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Best Cybersecurity Companies in Terrell, TX (2026)

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

The short answer

  1. 1

    Best overall in Terrell: LG Networks, Inc, IFR Score 61/100; 4.6★ from 35 Google reviews; open 7 days a week.

  2. 22

    Most-reviewed: Rodi Computer Service, 531 Google reviews at 4.9★, the most of 297 ranked; ranked #22.

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

297 Terrell cybersecurity companies are ranked here by IFR Score, from nine published factors. 108 open Saturdays and 83 open Sundays, based on posted hours. The median Google rating is 5.0★ across 297 rated IT firms.

Top 10 cybersecurity companies in Terrell at a glance

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

Top 10 cybersecurity companies in Terrell at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1LG Networks, Inc614.6★ (35)Dallas, 29 mi awaySat · Sun · EveningsOverall
2Infonaligy Partners615.0★ (132)Allen, 34 mi away——
3GXA615.0★ (27)Frisco, 41 mi awaySat · Sun · Evenings—
4Dr Backup, a Hosvara Company615.0★ (125)Irving, 41 mi away——
5Aspire Cyber615.0★ (51)Dallas, 30 mi awaySat · Evenings—
6Network Elites605.0★ (16)Dallas, 30 mi awaySat · Sun · Evenings—
7Baxter Clewis Cybersecurity604.3★ (238)Dallas, 31 mi away——
8Texas Data and VoIP594.8★ (17)McKinney, 37 mi awaySat · Sun · Evenings—
9CUSTOM Information Services594.9★ (19)Arlington, 46 mi awaySat · Sun · Evenings—
10NCC Data594.6★ (21)Irving, 43 mi awaySat · Sun · Evenings—

The 297 best cybersecurity companies in Terrell, 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.

  1. Ranked #1 in Terrell

    Based in Dallas, 29 mi away

    61/100IFR Score

    Ranked #1 because of its Google rating and service focus: 4.6★ from 35 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.6★ from 35 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    9441 Lyndon B Johnson Fwy Ste 250, Dallas, TX 75243
  2. Based in Allen, 34 mi away

    61/100IFR Score

    Ranked #2 because of its Google rating and service focus: 5.0★ from 132 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 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
  3. #3 GXA

    Based in Frisco, 41 mi away

    61/100IFR Score

    Ranked #3 because of its Google rating and service focus: 5.0★ from 27 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 27 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    7460 Warren Pkwy, Frisco, TX 75034
  4. Based in Irving, 41 mi away

    61/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 125 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 125 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    7301 State Hwy 161 Ste 148, Irving, TX 75039
  5. Based in Dallas, 30 mi away

    61/100IFR Score

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

    Based on 8 of 9 factors; recency not yet collected.

    • 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
  6. Based in Dallas, 30 mi away

    60/100IFR Score

    Ranked #6 because of its Google rating and service focus: 5.0★ from 16 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 16 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    8080 N Central Expy #1700, Dallas, TX 75206
  7. Based in Dallas, 31 mi away

    60/100IFR Score

    Ranked #7 because of its Google rating and service focus: 4.3★ from 238 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.3★ from 238 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    325 North St. Paul Street Ste 3100, Dallas, TX 75201
  8. Based in McKinney, 37 mi away

    59/100IFR Score

    Ranked #8 because of its Google rating and service focus: 4.8★ from 17 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.8★ from 17 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    2150 Central Expy #200, McKinney, TX 75070
  9. Based in Arlington, 46 mi away

    59/100IFR Score

    Ranked #9 because of its Google rating and service focus: 4.9★ from 19 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.9★ from 19 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1201 N Watson Rd Ste 110, Arlington, TX 76006
  10. Based in Irving, 43 mi away

    59/100IFR Score

    Ranked #10 because of its Google rating and service focus: 4.6★ from 21 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 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
  11. Based in Dallas, 31 mi away

    59/100IFR Score

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

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 10 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    8330 Lyndon B Johnson Fwy, Dallas, TX 75243
  12. Based in Irving, 41 mi away

    59/100IFR Score

    Ranked #13 because of its Google rating and service focus: 4.6★ from 16 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.6★ from 16 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    7301 State Hwy 161 Ste 148, Irving, TX 75039
  13. Based in Grapevine, 48 mi away

    58/100IFR Score

    Ranked #15 because of its Google rating and service focus: 5.0★ from 12 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 12 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1026 Texan Trail Suite 200, Grapevine, TX 76051
  14. 58/100IFR Score

    Ranked #16 because of its Google rating and review volume: 4.6★ from 505 Google reviews.

    Based on 8 of 9 factors; recency not yet collected.

    • 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
  15. Based in Dallas, 30 mi away

    58/100IFR Score

    Ranked #17 because of its Google rating and service focus: 5.0★ from 34 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 34 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    4514 Cole Ave Suite 600, Dallas, TX 75205
  16. Based in Irving, 40 mi away

    58/100IFR Score

    Ranked #18 because of its Google rating and service focus: 4.6★ from 67 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 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
  17. Based in Dallas, 31 mi away

    58/100IFR Score

    Ranked #19 because of its Google rating and service focus: 5.0★ from 35 Google reviews, listed on Google as “Computer security service”.

    Based on 8 of 9 factors; recency not yet collected.

    • 5.0★ from 35 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    8330 Lyndon B Johnson Fwy #180, Dallas, TX 75243
  18. Based in Dallas, 31 mi away

    58/100IFR Score

    Ranked #21 because of its Google rating and review volume: 4.9★ from 142 Google reviews.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.9★ from 142 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1999 Bryan St #900, Dallas, TX 75201
  19. Based in Allen, 34 mi away

    57/100IFR Score

    Ranked #22 because of its Google rating and review volume: 4.9★ from 531 Google reviews, the most in Terrell.

    Based on 8 of 9 factors; recency not yet collected.

    • 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
  20. #23 GXA

    Based in Richardson, 31 mi away

    57/100IFR Score

    Ranked #23 because of its Google rating and review volume: 4.9★ from 135 Google reviews.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.9★ from 135 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    269 W Renner Rd Ste 100, Richardson, TX 75080
  21. Based in Frisco, 41 mi away

    57/100IFR Score

    Ranked #25 because of its Google rating and review volume: 4.9★ from 153 Google reviews.

    Based on 8 of 9 factors; recency not yet collected.

    • 4.9★ from 153 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1701 Legacy Dr #1450, Frisco, TX 75034

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 297 ranked cybersecurity companies here; the rest are on their profiles.

cybersecurity companies in Terrell, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Sagiss575.0★ (33)42 mi
27ATSecurity575.0★ (10)40 mi
28Prototype IT575.0★ (103)34 mi
29Prototype IT574.9★ (163)45 mi
30IT GOAT575.0★ (101)34 mi
31Altruistic IT575.0★ (29)40 mi
32Armor Defense564.8★ (33)40 mi
33Katalism Cybersecurity565.0★ (28)35 mi
34TeamLogic IT565.0★ (45)59 mi
35NET Inc.565.0★ (14)40 mi
36NTPC Tech Solutions564.8★ (49)58 mi
37Datamax Inc. - Tyler564.8★ (55)63 mi
38Blackswan Cybersecurity, LLC564.0★ (4)35 mi
39Falkon Technologies565.0★ (21)38 mi
40Data Magic Computer Services - IT Support Dallas TX564.9★ (104)42 mi
41Resultant564.3★ (4)40 mi
42Computer Forensic Services Inc565.0★ (5)31 mi
43InfoDefense565.0★ (3)37 mi
44Rudick Innovation & Technology565.0★ (15)30 mi
45GXA555.0★ (3)39 mi
46Integris555.0★ (497)50 mi
47SolCyber555.0★ (7)31 mi
48Techrepair DFW554.8★ (166)60 mi
49Sewelltech554.8★ (438)33 mi
50Mr Computer - On Site Experts555.0★ (193)34 mi

Also serving Terrell

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 Terrell
BusinessGoogle ratingDistance
Abu Tech Computer Repair services5.0★ (2)26 mi
Base Tech IT5.0★ (2)31 mi
BCA IT, Inc.5.0★ (2)30 mi
Corptek Solutions5.0★ (2)35 mi
Cyber One Solutions5.0★ (2)38 mi
Evocative Data Centers Dallas Facility (DAL1)3.0★ (2)30 mi
EZ SECURITY TX Video Security System, Intercom Camera Installation, Alarm System Installation5.0★ (2)39 mi
Geeks on Site5.0★ (2)20 mi
h2 Global, Inc.5.0★ (2)36 mi
ICU Computer Solutions - Dallas5.0★ (2)31 mi
iLogSafe LLC5.0★ (2)38 mi
Lawson Digital Group5.0★ (2)30 mi
Magen Solutions5.0★ (2)39 mi
Nate's Computers4.9★ (236)In Terrell
RiseIT Solutions, Inc.5.0★ (2)36 mi
Sirius Computer Solutions4.5★ (2)34 mi
SolutionOne5.0★ (2)35 mi
Thomas Inc.3.0★ (2)35 mi
Triton Networks LLC5.0★ (2)31 mi
Vergent Communications, a Meriplex company3.5★ (2)38 mi

How we ranked Terrell cybersecurity companies

We scored 297 Terrell 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 Terrell 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 Terrell: frequently asked questions

Who is the best cybersecurity company in Terrell?

By IFR Score, the highest-ranked cybersecurity company in Terrell, TX is LG Networks, Inc with an IFR Score of 61/100. It has 4.6★ from 35 Google reviews. It is open 7 days a week. Infonaligy Partners (#2) and GXA (#3) follow. We ranked 297 cybersecurity companies on nine factors, last updated November 9, 2026.

How many cybersecurity companies are there in Terrell?

ITFirmsRanked ranks 297 cybersecurity companies serving Terrell, TX. Another 20 within 75 mi are listed but not ranked yet. Counts are as of November 2026.

Which cybersecurity companies in Terrell work on weekends?

108 of 297 ranked cybersecurity companies post Saturday hours and 83 post Sunday hours. The highest-ranked open Saturdays are LG Networks, Inc (#1), GXA (#3) and Aspire Cyber (#5). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Terrell cybersecurity companies have?

The median Google rating among 297 rated cybersecurity companies in Terrell is 5.0★, with a median of 13 reviews. Rodi Computer Service has the most, 531 reviews, and ranks #22. 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 Terrell count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 297 cybersecurity companies serving Terrell.
  2. November 2026: 4 duplicate listings merged.