#1
ScienceSoft
Security work tied to wider software and IT consulting services.
- Best fit
- security testing, audits, and compliance support
- Price range
- USD 50 to USD 99 per hour
- Team size
- 750 plus
VendorProof category guide
Verified Security Audit Companies
security audit requires a partner that can be direct, careful, and specific. Buyers should look for evidence of testing quality, reporting clarity, compliance knowledge, and practical fixes.
This page compares security audit companies by security focus, proof of past work, reporting style, team depth, and the type of systems they are best equipped to review.
Verified security audit companies
Rankings are based on proof signals such as relevant work, pricing context, team size, buyer fit, and public reputation.
#2
ELEKS
Good fit when security needs to sit close to engineering.
- Best fit
- application security and secure software delivery
- Price range
- USD 50 to USD 99 per hour
- Team size
- 2000 plus
#3
Secureworks
Security focused provider for monitoring and response programs.
- Best fit
- managed security and threat detection
- Price range
- Project based
- Team size
- 2000 plus
#4
BreachLock
Focused security testing vendor for web, mobile, and cloud assets.
- Best fit
- penetration testing and vulnerability assessment
- Price range
- Project based
- Team size
- 100 plus
#5
UnderDefense
Good match for buyers that need security operations help.
- Best fit
- SOC, managed security, and incident support
- Price range
- Project based
- Team size
- 100 plus
Related Cybersecurity categories
Narrow the search by platform, project type, or delivery need.
Penetration TestingVerified penetration testing companies
Cloud SecurityVerified cloud security companies
Application SecurityVerified application security companies
Compliance SecurityVerified compliance security companies
Soc SetupVerified SOC setup companies
Security AuditVerified security audit companies
Vulnerability ManagementVerified vulnerability management companies
How to choose a security audit partner
Use these checks before sending a brief or booking a sales call.
Ask for matching workLook for projects close to your platform, audience, budget, and timeline.
Check team ownershipConfirm who handles planning, design, engineering, QA, and post launch work.
Review pricing earlyCompare hourly ranges, project minimums, and what is included in the estimate.
Look for proofCase studies, public reviews, shipped links, and clear process notes are better than claims.