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Best Cybersecurity Companies in Rohnert Park, CA (2026)

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

The short answer

  1. 1

    Best overall in Rohnert Park: People 1st IT Inc. LLC, IFR Score 63/100; 4.9★ from 299 Google reviews; open 7 days a week.

  2. 6

    Most-reviewed: Tech 2U, 2,167 Google reviews at 4.9★, the most of 192 ranked; ranked #6.

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

192 Rohnert Park cybersecurity companies are ranked here by IFR Score, from nine published factors. 60 open Saturdays and 48 open Sundays, based on posted hours. The median Google rating is 4.9★ across 192 rated IT firms.

Top 10 cybersecurity companies in Rohnert Park at a glance

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

Top 10 cybersecurity companies in Rohnert Park at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1People 1st IT Inc. LLC634.9★ (299)San Francisco, 41 mi awaySat · SunOverall
2PC Professional Managed IT Services624.9★ (143)Oakland, 44 mi awaySat · Sun · Evenings—
3ArcSource Consulting584.9★ (19)Albany, 38 mi awaySat · Sun · Evenings—
4TruAdvantage575.0★ (95)San Francisco, 41 mi away——
5Blackhawk MSP Computer Support and Services574.9★ (46)Danville, 57 mi awaySat · Sun—
6Tech 2U574.9★ (2,167)Sacramento, 72 mi awaySat · SunMost reviews
7Proofpoint Inc574.2★ (96)Sunnyvale, 75 mi awaySat · Sun · Evenings—
8CompSF IT Solutions.565.0★ (23)San Francisco, 41 mi away——
9SafeAeon Inc.554.7★ (14)Pleasanton, 64 mi awaySat · Sun · Evenings—
10Big Dogs Tech554.6★ (79)Concord, 44 mi away——

The 192 best cybersecurity companies in Rohnert Park, 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 Rohnert Park

    Based in San Francisco, 41 mi away

    63/100IFR Score

    Ranked #1 because of its Google rating and service focus: 4.9★ from 299 Google reviews, listed on Google as “Computer security service”.

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

    • 4.9★ from 299 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun 8 AM–5 PM
    Address
    182 Howard St #756, San Francisco, CA 94105
  2. Based in Albany, 38 mi away

    58/100IFR Score

    Ranked #3 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
    1035 San Pablo Ave Ste 3, Albany, CA 94706
  3. Based in San Francisco, 41 mi away

    57/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 95 Google reviews, listed on Google as “Computer security service”.

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

    • 5.0★ from 95 Google reviews
    Hours
    Mon–Fri 8:30 AM–5:30 PM · Sat–Sun closed
    Address
    50 California St Ste 1500, San Francisco, CA 94111
  4. Based in Sacramento, 72 mi away

    57/100IFR Score

    Ranked #6 because of its Google rating and review volume: 4.9★ from 2,167 Google reviews, the most in Rohnert Park.

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

    • 4.9★ from 2,167 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun 9 AM–2 PM
    Address
    1590 Howe Ave, Sacramento, CA 95825
  5. Based in Sunnyvale, 75 mi away

    57/100IFR Score

    Ranked #7 because of its Google rating and service focus: 4.2★ from 96 Google reviews, listed on Google as “Computer security service”.

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

    • 4.2★ from 96 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    925 W Maude Ave, Sunnyvale, CA 94085
  6. Based in San Francisco, 41 mi away

    56/100IFR Score

    Ranked #8 because of its Google rating and service focus: 5.0★ from 23 Google reviews, listed on Google as “Computer security service”.

    Based on 7 of 9 factors; recency and availability not yet collected.

    • 5.0★ from 23 Google reviews
    Address
    548 Market St Ste 31580, San Francisco, CA 94104
  7. Based in Pleasanton, 64 mi away

    55/100IFR Score

    Ranked #9 because of its Google rating and service focus: 4.7★ from 14 Google reviews, listed on Google as “Computer security service”.

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

    • 4.7★ from 14 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    6701 Koll Center Pkwy Ste 250, Pleasanton, CA 94566
  8. Based in Concord, 44 mi away

    55/100IFR Score

    Ranked #10 because of its Google rating and service focus: 4.6★ from 79 Google reviews, listed on Google as “Computer security service”.

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

    • 4.6★ from 79 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    1647 Willow Pass Road Delivery Only, 2280 Diamond Blvd #150, Concord, CA 94520
  9. Based in Oakland, 44 mi away

    55/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 33 Google reviews, listed on Google as “Computer security service”.

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

    • 5.0★ from 33 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    614 Grand Ave Ste 322, Oakland, CA 94610
  10. Based in Santa Rosa, 8 mi away

    54/100IFR Score

    Ranked #12 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–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    1500 4th St, Santa Rosa, CA 95404
  11. Based in San Francisco, 41 mi away

    54/100IFR Score

    Ranked #15 because of its Google rating and service focus: 5.0★ from 24 Google reviews, listed on Google as “Computer security service”.

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

    • 5.0★ from 24 Google reviews
    Hours
    Mon–Fri 6 AM–5 PM · Sat–Sun closed
    Address
    268 Bush St, San Francisco, CA 94104
  12. Based in San Francisco, 42 mi away

    54/100IFR Score

    Ranked #16 because of its Google rating and service focus: 4.0★ from 4 Google reviews, listed on Google as “Computer security service”.

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

    • 4.0★ from 4 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    2261 Market St, San Francisco, CA 94114
  13. Based in Sacramento, 67 mi away

    54/100IFR Score

    Ranked #17 because of its Google rating and service focus: 5.0★ from 46 Google reviews, listed on Google as “Computer security service”.

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

    • 5.0★ from 46 Google reviews
    Hours
    Mon–Fri 5 AM–5 PM · Sat–Sun closed
    Address
    4714 Duckhorn Dr, Sacramento, CA 95834
  14. Based in San Francisco, 41 mi away

    54/100IFR Score

    Ranked #18 because of its Google rating and service focus: 4.0★ from 21 Google reviews, listed on Google as “Computer security service”.

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

    • 4.0★ from 21 Google reviews
    Hours
    Mon–Fri 12 AM–12 AM · Sat–Sun closed
    Address
    300 California St Ste 220, San Francisco, CA 94104
  15. Based in Fremont, 69 mi away

    54/100IFR Score

    Ranked #19 because of its Google rating and service focus: 5.0★ from 24 Google reviews, listed on Google as “Computer security service”.

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

    • 5.0★ from 24 Google reviews
    Hours
    Mon–Sat 7 AM–7 PM · Sun closed
    Address
    41111 Mission Blvd Suite 246, Fremont, CA 94539
  16. Based in San Francisco, 41 mi away

    54/100IFR Score

    Ranked #20 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer security service”.

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

    • 5.0★ from 5 Google reviews
    Hours
    Mon–Sun 9 AM–7 PM
    Address
    2443 Fillmore St #380-6871, San Francisco, CA 94115
  17. Based in Sacramento, 71 mi away

    54/100IFR Score

    Ranked #21 because of its Google rating and service focus: 5.0★ from 52 Google reviews, listed on Google as “Computer security service”.

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

    • 5.0★ from 52 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    333 University Ave suit 200, Sacramento, CA 95825
  18. #22 Armis

    Based in San Francisco, 41 mi away

    54/100IFR Score

    Ranked #22 because of its Google rating and service focus: 4.6★ from 11 Google reviews, listed on Google as “Computer security service”.

    Based on 7 of 9 factors; recency and availability not yet collected.

    • 4.6★ from 11 Google reviews
    Address
    548 Market St, San Francisco, CA 94104
  19. Based in Alum Rock, 35 mi away

    54/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 17 Google reviews, listed on Google as “Computer security service”.

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

    • 5.0★ from 17 Google reviews
    Hours
    Mon–Fri 9 AM–6 PM · Sat–Sun closed
  20. Based in Concord, 44 mi away

    54/100IFR Score

    Ranked #24 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.

    • 5.0★ from 21 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1390 Willow Pass Rd Ste 420, Concord, CA 94520
  21. Based in Foster City, 59 mi away

    54/100IFR Score

    Ranked #25 because of its Google rating and service focus: 4.6★ from 20 Google reviews, listed on Google as “Computer security service”.

    Based on 7 of 9 factors; recency and availability not yet collected.

    • 4.6★ from 20 Google reviews
    Address
    1051 E Hillsdale Blvd 4th Floor, Foster City, CA 94404

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

cybersecurity companies in Rohnert Park, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Central Computers534.4★ (564)42 mi
27ZENOPS535.0★ (18)45 mi
28Cloudflare533.7★ (146)42 mi
29Jones IT535.0★ (431)42 mi
30ManagedTEK - IT Security Services & Monitoring535.0★ (12)37 mi
31CyberDuo524.7★ (3)44 mi
32ER Tech Pros524.2★ (5)73 mi
33H3Systems525.0★ (8)24 mi
34Central Computers524.6★ (422)59 mi
35EthicalHat Cyber Security525.0★ (3)69 mi
36Bay Computing Group525.0★ (48)44 mi
37Nationwide Analytics525.0★ (3)56 mi
38Sennovate Inc514.8★ (6)56 mi
39LOOKINGPOINT, a Presidio company514.8★ (9)43 mi
40Check Point Software Technologies Ltd.514.2★ (26)61 mi
41Atlantic Computer Systems515.0★ (13)58 mi
42CEH515.0★ (3)42 mi
43nDataStor - Sacramento Managed IT Services Company515.0★ (17)70 mi
44RushForge515.0★ (8)43 mi
45SentinelOne513.9★ (18)74 mi
46TeamLogic IT515.0★ (13)62 mi
47KDInfotech513.4★ (5)50 mi
4842, Inc.515.0★ (54)40 mi
49GroupOne IT - Sacramento Managed IT Services Company515.0★ (59)67 mi
50TeamLogic IT North Bay of San Francisco515.0★ (10)9 mi

Also serving Rohnert Park

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 Rohnert Park
BusinessGoogle ratingDistance
415 IT5.0★ (2)27 mi
Backoffice Technology Group3.5★ (2)In Rohnert Park
Bray Networking1.0★ (2)53 mi
Cali TechIn Rohnert Park
Connections IT Inc5.0★ (1)In Rohnert Park
CRPUSD Technology Services DepartmentIn Rohnert Park
DiLello.TechIn Rohnert Park
DK Systems - Computer and Network Services4.4★ (52)In Rohnert Park
IT & Cybersecurity Trusted Partner5.0★ (2)41 mi
Jacobian Engineering5.0★ (2)45 mi
Micro DepotIn Rohnert Park
Noma-TekIn Rohnert Park
PC Service Center - Business IT Support, Managed IT Services & Cybersecurity4.5★ (2)30 mi
Rogue Hive LLC.5.0★ (2)25 mi
Scoja Technology Services -Residential and Business IT5.0★ (2)27 mi
SecureNexa5.0★ (2)41 mi
Sonoma IT Solutions5.0★ (6)In Rohnert Park
TeamLogic IT5.0★ (2)43 mi
Tech Assist 1015.0★ (5)In Rohnert Park
Wembley Partners5.0★ (1)In Rohnert Park

How we ranked Rohnert Park cybersecurity companies

We scored 192 Rohnert Park 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 Rohnert Park 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 Rohnert Park: frequently asked questions

Who is the best cybersecurity company in Rohnert Park?

By IFR Score, the highest-ranked cybersecurity company in Rohnert Park, CA is People 1st IT Inc. LLC with an IFR Score of 63/100. It has 4.9★ from 299 Google reviews. It is open 7 days a week. PC Professional Managed IT Services (#2) and ArcSource Consulting (#3) follow. We ranked 192 cybersecurity companies on nine factors, last updated November 9, 2026.

How many cybersecurity companies are there in Rohnert Park?

ITFirmsRanked ranks 192 cybersecurity companies serving Rohnert Park, CA. Another 20 within 75 mi are listed but not ranked yet. Counts are as of November 2026.

Which cybersecurity companies in Rohnert Park work on weekends?

60 of 192 ranked cybersecurity companies post Saturday hours and 48 post Sunday hours. The highest-ranked open Saturdays are People 1st IT Inc. LLC (#1), PC Professional Managed IT Services (#2) and ArcSource Consulting (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Rohnert Park cybersecurity companies have?

The median Google rating among 192 rated cybersecurity companies in Rohnert Park is 4.9★, with a median of 15 reviews. Tech 2U has the most, 2,167 reviews, and ranks #6. 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 Rohnert Park count in this ranking?

Yes, if they are within 75 mi of the Rohnert Park 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 Rohnert Park 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 Rohnert Park

  1. November 2026: IFR Scores recalculated for 192 cybersecurity companies serving Rohnert Park.
  2. November 2026: 1 duplicate listing merged.