobal	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	64 contacts →
	Strong evidence “CyberGlobal is the first and only cybersecurity franchise in the world.” Source: RevenueBase Database · checked Sep 21, 2026
8	Abacode, A Thrive Company	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	62 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
9	Cyber Florida At USF The Florida Center For Cybersecurity	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	61 contacts →
	Strong evidence “The Florida Center for Cybersecurity, also known as Cyber Florida, was established by the Florida Legislature in 2014 to help position Florida as a national leader in…” Source: RevenueBase Database · checked Sep 21, 2026
10	Venatôre	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	57 contacts →
	Indirect evidence “Venatôre LLC provides secure, integrated, and mission-ready technology solutions to U.S.” Source: RevenueBase Database · checked Sep 21, 2026
11	Concertium	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	55 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 21, 2026
12	Ridge IT Cyber	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	39 contacts →
	Indirect evidence “As America's #1 ranked MSSP on the Inc.” Source: RevenueBase Database · checked Sep 21, 2026
13	Tmpc INC	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	31 contacts →
	Strong evidence “Minority and veteran owned, TMPC is a small business tasked with top-level cybersecurity for numerous agencies in the federal government.” Source: RevenueBase Database · checked Sep 21, 2026
14	Rita Technology Services	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	51-200	31 contacts →
	Indirect evidence “Tampa's #1 IT Recruiting Firm 🥇 Executive Search \| Strategic Recruiting \| IT Staffing Established in 1972, Rita Technology Services is a leading Information Technology & Cyber…” Source: RevenueBase Database · checked Sep 21, 2026
15	Mile2 Cybersecurity Institute	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	30 contacts →
	Strong evidence “Mile2® is a global leader in cybersecurity training, certification, and consulting, dedicated to equipping individuals, government agencies, and organizations with the skills to…” Source: RevenueBase Database · checked Sep 21, 2026
16	BIG SUR Technologies	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	28 contacts →
	Strong evidence “Big Sur Technologies provides managed IT services, cybersecurity, and private cloud solutions for small and mid-sized businesses that need reliable, secure, and well-aligned…” Source: RevenueBase Database · checked Sep 21, 2026
17	Cyber Security Solutions INC	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	26 contacts →
	Strong evidence “Cyber Security Solutions Inc, founded in 2015 by veterans and based in Florida, delivers managed cybersecurity services including penetration testing, vulnerability scanning…” Source: RevenueBase Database · checked Sep 21, 2026
18	CIO Technology Solutions	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	21 contacts →
	Strong evidence “Founded in 2010, CIO Technology Solutions provides Managed IT Services, co-managed IT services, and cybersecurity for businesses that want reliable systems, fast support, and…” Source: RevenueBase Database · checked Sep 21, 2026
19	Ēlevātus	Strong evidence	Tampa, United StatesHQ checked Sep 21, 2026	11-50	21 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 21, 2026
20	Securance Consulting	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
21	Symmetric IT Group	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “At Symmetric we make it our goal to provide You reliable technology that works for your business, period!” Source: RevenueBase Database · checked Sep 21, 2026
22	Navisec	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026
23	Castlegarde INC	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “CASTLEGARDE INC is a company based out of 4911 S WEST SHORE BLVD, TAMPA, Florida, United States.” Source: RevenueBase Database · checked Sep 21, 2026
24	Bestdefense, INC	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “Continuous Security for Modern SaaS \| Automated Testing \| Real-Time Validation BestDefense.io empowers DevOps and engineering teams to build, ship, and scale with confidence.” Source: RevenueBase Database · checked Sep 21, 2026
25	Paragon Cyber Solutions 8a, Edwosb, Sdvosb, Cmmc-C3pao	Strong evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	11-50	13 contacts →
	Strong evidence “An 8(a), EDWOSB, SDVOSB, and CMMC-C3PAO firm specializing in cybersecurity, information technology, and workforce development for federal agencies.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity businesses. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity businesses.
Partial evidence: Its own public description names part of cybersecurity businesses, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity businesses. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 145 cybersecurity businesses based in Tampa, United States

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Cybersecurity businesses based in Tampa, United States at a glance

As of Sep 21, 2026

57.9%Verified-email coverage

27.5Average contacts per company

11-50Median size (employees)

277.9%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Tampa, so it is reported there. Company counts and contact totals on this page are exact for Tampa, over 145 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 cybersecurity businesses, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “cybersecurity businesses”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity businesses), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity businesses, 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 its RevenueBase Smart Search 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, 2,310 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 21, 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.

Cybersecurity businesses by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity businesses, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity businesses are there based in Tampa, United States?

RevenueBase identified 145 cybersecurity businesses 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 cybersecurity businesses?

New York leads with 403 headquartered companies, followed by Austin (207) and Washington (203).

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 2,310 verified decision-maker contacts tracked across these 145 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 21, 2026.

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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 Smart Search, 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.