65/100IFR Score
Ranked #1 because of its Google rating and service focus: 5.0★ from 346 Google reviews, listed on Google as “Computer security service”.
Best Cybersecurity Companies in New Haven, CT (2026)
553 cybersecurity companies ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in New Haven: Systech MSP, IFR Score 65/100; 5.0★ from 346 Google reviews; open 7 days a week.
- 22
Most-reviewed: Computuners - Computer Services, 808 Google reviews at 5.0★, the most of 553 ranked; ranked #22.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
553 New Haven cybersecurity companies are ranked here by IFR Score, from nine published factors. 229 open Saturdays and 170 open Sundays, based on posted hours. The median Google rating is 5.0★ across 553 rated IT firms.
Most of this list also appears on the Cybersecurity companies in Bridgeport ranking. See Cybersecurity companies in Bridgeport
Top 10 cybersecurity companies in New Haven at a glance
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
| Rank | Business | IFR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Systech MSP | 65 | 5.0★ (346) | Brooklyn, 69 mi away | Sat · Sun · Evenings | Overall |
| 2 | eMazzanti Technologies | 63 | 4.9★ (216) | Hoboken, 70 mi away | Sat · Sun · Evenings | — |
| 3 | Dental Hi-Tech Management, Inc | 63 | 5.0★ (102) | Douglaston, 51 mi away | Sat · Sun · Evenings | — |
| 4 | FileShred | 62 | 5.0★ (112) | Glastonbury, 31 mi away | Sat | — |
| 5 | Total Defense | 62 | 4.9★ (250) | Hauppauge, 37 mi away | — | — |
| 6 | CTS | 60 | 5.0★ (31) | Melville, 45 mi away | Sat · Sun · Evenings | — |
| 7 | Protected Harbor | 60 | 4.9★ (47) | Greenburgh, 56 mi away | Sat · Sun · Evenings | — |
| 8 | Lynx Systems | 60 | 5.0★ (15) | Bristol, 24 mi away | Sat · Sun · Evenings | — |
| 9 | Power Consulting Group - NYC Managed IT Services Company | 60 | 4.8★ (63) | New York City, 68 mi away | Sat · Sun · Evenings | — |
| 10 | TEKConn Services Inc. | 60 | 5.0★ (49) | New York City, 67 mi away | Sat · Sun · Evenings | — |
The 553 best cybersecurity companies in New Haven, 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.
Based in Hoboken, 70 mi away
63/100IFR ScoreRanked #2 because of its Google rating and service focus: 4.9★ from 216 Google reviews, listed on Google as “Computer security service”.
Based in Douglaston, 51 mi away
63/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 102 Google reviews, listed on Google as “Computer security service”.
#4 FileShred
Based in Glastonbury, 31 mi away
62/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 112 Google reviews, listed on Google as “Computer security service”.
Based in Hauppauge, 37 mi away
62/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.9★ from 250 Google reviews, listed on Google as “Computer security service”.
#6 CTS
Based in Melville, 45 mi away
60/100IFR ScoreRanked #6 because of its Google rating and service focus: 5.0★ from 31 Google reviews, listed on Google as “Computer security service”.
Based in Greenburgh, 56 mi away
60/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.9★ from 47 Google reviews, listed on Google as “Computer security service”.
#8 Lynx Systems
Based in Bristol, 24 mi away
60/100IFR ScoreRanked #8 because of its Google rating and service focus: 5.0★ from 15 Google reviews, listed on Google as “Computer security service”.
Based in New York City, 68 mi away
60/100IFR ScoreRanked #9 because of its Google rating and service focus: 4.8★ from 63 Google reviews, listed on Google as “Computer security service”.
Based in New York City, 67 mi away
60/100IFR ScoreRanked #10 because of its Google rating and service focus: 5.0★ from 49 Google reviews, listed on Google as “Computer security service”.
Based in Southbury, 16 mi away
59/100IFR ScoreRanked #11 because of its Google rating and service focus: 5.0★ from 16 Google reviews, listed on Google as “Computer security service”.
#12 The NetSys Group
Based in Bath Beach, 21 mi away
59/100IFR ScoreRanked #12 because of its Google rating and service focus: 5.0★ from 32 Google reviews, listed on Google as “Computer security service”.
Based in Douglaston, 27 mi away
59/100IFR ScoreRanked #13 because of its Google rating and service focus: 5.0★ from 65 Google reviews, listed on Google as “Computer security service”.
Based in Glen Rock, 68 mi away
59/100IFR ScoreRanked #14 because of its Google rating and review volume: 5.0★ from 216 Google reviews.
Based in New York City, 67 mi away
59/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.9★ from 182 Google reviews, listed on Google as “Computer security service”.
#16 CyberPro USA
Based in Belleville, 74 mi away
59/100IFR ScoreRanked #16 because of its Google rating and review volume: 4.9★ from 572 Google reviews.
#17 Motiva Networks
Based in Garden City, 54 mi away
59/100IFR ScoreRanked #17 because of its Google rating and review volume: 5.0★ from 526 Google reviews.
Based in Douglaston, 50 mi away
59/100IFR ScoreRanked #18 because of its Google rating and service focus: 4.9★ from 118 Google reviews, listed on Google as “Computer security service”.
#19 CoTech Networks
Based in East Patchogue, 28 mi away
59/100IFR ScoreRanked #19 because of its Google rating and service focus: 5.0★ from 16 Google reviews, listed on Google as “Computer security service”.
#20 Eretmis Academy
Based in Astoria, 61 mi away
58/100IFR ScoreRanked #20 because of its Google rating and service focus: 5.0★ from 120 Google reviews, listed on Google as “Computer security service”.
Based in Madison, 15 mi away
58/100IFR ScoreRanked #21 because of its Google rating and service focus: 5.0★ from 34 Google reviews, listed on Google as “Computer security service”.
Based in Nanuet, 58 mi away
58/100IFR ScoreRanked #22 because of its Google rating and review volume: 5.0★ from 808 Google reviews, the most in New Haven.
Based in New York City, 68 mi away
58/100IFR ScoreRanked #23 because of its Google rating and service focus: 5.0★ from 22 Google reviews, listed on Google as “Computer security service”.
#24 MrTechPro
Based in Mastic, 35 mi away
58/100IFR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 399 Google reviews.
Based in Westbury, 50 mi away
58/100IFR ScoreRanked #25 because of its Google rating and service focus: 5.0★ from 39 Google reviews, listed on Google as “Computer security service”.
How we ranked New Haven cybersecurity companies
We scored 553 New Haven 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.
| Factor | Weight | Computed from | In New Haven data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Review volume | 15% | Number of Google reviews, compared with the most-reviewed IT firm on the list | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday and 24/7 support | Measured |
| Service focus | 15% | How clearly the firm does this service (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The firm has claimed its IT Firms Ranked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The firm links to IT Firms Ranked from its own website with our badge, checked periodically | Measured |
| Client reviews | 10% | Verified client reviews collected by IT Firms Ranked: their rating and how many there are | Measured |
How to choose a cybersecurity company
- Ask whether monitoring is staffed around the clock by the firm itself or by a partner.
- Ask for a sample assessment or penetration-test report with client details removed.
- Check experience with your industry’s rules (for example HIPAA, PCI DSS or CMMC).
- Ask what the firm does in the first hour of an incident, and whether that is in the contract.
- Ask for two or three references from clients of your size and industry, and call them.
- 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 New Haven: frequently asked questions
Who is the best cybersecurity company in New Haven?
By IFR Score, the highest-ranked cybersecurity company in New Haven, CT is Systech MSP with an IFR Score of 65/100. It has 5.0★ from 346 Google reviews. It is open 7 days a week. eMazzanti Technologies (#2) and Dental Hi-Tech Management, Inc (#3) follow. We ranked 553 cybersecurity companies on nine factors, last updated November 9, 2026.
How many cybersecurity companies are there in New Haven?
ITFirmsRanked ranks 553 cybersecurity companies serving New Haven, CT. Counts are as of November 2026.
Which cybersecurity companies in New Haven work on weekends?
229 of 553 ranked cybersecurity companies post Saturday hours and 170 post Sunday hours. The highest-ranked open Saturdays are Systech MSP (#1), eMazzanti Technologies (#2) and Dental Hi-Tech Management, Inc (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do New Haven cybersecurity companies have?
The median Google rating among 553 rated cybersecurity companies in New Haven is 5.0★, with a median of 16 reviews. Computuners - Computer Services has the most, 808 reviews, and ranks #22. 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 New Haven count in this ranking?
Yes, if they are within 75 mi of the New Haven 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 New Haven 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 New Haven
- November 2026: IFR Scores recalculated for 553 cybersecurity companies serving New Haven.
- November 2026: 2 duplicate listings merged.
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