63/100IFR Score
Ranked #1 because of its Google rating and service focus: 5.0★ from 337 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Best Cybersecurity Companies in San Marcos, TX (2026)
175 cybersecurity companies ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in San Marcos: Centre Technologies, IFR Score 63/100; 5.0★ from 337 Google reviews.
- 20
Most-reviewed: DOCUmation, 731 Google reviews at 4.9★, the most of 175 ranked; ranked #20.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
175 San Marcos cybersecurity companies are ranked here by IFR Score, from nine published factors. 41 open Saturdays and 30 open Sundays, based on posted hours. The median Google rating is 4.9★ across 175 rated IT firms.
Top 10 cybersecurity companies in San Marcos 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 | Centre Technologies | 63 | 5.0★ (337) | Austin, 35 mi away | — | Overall |
| 2 | Flashback Data Recovery - Array | 61 | 4.9★ (122) | Austin, 25 mi away | — | — |
| 3 | SecureTech | 60 | 5.0★ (147) | San Antonio, 50 mi away | — | — |
| 4 | DefendIT Services, Inc. | 60 | 5.0★ (21) | San Antonio, 41 mi away | Sat · Sun · Evenings | — |
| 5 | CMIT Solutions | 59 | 5.0★ (18) | Austin, 42 mi away | Sat · Sun · Evenings | — |
| 6 | Live Oak IT Partners - Managed IT Services | 59 | 5.0★ (51) | Austin, 23 mi away | Evenings | — |
| 7 | CMIT Solutions | 59 | 4.9★ (252) | Austin, 24 mi away | Sat · Sun · Evenings | — |
| 8 | TeamLogic IT | 59 | 5.0★ (67) | Austin, 37 mi away | — | — |
| 9 | EXOS | Austin, TX | 58 | 5.0★ (10) | Austin, 37 mi away | Sat · Sun · Evenings | — |
| 10 | OROBI | Cybersecurity Solutions | 58 | 5.0★ (12) | San Antonio, 45 mi away | Sat · Sun · Evenings | — |
The 175 best cybersecurity companies in San Marcos, 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.
Based in Austin, 25 mi away
61/100IFR ScoreRanked #2 because of its Google rating and service focus: 4.9★ from 122 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#3 SecureTech
Based in San Antonio, 50 mi away
60/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 147 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in San Antonio, 41 mi away
60/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 21 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Austin, 42 mi away
59/100IFR ScoreRanked #5 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Austin, 23 mi away
59/100IFR ScoreRanked #6 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.
Based in Austin, 24 mi away
59/100IFR ScoreRanked #7 because of its Google rating and review volume: 4.9★ from 252 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#8 TeamLogic IT
Based in Austin, 37 mi away
59/100IFR ScoreRanked #8 because of its Google rating and service focus: 5.0★ from 67 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Austin, 37 mi away
58/100IFR ScoreRanked #9 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.
Based in San Antonio, 45 mi away
58/100IFR ScoreRanked #10 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.
#11 Bridgehead IT
Based in San Antonio, 39 mi away
58/100IFR ScoreRanked #11 because of its Google rating and service focus: 4.8★ from 70 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in San Antonio, 41 mi away
58/100IFR ScoreRanked #12 because of its Google rating and service focus: 4.7★ from 39 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#13 CNF Technologies
Based in San Antonio, 54 mi away
57/100IFR ScoreRanked #13 because of its Google rating and service focus: 5.0★ from 11 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Austin, 28 mi away
57/100IFR ScoreRanked #14 because of its Google rating and service focus: 4.8★ from 4 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in San Antonio, 41 mi away
57/100IFR ScoreRanked #15 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Pflugerville, 43 mi away
57/100IFR ScoreRanked #16 because of its Google rating and service focus: 4.6★ from 21 Google reviews, listed on Google as “Computer security service”.
Based on 7 of 9 factors; recency and availability not yet collected.
#17 7tech
Based in San Antonio, 39 mi away
56/100IFR ScoreRanked #17 because of its Google rating and review volume: 5.0★ from 113 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
#18 Thales Group
Based in Austin, 37 mi away
56/100IFR ScoreRanked #18 because of its Google rating and service focus: 4.7★ from 34 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#19 CSM Systems
Based in Round Rock, 46 mi away
56/100IFR ScoreRanked #19 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.
#20 DOCUmation
Based in San Antonio, 43 mi away
56/100IFR ScoreRanked #20 because of its Google rating and review volume: 4.9★ from 731 Google reviews, the most in San Marcos.
Based on 8 of 9 factors; recency not yet collected.
Based in Austin, 36 mi away
55/100IFR ScoreRanked #21 because of its Google rating and service focus: 4.7★ from 25 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Canyon Lake, 13 mi away
55/100IFR ScoreRanked #22 because of its Google rating and service focus: 4.6★ from 10 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
#23 Stradiant
Based in Austin, 22 mi away
55/100IFR ScoreRanked #23 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.
Based in Austin, 36 mi away
55/100IFR ScoreRanked #24 because of its Google rating and review volume: 4.8★ from 97 Google reviews.
Based on 8 of 9 factors; recency not yet collected.
Based in Austin, 35 mi away
55/100IFR ScoreRanked #25 because of its Google rating and service focus: 5.0★ from 8 Google reviews, listed on Google as “Computer security service”.
Based on 8 of 9 factors; recency not yet collected.
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 175 ranked cybersecurity companies here; the rest are on their profiles.
| Rank | Business | IFR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | ASAP Computer Services | 55 | 4.7★ (107) | 38 mi |
| 27 | Apparatus IT | 55 | 5.0★ (6) | 47 mi |
| 28 | MoreMax, Inc | 55 | 5.0★ (15) | 39 mi |
| 29 | Data Foundry - Texas 1 (Austin Data Center) | 55 | 4.7★ (64) | 26 mi |
| 30 | Aldridge | Managed IT & Cybersecurity | 55 | 4.0★ (34) | 41 mi |
| 31 | Sdsone | 55 | 5.0★ (11) | 29 mi |
| 32 | Renaissance Systems, Inc. (RSI) | 55 | 5.0★ (14) | 37 mi |
| 33 | Infinite IT Results | 54 | 5.0★ (13) | 35 mi |
| 34 | SpyCloud | 54 | 4.4★ (14) | 27 mi |
| 35 | Spectre Intelligence | 54 | 4.9★ (11) | 35 mi |
| 36 | Radtak Solutions | 54 | 5.0★ (12) | 35 mi |
| 37 | Capstone Works | 54 | 4.9★ (72) | 45 mi |
| 38 | TechOnPurpose | 54 | 4.6★ (10) | 26 mi |
| 39 | Sirius Computer Solutions | 54 | 4.8★ (15) | 41 mi |
| 40 | RIATA Technologies | 54 | 5.0★ (11) | 38 mi |
| 41 | Silotech Group, Inc | 54 | 4.3★ (15) | 36 mi |
| 42 | US Technical Services Group | 54 | 5.0★ (10) | 36 mi |
| 43 | Integrate Cyber | 54 | 5.0★ (9) | 30 mi |
| 44 | 7tech | 54 | 5.0★ (41) | 34 mi |
| 45 | Whitehat Virtual Technologies | 54 | 4.9★ (38) | 28 mi |
| 46 | TeamLogic IT | 54 | 5.0★ (11) | 42 mi |
| 47 | HCS Technical Services LLC | 54 | 5.0★ (83) | In San Marcos |
| 48 | CMIT Solutions | 53 | 5.0★ (22) | 17 mi |
| 49 | Cyberworks Technology Group | 53 | 5.0★ (13) | 43 mi |
| 50 | TeamLogic IT | 53 | 5.0★ (9) | 37 mi |
Also serving San Marcos
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 |
|---|---|---|
| Alamo Tech | 5.0★ (1) | In San Marcos |
| Aldridge | Managed IT & Cybersecurity | 5.0★ (1) | 28 mi |
| BlackLake Security | 5.0★ (2) | 36 mi |
| CCI Computer Services | 4.5★ (16) | In San Marcos |
| Data Foundry - Corporate Headquarters | 5.0★ (1) | 28 mi |
| HC Computer Security Services | 5.0★ (2) | 31 mi |
| Hill Country Tech Guys | 4.8★ (146) | In San Marcos |
| IT Outsourcing Solutions | 5.0★ (3) | In San Marcos |
| Monogon Solutions LLC | In San Marcos | |
| Neptune9 IT Solutions | 5.0★ (2) | 34 mi |
| Nice2Geekyou #2 | 5.0★ (1) | In San Marcos |
| Ryse Technology | 5.0★ (2) | 31 mi |
| San Marcos Computers LLC | 4.7★ (201) | In San Marcos |
| Sea Change Systems | 5.0★ (2) | 19 mi |
| Skyriver IT | 5.0★ (1) | In San Marcos |
| Southwest IT Solutions | 5.0★ (1) | 21 mi |
| Tech Service Solutions | 4.5★ (2) | 50 mi |
| Torch Networks, LLC | 5.0★ (5) | In San Marcos |
| Trammell Ventures | 5.0★ (2) | 40 mi |
| Visual Edge IT San Antonio, Texas | 3.0★ (2) | 41 mi |
How we ranked San Marcos cybersecurity companies
We scored 175 San Marcos 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 San Marcos 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 San Marcos: frequently asked questions
Who is the best cybersecurity company in San Marcos?
By IFR Score, the highest-ranked cybersecurity company in San Marcos, TX is Centre Technologies with an IFR Score of 63/100. It has 5.0★ from 337 Google reviews. Flashback Data Recovery - Array (#2) and SecureTech (#3) follow. We ranked 175 cybersecurity companies on nine factors, last updated November 9, 2026.
How many cybersecurity companies are there in San Marcos?
ITFirmsRanked ranks 175 cybersecurity companies serving San Marcos, TX. 1 of them is based in San Marcos; the rest serve it from nearby towns. Another 20 within 75 mi are listed but not ranked yet. Counts are as of November 2026.
Which cybersecurity companies in San Marcos work on weekends?
41 of 175 ranked cybersecurity companies post Saturday hours and 30 post Sunday hours. The highest-ranked open Saturdays are DefendIT Services, Inc. (#4), CMIT Solutions (#5) and CMIT Solutions (#7). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do San Marcos cybersecurity companies have?
The median Google rating among 175 rated cybersecurity companies in San Marcos is 4.9★, with a median of 15 reviews. DOCUmation has the most, 731 reviews, and ranks #20. 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 San Marcos count in this ranking?
Yes, if they are within 75 mi of the San Marcos 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 San Marcos 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 San Marcos
- November 2026: IFR Scores recalculated for 175 cybersecurity companies serving San Marcos.
- November 2026: 1 duplicate listing merged.
More cybersecurity companies and San Marcos pages
Cybersecurity companies near San Marcos
- Cybersecurity companies in Kyle, TX174 ranked
- Cybersecurity companies in Buda, TX177 ranked
- Cybersecurity companies in Lockhart, TX171 ranked
- Cybersecurity companies in New Braunfels, TX173 ranked
- Cybersecurity companies in Canyon Lake, TX173 ranked
- Cybersecurity companies in Seguin, TX168 ranked
- Cybersecurity companies in Cibolo, TX166 ranked
- Cybersecurity companies in Austin, TX175 ranked
- Cybersecurity companies in Schertz, TX166 ranked
- Cybersecurity companies in Universal City, TX161 ranked
Other services in San Marcos
- Managed IT service providers in San Marcos276 ranked
- IT consultants in San Marcos188 ranked
- Network cabling and installation companies in San Marcos73 ranked
- Business phone system providers in San Marcos80 ranked
- Data recovery services in San Marcos103 ranked
- Computer repair shops in San Marcos25 ranked
- All IT providers in San Marcos