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Best Cybersecurity Companies in Alliston, ON (2026)

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

The short answer

  1. 1

    Best overall in Alliston: ACN TECHNOLOGY, IFR Score 66/100; 4.9★ from 322 Google reviews; open 7 days a week.

  2. 12

    Most-reviewed: Sazan Consulting inc, 254 Google reviews at 4.3★, the most of 348 ranked after ACN TECHNOLOGY; ranked #12.

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

348 Alliston cybersecurity companies are ranked here by IFR Score, from nine published factors. 113 open Saturdays and 75 open Sundays, based on posted hours. The median Google rating is 5.0★ across 348 rated IT firms.

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

Top 10 cybersecurity companies in Alliston at a glance

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

Top 10 cybersecurity companies in Alliston at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1ACN TECHNOLOGY664.9★ (322)Brampton, 49 km awaySat · Sun · EveningsOverall
2Canary Trap645.0★ (81)Mississauga, 59 km awaySat · Sun · Evenings—
3Ferro Technics Inc.| Cyber Security Consulting and Training Services634.9★ (136)East York, 64 km awaySat · Sun · Evenings—
4Certified Nerds635.0★ (74)Pickering, 67 km awaySat · Sun · Evenings—
5Plutosec Cyber Security Company635.0★ (49)Brampton, 50 km awaySat · Sun · Evenings—
6Synchroworks Consulting624.9★ (56)Brampton, 62 km awaySat · Sun · Evenings—
7IT Z625.0★ (33)Ancaster, 54 km awaySat · Sun · Evenings—
8BlueBird iT Solutions Inc - A WELLSTAR Company624.9★ (112)North York, 57 km awaySat—
9F12.net614.9★ (160)Markham, 50 km away——
10Code Maximus615.0★ (34)Vaughan, 40 km awaySat · Sun · Evenings—

The 348 best cybersecurity companies in Alliston, 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 Alliston

    #1 ACN TECHNOLOGY

    Based in Brampton, 49 km away

    66/100IFR Score

    Ranked #1 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
    View profile for ACN TECHNOLOGY(647) 504-8325

  2. #2 Canary Trap

    Based in Mississauga, 59 km away

    64/100IFR Score

    Ranked #2 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
    View profile for Canary Trap(844) 750-2018

  4. #4 Certified Nerds

    Based in Pickering, 67 km away

    63/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 74 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 74 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    250 Finch Ave, Pickering, ON L1V 0G6
    View profile for Certified Nerds(437) 219-9724

  7. #7 IT Z

    Based in Ancaster, 54 km away

    62/100IFR Score

    Ranked #7 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
    View profile for IT Z(289) 635-2996

  9. #9 F12.net

    Based in Markham, 50 km away

    61/100IFR Score

    Ranked #9 because of its Google rating and service focus: 4.9★ from 160 Google reviews, listed on Google as “Computer security service”.

    • 4.9★ from 160 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    220 Markland St Unit A-2, Markham, ON L6C 1T6
    View profile for F12.net(866) 488-0422

  10. #10 Code Maximus

    Based in Vaughan, 40 km away

    61/100IFR Score

    Ranked #10 because of its Google rating and service focus: 5.0★ from 34 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 34 Google reviews
    Hours
    Mon–Sun 9 AM–10 PM
    View profile for Code Maximus(416) 984-4043

  12. #12 Sazan Consulting inc

    Based in Markham, 63 km away

    60/100IFR Score

    Ranked #12 because of its Google rating and service focus: 4.3★ from 254 Google reviews, listed on Google as “Computer security service”.

    • 4.3★ from 254 Google reviews
    Hours
    Mon–Fri 10 AM–5 PM · Sat 9 AM–5 PM · Sun closed
    Address
    421 Nugget Ave Unit 4A, Scarborough, ON M1S 4L8
    View profile for Sazan Consulting inc(647) 313-1970

  13. #13 IT Rapid Support Inc.

    Based in North York, 49 km away

    60/100IFR 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
    7810 Keele St, Concord, ON L4K 0B7
    View profile for IT Rapid Support Inc.(289) 582-9930

  14. #14 Genieall

    Based in Brampton, 59 km away

    59/100IFR Score

    Ranked #14 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
    View profile for Genieall(866) 214-7863

  15. #15 Adeptivity IT Solutions

    Based in Mississauga, 65 km away

    59/100IFR Score

    Ranked #15 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
    View profile for Adeptivity IT Solutions(866) 573-4754

  16. #16 System Architects Inc.

    Based in Toronto, 68 km away

    59/100IFR Score

    Ranked #16 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
    View profile for System Architects Inc.(416) 226-3240

  17. #17 Securicore

    Based in Toronto, 68 km away

    59/100IFR Score

    Ranked #17 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
    View profile for Securicore(416) 444-7530

  21. #21 Difenda

    Based in Oakville, 76 km away

    58/100IFR Score

    Ranked #21 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
    View profile for Difenda(866) 252-2103

  22. #22 Nuvollo

    Based in Etobicoke, 61 km away

    58/100IFR Score

    Ranked #22 because of its Google rating and service focus: 4.4★ from 14 Google reviews, listed on Google as “Computer security service”.

    • 4.4★ from 14 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    16 Four Seasons Pl Ste 100, Etobicoke, ON M9B 6E5
    View profile for Nuvollo(416) 365-6588

How we ranked Alliston cybersecurity companies

We scored 348 Alliston 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 Alliston 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 Alliston: frequently asked questions

Who is the best cybersecurity company in Alliston?

By IFR Score, the highest-ranked cybersecurity company in Alliston, ON is ACN TECHNOLOGY with an IFR Score of 66/100. It has 4.9★ from 322 Google reviews. It is open 7 days a week. Canary Trap (#2) and Ferro Technics Inc.| Cyber Security Consulting and Training Services (#3) follow. We ranked 348 cybersecurity companies on nine factors, last updated November 9, 2026.

Which cybersecurity companies in Alliston work on weekends?

113 of 348 ranked cybersecurity companies post Saturday hours and 75 post Sunday hours. The highest-ranked open Saturdays are ACN TECHNOLOGY (#1), Canary Trap (#2) and Ferro Technics Inc.| Cyber Security Consulting and Training Services (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Alliston cybersecurity companies have?

The median Google rating among 348 rated cybersecurity companies in Alliston is 5.0★, with a median of 14 reviews. ACN TECHNOLOGY has the most, 322 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 Alliston count in this ranking?

Yes, if they are within 121 km of the Alliston 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 Alliston 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 Alliston

  1. November 2026: IFR Scores recalculated for 348 cybersecurity companies serving Alliston.
  2. November 2026: 1 duplicate listing merged.

More cybersecurity companies and Alliston pages