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Best Cybersecurity Companies in Largo, FL (2026)

207 cybersecurity companies ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Largo: Vine IT & Cybersecurity, IFR Score 64/100; 5.0★ from 53 Google reviews; open 7 days a week.

  2. 21

    Most-reviewed: Computers Repair Plus Electronics, 418 Google reviews at 5.0★, the most of 207 ranked; ranked #21.

Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank

207 Largo cybersecurity companies are ranked here by IFR Score, from nine published factors. 55 open Saturdays and 42 open Sundays, based on posted hours. The median Google rating is 5.0★ across 207 rated IT firms.

Top 10 cybersecurity companies in Largo at a glance

Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.

Top 10 cybersecurity companies in Largo at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Vine IT & Cybersecurity645.0★ (53)St. Petersburg, 10 mi awaySat · Sun · EveningsOverall
2AceHost Data Center624.8★ (24)Tampa, 20 mi awaySat · Sun · Evenings—
3Cyber Security Solutions614.7★ (12)Tampa, 14 mi awaySat · Sun · Evenings—
4Digital Hands604.8★ (12)Tampa, 17 mi awaySat · Sun · Evenings—
5Sterling Ideas Inc605.0★ (129)Clearwater, 8 mi awaySat · Sun · Evenings—
6Sixwatch605.0★ (47)Tampa, 19 mi away——
7U.S. Computer Corporation604.9★ (362)Clearwater, 4 mi awaySat—
8MOSTRO Cybersecurity & Cyber Liability Defense605.0★ (47)Tampa, 21 mi away——
9Tridium Technology Solutions, LLC595.0★ (29)Clearwater, 3 mi away——
10Abacode, Inc595.0★ (7)Tampa, 16 mi awaySat · Sun · Evenings—

The 207 best cybersecurity companies in Largo, ranked

Ordered by IFR Score, a 0–100 score from nine published factors. Paid placement never changes the order.

Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.

Scores below: based on 8 of 9 factors; recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Largo

    Based in St. Petersburg, 10 mi away

    64/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 53 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 53 Google reviews
    Hours
    Mon–Fri 8 AM–8 PM · Sat–Sun 8 AM–4 PM
    Address
    9887 4th St N Suite 303F, St. Petersburg, FL 33702
  2. Based in Tampa, 20 mi away

    62/100IFR Score

    Ranked #2 because of its Google rating and service focus: 4.8★ from 24 Google reviews, listed on Google as “Computer security service”.

    • 4.8★ from 24 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    412 E Madison St Ste 1010, Tampa, FL 33602
  3. Based in Tampa, 17 mi away

    60/100IFR Score

    Ranked #4 because of its Google rating and service focus: 4.8★ from 12 Google reviews, listed on Google as “Computer security service”.

    • 4.8★ from 12 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    4211 W Boy Scout Blvd, Tampa, FL 33607
  4. Based in Tampa, 19 mi away

    60/100IFR Score

    Ranked #6 because of its Google rating and service focus: 5.0★ from 47 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 47 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1646 W Snow Ave, Tampa, FL 33606
  5. Based in Tampa, 16 mi away

    59/100IFR Score

    Ranked #10 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    5411 Skycenter Dr Ste 100, Tampa, FL 33607
  6. Based in Tampa, 20 mi away

    59/100IFR Score

    Ranked #12 because of its Google rating and service focus: 4.9★ from 8 Google reviews, listed on Google as “Computer security service”.

    • 4.9★ from 8 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    655 N Franklin St #1000, Tampa, FL 33602
  7. Based in Tampa, 23 mi away

    59/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 42 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 42 Google reviews
    Hours
    Mon–Fri 9 AM–5:30 PM · Sat–Sun closed
    Address
    14906 Winding Creek Ct Ste 101-D, Tampa, FL 33613
  8. Based in St. Petersburg, 13 mi away

    59/100IFR Score

    Ranked #16 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 5 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    146 2nd St N #201, St. Petersburg, FL 33701
  9. Based in St. Petersburg, 10 mi away

    58/100IFR Score

    Ranked #17 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Sun 7 AM–9 PM
    Address
    9800 4th St N #200, St. Petersburg, FL 33702
  10. Based in Tampa, 18 mi away

    58/100IFR Score

    Ranked #18 because of its Google rating and review volume: 4.8★ from 132 Google reviews.

    • 4.8★ from 132 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    7904 Hopi Pl, Tampa, FL 33634
  11. Based in Palm Harbor, 13 mi away

    58/100IFR Score

    Ranked #19 because of its Google rating and review volume: 4.8★ from 112 Google reviews.

    • 4.8★ from 112 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    35095 US Hwy 19 N, Palm Harbor, FL 34684
  12. Based in St. Petersburg, 10 mi away

    58/100IFR Score

    Ranked #20 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 18 Google reviews
    Hours
    Mon–Fri 9 AM–8 PM · Sat–Sun closed
    Address
    5922 9th Ave N, St. Petersburg, FL 33710
  13. Based in Tampa, 21 mi away

    57/100IFR Score

    Ranked #23 because of its Google rating and service focus: 4.2★ from 44 Google reviews, listed on Google as “Computer security service”.

    • 4.2★ from 44 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1001 Water St Ste 1900, Tampa, FL 33602
  14. Based in Tampa, 31 mi away

    57/100IFR Score

    Ranked #24 because of its Google rating and service focus: 5.0★ from 25 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 25 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat–Sun closed
    Address
    19046 Bruce B Downs Blvd, Tampa, FL 33647

Cybersecurity companies ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in IFR Score order; each links to its profile. We publish the top 50 of 207 ranked cybersecurity companies here; the rest are on their profiles.

cybersecurity companies in Largo, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Sequentur | IT Support Company and Managed IT Services in Tampa, FL575.0★ (17)21 mi
27ēlevātus575.0★ (48)12 mi
28Concertium574.3★ (11)21 mi
29Sun Life Tech | Clearwater IT & Cybersecurity574.9★ (34)1 mi
30Entec Systems565.0★ (18)27 mi
31Bay Business Edge Inc564.6★ (11)6 mi
32XDuce Managed IT and Cybersecurity565.0★ (86)29 mi
33iVenture Solutions564.9★ (37)9 mi
34KeenPlex Technologies565.0★ (11)19 mi
35TeamLogic IT564.9★ (23)43 mi
36ByteSizeNet565.0★ (7)64 mi
37CyberTech Analytics565.0★ (7)64 mi
38TeamLogic IT564.7★ (13)20 mi
39Northern Technologies Group, Inc.564.7★ (14)24 mi
40M-QUAL555.0★ (6)4 mi
41TechSystems USA555.0★ (18)42 mi
42PCe Solutions- Managed IT555.0★ (9)17 mi
43DeleteMyInfo554.5★ (8)6 mi
44Paragon Cyber Solutions LLC554.9★ (11)20 mi
45Breakfree Technologies LLC.554.9★ (18)43 mi
46Insight Assurance554.3★ (11)20 mi
47Tampa PC Consultants554.6★ (88)20 mi
48MetroTech IT554.9★ (114)5 mi
49SecureNet MSP545.0★ (84)64 mi
50Digital Design Group, Inc.543.9★ (30)45 mi

Also serving Largo

20 more cybersecurity companies within 75 mi that we can't rank yet: too few reviews, or a service we couldn't confirm. Listed A to Z.

Unranked cybersecurity companies serving Largo
BusinessGoogle ratingDistance
Accu-TechIn Largo
Affordable Computer Solutions4.9★ (342)In Largo
Baroni's Computer ServicesIn Largo
Batey Technology Solutions5.0★ (17)In Largo
Belltech Computer Repair and Technology Services4.3★ (94)In Largo
Cyber ByteIn Largo
Donovan Cybersecurity LLCIn Largo
EZ Network Solutions4.5★ (36)In Largo
Global Digital Forensics1.0★ (2)8 mi
HumanLogicIn Largo
IT Architect ConsultingIn Largo
Pinellas Computers of Largo4.7★ (207)In Largo
ProofCyberIn Largo
Solaris Intelligence5.0★ (4)In Largo
TeamLogic ITIn Largo
TeamLogic IT5.0★ (2)6 mi
Tec Inquiries IncIn Largo
TechSave.Systems5.0★ (13)In Largo
ThreatTrack Security4.0★ (2)5 mi
VirtuStation5.0★ (2)In Largo

How we ranked Largo cybersecurity companies

We scored 207 Largo cybersecurity companies on nine factors, weighted as shown. An IT firm is ranked when its service is confirmed and it has 3 or more Google reviews or a claimed profile. An IT firm with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 9, 2026.

Paid placement never changes a rank or score. Sponsored businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

IFR Score factors and weights
FactorWeightComputed fromIn Largo data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Review volume15%Number of Google reviews, compared with the most-reviewed IT firm on the listMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday and 24/7 supportMeasured
Service focus15%How clearly the firm does this service (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The firm has claimed its IT Firms Ranked profile (free or paid earn the same)Measured
Partnered5%The firm links to IT Firms Ranked from its own website with our badge, checked periodicallyMeasured
Client reviews10%Verified client reviews collected by IT Firms Ranked: their rating and how many there areMeasured

How to choose a cybersecurity company

  1. Ask whether monitoring is staffed around the clock by the firm itself or by a partner.
  2. Ask for a sample assessment or penetration-test report with client details removed.
  3. Check experience with your industry’s rules (for example HIPAA, PCI DSS or CMMC).
  4. Ask what the firm does in the first hour of an incident, and whether that is in the contract.
  5. Ask for two or three references from clients of your size and industry, and call them.
  6. Get the scope, response times and price in writing before you sign, including how you leave and get your data back.

Questions to ask a cybersecurity company

  • Is your security monitoring staffed 24/7, and by whom?
  • Which frameworks do you assess against?
  • What do your reports include, and do you re-test after we fix the findings?
  • Do you handle incident response yourselves, and do you work with cyber insurers?
  • What access will you need to our systems, and how is it controlled and logged?
  • Which certifications do the people doing the work hold?

Terms explained

MSP (managed service provider)
A firm that runs a business’s IT for a recurring fee: monitoring, patching, help desk, backups and security tools.
Co-managed IT
An arrangement where an outside firm supports an in-house IT person or team, sharing tools and tasks.
Break-fix
IT support paid per incident or per hour, with no monthly agreement.
SLA (service-level agreement)
The contract terms for response and resolution times, uptime and support hours.
Help desk
The support line staff call or email for IT problems.
RMM
Remote monitoring and management software that lets an IT firm watch, patch and fix computers remotely.
vCIO
A virtual chief information officer: part-time IT strategy and budgeting from an outside firm.
MSSP
A managed security service provider: a firm that monitors and manages security tools around the clock.
EDR / MDR
Endpoint detection and response software, and the managed service of people watching its alerts (managed detection and response).
MFA
Multi-factor authentication: a second proof of identity, such as an app prompt, on top of a password.
Penetration test
An authorised, simulated attack on your systems to find weaknesses before criminals do.
SOC 2
An independent auditor’s report (AICPA standard) on a service provider’s security controls.

Cybersecurity companies in Largo: frequently asked questions

Who is the best cybersecurity company in Largo?

By IFR Score, the highest-ranked cybersecurity company in Largo, FL is Vine IT & Cybersecurity with an IFR Score of 64/100. It has 5.0★ from 53 Google reviews. It is open 7 days a week. AceHost Data Center (#2) and Cyber Security Solutions (#3) follow. We ranked 207 cybersecurity companies on nine factors, last updated November 9, 2026.

How many cybersecurity companies are there in Largo?

ITFirmsRanked ranks 207 cybersecurity companies serving Largo, FL. Another 20 within 75 mi are listed but not ranked yet. Counts are as of November 2026.

Which cybersecurity companies in Largo work on weekends?

55 of 207 ranked cybersecurity companies post Saturday hours and 42 post Sunday hours. The highest-ranked open Saturdays are Vine IT & Cybersecurity (#1), AceHost Data Center (#2) and Cyber Security Solutions (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Largo cybersecurity companies have?

The median Google rating among 207 rated cybersecurity companies in Largo is 5.0★, with a median of 16 reviews. Computers Repair Plus Electronics has the most, 418 reviews, and ranks #21. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ITFirmsRanked rank cybersecurity companies?

Each cybersecurity company gets a 0–100 IFR Score from nine published factors, led by reputation (25%), review volume (15%), service focus (15%) and recency (10%). An IT firm with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only IT firms with a confirmed service and 3 or more reviews, or a claimed profile, are ranked.

Do cybersecurity companies outside Largo count in this ranking?

Yes, if they are within 75 mi of the Largo city center, our service radius for cybersecurity companies. Each listing shows where the IT firm is based and how far away it is. Proximity is 5% of the IFR Score, so a nearby IT firm gets a small edge.

Can cybersecurity companies pay to rank higher on ITFirmsRanked?

No. The IFR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured IT firms may appear above the list, labelled Sponsored and showing their honest rank.

What does a cybersecurity company do?

Cybersecurity companies assess and protect a business’s systems and data: security monitoring, endpoint protection, penetration testing, compliance support and incident response.

How are cybersecurity companies in Largo ranked?

By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does cybersecurity, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.

Do we need a cybersecurity firm if we already have an IT provider?

Sometimes. Many IT providers include basic security tools; a security firm adds specialist work such as 24/7 monitoring, penetration tests, compliance audits and incident response. Ask your IT provider what they cover and where they would bring in a specialist.

What is the difference between a security assessment and a penetration test?

An assessment reviews your policies, settings and controls against a framework. A penetration test is an authorised, simulated attack that tries to exploit weaknesses. Both end with a written report and a list of fixes.

Can a cybersecurity firm help with compliance?

Many help organisations prepare for requirements such as HIPAA, PCI DSS, CMMC or SOC 2. They can advise and assess, but only an independent auditor issues a SOC 2 report, and compliance is ultimately your responsibility.

Update log for Largo

  1. November 2026: IFR Scores recalculated for 207 cybersecurity companies serving Largo.