67/100IFR Score
Ranked #1 because of its Google rating and service focus: 5.0★ from 211 Google reviews, listed on Google as “Computer security service”.
Best Cybersecurity Companies in South Houston, TX (2026)
190 cybersecurity companies ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in South Houston: Quinn Technology Solutions, IFR Score 67/100; 5.0★ from 211 Google reviews; open 7 days a week.
- 7
Most-reviewed: Impress Computers, 615 Google reviews at 4.8★, the most of 190 ranked; ranked #7.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
190 South Houston cybersecurity companies are ranked here by IFR Score, from nine published factors. 60 open Saturdays and 39 open Sundays, based on posted hours. The median Google rating is 5.0★ across 190 rated IT firms.
Top 10 cybersecurity companies in South Houston at a glance
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
| Rank | Business | IFR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Quinn Technology Solutions | 67 | 5.0★ (211) | Houston, 25 mi away | Sat · Sun · Evenings | Overall |
| 2 | Infinite Consulting Firm, LLC | 66 | 5.0★ (158) | Katy, 19 mi away | Sat · Sun · Evenings | — |
| 3 | IronEdge Group | Houston Managed IT Services | 63 | 4.9★ (238) | Houston, 27 mi away | — | — |
| 4 | OneSource Cloud Services | 63 | 4.7★ (232) | Houston, 12 mi away | — | — |
| 5 | CITOC | 62 | 4.8★ (33) | Houston, 21 mi away | Sat · Sun · Evenings | — |
| 6 | Aldridge | Managed IT & Cybersecurity | 62 | 4.8★ (132) | Houston, 16 mi away | Evenings | — |
| 7 | Impress Computers | 60 | 4.8★ (615) | Katy, 32 mi away | Sat · Sun · Evenings | Most reviews |
| 8 | AMSYS - Managed IT & Cybersecurity | 60 | 4.8★ (80) | Houston, 19 mi away | Sat · Sun · Evenings | — |
| 9 | Meriplex | Houston, TX | 59 | 4.8★ (64) | Houston, 20 mi away | — | — |
| 10 | Centre Technologies | 59 | 4.8★ (65) | Houston, 22 mi away | — | — |
The 190 best cybersecurity companies in South Houston, 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.
Based in Katy, 19 mi away
66/100IFR ScoreRanked #2 because of its Google rating and service focus: 5.0★ from 158 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 27 mi away
63/100IFR ScoreRanked #3 because of its Google rating and service focus: 4.9★ from 238 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 12 mi away
63/100IFR ScoreRanked #4 because of its Google rating and service focus: 4.7★ from 232 Google reviews, listed on Google as “Computer security service”.
#5 CITOC
Based in Houston, 21 mi away
62/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.8★ from 33 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 16 mi away
62/100IFR ScoreRanked #6 because of its Google rating and service focus: 4.8★ from 132 Google reviews, listed on Google as “Computer security service”.
Based in Katy, 32 mi away
60/100IFR ScoreRanked #7 because of its Google rating and review volume: 4.8★ from 615 Google reviews, the most in South Houston.
Based in Houston, 19 mi away
60/100IFR ScoreRanked #8 because of its Google rating and service focus: 4.8★ from 80 Google reviews, listed on Google as “Computer support and services”.
Based in Houston, 20 mi away
59/100IFR ScoreRanked #9 because of its Google rating and service focus: 4.8★ from 64 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 22 mi away
59/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.8★ from 65 Google reviews, listed on Google as “Computer security service”.
#11 TAM IT Services
Based in Spring, 16 mi away
59/100IFR ScoreRanked #11 because of its Google rating and service focus: 5.0★ from 46 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 16 mi away
59/100IFR ScoreRanked #12 because of its Google rating and service focus: 4.9★ from 46 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 22 mi away
59/100IFR ScoreRanked #13 because of its Google rating and service focus: 4.9★ from 9 Google reviews, listed on Google as “Computer security service”.
#14 SMB Integrations
Based in Houston, 15 mi away
59/100IFR ScoreRanked #14 because of its Google rating and service focus: 5.0★ from 37 Google reviews, listed on Google as “Computer security service”.
#15 ByteTime
Based in Katy, 32 mi away
59/100IFR ScoreRanked #15 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 28 mi away
59/100IFR ScoreRanked #16 because of its Google rating and service focus: 5.0★ from 49 Google reviews, listed on Google as “Computer security service”.
Based in Sienna Plantation, 17 mi away
59/100IFR ScoreRanked #17 because of its Google rating and service focus: 5.0★ from 6 Google reviews, listed on Google as “Computer security service”.
#18 NGNSYS
Based in Houston, 15 mi away
58/100IFR ScoreRanked #18 because of its Google rating and service focus: 5.0★ from 24 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 10 mi away
58/100IFR ScoreRanked #19 because of its Google rating and review volume: 4.7★ from 420 Google reviews.
Based in Spring, 33 mi away
58/100IFR ScoreRanked #20 because of its Google rating and review volume: 4.6★ from 350 Google reviews.
Based in Alvin, 13 mi away
57/100IFR ScoreRanked #21 because of its Google rating and service focus: 5.0★ from 6 Google reviews, listed on Google as “Computer security service”.
#22 TX Solutions
Based in Houston, 22 mi away
57/100IFR ScoreRanked #22 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Computer security service”.
#23 TeamLogic IT
Based in Sugar Land, 22 mi away
57/100IFR ScoreRanked #23 because of its Google rating and service focus: 5.0★ from 24 Google reviews, listed on Google as “Computer security service”.
Based in Houston, 16 mi away
57/100IFR ScoreRanked #24 because of its Google rating and service focus: 5.0★ from 16 Google reviews, listed on Google as “Computer security service”.
#25 Chrysalis
Based in Houston, 27 mi away
57/100IFR ScoreRanked #25 because of its Google rating and service focus: 4.7★ from 30 Google reviews, listed on Google as “Computer security service”.
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 190 ranked cybersecurity companies here; the rest are on their profiles.
Also serving South Houston
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.
| Business | Google rating | Distance |
|---|---|---|
| All Repair PC Mac Laptop Computer IT Services | 5.0★ (2) | 12 mi |
| alliant Cybersecurity | 5.0★ (2) | 14 mi |
| ALPHA-1 TECH LLC | 5.0★ (2) | 2 mi |
| AVCtechnologies | 3.0★ (2) | 20 mi |
| Envision Design, LLC | 5.0★ (2) | 11 mi |
| Evertech, LLC | 2.5★ (2) | 10 mi |
| Houston Home Tech | 5.0★ (2) | 18 mi |
| Inner-Net Inc. | 4.5★ (2) | 21 mi |
| Joe Computer Services | 4.0★ (2) | 17 mi |
| Krypto IT Managed Cyber Security | 5.0★ (2) | 12 mi |
| Lantelligent: Managed IT Services Houston | Expert IT Support | 5.0★ (2) | 21 mi |
| Network Box USA, LLC | 4.5★ (2) | 21 mi |
| Omni MSP | 1.0★ (2) | 18 mi |
| R Tech Department | 5.0★ (2) | 20 mi |
| Reliant Global Technology, Inc. | 5.0★ (2) | 10 mi |
| Sirius Computer Solutions | 5.0★ (2) | 17 mi |
| Star Managed Services | 5.0★ (2) | 21 mi |
| Uptime Technical Consultants | 5.0★ (2) | 18 mi |
| Veloci | 5.0★ (2) | 27 mi |
| Westway PC | 5.0★ (2) | 16 mi |
How we ranked South Houston cybersecurity companies
We scored 190 South Houston 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.
| Factor | Weight | Computed from | In South Houston data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Review volume | 15% | Number of Google reviews, compared with the most-reviewed IT firm on the list | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday and 24/7 support | Measured |
| Service focus | 15% | How clearly the firm does this service (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The firm has claimed its IT Firms Ranked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The firm links to IT Firms Ranked from its own website with our badge, checked periodically | Measured |
| Client reviews | 10% | Verified client reviews collected by IT Firms Ranked: their rating and how many there are | Measured |
How to choose a cybersecurity company
- Ask whether monitoring is staffed around the clock by the firm itself or by a partner.
- Ask for a sample assessment or penetration-test report with client details removed.
- Check experience with your industry’s rules (for example HIPAA, PCI DSS or CMMC).
- Ask what the firm does in the first hour of an incident, and whether that is in the contract.
- Ask for two or three references from clients of your size and industry, and call them.
- 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 South Houston: frequently asked questions
Who is the best cybersecurity company in South Houston?
By IFR Score, the highest-ranked cybersecurity company in South Houston, TX is Quinn Technology Solutions with an IFR Score of 67/100. It has 5.0★ from 211 Google reviews. It is open 7 days a week. Infinite Consulting Firm, LLC (#2) and IronEdge Group | Houston Managed IT Services (#3) follow. We ranked 190 cybersecurity companies on nine factors, last updated November 9, 2026.
How many cybersecurity companies are there in South Houston?
ITFirmsRanked ranks 190 cybersecurity companies serving South Houston, TX. Another 20 within 75 mi are listed but not ranked yet. Counts are as of November 2026.
Which cybersecurity companies in South Houston work on weekends?
60 of 190 ranked cybersecurity companies post Saturday hours and 39 post Sunday hours. The highest-ranked open Saturdays are Quinn Technology Solutions (#1), Infinite Consulting Firm, LLC (#2) and CITOC (#5). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do South Houston cybersecurity companies have?
The median Google rating among 190 rated cybersecurity companies in South Houston is 5.0★, with a median of 16 reviews. Impress Computers has the most, 615 reviews, and ranks #7. 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 South Houston count in this ranking?
Yes, if they are within 75 mi of the South Houston 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 South Houston 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 South Houston
- November 2026: IFR Scores recalculated for 190 cybersecurity companies serving South Houston.
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