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Best Cybersecurity Companies in Cambridge, MA (2026)

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

The short answer

  1. 1

    Best overall in Cambridge: Tech Advisors Managed IT Services, IFR Score 63/100; 5.0★ from 127 Google reviews.

  2. 17

    Most-reviewed: WangPC Computer Service, 400 Google reviews at 4.7★, the most of 257 ranked; ranked #17.

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

257 Cambridge cybersecurity companies are ranked here by IFR Score, from nine published factors. 77 open Saturdays and 53 open Sundays, based on posted hours. The median Google rating is 5.0★ across 257 rated IT firms.

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

Top 10 cybersecurity companies in Cambridge at a glance

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

Top 10 cybersecurity companies in Cambridge at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Tech Advisors Managed IT Services635.0★ (127)Boston, 3 mi away—Overall
2Techfusion Digital Forensics & Data Recovery624.4★ (39)CambridgeSat · Sun · Evenings—
3TOSS C3 - Cybersecurity, Cloud Computing, Co-Managed IT & Information Security615.0★ (23)Framingham Center, 24 mi awaySat · Sun · Evenings—
4Daystar615.0★ (11)Boston, 3 mi awaySat · Sun · Evenings—
5Prior IT615.0★ (62)Boston, 7 mi away——
6New England Network Solutions604.1★ (13)Boston, 2 mi awaySat · Sun · Evenings—
7AGR Technologies Inc.604.7★ (39)Grafton, 29 mi awaySat · Sun—
8BCS365603.9★ (19)Rockland, 18 mi awaySat · Sun · Evenings—
9First Class Networks595.0★ (38)Woburn, 8 mi away——
10Network Professional Training Center-NPTC595.0★ (46)Worcester, 39 mi awaySat—

The 257 best cybersecurity companies in Cambridge, 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.

  4. #4 Daystar

    Based in Boston, 3 mi away

    61/100IFR Score

    Ranked #4 because of its Google rating and service focus: 5.0★ from 11 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 11 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    68 Harrison Ave Ste 640, Boston, MA 02111
    View profile for Daystar(888) 507-8067

  5. #5 Prior IT

    Based in Boston, 7 mi away

    61/100IFR Score

    Ranked #5 because of its Google rating and service focus: 5.0★ from 62 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 62 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    1208 VFW Pkwy, Boston, MA 02132
    View profile for Prior IT(781) 228-0042

  7. #7 AGR Technologies Inc.

    Based in Grafton, 29 mi away

    60/100IFR Score

    Ranked #7 because of its Google rating and service focus: 4.7★ from 39 Google reviews, listed on Google as “Computer security service”.

    • 4.7★ from 39 Google reviews
    Hours
    Mon–Thu 9 AM–6 PM · Fri 8:30 AM–6 PM · Sat 9 AM–4 PM · Sun 9 AM–1:30 PM
    Address
    300 W Main St A4, Northborough, MA 01532
    View profile for AGR Technologies Inc.(508) 422-9800

  8. #8 BCS365

    Based in Rockland, 18 mi away

    60/100IFR Score

    Ranked #8 because of its Google rating and service focus: 3.9★ from 19 Google reviews, listed on Google as “Computer security service”.

    • 3.9★ from 19 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    1050 Hingham St 3rd floor, Rockland, MA 02370
    View profile for BCS365(781) 871-0700

  9. #9 First Class Networks

    Based in Woburn, 8 mi away

    59/100IFR Score

    Ranked #9 because of its Google rating and service focus: 5.0★ from 38 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 38 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    500 W Cummings Park, Woburn, MA 01801
    View profile for First Class Networks(617) 468-3929

  11. #11 Roan Solutions

    Based in Cambridge

    59/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 25 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 25 Google reviews
    Hours
    Mon–Fri 8:30 AM–5:30 PM · Sat–Sun closed
    Address
    185 Alewife Brook Pkwy Unit 414, Cambridge, MA 02138
    View profile for Roan Solutions(617) 517-6444

  13. #13 Eagle Network Solutions

    Based in Bedford, 45 mi away

    58/100IFR Score

    Ranked #13 because of its Google rating and service focus: 5.0★ from 70 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 70 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    80 Palomino Ln STE 202, Bedford, NH 03110
    View profile for Eagle Network Solutions(603) 782-0700

  14. #14 Northeast Data Group

    Based in Burlington, 9 mi away

    58/100IFR Score

    Ranked #14 because of its Google rating and service focus: 5.0★ from 21 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 21 Google reviews
    Hours
    Mon–Fri 7 AM–7 PM · Sat–Sun closed
    Address
    1500 District Ave, Burlington, MA 01803
    View profile for Northeast Data Group(617) 430-4725

  15. #15 Privafy, Inc.

    Based in Burlington, 9 mi away

    58/100IFR Score

    Ranked #15 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Computer security service”.

    • 5.0★ from 3 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    2 Burlington Woods Dr Ste 200, Burlington, MA 01803
    View profile for Privafy, Inc.(781) 342-1077

  20. #20 WangPC Computer Service

    Based in Boston, 5 mi away

    57/100IFR Score

    Ranked #20 because of its Google rating and review volume: 5.0★ from 102 Google reviews.

    • 5.0★ from 102 Google reviews
    Hours
    Mon 12 AM–12 AM · Tue 7 AM–10 AM · Wed–Fri 7 AM–10 PM · Sat 12 AM–12 AM · Sun closed
    Address
    305 Commonwealth Ave, Chestnut Hill, MA 02467
    View profile for WangPC Computer Service(617) 398-7758

  23. #23 Bitsight

    Based in Boston, 2 mi away

    57/100IFR Score

    Ranked #23 because of its Google rating and service focus: 4.3★ from 20 Google reviews, listed on Google as “Computer security service”.

    • 4.3★ from 20 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    111 Huntington Ave, Boston, MA 02199
    View profile for Bitsight(617) 245-0469

  24. #24 Daymark Solutions, Inc.

    Based in Burlington, 10 mi away

    57/100IFR Score

    Ranked #24 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 8:30 AM–5:30 PM · Sat–Sun closed
    Address
    131 Middlesex Turnpike, Burlington, MA 01803
    View profile for Daymark Solutions, Inc.(781) 359-3000

  25. #25 Dynamic Computers

    Based in Medford, 4 mi away

    57/100IFR Score

    Ranked #25 because of its Google rating and review volume: 4.9★ from 213 Google reviews.

    • 4.9★ from 213 Google reviews
    Hours
    Mon–Tue 9:30 AM–4 PM · Wed–Thu 9:30 AM–6 PM · Fri 9:30 AM–4 PM · Sat 10 AM–1 PM · Sun closed
    Address
    457 High St, Medford, MA 02155
    View profile for Dynamic Computers(781) 333-4119

How we ranked Cambridge cybersecurity companies

We scored 257 Cambridge 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 Cambridge 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 Cambridge: frequently asked questions

Who is the best cybersecurity company in Cambridge?

By IFR Score, the highest-ranked cybersecurity company in Cambridge, MA is Tech Advisors Managed IT Services with an IFR Score of 63/100. It has 5.0★ from 127 Google reviews. Techfusion Digital Forensics & Data Recovery (#2) and TOSS C3 - Cybersecurity, Cloud Computing, Co-Managed IT & Information Security (#3) follow. We ranked 257 cybersecurity companies on nine factors, last updated November 9, 2026.

How many cybersecurity companies are there in Cambridge?

ITFirmsRanked ranks 257 cybersecurity companies serving Cambridge, MA. 2 of them are based in Cambridge; the rest serve it from nearby towns. Counts are as of November 2026.

Which cybersecurity companies in Cambridge work on weekends?

77 of 257 ranked cybersecurity companies post Saturday hours and 53 post Sunday hours. The highest-ranked open Saturdays are Techfusion Digital Forensics & Data Recovery (#2), TOSS C3 - Cybersecurity, Cloud Computing, Co-Managed IT & Information Security (#3) and Daystar (#4). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Cambridge cybersecurity companies have?

The median Google rating among 257 rated cybersecurity companies in Cambridge is 5.0★, with a median of 13 reviews. WangPC Computer Service has the most, 400 reviews, and ranks #17. 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 Cambridge count in this ranking?

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

  1. November 2026: IFR Scores recalculated for 257 cybersecurity companies serving Cambridge.
  2. November 2026: 4 duplicate listings merged.

More cybersecurity companies and Cambridge pages