Top cybersecurity firms in Pennsylvania, ranked by ChatGPT answers

Places ChatGPT showed

• Security Risk Advisors · 5.0★ · Computer security service
• SEVNX · 5.0★ · IT security service
• Seiso | Cybersecurity Compliance Specialists · 5.0★ · Computer security service
• Appalachia Technologies LLC · 4.9★ · Computer security service
• Proper Sky - Managed IT Services · 5.0★ · Computer support and services
• Wolf Consulting | Pittsburgh Managed IT, Cybersecurity & IT Support Services · 5.0★ · Computer support and services
• radius180 - Philadelphia Managed IT Services Company · 5.0★ · Computer support and services
• IT Service ArchiTechs - Managed IT Services & Cybersecurity Protection · 5.0★ · Computer support and services

If by “best” you mean strong candidates worth evaluating, rather than a universal ranking, Pennsylvania has several firms that stand out for different cybersecurity needs.

Notable Pennsylvania cybersecurity firms

• Security Risk Advisors — Philadelphia
  A cybersecurity specialist focused on offensive security, defensive engineering, security assessments, resilience, and managed security/SOC services. This is one of the more security-specialized options rather than a general IT provider.
• SEVNX — King of Prussia
  Boutique cybersecurity firm specializing in vCISO/advisory work, offensive security testing, and incident response. A potentially good fit when you need specialized security expertise rather than general IT outsourcing.
• Seiso — Warrendale/Pittsburgh area
  Particularly focused on cybersecurity compliance and helping organizations become audit-ready. Relevant for regulated organizations and compliance-heavy environments.
• Appalachia Technologies LLC — Mechanicsburg
  Combines managed IT, cybersecurity, and compliance/GRC, with particular emphasis on SMBs and regulated organizations. Its public profile also highlights CMMC-related work.
• Proper Sky — Abington
  Managed cybersecurity/IT provider offering security monitoring, vulnerability management, incident response, security training, and Zero Trust-oriented services. Clutch currently lists it among Philadelphia-area cybersecurity providers.
• Wolf Consulting — Monroeville/Pittsburgh
  A Pittsburgh-area MSP with managed cybersecurity and compliance-oriented security services, particularly aimed at small and midsize organizations.
• radius180 — Philadelphia
  Managed IT and cybersecurity provider offering 24/7 monitoring/response, vulnerability management, endpoint/network protection, and security awareness services.
• IT Service ArchiTechs — Springfield
  SMB-focused managed IT and cybersecurity provider with security, compliance, cloud, and business-continuity capabilities.

How I'd narrow the field

Independent review directories also currently identify firms such as Proper Sky, Infracore, Foresite Cybersecurity, and others among Philadelphia-area cybersecurity providers; however, directory rankings can include paid/featured placements, so I wouldn't treat those lists as definitive.

If you tell me what kind of cybersecurity you need (e.g. penetration testing, MDR/SOC, CMMC, HIPAA, incident response, vCISO, or cybersecurity for a small business), I can narrow this to 3–5 Pennsylvania firms that specifically fit that use case, including approximate company size, specialties, and pricing where publicly available.

Places ChatGPT showed

• Wolf Consulting | Pittsburgh Managed IT, Cybersecurity & IT Support Services · 5.0★ · Computer support and services
• Midnight Blue Technology Services · 4.9★ · Computer support and services
• IT Service ArchiTechs - Managed IT Services & Cybersecurity Protection · 5.0★ · Computer support and services
• Plus 1 Technology · 5.0★ · Computer support and services
• Appalachia Technologies LLC · 4.9★ · Computer security service
• EZ Micro Solutions · 4.9★ · Computer support and services
• Mercer Bucks Technology · 5.0★ · Computer support and services
• Proper Sky - Managed IT Services · 5.0★ · Computer support and services

If you mean Pennsylvania-based providers that are a good fit for SMBs, rather than large enterprise-only cybersecurity consultancies, I’d put these on a shortlist. I’m not treating “best” as an objective ranking; the right choice depends heavily on company size, industry, compliance needs, and whether you want cybersecurity alone or a full managed-IT partner.

A few particularly interesting options

Open Tier Systems is worth considering if you're in Eastern Pennsylvania. It specifically markets managed cybersecurity to small and midsize businesses and says it supports nearly 200 businesses and about 2,200 endpoints, with both remote and onsite capabilities.

3rd Element Consulting is another good one to investigate if you're in Central PA or have compliance-heavy operations. It targets organizations of roughly 25–250 employees and combines managed IT, cybersecurity, governance/compliance, cyber-insurance readiness and vCIO services.

For comparison, current Pennsylvania MSP listings show Proper Sky, Reboot, Integritek, Net at Work and IT GOAT among providers serving Pennsylvania with substantial managed-IT/cybersecurity offerings.

What I'd compare before signing

For an SMB, I wouldn't choose based primarily on a review score. Ask each firm for:

• 24/7 monitoring vs. business-hours monitoring
• Whether they provide MDR/SOC services or simply resell endpoint software
• EDR/XDR, email security, MFA and identity protection
• Managed patching and vulnerability management
• Immutable/offline backup and ransomware recovery
• Security-awareness training and phishing simulations
• Incident-response procedures and whether response is included in the monthly fee
• Cyber-insurance support
• HIPAA, PCI, SOC 2, CMMC or other compliance experience if applicable
• Exact per-user/per-device monthly pricing and what costs extra
• Whether you get a dedicated security contact and how quickly incidents are escalated

There are also specialist cybersecurity firms in PA—rather than general MSPs—for penetration testing, incident response, digital forensics, and security assessments. For example, Clutch currently lists SEVN-X, viLogics, Clone Systems, InnoTek and AccessIT Group among Pennsylvania cybersecurity-focused providers.

If you tell me your Pennsylvania city/region, number of employees, industry, and approximate monthly cybersecurity budget, I can narrow this to 3–5 firms that fit your situation and compare their services, pricing signals, and reviews.

Places ChatGPT showed

• SecureStrux · 5.0★ · Computer security service
• I.S. Partners, LLC · 5.0★ · Certified public accountant
• Appalachia Technologies LLC · 4.9★ · Computer security service
• United GRC · Consultant
• Seiso | Cybersecurity Compliance Specialists · 5.0★ · Computer security service

If you mean Pennsylvania-based firms with meaningful CMMC and federal/government compliance capability, several stand out based on their documented services and current CMMC roles. I’d separate official assessment organizations (C3PAOs) from firms that primarily do readiness/implementation, because a company that prepares you generally cannot also perform your independent assessment.

Pennsylvania firms to consider

• SecureStrux — Lancaster
• Authorized C3PAO, so it can conduct official CMMC assessments.
• Strong DoD/federal cybersecurity background and offers compliance engineering in addition to assessment services.
• Particularly relevant if you need CMMC alongside broader federal cybersecurity requirements.
• I.S. Partners, LLC — Dresher / Philadelphia area
• Authorized C3PAO with experience spanning CMMC, NIST, SOC, ISO 27001 and other compliance frameworks.
• Interesting option if your organization needs CMMC plus broader audit/assurance and regulatory compliance.
• McKonly & Asbury — Camp Hill
• Authorized C3PAO and one of the earlier organizations authorized in the CMMC ecosystem.
• Its background includes NIST 800-53/800-171 and extensive SOC audit experience.
• Worth considering for organizations wanting an established accounting/advisory firm combined with cybersecurity compliance.
• Schneider Downs — Pittsburgh / Philadelphia
• Authorized C3PAO and offers CMMC readiness, gap assessment, mock-audit and certification services.
• It specifically describes experience with DFARS 7021 and the DoD defense industrial base.
• Its broader audit, risk and IT advisory capabilities can be useful if CMMC is part of a larger government-compliance program.
• Appalachia Technologies LLC — Mechanicsburg
• CMMC RPO/readiness provider rather than the organization you would use for your independent certification assessment.
• Offers readiness assessments, SSP/POA&M work, penetration testing and managed IT/security.
• Potentially attractive for a small/midsize contractor that needs implementation + ongoing IT/security support, not just an audit.
• United GRC — York
• Focuses heavily on GRC and government frameworks, including CMMC, NIST 800-171/800-53, FedRAMP, CJIS and FISMA/RMF.
• This could make it more relevant when CMMC is one component of a broader federal compliance program.
• Seiso | Cybersecurity Compliance Specialists — Warrendale / Pittsburgh area
• Cybersecurity compliance consultancy with CMMC/NIST-related readiness services and broader ISO/SOC/HIPAA compliance experience.
• More relevant for readiness and compliance program development than simply hiring an assessor.

How I'd narrow the field

Rather than treating "best" as a single ranking, I'd match the firm to what you actually need:

One important point: verify the firm's current C3PAO/RPO status directly through The Cyber AB before signing, because CMMC authorizations and roles can change. The current provider directories identify SecureStrux, IS Partners, McKonly & Asbury and Schneider Downs as authorized C3PAOs.

If you tell me your company size, CMMC level (1 or 2), location in PA, and whether you need an assessor vs. implementation partner, I can narrow this to a shortlist of 3–5 firms and compare their services, government experience, certifications, and likely fit.

Places ChatGPT showed

• Security Risk Advisors · 5.0★ · Computer security service
• Echelon Risk + Cyber · 5.0★ · Business to business service
• Site2 · Internet Service Providers
• Omega Systems - King of Prussia · Data Recovery
• Appalachia Technologies LLC · 4.9★ · Computer security service
• Wolf Consulting | Pittsburgh Managed IT, Cybersecurity & IT Support Services · 5.0★ · Computer support and services
• radius180 - Philadelphia Managed IT Services Company · 5.0★ · Computer support and services
• Ferrara IT Services · 4.3★ · Computer support and services
• IT Service ArchiTechs - Managed IT Services & Cybersecurity Protection · 5.0★ · Computer support and services
• Synobis Network Solutions · Computer security service

Yes. I found several Pennsylvania-based cybersecurity firms that explicitly advertise 24/7 managed detection and response (MDR) or an equivalent 24/7 SOC/MDR service. I’d separate them into these stronger matches:

Particularly clear MDR matches

Echelon Risk + Cyber is a notable current option if you specifically want a Pennsylvania-headquartered provider rather than merely a national vendor serving PA. Its September 2026 announcement describes a fully managed MDR service operated from its CrowdStrike Center of Excellence, with 24/7 monitoring, threat hunting, investigation and response.

Site2 is another very explicit match. Its MDR service puts a 24/7 security team in charge of detection and response, and its SOC is staffed by security analysts continuously monitoring customer environments.

Comcast Business also qualifies if you're open to a large national provider headquartered in Philadelphia. Its MDR service is explicitly described as fully managed and 24/7, with multiple geographically distributed 24/7 SOCs.

One caveat

“24/7 monitoring” doesn't always mean 24/7 human response. When evaluating vendors, I'd specifically ask whether overnight alerts are investigated by analysts, whether the provider can take containment actions without waiting for your staff, and what the contractual MTTA/MTTR and escalation SLAs are.

If you tell me your company size, industry, approximate number of endpoints, and whether you're in Eastern/Western/Central PA, I can narrow this to 5–6 providers and compare their MDR capabilities, SOC location, compliance support, and likely fit.

Places ChatGPT showed

• Security Risk Advisors · 5.0★ · Computer security service
• SEVNX · 5.0★ · IT security service
• radius180 - Philadelphia Managed IT Services Company · 5.0★ · Computer support and services
• IT Solutions Technology Partners · 4.8★ · Computer support and services
• Proper Sky - Managed IT Services · 5.0★ · Computer support and services
• ACE Technology Group · 5.0★ · Computer support and services

If by “reliable” you mean established local presence, meaningful cybersecurity capabilities, and evidence of serving businesses in Eastern Pennsylvania, these are firms I’d put on a shortlist. I’m not ranking them as “best,” since the right choice depends heavily on your size, industry, and security requirements.

Eastern PA cybersecurity firms to consider

• Security Risk Advisors — Philadelphia. A cybersecurity-focused firm rather than primarily an IT help-desk provider, with offensive security, defensive engineering, resilience work, and 24/7 security operations. This is particularly relevant if you need sophisticated security consulting or an MSSP rather than ordinary managed IT.
• SEVNX — King of Prussia. A boutique cybersecurity specialist focused on vCISO/advisory work, penetration/offensive testing, and incident response. A potentially good fit when you need security expertise layered onto an existing IT department.
• radius180 — Philadelphia. Veteran-owned MSP/cybersecurity provider offering 24/7 monitoring, vulnerability management, endpoint/network protection, incident response, and compliance-oriented services including NIST/CMMC.
• IT Solutions Technology Partners — Fort Washington. Offers managed and co-managed IT, cybersecurity/compliance, cloud services, and fractional-CISO advisory. Its location makes it particularly convenient for Montgomery County and the northern Philadelphia suburbs.
• Proper Sky — Abington. Established Greater Philadelphia MSP with a substantial cybersecurity component, including 24/7 monitoring/SOC coverage, Zero Trust-oriented controls, vulnerability management, phishing training, and incident response.
• ACE Technology Group — Phoenixville. Focuses on SMB/midsize organizations and combines managed IT with cybersecurity, 24/7 monitoring, backups/DR, and a NIST Cybersecurity Framework-based approach.
• MCIT — Allentown/Lehigh Valley. A locally owned cybersecurity and managed-IT firm founded in 2015. It says it provides 24/7 monitoring and works against frameworks including NIST CSF, CIS Controls, SOC 2, HIPAA, PCI DSS, and CMMC.
• Infradapt — Lehigh Valley/Philadelphia. A longer-established managed-services provider with offices in the Lehigh Valley and Philadelphia and services spanning cybersecurity, disaster recovery, cloud, compliance, and managed IT.

How I'd narrow the field

For a 50–500 employee business, I'd specifically investigate firms offering:

1. 24/7 MDR/SOC monitoring, not merely antivirus.
2. Incident response with a defined SLA.
3. Independent penetration testing at least annually.
4. MFA, EDR/XDR, email security, vulnerability management and immutable backups.
5. NIST CSF / CIS Controls alignment.
6. Cyber-insurance and regulatory support if you're subject to HIPAA, PCI DSS, CMMC, etc.
7. A clear answer to “What happens at 2 a.m. when ransomware is detected?”

One particularly useful distinction is MSSP/cybersecurity specialist vs. MSP with cybersecurity services. Security Risk Advisors and SEVNX are more security-specialist-oriented; MCIT, Infradapt, ACE, Proper Sky and similar providers combine cybersecurity with broader outsourced IT.

If you tell me your location (e.g. Philadelphia, Lehigh Valley, Bucks/Montgomery County), company size, and industry, I can narrow this to 3–5 firms and compare their services, certifications, local presence, and apparent fit.

Places ChatGPT showed

• Wolf Consulting | Pittsburgh Managed IT, Cybersecurity & IT Support Services · 5.0★ · Computer support and services
• Echelon Risk + Cyber · 5.0★ · Business to business service
• Seiso | Cybersecurity Compliance Specialists · 5.0★ · Computer security service
• RedHelm · 4.4★ · Computer support and services
• PGH Networks · 4.9★ · Computer support and services
• NET Xperts LLC · 5.0★ · Computer support and services
• E-Safe Partners · 4.6★ · Computer support and services
• Ceeva · 5.0★ · Computer support and services
• Midnight Blue Technology Services · 4.9★ · Computer support and services
• M6 Technologies, Inc. · 5.0★ · Computer support and services

If by “best” you mean strongest firms to evaluate, rather than a subjective #1 ranking, Western Pennsylvania has several credible cybersecurity providers. The right choice depends heavily on whether you need managed security, compliance, incident response, penetration testing, or industrial/OT security.

Firms worth putting on your shortlist

• Wolf Consulting | Pittsburgh Managed IT, Cybersecurity & IT Support Services — Monroeville/Pittsburgh. Strong fit for SMB and mid-market organizations wanting managed cybersecurity integrated with IT. Its security offering includes managed EDR, 24/7 SOC coverage, zero-trust access and dark-web monitoring.
• Echelon Risk + Cyber — Pittsburgh. More cybersecurity-specialized, with compliance, vCISO/security-program work, offensive testing, business continuity and managed detection capabilities.
• Seiso | Cybersecurity Compliance Specialists — Warrendale. Particularly relevant if you're dealing with regulatory compliance, audits, risk management or cybersecurity program development.
• RedHelm — Pittsburgh. Security-first managed IT with cybersecurity, 24/7 monitoring, incident response and infrastructure services. It is also identified by The Manifest as one of Pittsburgh's established cybersecurity providers.
• PGH Networks — Pittsburgh. Good candidate for organizations wanting a local MSP with cybersecurity integrated into broader IT operations. It specifically serves multiple Western Pennsylvania counties and describes its security program as NIST-CSF/SOC-2-oriented.
• NET Xperts LLC — Pittsburgh. Managed IT, cybersecurity and cloud services across Western Pennsylvania, with a long-established local presence.
• E-Safe Partners — Pittsburgh. Particularly geared toward Western Pennsylvania businesses needing managed IT plus security, threat detection, incident response, compliance and endpoint protection.
• Ceeva — Pittsburgh. Managed cybersecurity includes phishing training, email security, MFA/identity, endpoint protection, MDR/XDR and incident response.
• Midnight Blue Technology Services — Bridgeville. A good SMB/mid-market option combining managed IT, cybersecurity, backup/DR and cloud services.
• M6 Technologies, Inc. — Pittsburgh. Security-focused MSP with managed IT, network consulting and cybersecurity services.

A couple of specialized options

Allegheny Digital is worth considering if you specifically need security advisory work, incident response, security training or managed cloud services; it describes itself as a Western Pennsylvania cybersecurity firm.

For industrial/OT cybersecurity, GrayMatter in Warrendale is another name to investigate. Its cybersecurity work specifically includes operational technology and industrial environments.

How I'd narrow it down

For additional market context, Clutch's September 2026 Pittsburgh cybersecurity directory includes firms such as NextLink Labs, Foresite Cybersecurity, Datalink Networks, Infracore, LayerCake Technologies and others, using client reviews and company/project information as part of its assessment.

If you tell me your company size, industry, and whether you need managed security vs. a one-time assessment/penetration test, I can narrow this to 3–5 Western PA firms that fit your situation, with pricing ranges and specific strengths.

Places ChatGPT showed

• Security Risk Advisors · 5.0★ · Computer security service
• SEVNX · 5.0★ · IT security service
• Ethical Intruder · 5.0★ · Computer security service
• Breach Craft · local_business
• Seiso | Cybersecurity Compliance Specialists · 5.0★ · Computer security service
• Appalachia Technologies LLC · 4.9★ · Computer security service

If you mean Pennsylvania-based firms with meaningful penetration-testing and security-assessment capabilities, these are worth putting on an RFP shortlist. I’m not treating “best” as a universal ranking; the right choice depends on whether you need deep offensive testing, compliance evidence, cloud assessment, red teaming, or a broader security program review.

A few that stand out for different needs

• Deep offensive/security testing: Security Risk Advisors and Cyber Syndicate are particularly relevant if the engagement is primarily about finding exploitable weaknesses rather than simply performing a compliance checklist. SRA also has cloud and OT/security-engineering capabilities.
• Boutique penetration testing: Cyber Syndicate advertises web, network, cloud and mobile testing performed by OSCP-certified testers, while Red Forge lists OSEP/OSCP/OSWA/OSWP expertise and offers network, web-app, cloud, social-engineering and red-team engagements.
• Security assessment + broader program work: SEVNX, Seiso and Ethical Intruder are worth considering if you want the penetration test tied into risk management, compliance, vCISO or security-program improvements rather than receiving only a technical findings report.
• Compliance-heavy environments: Appalachia Technologies and Seiso have particularly relevant compliance/GRC capabilities; Appalachia also emphasizes CMMC work.
• Philadelphia-area option: Breach Craft is a small Havertown firm focused on offensive security and security/compliance advisory, with certifications including OSCP, GPEN, CISSP and CISM.

One useful distinction when comparing proposals: OSCP/GIAC certifications describe individual testers, whereas CREST accreditation applies to the testing organization and its processes as well. CREST specifically distinguishes provider accreditation from individual certifications.

What I'd put in the RFP

Ask each firm to quote the same scope and explicitly identify:

• External and internal network testing
• Web application and API testing
• Cloud configuration/security assessment (AWS/Azure/GCP, if applicable)
• Active Directory/identity assessment
• Wireless testing, if relevant
• Social engineering/phishing, if wanted
• Manual testing vs. automated scanning
• Severity methodology and business-impact analysis
• Remediation consultation
• Included retesting
• Tester certifications and experience
• Whether testing is performed by the firm's own personnel
• Deliverables: executive report, technical report, evidence, remediation roadmap
• Compliance mappings needed (PCI DSS, HIPAA, SOC 2, CMMC, NIST, etc.)

For a conventional annual penetration test + broader security assessment, I'd get proposals from roughly 3–5 firms rather than selecting solely from directory rankings. Pennsylvania has a substantial number of smaller specialist firms—one current directory identifies 64 providers—so specialization can matter considerably.

If you tell me your city/region in Pennsylvania, company size, industry, and whether you need compliance (e.g. SOC 2, PCI, HIPAA, CMMC), I can narrow this to a practical shortlist and compare their services, certifications, locations, and published pricing where available.

Places ChatGPT showed

• D2 Integrated Solutions - IT Services and Support · 4.9★ · Computer support and services
• Appalachia Technologies LLC · 4.9★ · Computer security service
• Wolf Consulting | Pittsburgh Managed IT, Cybersecurity & IT Support Services · 5.0★ · Computer support and services
• IT Service ArchiTechs - Managed IT Services & Cybersecurity Protection · 5.0★ · Computer support and services
• ACE Technology Group · 5.0★ · Computer support and services
• Underdog Cyber Defense (Underdog Computer and Network Support LLC) · 5.0★ · Computer security service

Yes. If by “trusted” you mean locally/family owned, established, and with visible business-client/review evidence, several Pennsylvania firms stand out. I’d distinguish “trusted” from “best,” since trust is inherently subjective.

Pennsylvania firms worth looking at

• StarLinX — Furlong/Bucks County. This is the clearest match to your criteria: StarLinX says it has been family-owned for 35+ years and operates as both an MSP and MSSP. It publishes testimonials from long-term business customers, including organizations that report 10–30+ year relationships. Its services include managed cybersecurity, Zero Trust, monitoring and IT management.
• D2 Integrated Solutions — Oreland/Greater Philadelphia. A family-owned MSP offering managed cybersecurity and compliance alongside broader IT services. It appears particularly relevant for SMBs wanting one locally managed IT/security relationship rather than a pure cybersecurity consultancy.
• Appalachia Technologies LLC — Mechanicsburg/Central PA. A locally based IT and cybersecurity provider serving SMBs and regulated organizations, with managed security, compliance/GRC and related services. Its current local review footprint is also strong.
• Wolf Consulting — Monroeville/Pittsburgh. A long-established Pittsburgh-area managed IT and cybersecurity provider. It serves small and midsize organizations and offers managed cybersecurity and compliance services. Its current business profile shows a 5.0 rating from 65 reviews.
• IT Service ArchiTechs — Springfield/Delaware County. A locally based MSP serving SMBs with cybersecurity, managed IT, cloud and business continuity. Its current business profile shows 5.0 from 76 reviews, making it one of the stronger visible customer-review signals in the Philadelphia-area results.
• ACE Technology Group — Phoenixville/Greater Philadelphia. Locally based managed IT and cybersecurity provider for small and midsize organizations. Its security program is built around a layered-defense approach and the NIST Cybersecurity Framework.
• 3rd Element Consulting — Mechanicsburg/Central PA. This is another interesting local option for established businesses: it provides managed IT, cybersecurity, governance/compliance, cyber-insurance readiness and vCIO services. It says it serves privately owned businesses with roughly 25–250 employees and was included in CRN's 2026 MSP 500 Security 100.
• Underdog Cyber Defense — Marshalls Creek/East Stroudsburg. A smaller, locally based cybersecurity/MSP firm serving SMBs and local government in northeastern Pennsylvania. Its profile shows 5.0 from 12 reviews and emphasizes cybersecurity risk management.

If family ownership is the key requirement

The strongest documented matches I found are StarLinX and D2 Integrated Solutions. StarLinX is particularly transparent about its family ownership and longevity: it says the business began in 1991 and remains family operated.

If you tell me what part of Pennsylvania (Philadelphia, Pittsburgh, Harrisburg, Lehigh Valley, etc.) and roughly how many employees/users your business has, I can narrow this to 5–7 firms and compare their ownership, years in business, cybersecurity capabilities, certifications, reviews, industries served, and likely fit—without treating review scores as a definitive ranking.