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Best Cybersecurity Companies in Rosemont, CA (2026)

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

The short answer

  1. 1

    Best overall in Rosemont: Tech 2U, IFR Score 62/100; 4.9★ from 2,167 Google reviews; open 7 days a week.

  2. 6

    Most-reviewed: Nerds On Call, 514 Google reviews at 4.8★, the most of 177 ranked after Tech 2U; ranked #6.

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

177 Rosemont cybersecurity companies are ranked here by IFR Score, from nine published factors. 57 open Saturdays and 48 open Sundays, based on posted hours. The median Google rating is 5.0★ across 177 rated IT firms.

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

Top 10 cybersecurity companies in Rosemont at a glance

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

Top 10 cybersecurity companies in Rosemont at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Tech 2U624.9★ (2,167)Sacramento, 4 mi awaySat · SunOverall
2PC Professional Managed IT Services604.9★ (143)Oakland, 71 mi awaySat · Sun · Evenings—
3Parachute Technology595.0★ (52)Sacramento, 3 mi away——
4MME Consulting, Inc.585.0★ (46)Sacramento, 12 mi away——
5ER Tech Pros584.2★ (5)Sacramento, 1 mi awaySat · Sun · Evenings—
6Nerds On Call584.8★ (514)Fair Oaks, 10 mi awaySat · Sun · EveningsMost reviews
7Enfology Services575.0★ (5)Sacramento, 14 mi awaySat · Sun · Evenings—
8Total Secure Technology | Managed IT Services Company in Sacramento574.9★ (161)Sacramento, 4 mi awaySat · Sun · Evenings—
9Intelligent Technical Solutions | ITS575.0★ (5)Roseville, 17 mi awaySat · Sun · Evenings—
10Blackhawk MSP Computer Support and Services574.9★ (46)Danville, 64 mi awaySat · Sun—

The 177 best cybersecurity companies in Rosemont, 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 Rosemont

    #1 Tech 2U

    Based in Sacramento, 4 mi away

    62/100IFR Score

    Ranked #1 because of its Google rating and review volume: 4.9★ from 2,167 Google reviews, the most in Rosemont.

    • 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
    View profile for Tech 2U(916) 225-8324

  3. #3 Parachute Technology

    Based in Sacramento, 3 mi away

    59/100IFR Score

    Ranked #3 because of its Google rating and service focus: 5.0★ from 52 Google reviews, listed on Google as “Computer security service”.

    • 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
    View profile for Parachute Technology(916) 237-9310

  4. #4 MME Consulting, Inc.

    Based in Sacramento, 12 mi away

    58/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 46 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 46 Google reviews
    Hours
    Mon–Fri 5 AM–5 PM · Sat–Sun closed
    Address
    4714 Duckhorn Dr, Sacramento, CA 95834
    View profile for MME Consulting, Inc.(866) 419-1102

  5. #5 ER Tech Pros

    Based in Sacramento, 1 mi away

    58/100IFR Score

    Ranked #5 because of its Google rating and service focus: 4.2★ from 5 Google reviews, listed on Google as “Computer security service”.

    • 4.2★ from 5 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    8795 Folsom Blvd #205, Sacramento, CA 95826
    View profile for ER Tech Pros(855) 378-3241

  6. #6 Nerds On Call

    Based in Fair Oaks, 10 mi away

    58/100IFR Score

    Ranked #6 because of its Google rating and review volume: 4.8★ from 514 Google reviews.

    • 4.8★ from 514 Google reviews
    Hours
    Mon–Fri 8 AM–7 PM · Sat–Sun 9 AM–5 PM
    Address
    8510 Madison Ave c, Fair Oaks, CA 95628
    View profile for Nerds On Call(800) 919-6373

  13. #13 ArcSource Consulting

    Based in Albany, 68 mi away

    56/100IFR Score

    Ranked #13 because of its Google rating and service focus: 4.9★ from 19 Google reviews, listed on Google as “Computer security service”.

    • 4.9★ from 19 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1035 San Pablo Ave Ste 3, Albany, CA 94706
    View profile for ArcSource Consulting(510) 843-2010

  14. #14 GSDSolutions

    Based in Modesto, 66 mi away

    56/100IFR Score

    Ranked #14 because of its Google rating and service focus: 4.8★ from 18 Google reviews, listed on Google as “Computer security service”.

    • 4.8★ from 18 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    931 10th St Ste 610, Modesto, CA 95354
    View profile for GSDSolutions(209) 901-5556

  15. #15 SafeAeon Inc.

    Based in Pleasanton, 68 mi away

    55/100IFR Score

    Ranked #15 because of its Google rating and service focus: 4.7★ from 14 Google reviews, listed on Google as “Computer security service”.

    • 4.7★ from 14 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    6701 Koll Center Pkwy Ste 250, Pleasanton, CA 94566
    View profile for SafeAeon Inc.(855) 684-1313

  17. #17 FUSE3

    Based in Fair Oaks, 10 mi away

    55/100IFR Score

    Ranked #17 because of its Google rating and review volume: 5.0★ from 387 Google reviews.

    • 5.0★ from 387 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    11630 Fair Oaks Blvd, Fair Oaks, CA 95628
    View profile for FUSE3(916) 484-1780

  18. #18 Big Dogs Tech

    Based in Concord, 54 mi away

    55/100IFR Score

    Ranked #18 because of its Google rating and service focus: 4.6★ from 79 Google reviews, listed on Google as “Computer security service”.

    • 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
    View profile for Big Dogs Tech(925) 827-1200

  21. #21 IPTHUB Cyber Security Inc

    Based in Citrus Heights, 10 mi away

    54/100IFR Score

    Ranked #21 because of its Google rating and service focus: 5.0★ from 8 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 8 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    5750 Sunrise Blvd Ste 200-I, Citrus Heights, CA 95610
    View profile for IPTHUB Cyber Security Inc(844) 732-9377

  23. #23 TeamLogic IT

    Based in Sacramento, 8 mi away

    53/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 5 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    428 J St 4th Floor, Sacramento, CA 95814
    View profile for TeamLogic IT(916) 877-6060

How we ranked Rosemont cybersecurity companies

We scored 177 Rosemont 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 Rosemont 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 Rosemont: frequently asked questions

Who is the best cybersecurity company in Rosemont?

By IFR Score, the highest-ranked cybersecurity company in Rosemont, CA is Tech 2U with an IFR Score of 62/100. It has 4.9★ from 2,167 Google reviews. It is open 7 days a week. PC Professional Managed IT Services (#2) and Parachute Technology (#3) follow. We ranked 177 cybersecurity companies on nine factors, last updated November 9, 2026.

Which cybersecurity companies in Rosemont work on weekends?

57 of 177 ranked cybersecurity companies post Saturday hours and 48 post Sunday hours. The highest-ranked open Saturdays are Tech 2U (#1), PC Professional Managed IT Services (#2) and ER Tech Pros (#5). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Rosemont cybersecurity companies have?

The median Google rating among 177 rated cybersecurity companies in Rosemont is 5.0★, with a median of 13 reviews. Tech 2U has the most, 2,167 reviews, and ranks #1. 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 Rosemont count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 177 cybersecurity companies serving Rosemont.
  2. November 2026: 1 duplicate listing merged.

More cybersecurity companies and Rosemont pages