Skip to content

Best Cybersecurity Companies in Cerritos, CA (2026)

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

The short answer

  1. 1

    Best overall in Cerritos: The Bodyguard Group of Beverly Hills, IFR Score 66/100; 5.0★ from 107 Google reviews; open 7 days a week.

  2. 10

    Most-reviewed: Sam's IT Solutions, 497 Google reviews at 5.0★, the most of 530 ranked; ranked #10.

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

530 Cerritos cybersecurity companies are ranked here by IFR Score, from nine published factors. 189 open Saturdays and 124 open Sundays, based on posted hours. The median Google rating is 5.0★ across 530 rated IT firms.

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

Top 10 cybersecurity companies in Cerritos at a glance

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

Top 10 cybersecurity companies in Cerritos at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1The Bodyguard Group of Beverly Hills665.0★ (107)Beverly Hills, 24 mi awaySat · Sun · EveningsOverall
2KME Systems655.0★ (389)Irvine, 25 mi away——
3Buzz Cybersecurity - Irvine Managed IT Services654.8★ (72)Irvine, 18 mi awaySat · Sun · Evenings—
4Intelecis - Cyber Security Company in California, IT support Company In California645.0★ (36)Fullerton, 8 mi awaySat · Sun · Evenings—
5Intelecis IT Support & Cybersecurity Company635.0★ (25)Long Beach, 7 mi awaySat · Sun · Evenings—
6Methodology IT635.0★ (158)Los Angeles, 20 mi away——
7Enterprise Guardian Inc.634.8★ (183)Costa Mesa, 16 mi away——
8Generation IX | Managed IT Services & IT Support In Los Angeles624.8★ (31)Los Angeles, 20 mi awaySat · Sun · Evenings—
9KDIT - Huntington Beach Managed IT Services Company625.0★ (19)Huntington Beach, 8 mi awaySat · Sun · Evenings—
10Sam's IT Solutions625.0★ (497)Pasadena, 20 mi awaySat · Sun · EveningsMost reviews

The 530 best cybersecurity companies in Cerritos, 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.

  2. #2 KME Systems

    Based in Irvine, 25 mi away

    65/100IFR Score

    Ranked #2 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
    View profile for KME Systems(949) 462-7001

  6. #6 Methodology IT

    Based in Los Angeles, 20 mi away

    63/100IFR Score

    Ranked #6 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
    View profile for Methodology IT(310) 642-9494

  11. #11 TechWaste Recycling Inc.

    Based in Santa Ana, 16 mi away

    62/100IFR Score

    Ranked #11 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
    View profile for TechWaste Recycling Inc.(866) 637-6814

  12. #12 Mytech Partners, Inc.

    Based in Long Beach, 5 mi away

    62/100IFR Score

    Ranked #12 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
    View profile for Mytech Partners, Inc.(562) 795-6726

  14. #14 Alvaka

    Based in Irvine, 17 mi away

    61/100IFR 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
    View profile for Alvaka(949) 428-5000

  17. #17 QLAN

    Based in Irvine, 25 mi away

    60/100IFR Score

    Ranked #17 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
    View profile for QLAN(949) 597-8560

  19. #19 Resecurity (USA)

    Based in Los Angeles, 17 mi away

    60/100IFR Score

    Ranked #19 because of its Google rating and service focus: 4.9★ from 10 Google reviews, listed on Google as “Computer security service”.

    • 4.9★ from 10 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    445 S Figueroa St, Los Angeles, CA 90071
    View profile for Resecurity (USA)(424) 283-0440

  22. #22 01 LUX Tech

    Based in Los Angeles, 27 mi away

    59/100IFR Score

    Ranked #22 because of its Google rating and service focus: 5.0★ from 18 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 18 Google reviews
    Hours
    Mon–Sun 7 AM–10 PM
    Address
    520 S Sepulveda Blvd Suite 202, Los Angeles, CA 90049
    View profile for 01 LUX Tech(310) 421-6169

  24. #24 VegaNext

    Based in El Segundo, 19 mi away

    59/100IFR Score

    Ranked #24 because of its Google rating and service focus: 5.0★ from 7 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 7 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    400 Continental Blvd, El Segundo, CA 90245
    View profile for VegaNext(888) 834-2550

How we ranked Cerritos cybersecurity companies

We scored 530 Cerritos 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 Cerritos 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 Cerritos: frequently asked questions

Who is the best cybersecurity company in Cerritos?

By IFR Score, the highest-ranked cybersecurity company in Cerritos, CA is The Bodyguard Group of Beverly Hills with an IFR Score of 66/100. It has 5.0★ from 107 Google reviews. It is open 7 days a week. KME Systems (#2) and Buzz Cybersecurity - Irvine Managed IT Services (#3) follow. We ranked 530 cybersecurity companies on nine factors, last updated November 9, 2026.

Which cybersecurity companies in Cerritos work on weekends?

189 of 530 ranked cybersecurity companies post Saturday hours and 124 post Sunday hours. The highest-ranked open Saturdays are The Bodyguard Group of Beverly Hills (#1), 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 Cerritos cybersecurity companies have?

The median Google rating among 530 rated cybersecurity companies in Cerritos is 5.0★, with a median of 14 reviews. Sam's IT Solutions has the most, 497 reviews, and ranks #10. 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 Cerritos count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 530 cybersecurity companies serving Cerritos.
  2. November 2026: 3 duplicate listings merged.

More cybersecurity companies and Cerritos pages