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Best Cybersecurity Companies in Greenville, TX (2026)

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

The short answer

  1. 1

    Best overall in Greenville: Infonaligy Partners, IFR Score 61/100; 5.0★ from 132 Google reviews.

  2. 14

    Most-reviewed: Rodi Computer Service, 531 Google reviews at 4.9★, the most of 276 ranked; ranked #14.

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

276 Greenville cybersecurity companies are ranked here by IFR Score, from nine published factors. 100 open Saturdays and 76 open Sundays, based on posted hours. The median Google rating is 5.0★ across 276 rated IT firms.

Most of this list also appears on the Cybersecurity companies in Arlington ranking. See Cybersecurity companies in Arlington

Top 10 cybersecurity companies in Greenville at a glance

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

Top 10 cybersecurity companies in Greenville at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Infonaligy Partners615.0★ (132)Allen, 33 mi away—Overall
2GXA615.0★ (27)Frisco, 41 mi awaySat · Sun · Evenings—
3LG Networks, Inc614.6★ (35)Dallas, 39 mi awaySat · Sun · Evenings—
4Texas Data and VoIP604.8★ (17)McKinney, 31 mi awaySat · Sun · Evenings—
5Aspire Cyber605.0★ (51)Dallas, 40 mi awaySat · Evenings—
6Dr Backup, a Hosvara Company605.0★ (125)Irving, 52 mi away——
7Network Elites595.0★ (16)Dallas, 43 mi awaySat · Sun · Evenings—
8Baxter Clewis Cybersecurity594.3★ (238)Dallas, 47 mi away——
9NCC Data584.6★ (21)Irving, 54 mi awaySat · Sun · Evenings—
10CUSTOM Information Services584.9★ (19)Arlington, 61 mi awaySat · Sun · Evenings—

The 276 best cybersecurity companies in Greenville, 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 Greenville

    #1 Infonaligy Partners

    Based in Allen, 33 mi away

    61/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 132 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 132 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    950 W Bethany Dr #650, Allen, TX 75013
    View profile for Infonaligy Partners(800) 985-1365

  2. #2 GXA

    Based in Frisco, 41 mi away

    61/100IFR Score

    Ranked #2 because of its Google rating and service focus: 5.0★ from 27 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 27 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    7460 Warren Pkwy, Frisco, TX 75034
    View profile for GXA(972) 630-3323

  3. #3 LG Networks, Inc

    Based in Dallas, 39 mi away

    61/100IFR Score

    Ranked #3 because of its Google rating and service focus: 4.6★ from 35 Google reviews, listed on Google as “Computer security service”.

    • 4.6★ from 35 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    9441 Lyndon B Johnson Fwy Ste 250, Dallas, TX 75243
    View profile for LG Networks, Inc(972) 528-6546

  4. #4 Texas Data and VoIP

    Based in McKinney, 31 mi away

    60/100IFR Score

    Ranked #4 because of its Google rating and service focus: 4.8★ from 17 Google reviews, listed on Google as “Computer security service”.

    • 4.8★ from 17 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    2150 Central Expy #200, McKinney, TX 75070
    View profile for Texas Data and VoIP(972) 924-5010

  5. #5 Aspire Cyber

    Based in Dallas, 40 mi away

    60/100IFR Score

    Ranked #5 because of its Google rating and service focus: 5.0★ from 51 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 51 Google reviews
    Hours
    Mon–Sat 7 AM–7 PM · Sun closed
    Address
    9330 Lyndon B Johnson Fwy #900, Dallas, TX 75243
    View profile for Aspire Cyber(214) 791-6999

  7. #7 Network Elites

    Based in Dallas, 43 mi away

    59/100IFR Score

    Ranked #7 because of its Google rating and service focus: 5.0★ from 16 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 16 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    8080 N Central Expy #1700, Dallas, TX 75206
    View profile for Network Elites(972) 999-8390

  9. #9 NCC Data

    Based in Irving, 54 mi away

    58/100IFR Score

    Ranked #9 because of its Google rating and service focus: 4.6★ from 21 Google reviews, listed on Google as “Computer security service”.

    • 4.6★ from 21 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    4320 N Belt Line Rd First Floor, Suite 315, Irving, TX 75038
    View profile for NCC Data(682) 710-0210

  11. #11 Eagle Scout Security

    Based in Dallas, 40 mi away

    58/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 10 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 10 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    8330 Lyndon B Johnson Fwy, Dallas, TX 75243
    View profile for Eagle Scout Security

  12. #12 DKBinnovative

    Based in Irving, 52 mi away

    58/100IFR Score

    Ranked #12 because of its Google rating and service focus: 4.6★ from 16 Google reviews, listed on Google as “Computer security service”.

    • 4.6★ from 16 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    7301 State Hwy 161 Ste 148, Irving, TX 75039
    View profile for DKBinnovative(469) 208-3534

  14. #14 Rodi Computer Service

    Based in Allen, 32 mi away

    58/100IFR Score

    Ranked #14 because of its Google rating and review volume: 4.9★ from 531 Google reviews, the most in Greenville.

    • 4.9★ from 531 Google reviews
    Hours
    Mon–Fri 12 PM–6 PM · Sat 12 PM–4 PM · Sun closed
    Address
    600 E Main St Ste e, Allen, TX 75002
    View profile for Rodi Computer Service(972) 649-6666

  16. #16 Buchanan Technologies

    Based in Grapevine, 57 mi away

    57/100IFR Score

    Ranked #16 because of its Google rating and service focus: 5.0★ from 12 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 12 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1026 Texan Trail Suite 200, Grapevine, TX 76051
    View profile for Buchanan Technologies(972) 869-3966

  17. #17 iFixGeek - Computer Service MacBook PC Laptop iPhone iPad Repair Data Recovery CellPhone Richardson Dallas Plano Texas

    Based in Richardson, 38 mi away

    57/100IFR Score

    Ranked #17 because of its Google rating and review volume: 4.6★ from 505 Google reviews.

    • 4.6★ from 505 Google reviews
    Hours
    Mon–Fri 9 AM–6 PM · Sat 10 AM–6 PM · Sun 10:30 AM–4:30 PM
    Address
    115 S Central Expy, Richardson, TX 75080
    View profile for iFixGeek - Computer Service MacBook PC Laptop iPhone iPad Repair Data Recovery CellPhone Richardson Dallas Plano Texas(972) 866-4573

  18. #18 GXA

    Based in Richardson, 36 mi away

    57/100IFR Score

    Ranked #18 because of its Google rating and review volume: 4.9★ from 135 Google reviews.

    • 4.9★ from 135 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    269 W Renner Rd Ste 100, Richardson, TX 75080
    View profile for GXA(972) 630-3323

  20. #20 DKBinnovative

    Based in Frisco, 42 mi away

    57/100IFR Score

    Ranked #20 because of its Google rating and review volume: 4.9★ from 153 Google reviews.

    • 4.9★ from 153 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1701 Legacy Dr #1450, Frisco, TX 75034
    View profile for DKBinnovative(214) 981-8569

  21. #21 Trend Micro, Inc

    Based in Irving, 52 mi away

    57/100IFR Score

    Ranked #21 because of its Google rating and service focus: 4.6★ from 67 Google reviews, listed on Google as “Computer security service”.

    • 4.6★ from 67 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    225 E John W Carpenter Fwy #1500, Irving, TX 75062
    View profile for Trend Micro, Inc(888) 762-8736

  23. #23 ATSecurity

    Based in Carrollton, 44 mi away

    57/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 10 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 10 Google reviews
    Hours
    Mon–Sun 7 AM–7 PM
    Address
    4309 Reeder Dr, Carrollton, TX 75010
    View profile for ATSecurity(214) 470-6342

  25. #25 Prototype IT

    Based in Lewisville, 51 mi away

    56/100IFR Score

    Ranked #25 because of its Google rating and review volume: 4.9★ from 163 Google reviews.

    • 4.9★ from 163 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    401 E Corporate Dr Ste 220, Lewisville, TX 75057
    View profile for Prototype IT(817) 631-5844

How we ranked Greenville cybersecurity companies

We scored 276 Greenville 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 Greenville 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 Greenville: frequently asked questions

Who is the best cybersecurity company in Greenville?

By IFR Score, the highest-ranked cybersecurity company in Greenville, TX is Infonaligy Partners with an IFR Score of 61/100. It has 5.0★ from 132 Google reviews. GXA (#2) and LG Networks, Inc (#3) follow. We ranked 276 cybersecurity companies on nine factors, last updated November 9, 2026.

Which cybersecurity companies in Greenville work on weekends?

100 of 276 ranked cybersecurity companies post Saturday hours and 76 post Sunday hours. The highest-ranked open Saturdays are GXA (#2), LG Networks, Inc (#3) and Texas Data and VoIP (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Greenville cybersecurity companies have?

The median Google rating among 276 rated cybersecurity companies in Greenville is 5.0★, with a median of 13 reviews. Rodi Computer Service has the most, 531 reviews, and ranks #14. 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 Greenville count in this ranking?

Yes, if they are within 75 mi of the Greenville 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 Greenville 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 Greenville

  1. November 2026: IFR Scores recalculated for 276 cybersecurity companies serving Greenville.
  2. November 2026: 4 duplicate listings merged.

More cybersecurity companies and Greenville pages