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Best Cybersecurity Companies in Mount Vernon, IL (2026)

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

The short answer

  1. 1

    Best overall in Mount Vernon: UNCOMN, IFR Score 56/100; 5.0★ from 15 Google reviews.

  2. 2

    Most-reviewed: Megabytes, 71 Google reviews at 4.9★, the most of 24 ranked; ranked #2.

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

24 Mount Vernon cybersecurity companies are ranked here by IFR Score, from nine published factors. 5 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.8★ across 24 rated IT firms.

Top 10 cybersecurity companies in Mount Vernon at a glance

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

Top 10 cybersecurity companies in Mount Vernon at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1UNCOMN565.0★ (15)Belleville, 55 mi away—Overall
2Megabytes564.9★ (71)Herrin, 36 mi away—Most reviews
3Kunce Computers, Inc - Managed IT Services and Support Company554.5★ (49)Mount Vernon——
4JK Computer Solutions - Managed IT Services & Support534.0★ (34)Mount Vernon——
5TierPoint St. Louis Olive Data Center534.8★ (26)St. Louis, 73 mi awaySat · Sun · Evenings—
6Computype IT Solutions534.8★ (65)Belleville, 62 mi away——
7H & H Computer Services524.5★ (25)Centralia, 20 mi away——
8Turnkey Computer Systems, Inc.515.0★ (32)Effingham, 58 mi away——
9TechGuard Security LLC514.0★ (4)O'Fallon, 56 mi away——
10Utilitra514.3★ (17)Edwardsville, 71 mi awaySat · Sun · Evenings—

The 24 best cybersecurity companies in Mount Vernon, 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 Mount Vernon

    #1 UNCOMN

    Based in Belleville, 55 mi away

    56/100IFR Score

    Ranked #1 because of its Google rating and service focus: 5.0★ from 15 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 15 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    735 Seibert Rd #1, Scott AFB, IL 62225
    View profile for UNCOMN(618) 744-9777

  2. #2 Megabytes

    Based in Herrin, 36 mi away

    56/100IFR Score

    Ranked #2 because of its Google rating and review volume: 4.9★ from 71 Google reviews, the most in Mount Vernon.

    • 4.9★ from 71 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    308 N 16th St, Herrin, IL 62948
    View profile for Megabytes(618) 559-2902

  9. #9 TechGuard Security LLC

    Based in O'Fallon, 56 mi away

    51/100IFR Score

    Ranked #9 because of its Google rating and service focus: 4.0★ from 4 Google reviews, listed on Google as “Computer security service”.

    • 4.0★ from 4 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    1722 Corporate Crossing #1, O'Fallon, IL 62269
    View profile for TechGuard Security LLC(636) 489-2230

  10. #10 Utilitra

    Based in Edwardsville, 71 mi away

    51/100IFR Score

    Ranked #10 because of its Google rating and review volume: 4.3★ from 17 Google reviews.

    • 4.3★ from 17 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    200 Lakefront Pkwy, Edwardsville, IL 62025
    View profile for Utilitra(618) 797-9001

  13. #13 Digicom LLC

    Based in Evansville, 71 mi away

    51/100IFR Score

    Ranked #13 because of its Google rating and review volume: 5.0★ from 37 Google reviews.

    • 5.0★ from 37 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    7624 Syls Dr, Evansville, IN 47712
    View profile for Digicom LLC(812) 437-2911

  14. #14 Mayer Networks

    Based in Carbondale, 44 mi away

    50/100IFR Score

    Ranked #14 because of its Google rating and review volume: 4.6★ from 25 Google reviews.

    • 4.6★ from 25 Google reviews
    Hours
    Mon–Fri 7 AM–5 PM · Sat–Sun closed
    Address
    304 E Walnut St, Carbondale, IL 62901
    View profile for Mayer Networks(618) 529-4922

  15. #15 Datotel

    Based in St. Louis, 73 mi away

    50/100IFR Score

    Ranked #15 because of its Google rating and review volume: 4.8★ from 11 Google reviews.

    • 4.8★ from 11 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    710 N Tucker Blvd Suite 400 , 63101, St. Louis, MO 63101
    View profile for Datotel(314) 241-9101

  18. #18 SDS Technology

    Based in Effingham, 56 mi away

    49/100IFR Score

    Ranked #18 because of its Google rating and review volume: 4.6★ from 20 Google reviews.

    • 4.6★ from 20 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    313 Professional Park Ave, Effingham, IL 62401
    View profile for SDS Technology(217) 347-5242

  19. #19 The 20 MSP

    Based in St. Louis, 74 mi away

    47/100IFR Score

    Ranked #19 because of its Google rating and service focus: 5.0★ from 5 Google reviews, listed on Google as “Computer support and services”.

    • 5.0★ from 5 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1820 Cherokee St Ste 201, St. Louis, MO 63118
    View profile for The 20 MSP(877) 344-9658

  20. #20 CyberFix, LLC

    Based in Herrin, 38 mi away

    47/100IFR Score

    Ranked #20 because of its Google rating and service focus: 3.0★ from 4 Google reviews, listed on Google as “Computer repair service”.

    • 3.0★ from 4 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    200 N Pershing St, Energy, IL 62933
    View profile for CyberFix, LLC(855) 242-9237

  22. #22 CDS Office Technologies

    Based in Marion, 40 mi away

    44/100IFR Score

    Ranked #22 because of its Google rating and service focus: 5.0★ from 4 Google reviews, listed on Google as “Computer support and services”.

    • 5.0★ from 4 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    3909 W Ernestine Ln, Marion, IL 62959
    View profile for CDS Office Technologies(618) 997-7756

  24. #24 Framitech LLC

    Based in Lyndon, 72 mi away

    41/100IFR Score

    Ranked #24 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Computer support and services”.

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    View profile for Framitech LLC(502) 284-8180

Also serving Mount Vernon

16 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 Mount Vernon
BusinessGoogle ratingDistance
Auuns IT69 mi
BAT Consulting LLC48 mi
CyberShelt LLC58 mi
Ellegent Systems5.0★ (2)58 mi
Forensic IT, Inc.67 mi
Glen's Tech Support for Computers5.0★ (1)65 mi
Harpy I.T. Solutions LLC1.0★ (1)74 mi
Hubtech Inc5.0★ (6)In Mount Vernon
Ironclasp IT Solutions75 mi
Kemper Technology ConsultingIn Mount Vernon
Konica Minolta Business Solutions40 mi
Kt Sky Solutions5.0★ (2)59 mi
Pinnacle Electronic Systems Inc60 mi
Quality Network SolutionsIn Mount Vernon
The PC Cruiser LLC5.0★ (1)65 mi
Urban Technologies LLC50 mi

How we ranked Mount Vernon cybersecurity companies

We scored 24 Mount Vernon 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 Mount Vernon 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 Mount Vernon: frequently asked questions

Who is the best cybersecurity company in Mount Vernon?

By IFR Score, the highest-ranked cybersecurity company in Mount Vernon, IL is UNCOMN with an IFR Score of 56/100. It has 5.0★ from 15 Google reviews. Megabytes (#2) and Kunce Computers, Inc - Managed IT Services and Support Company (#3) follow. We ranked 24 cybersecurity companies on nine factors, last updated November 9, 2026.

How many cybersecurity companies are there in Mount Vernon?

ITFirmsRanked ranks 24 cybersecurity companies serving Mount Vernon, IL. 2 of them are based in Mount Vernon; the rest serve it from nearby towns. Another 16 within 75 mi are listed but not ranked yet. Counts are as of November 2026.

Which cybersecurity companies in Mount Vernon work on weekends?

5 of 24 ranked cybersecurity companies post Saturday hours and 5 post Sunday hours. The highest-ranked open Saturdays are TierPoint St. Louis Olive Data Center (#5), Utilitra (#10) and Datotel (#15). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Mount Vernon cybersecurity companies have?

The median Google rating among 24 rated cybersecurity companies in Mount Vernon is 4.8★, with a median of 20 reviews. Megabytes has the most, 71 reviews, and ranks #2. 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 Mount Vernon count in this ranking?

Yes, if they are within 75 mi of the Mount Vernon 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 Mount Vernon 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 Mount Vernon

  1. November 2026: IFR Scores recalculated for 24 cybersecurity companies serving Mount Vernon.

More cybersecurity companies and Mount Vernon pages