Company lists · Data refreshed September 2026

Top 22 Cybersecurity testing firms based in Tampa, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 47 companies tracked

RevenueBase identified 47 cybersecurity testing firms headquartered in Tampa, United States as of September 2026 and tracks 313 professional contacts across them, including 132 with verified work emails. Across the United States, New York is the largest hub for this category (113 companies); Tampa has 47.

This list covers cybersecurity testing firms 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 28, 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 28, 2026 86% judged on-target in blind review

47Companies

313Contacts tracked

132Verified emails

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The 22 largest cybersecurity testing firms based in Tampa, United States

Ranked by team size

Top 22 of 47 cybersecurity testing firms based in Tampa, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity testing firms: 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	Abacode, A Thrive Company	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 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 28, 2026
2	Mile2 Cybersecurity Institute	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial 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 28, 2026
3	Securance Consulting	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 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 28, 2026
4	Navisec	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 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 28, 2026
5	Castlegarde INC	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 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 28, 2026
6	Bestdefense, INC	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial 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 28, 2026
7	Open-Sec	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Ethical hacking : Vulnerability Assessment, Penetration Testing, Source Code Security Testing, Apps Security Testing, ATM and PoS pentesting, transactional switches testing…” Source: RevenueBase Database · checked Sep 28, 2026
8	Threatmate	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	10 contacts →
	Partial evidence “ThreatMate delivers continuous, AI-powered penetration testing and vulnerability management that shows MSPs what’s actually exploitable across every client environment not just…” Source: RevenueBase Database · checked Sep 28, 2026
9	Perseus Information Security Consulting	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Partial evidence “Perseus Information Security Consulting is a leader in delivering tailored cybersecurity solutions across Automotive (TISAX), Financial Services (SWIFT CSP Assessments), and…” Source: RevenueBase Database · checked Sep 28, 2026
10	Reliaquest Threat Research	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	501-1,000	8 contacts →
	Indirect evidence “Digital Shadows, a ReliaQuest company, minimizes digital risk by identifying unwanted exposure and protecting against external threats.” Source: RevenueBase Database · checked Sep 28, 2026
11	DG Technology Consulting	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “DG Technology helps organizations reduce risk and stay compliant in a world where threats, tools, and budgets change fast.” Source: RevenueBase Database · checked Sep 28, 2026
12	Velero	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “Velero is a premier cybersecurity and compliance consulting firm dedicated to providing comprehensive solutions that empower businesses to secure their digital assets and achieve…” Source: RevenueBase Database · checked Sep 28, 2026
13	Launch GIG Your Search Starts Here	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Launch Gig is a Cybersecurity company serving Cyber security professionals.” Source: RevenueBase Database · checked Sep 28, 2026
14	Goldsky Cyber Security	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “GoldSky is a full service cyber security solutions firm that is privately owned and operated out of Tampa, Florida with resources in Orlando, Denver, Nashville, Boston, Washington…” Source: RevenueBase Database · checked Sep 28, 2026
15	Simplifycyber	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Indirect evidence “At SimplifyCyber, we specialize in operational and compliance risk management, offering customized services to businesses and organizations.” Source: RevenueBase Database · checked Sep 28, 2026
16	Triad Cyber	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Indirect evidence “Experienced NIST Cyber Security experts providing -Assessment Services: Remediations & Assessments including FISMA, FedRAMP, StateRAMP, CMMC- Professional Services: vCISO…” Source: RevenueBase Database · checked Sep 28, 2026
17	Trifident	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Our services are delivered by professionals with real-world experience spanning US Government, Fortune 200, and critical infrastructure cyber operations.” Source: RevenueBase Database · checked Sep 28, 2026
18	Cybert3	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Partial evidence “CyberT3 is a professional search and placement firm specializing in filling cybersecurity & high-tech positions.” Source: RevenueBase Database · checked Sep 28, 2026
19	Cyqual Cybersecurity	Partial evidence	Tampa, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Cyqual provides cybersecurity advisory and engineering services.” Source: RevenueBase Database · checked Sep 28, 2026
20	Arruda Group	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “The ARRUDA Group (AG) was founded by a team of senior executives who have years of experience at all levels of federal law enforcement, the intelligence community and the military.” Source: RevenueBase Database · checked Sep 28, 2026
21	CSG Cyber Veteran Owned	Partial evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Cybersecurity services and products for all industries.” Source: RevenueBase Database · checked Sep 28, 2026
22	Shorely Cyber	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “We believe in simplifying the complex.” Source: RevenueBase Database · checked Sep 28, 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 testing firms. 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 testing firms.
Partial evidence: Its own public description names part of cybersecurity testing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity testing firms. 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 22 of 47 cybersecurity testing firms based in Tampa, United States

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Cybersecurity testing firms based in Tampa, United States at a glance

As of Sep 28, 2026

42.2%Verified-email coverage

6.7Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 47 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 testing firms, 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 testing firms”. 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 testing firms), 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 testing firms, 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, 132 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 28, 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 testing firms 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 testing firms, 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 testing firms are there based in Tampa, United States?

RevenueBase identified 47 cybersecurity testing firms 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?

Abacode, A Thrive Company, headquartered in Tampa, tops this list with the largest team on record.

Which city in the United States has the most cybersecurity testing firms?

New York leads the United States with 113 headquartered companies, followed by San Francisco (74) and Austin (61). Tampa has 47.

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 132 verified decision-maker contacts tracked across these 47 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 28, 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.