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Best Cybersecurity Companies in Simcoe, ON (2026)

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

The short answer

  1. 1

    Best overall in Simcoe: CyberNexGuard, IFR Score 66/100; 4.7★ from 755 Google reviews; open 7 days a week.

  2. 41

    Most-reviewed: SK Computers, 663 Google reviews at 4.7★, the most of 266 ranked after CyberNexGuard; ranked #41.

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

266 Simcoe cybersecurity companies are ranked here by IFR Score, from nine published factors. 93 open Saturdays and 63 open Sundays, based on posted hours. The median Google rating is 5.0★ across 266 rated IT firms.

Top 10 cybersecurity companies in Simcoe at a glance

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

Top 10 cybersecurity companies in Simcoe at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1CyberNexGuard664.7★ (755)Bradley Gardens, 97 km awaySat · Sun · EveningsOverall
2ACN TECHNOLOGY634.9★ (322)Brampton, 109 km awaySat · Sun · Evenings—
3OEIS - Digital Forensics624.5★ (187)Niagara Falls, 101 km awaySat · Sun · Evenings—
4Canary Trap615.0★ (81)Mississauga, 108 km awaySat · Sun · Evenings—
5Rhyno Cyber Security Services615.0★ (40)Kitchener, 71 km awaySat · Sun · Evenings—
6Synchroworks Consulting604.9★ (56)Brampton, 107 km awaySat · Sun · Evenings—
7Advanced Office Solutions Group604.9★ (152)Hamilton, 72 km away——
8Winfinite Consulting | Cybersecurity Consulting and Training Services605.0★ (59)Hamilton, 56 km awaySat—
9Plutosec Cyber Security Company605.0★ (49)Brampton, 116 km awaySat · Sun · Evenings—
10IT Z595.0★ (33)Ancaster, 98 km awaySat · Sun · Evenings—

The 266 best cybersecurity companies in Simcoe, 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 Simcoe

    Based in Bradley Gardens, 97 km away

    66/100IFR Score

    Ranked #1 because of its Google rating and review volume: 4.7★ from 755 Google reviews, the most in Simcoe.

    • 4.7★ from 755 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
  2. Based in Brampton, 109 km away

    63/100IFR Score

    Ranked #2 because of its Google rating and service focus: 4.9★ from 322 Google reviews, listed on Google as “Computer security service”.

    • 4.9★ from 322 Google reviews
    Hours
    Mon–Fri 9 AM–9 PM · Sat–Sun 9 AM–7 PM
    Address
    4 Kings Cross Rd, Brampton, ON L6T 3X8
  3. Based in Mississauga, 108 km away

    61/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 81 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 81 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    2425 Matheson Blvd E 8th Floor, Mississauga, ON L4W 5K4
  4. #10 IT Z

    Based in Ancaster, 98 km away

    59/100IFR Score

    Ranked #10 because of its Google rating and service focus: 5.0★ from 33 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 33 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
  5. Based in Kitchener, 69 km away

    58/100IFR Score

    Ranked #11 because of its Google rating and service focus: 4.8★ from 13 Google reviews, listed on Google as “Computer security service”.

    • 4.8★ from 13 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    50 Ottawa Street S #311, Kitchener, ON N2G 3S7
  6. Based in Oakville, 88 km away

    57/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 14 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 14 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1375 North Service Rd E #102, Oakville, ON L6H 1A7
  7. Based in Mississauga, 102 km away

    57/100IFR Score

    Ranked #14 because of its Google rating and service focus: 5.0★ from 79 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 79 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat–Sun closed
    Address
    2520 Haines Rd, Mississauga, ON L4Y 1Y6
  8. Based in Burlington, 75 km away

    57/100IFR Score

    Ranked #16 because of its Google rating and service focus: 4.9★ from 57 Google reviews, listed on Google as “Computer security service”.

    • 4.9★ from 57 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    5063 N Service Rd #200, Burlington, ON L7L 5H6
  9. Based in Waterloo, 78 km away

    57/100IFR Score

    Ranked #17 because of its Google rating and service focus: 4.8★ from 55 Google reviews, listed on Google as “Computer security service”.

    • 4.8★ from 55 Google reviews
    Hours
    Mon–Fri 8 AM–8 PM · Sat–Sun closed
    Address
    619 Kumpf Dr, Waterloo, ON N2V 1K8
  10. Based in Brampton, 107 km away

    57/100IFR Score

    Ranked #19 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
    5535 Eglinton Ave W #218, Etobicoke, ON M9C 5K5
  11. Based in Toronto, 117 km away

    56/100IFR Score

    Ranked #21 because of its Google rating and service focus: 5.0★ from 85 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 85 Google reviews
    Hours
    Mon–Fri 8:30 AM–5:30 PM · Sat–Sun closed
    Address
    100 King St W #56033, Toronto, ON M5X 1A9
  12. Based in Toronto, 118 km away

    56/100IFR Score

    Ranked #23 because of its Google rating and service focus: 5.0★ from 83 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 83 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    43 Britain St A01, Toronto, ON M5A 1R7
  13. Based in Mississauga, 97 km away

    56/100IFR Score

    Ranked #24 because of its Google rating and service focus: 5.0★ from 50 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 50 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    3464 Semenyk Ct Unit 101, Mississauga, ON L5C 4P8
  14. #25 Manawa

    Based in Mississauga, 100 km away

    56/100IFR Score

    Ranked #25 because of its Google rating and service focus: 5.0★ from 9 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 9 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    East Tower, 77 City Centre Dr Ste 501, Mississauga, ON L5B 1M5

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

cybersecurity companies in Simcoe, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Nuvollo564.4★ (14)108 km
27Smola Designs - Web Design, Logos, Marketing & More!565.0★ (114)66 km
28Outhouse IT565.0★ (27)66 km
29Humber Horizons Limited565.0★ (16)106 km
30MSP Corp (Formerly Stronghold I.T.)554.6★ (38)74 km
31eSentire Inc.554.6★ (43)75 km
32MIT Consulting Downtown - IT Consulting and Cybersecurity services554.9★ (11)118 km
33IT Solutions Canada554.9★ (131)77 km
34IT Solutions Canada Inc.555.0★ (5)58 km
35TCC Computers Inc.553.9★ (17)68 km
36Edgeworx Solutions - Toronto Managed IT Security Services Company554.8★ (8)116 km
37Security Assured545.0★ (9)102 km
38Cyberdyne Systems544.7★ (183)103 km
39IT Force545.0★ (72)72 km
40F12.net - Waterloo - Cambridge Managed IT Services Company544.9★ (17)65 km
41SK Computers544.7★ (663)105 km
42ITCP545.0★ (9)72 km
43Professional Computer Management Inc.545.0★ (337)68 km
44Tuor544.9★ (42)117 km
45Cyber Computer Shop544.5★ (140)76 km
46365 Data Centers543.4★ (10)116 km
47Quadbridge544.1★ (23)70 km
48Right Turn Security - Cyber Security Training | Ethical Hacking Learning Institute544.6★ (10)112 km
49ClayGen Consulting Inc.545.0★ (17)80 km
50Cyberia Hosting545.0★ (43)97 km

Also serving Simcoe

20 more cybersecurity companies within 121 km that we can't rank yet: too few reviews, or a service we couldn't confirm. Listed A to Z.

Unranked cybersecurity companies serving Simcoe
BusinessGoogle ratingDistance
ALT IT Support and Consulting Buffalo5.0★ (2)117 km
Centra Cyber Security5.0★ (2)77 km
CipherX Solutions5.0★ (2)106 km
ComplyTec5.0★ (2)99 km
CyberShieldCo5.0★ (2)115 km
DeepCove Cybersecurity5.0★ (2)116 km
evolutionQ4.5★ (2)70 km
GAM Tech5.0★ (2)119 km
Group 4 Networks5.0★ (2)97 km
Infinity Network Solutions Inc5.0★ (2)118 km
IT Networked Systems Inc5.0★ (2)117 km
Maes Computing5.0★ (1)11 km
Manawa3.0★ (2)112 km
PROSHRED® Buffalo5.0★ (2)116 km
SimcoeIT Computer ServicesIn Simcoe
Smart-Tek Inc.5.0★ (8)In Simcoe
Stanley Armour Inc.3.0★ (2)83 km
TechDesigns5.0★ (2)107 km
TechMaster Computer Service & Supply Inc.5.0★ (2)77 km
WorldPosta3.0★ (2)117 km

How we ranked Simcoe cybersecurity companies

We scored 266 Simcoe 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 Simcoe 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 Simcoe: frequently asked questions

Who is the best cybersecurity company in Simcoe?

By IFR Score, the highest-ranked cybersecurity company in Simcoe, ON is CyberNexGuard with an IFR Score of 66/100. It has 4.7★ from 755 Google reviews. It is open 7 days a week. ACN TECHNOLOGY (#2) and OEIS - Digital Forensics (#3) follow. We ranked 266 cybersecurity companies on nine factors, last updated November 9, 2026.

How many cybersecurity companies are there in Simcoe?

ITFirmsRanked ranks 266 cybersecurity companies serving Simcoe, ON. Another 20 within 121 km are listed but not ranked yet. Counts are as of November 2026.

Which cybersecurity companies in Simcoe work on weekends?

93 of 266 ranked cybersecurity companies post Saturday hours and 63 post Sunday hours. The highest-ranked open Saturdays are CyberNexGuard (#1), ACN TECHNOLOGY (#2) and OEIS - Digital Forensics (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Simcoe cybersecurity companies have?

The median Google rating among 266 rated cybersecurity companies in Simcoe is 5.0★, with a median of 15 reviews. CyberNexGuard has the most, 755 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 Simcoe count in this ranking?

Yes, if they are within 121 km of the Simcoe city centre, 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 Simcoe 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 Simcoe

  1. November 2026: IFR Scores recalculated for 266 cybersecurity companies serving Simcoe.