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Best Cybersecurity Companies in Oakland, CA (2026)

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

The short answer

  1. 1

    Best overall in Oakland: PC Professional Managed IT Services, IFR Score 66/100; 4.9★ from 143 Google reviews; open 7 days a week.

  2. 15

    Most-reviewed: Tech 2U, 2,167 Google reviews at 4.9★, the most of 279 ranked; ranked #15.

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

279 Oakland cybersecurity companies are ranked here by IFR Score, from nine published factors. 86 open Saturdays and 68 open Sundays, based on posted hours. The median Google rating is 4.9★ across 279 rated IT firms.

Top 10 cybersecurity companies in Oakland at a glance

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

Top 10 cybersecurity companies in Oakland at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1PC Professional Managed IT Services664.9★ (143)OaklandSat · Sun · EveningsOverall
2People 1st IT Inc. LLC654.9★ (299)San Francisco, 7 mi awaySat · Sun—
3ArcSource Consulting604.9★ (19)Albany, 6 mi awaySat · Sun · Evenings—
4Blackhawk MSP Computer Support and Services604.9★ (46)Danville, 17 mi awaySat · Sun—
5TruAdvantage605.0★ (95)San Francisco, 7 mi away——
6Proofpoint Inc604.2★ (96)Sunnyvale, 31 mi awaySat · Sun · Evenings—
7Palo Alto Networks Inc594.6★ (82)Santa Clara, 33 mi awaySat · Sun · Evenings—
8CompSF IT Solutions.585.0★ (23)San Francisco, 7 mi away——
9SafeAeon Inc.584.7★ (14)Pleasanton, 23 mi awaySat · Sun · Evenings—
10TeamLogic IT585.0★ (33)Oakland——

The 279 best cybersecurity companies in Oakland, 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. Based in San Francisco, 7 mi away

    65/100IFR Score

    Ranked #2 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, 6 mi away

    60/100IFR 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, 7 mi away

    60/100IFR Score

    Ranked #5 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 Sunnyvale, 31 mi away

    60/100IFR Score

    Ranked #6 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
  5. Based in Santa Clara, 33 mi away

    59/100IFR Score

    Ranked #7 because of its Google rating and service focus: 4.6★ from 82 Google reviews, listed on Google as “Computer security service”.

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

    • 4.6★ from 82 Google reviews
    Hours
    Mon–Fri 5 AM–8 PM · Sat–Sun 10 AM–3 PM
    Address
    3000 Tannery Way, Santa Clara, CA 95054
  6. Based in San Francisco, 7 mi away

    58/100IFR 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, 23 mi away

    58/100IFR 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 Oakland

    58/100IFR Score

    Ranked #10 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
  9. Based in Santa Clara, 33 mi away

    57/100IFR Score

    Ranked #11 because of its Google rating and service focus: 3.8★ from 38 Google reviews, listed on Google as “Computer security service”.

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

    • 3.8★ from 38 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    4401 Great America Pkwy, Santa Clara, CA 95054
  10. Based in Concord, 17 mi away

    57/100IFR Score

    Ranked #12 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
  11. 57/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 78 Google reviews, listed on Google as “Computer support and services”.

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

    • 5.0★ from 78 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    3150 De La Cruz Blvd #202, Santa Clara, CA 95054
  12. Based in Fremont, 25 mi away

    57/100IFR Score

    Ranked #14 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
  13. Based in Sacramento, 72 mi away

    57/100IFR Score

    Ranked #15 because of its Google rating and review volume: 4.9★ from 2,167 Google reviews, the most in Oakland.

    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
  14. Based in San Francisco, 7 mi away

    57/100IFR Score

    Ranked #16 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
  15. Based in Foster City, 17 mi away

    57/100IFR Score

    Ranked #17 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
  16. Based in San Francisco, 9 mi away

    56/100IFR Score

    Ranked #18 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
  17. #19 Armis

    Based in San Francisco, 7 mi away

    56/100IFR Score

    Ranked #19 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
  18. Based in San Francisco, 7 mi away

    56/100IFR Score

    Ranked #21 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
  19. Based in San Francisco, 9 mi away

    56/100IFR Score

    Ranked #22 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
  20. Based in San Francisco, 7 mi away

    56/100IFR Score

    Ranked #23 because of its Google rating and review volume: 4.4★ from 564 Google reviews.

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

    • 4.4★ from 564 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun 11 AM–5 PM
    Address
    837 Howard St, San Francisco, CA 94103
  21. Based in San Jose, 38 mi away

    56/100IFR Score

    Ranked #24 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.

    • 5.0★ from 12 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat–Sun 8 AM–12 PM
    Address
    3275 Stevens Creek Blvd Ste 345, San Jose, CA 95117
  22. Based in San Francisco, 7 mi away

    56/100IFR Score

    Ranked #25 because of its Google rating and service focus: 3.7★ from 146 Google reviews, listed on Google as “Computer security service”.

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

    • 3.7★ from 146 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    101 Townsend St, San Francisco, CA 94107

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

cybersecurity companies in Oakland, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Central Computers554.6★ (422)18 mi
27Raise Networks, Inc555.0★ (17)10 mi
28TeamLogic IT555.0★ (21)17 mi
29GSDSolutions554.8★ (18)70 mi
30Jones IT555.0★ (431)8 mi
31EthicalHat Cyber Security555.0★ (3)25 mi
32ZENOPS555.0★ (18)15 mi
33CyberDuo554.7★ (3)8 mi
34Nationwide Analytics545.0★ (3)16 mi
35Check Point Software Technologies Ltd.544.2★ (26)19 mi
36Atlantic Computer Systems545.0★ (13)15 mi
37Sennovate Inc544.8★ (6)17 mi
38SentinelOne543.9★ (18)30 mi
39Central Computers544.5★ (506)33 mi
40Central Computers544.4★ (698)37 mi
41ManagedTEK - IT Security Services & Monitoring545.0★ (12)18 mi
42ITque545.0★ (22)40 mi
43TeamLogic IT545.0★ (13)22 mi
44Veltec Networks Inc | IT Services & Cybersecurity in San Jose544.9★ (25)35 mi
45KDInfotech543.4★ (5)11 mi
46CEH545.0★ (3)9 mi
47MME Consulting, Inc.545.0★ (46)71 mi
48Parachute Technology545.0★ (52)70 mi
49Deepwatch544.4★ (7)27 mi
50Bay Computing Group545.0★ (48)17 mi

Also serving Oakland

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 Oakland
BusinessGoogle ratingDistance
CGI5.0★ (1)In Oakland
CMIT Solutions North Oakland & Walnut Creek5.0★ (15)In Oakland
Comp Tech Services5.0★ (1)In Oakland
Cure8 | Oakland Cannabis Security Solution, IT Services, Compliance Consulting & POS SystemIn Oakland
Cyber Centaurs - Digital ForensicsIn Oakland
CyberDocIn Oakland
Dignity SupplierIn Oakland
Enlace Cyber CenterIn Oakland
Identiqa Inc.In Oakland
IT Less Inc5.0★ (2)13 mi
Jacobian Engineering5.0★ (2)1 mi
Neuvys TechnologiesIn Oakland
Renascent TechnologyIn Oakland
SecureNexa5.0★ (2)7 mi
StoneFly, Inc.1.0★ (2)15 mi
TalPointIn Oakland
TeamLogic IT5.0★ (2)7 mi
Tech Plus Consulting LLC4.2★ (5)In Oakland
Trust Us Technologies4.0★ (1)In Oakland
Xtelesis Corporation5.0★ (2)15 mi

How we ranked Oakland cybersecurity companies

We scored 279 Oakland 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 Oakland 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 Oakland: frequently asked questions

Who is the best cybersecurity company in Oakland?

By IFR Score, the highest-ranked cybersecurity company in Oakland, CA is PC Professional Managed IT Services with an IFR Score of 66/100. It has 4.9★ from 143 Google reviews. It is open 7 days a week. People 1st IT Inc. LLC (#2) and ArcSource Consulting (#3) follow. We ranked 279 cybersecurity companies on nine factors, last updated November 9, 2026.

How many cybersecurity companies are there in Oakland?

ITFirmsRanked ranks 279 cybersecurity companies serving Oakland, CA. 2 of them are based in Oakland; 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 Oakland work on weekends?

86 of 279 ranked cybersecurity companies post Saturday hours and 68 post Sunday hours. The highest-ranked open Saturdays are PC Professional Managed IT Services (#1), People 1st IT Inc. LLC (#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 Oakland cybersecurity companies have?

The median Google rating among 279 rated cybersecurity companies in Oakland is 4.9★, with a median of 14 reviews. Tech 2U has the most, 2,167 reviews, and ranks #15. 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 Oakland count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 279 cybersecurity companies serving Oakland.
  2. November 2026: 1 duplicate listing merged.