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Best Cybersecurity Companies in Highland, CA (2026)

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

The short answer

  1. 1

    Best overall in Highland: KME Systems, IFR Score 64/100; 5.0★ from 389 Google reviews.

  2. 7

    Most-reviewed: Sam's IT Solutions, 497 Google reviews at 5.0★, the most of 474 ranked; ranked #7.

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

474 Highland cybersecurity companies are ranked here by IFR Score, from nine published factors. 177 open Saturdays and 118 open Sundays, based on posted hours. The median Google rating is 5.0★ across 474 rated IT firms.

Top 10 cybersecurity companies in Highland at a glance

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

Top 10 cybersecurity companies in Highland at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1KME Systems645.0★ (389)Irvine, 45 mi away—Overall
2The Bodyguard Group of Beverly Hills635.0★ (107)Beverly Hills, 68 mi awaySat · Sun · Evenings—
3Buzz Cybersecurity - Irvine Managed IT Services624.8★ (72)Irvine, 50 mi awaySat · Sun · Evenings—
4Intelecis - Cyber Security Company in California, IT support Company In California625.0★ (36)Fullerton, 44 mi awaySat · Sun · Evenings—
5Enterprise Guardian Inc.604.8★ (183)Costa Mesa, 49 mi away——
6TechWaste Recycling Inc.604.7★ (172)Santa Ana, 46 mi away——
7Sam's IT Solutions605.0★ (497)Pasadena, 53 mi awaySat · Sun · EveningsMost reviews
8Methodology IT595.0★ (158)Los Angeles, 69 mi away——
9Intelecis IT Support & Cybersecurity Company595.0★ (25)Long Beach, 60 mi awaySat · Sun · Evenings—
10Intelecis Cyber Security Company Irvine595.0★ (87)Irvine, 44 mi awaySat · Sun · Evenings—

The 474 best cybersecurity companies in Highland, 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 Highland

    Based in Irvine, 45 mi away

    64/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 389 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 389 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    15707 Rockfield Blvd Ste 100, Irvine, CA 92618
  2. Based in Santa Ana, 46 mi away

    60/100IFR Score

    Ranked #6 because of its Google rating and service focus: 4.7★ from 172 Google reviews, listed on Google as “Computer security service”.

    • 4.7★ from 172 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    1940 E Occidental St, Santa Ana, CA 92705
  3. Based in Los Angeles, 69 mi away

    59/100IFR Score

    Ranked #8 because of its Google rating and service focus: 5.0★ from 158 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 158 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    8939 S Sepulveda Blvd #506, Los Angeles, CA 90045
  4. #13 QLAN

    Based in Irvine, 45 mi away

    59/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 64 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 64 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    4 Mason STE B, Irvine, CA 92618
  5. #14 Alvaka

    Based in Irvine, 48 mi away

    59/100IFR Score

    Ranked #14 because of its Google rating and service focus: 4.9★ from 15 Google reviews, listed on Google as “Computer security service”.

    • 4.9★ from 15 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    2 Executive Cir, Irvine, CA 92614
  6. Based in Rancho Cucamonga, 21 mi away

    58/100IFR Score

    Ranked #16 because of its Google rating and service focus: 5.0★ from 31 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 31 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    10535 Foothill Blvd Ste 405, Rancho Cucamonga, CA 91730
  7. #17 SecLex

    Based in Riverside, 16 mi away

    58/100IFR Score

    Ranked #17 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 4 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    3610 Central Ave, Riverside, CA 92506
  8. Based in Fontana, 18 mi away

    58/100IFR Score

    Ranked #19 because of its Google rating and review volume: 4.9★ from 273 Google reviews.

    • 4.9★ from 273 Google reviews
    Hours
    Mon–Sat 7 AM–7:30 PM · Sun closed
    Address
    7915 Marshall Ct, Fontana, CA 92336
  9. Based in Long Beach, 58 mi away

    58/100IFR Score

    Ranked #20 because of its Google rating and service focus: 4.6★ from 28 Google reviews, listed on Google as “Computer security service”.

    • 4.6★ from 28 Google reviews
    Hours
    Mon–Sun 8 AM–5 PM
    Address
    3738 Bayer Ave #104, Long Beach, CA 90808

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

cybersecurity companies in Highland, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Fidelity Security Solutions575.0★ (13)69 mi
27Exigent Technologies - Los Angeles Managed IT Services575.0★ (12)69 mi
28Resecurity (USA)574.9★ (10)60 mi
29GenCare Managed IT Services Los Angeles575.0★ (174)59 mi
30GRYHAT CYBERSECURITY565.0★ (5)44 mi
31Tech Guardian564.9★ (87)31 mi
32Tech Expert Guys564.9★ (241)47 mi
33eSecurity Solutions, LLC564.3★ (13)49 mi
34Avatar Website Design565.0★ (24)40 mi
35A1 Computer Service & Parts564.6★ (87)19 mi
3601 LUX Tech565.0★ (18)72 mi
37IT Solve Hub565.0★ (173)47 mi
38Temecula Tech Studio - Computer & Apple Services564.8★ (439)43 mi
39Fusion Factor Corporation564.9★ (9)69 mi
40E-Waste Security565.0★ (28)50 mi
41LMNTRIX USA565.0★ (4)46 mi
42SMS Data Center - Colocation Orange County & Los Angeles County564.2★ (5)47 mi
43Rasec TECH IT Services564.9★ (85)20 mi
44Xpozzed Digital Forensics564.4★ (7)60 mi
45Computer Pro2call564.9★ (175)4 mi
46KaufmanIT, Inc. | Managed IT Support & Cybersecurity565.0★ (45)47 mi
47Green Shield Technology Inc.554.9★ (13)26 mi
48Los Angeles IT555.0★ (7)69 mi
49VegaNext555.0★ (7)69 mi
50Onsite Computing, Inc. IT Services, Cybersecurity, Cloud, VoIP555.0★ (63)27 mi

Also serving Highland

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 Highland
BusinessGoogle ratingDistance
Acutech Network Services3.0★ (2)43 mi
Ailerons IT Consulting5.0★ (2)30 mi
Alchemy Computer Services5.0★ (2)44 mi
CSP Networks5.0★ (2)45 mi
e-Mayhem LLC5.0★ (2)42 mi
Edge Secure5.0★ (2)33 mi
Fisticuphs4.5★ (2)23 mi
FlexTG Los Angeles5.0★ (2)21 mi
Hyuntec Industries - Affordable Computer Repair5.0★ (2)44 mi
Innovative Solutions4.0★ (2)27 mi
iTECH21.5★ (2)45 mi
Larson IT Management5.0★ (2)46 mi
Linutech Solutions5.0★ (2)45 mi
OA Technology4.5★ (2)41 mi
onPhiya Computer Solutions4.4★ (18)In Highland
Pettit Consulting5.0★ (2)13 mi
SentryView5.0★ (2)43 mi
SynoForce5.0★ (2)46 mi
Techgear Works3.0★ (2)47 mi
Techie Networks Inc5.0★ (2)38 mi

How we ranked Highland cybersecurity companies

We scored 474 Highland 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 Highland 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 Highland: frequently asked questions

Who is the best cybersecurity company in Highland?

By IFR Score, the highest-ranked cybersecurity company in Highland, CA is KME Systems with an IFR Score of 64/100. It has 5.0★ from 389 Google reviews. The Bodyguard Group of Beverly Hills (#2) and Buzz Cybersecurity - Irvine Managed IT Services (#3) follow. We ranked 474 cybersecurity companies on nine factors, last updated November 9, 2026.

How many cybersecurity companies are there in Highland?

ITFirmsRanked ranks 474 cybersecurity companies serving Highland, CA. Another 20 within 75 mi are listed but not ranked yet. Counts are as of November 2026.

Which cybersecurity companies in Highland work on weekends?

177 of 474 ranked cybersecurity companies post Saturday hours and 118 post Sunday hours. The highest-ranked open Saturdays are The Bodyguard Group of Beverly Hills (#2), Buzz Cybersecurity - Irvine Managed IT Services (#3) and Intelecis - Cyber Security Company in California, IT support Company In California (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Highland cybersecurity companies have?

The median Google rating among 474 rated cybersecurity companies in Highland is 5.0★, with a median of 14 reviews. Sam's IT Solutions has the most, 497 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 Highland count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 474 cybersecurity companies serving Highland.
  2. November 2026: 6 duplicate listings merged.