Enosis Outsourcing logo
Browse CompaniesExplore ProjectsAbout Us
BlogHelp Center
Free Consultation
Sign In
HomeChevronUSAChevronSecurity Testing Companies

Top Security Testing Services in the USA

Security testing services in the USA help organizations identify security weaknesses across applications, APIs, infrastructure, cloud environments, configurations, and connected systems before those weaknesses create material risk. Depending on scope, an engagement can combine vulnerability assessment, application and API security testing, configuration review, authentication and access-control checks, security validation, and retesting after remediation. Buyers comparing providers in the USA should evaluate the proposed test scope, methodology, technical depth, evidence quality, severity model, reporting clarity, remediation guidance, retesting, and coordination with engineering or security teams. Enosis Outsourcing lets you compare companies in the USA offering security testing, review relevant capabilities and experience, and assess project fit before building a shortlist. Use this USA-focused page to narrow providers against your systems in scope, risk profile, testing objectives, release schedule, reporting requirements, and need for ongoing security validation.

search-icon
204 companies listed
Sort by:
Best Match
company-logo

InterProbe

mapAnkara, Turkey(UTC+3)
Clutch logo
N/A
Glassdoor logo
3.6
rating-star
(11)
mapAnkara, Turkey(UTC+3)
Clutch logo
N/A
Glassdoor logo
3.6
rating-star
(11)

Top Services
Big Data Analytics and Business Intelligence
Cybersecurity
Security Testing
Top Tech Stack
Java Java
Python Python
C# C#
flag
Founded 2016
users
Company Size: 11 - 50
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

Crestech Software

mapNoida, India(UTC+5.5)
Clutch logo
4.7
rating-star
(3)
Glassdoor logo
3.7
rating-star
(157)
mapNoida, India(UTC+5.5)
Clutch logo
4.7
rating-star
(3)
Glassdoor logo
3.7
rating-star
(157)

Top Services
Software QA and Testing
Test Automation
Security Testing
Top Tech Stack
C C
Java Java
SQL SQL
flag
Founded 2005
users
Company Size: 201 - 500
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

BlockApex

mapKarachi, Pakistan(UTC+5)
Clutch logo
4.8
rating-star
(3)
Glassdoor logo
3.6
rating-star
(3)
mapKarachi, Pakistan(UTC+5)
Clutch logo
4.8
rating-star
(3)
Glassdoor logo
3.6
rating-star
(3)

Top Services
Security Testing
Blockchain Development
Web3 Development
Top Tech Stack
Python Python
Node.js Node.js
React.js React.js
flag
Founded 2021
users
Company Size: 11 - 50
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

QA Mentor

mapPune, India(UTC+5.5)
Clutch logo
4.9
rating-star
(7)
Glassdoor logo
4.2
rating-star
(22)
mapPune, India(UTC+5.5)
Clutch logo
4.9
rating-star
(7)
Glassdoor logo
4.2
rating-star
(22)

Top Services
Security Testing
Software QA and Testing
QA Audit and Consulting
Top Tech Stack
C++ C++
Java Java
SQL SQL
flag
Founded 2010
users
Company Size: 201 - 500
dollar
Hourly Rate: $15/hr - $24/hr
company-logo

ImpactQA

mapNoida, India(UTC+5.5)
Clutch logo
4.6
rating-star
(6)
Glassdoor logo
3.7
rating-star
(258)
mapNoida, India(UTC+5.5)
Clutch logo
4.6
rating-star
(6)
Glassdoor logo
3.7
rating-star
(258)

Top Services
Mobile Application Testing
Security Testing
IoT Testing
Top Tech Stack
Java Java
SQL SQL
Robot Framework Robot Framework
flag
Founded 2012
users
Company Size: 51 - 200
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

Applause

mapFramingham, United States of America(UTC-5)
Clutch logo
N/A
Glassdoor logo
3.7
rating-star
(242)
mapFramingham, United States of America(UTC-5)
Clutch logo
N/A
Glassdoor logo
3.7
rating-star
(242)

Top Services
AI-Powered Software Testing
Test Automation
Software QA and Testing
Top Tech Stack
Java Java
CSS CSS
Python Python
flag
Founded 2007
users
Company Size: 1,001 - 5,000
dollar
Hourly Rate: $150/hr - $199/hr
company-logo

Nemo IT Solutions

mapRichardson, United States of America(UTC-5)
Clutch logo
N/A
Glassdoor logo
N/A
mapRichardson, United States of America(UTC-5)
Clutch logo
N/A
Glassdoor logo
N/A

Top Services
AI and Machine Learning
Cloud Consulting and Services
Software QA and Testing
Top Tech Stack
Amazon Web Services (AWS) Amazon Web Services (AWS)
Java Java
JavaScript JavaScript
flag
Founded 2005
users
Company Size: 201 - 500
dollar
Hourly Rate: $150/hr - $199/hr
company-logo

Technologent

mapIrvine, United States of America(UTC-5)
Clutch logo
N/A
Glassdoor logo
3.8
rating-star
(37)
mapIrvine, United States of America(UTC-5)
Clutch logo
N/A
Glassdoor logo
3.8
rating-star
(37)

Top Services
Cloud Consulting and Services
AI and Machine Learning
Data Engineering
Top Tech Stack
Amazon Web Services (AWS) Amazon Web Services (AWS)
PHP PHP
Angular Angular
flag
Founded 2002
users
Company Size: 201 - 500
dollar
Hourly Rate: $150/hr - $199/hr
company-logo

Apexon

mapBengaluru, India(UTC+5.5)
Clutch logo
N/A
Glassdoor logo
4.2
rating-star
(3)
mapBengaluru, India(UTC+5.5)
Clutch logo
N/A
Glassdoor logo
4.2
rating-star
(3)

Top Services
AI and Machine Learning
Big Data Analytics and Business Intelligence
Custom Software Development
Top Tech Stack
Python Python
Java Java
SQL SQL
flag
Founded 1996
users
Company Size: 1,001 - 5,000
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

Apriorit

mapDnipro, Ukraine(UTC+2)
Clutch logo
4.9
rating-star
(43)
Glassdoor logo
4.9
rating-star
(87)
mapDnipro, Ukraine(UTC+2)
Clutch logo
4.9
rating-star
(43)
Glassdoor logo
4.9
rating-star
(87)

Top Services
Software as a Service (SaaS) Development
API Development
Custom Software Development
Top Tech Stack
Python Python
C# C#
C++ C++
flag
Founded 2002
users
Company Size: 201 - 500
dollar
Hourly Rate: $100/hr - $149/hr
company-logo

Aridian Technologies LLC

mapRawalpindi, Pakistan(UTC+5)
Clutch logo
N/A
Glassdoor logo
4.5
rating-star
(4)
mapRawalpindi, Pakistan(UTC+5)
Clutch logo
N/A
Glassdoor logo
4.5
rating-star
(4)

Top Services
Big Data Analytics and Business Intelligence
Mobile Application Development
IT Consulting
Top Tech Stack
MySQL MySQL
Python Python
SQL SQL
flag
Founded 2013
users
Company Size: 51 - 200
dollar
Hourly Rate: $50/hr - $99/hr
company-logo

Altezzasys

mapNoida, India(UTC+5.5)
Clutch logo
N/A
Glassdoor logo
4.3
rating-star
(183)
mapNoida, India(UTC+5.5)
Clutch logo
N/A
Glassdoor logo
4.3
rating-star
(183)

Top Services
Mobile Application Development
Blockchain Development
AI and Machine Learning
Top Tech Stack
MySQL MySQL
CSS CSS
SQL SQL
flag
Founded 2014
users
Company Size: 201 - 500
dollar
Hourly Rate: $15/hr - $24/hr
company-logo

Abstracta Inc

mapMontevideo, Uruguay(UTC-3)
Clutch logo
4.7
rating-star
(23)
Glassdoor logo
4.6
rating-star
(27)
mapMontevideo, Uruguay(UTC-3)
Clutch logo
4.7
rating-star
(23)
Glassdoor logo
4.6
rating-star
(27)

Top Services
AI and Machine Learning
Software QA and Testing
DevOps
Top Tech Stack
Java Java
Python Python
PHP PHP
flag
Founded 2008
users
Company Size: 51 - 200
dollar
Hourly Rate: $50/hr - $99/hr
company-logo

AgreeYa Solutions

mapNoida, India(UTC+5.5)
Clutch logo
N/A
Glassdoor logo
4.3
rating-star
(689)
mapNoida, India(UTC+5.5)
Clutch logo
N/A
Glassdoor logo
4.3
rating-star
(689)

Top Services
Software Product Development
UI/UX Design
Microsoft Solutions
Top Tech Stack
C# C#
Java Java
Python Python
flag
Founded 1999
users
Company Size: 1,001 - 5,000
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

AXIOMIO

mapHyderabad, India(UTC+5.5)
Clutch logo
N/A
Glassdoor logo
4.5
rating-star
(66)
mapHyderabad, India(UTC+5.5)
Clutch logo
N/A
Glassdoor logo
4.5
rating-star
(66)

Top Services
Cloud Consulting and Services
DevOps
Cybersecurity
Top Tech Stack
Amazon Web Services (AWS) Amazon Web Services (AWS)
Azure Azure
Python Python
flag
Founded 2010
users
Company Size: 51 - 200
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

Ardas

mapDnipro, Ukraine(UTC+2)
Clutch logo
4.9
rating-star
(21)
Glassdoor logo
5.0
rating-star
(5)
mapDnipro, Ukraine(UTC+2)
Clutch logo
4.9
rating-star
(21)
Glassdoor logo
5.0
rating-star
(5)

Top Services
Software as a Service (SaaS) Development
DevOps
UI/UX Design
Top Tech Stack
Java Java
Spring Spring
React.js React.js
flag
Founded 2005
users
Company Size: 51 - 200
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

AAPNA Infotech

mapNew Delhi, India(UTC+5.5)
Clutch logo
4.9
rating-star
(8)
Glassdoor logo
4.7
rating-star
(128)
mapNew Delhi, India(UTC+5.5)
Clutch logo
4.9
rating-star
(8)
Glassdoor logo
4.7
rating-star
(128)

Top Services
Robotic Process Automation (RPA)
Software QA and Testing
ERP Solutions
Top Tech Stack
ASP.NET ASP.NET
PHP PHP
MongoDB MongoDB
flag
Founded 2007
users
Company Size: 51 - 200
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

Appsinvo Pvt Ltd

mapNoida, India(UTC+5.5)
Clutch logo
4.9
rating-star
(25)
Glassdoor logo
4.4
rating-star
(24)
mapNoida, India(UTC+5.5)
Clutch logo
4.9
rating-star
(25)
Glassdoor logo
4.4
rating-star
(24)

Top Services
Website Development
IoT Development
Mobile Application Development
Top Tech Stack
Java Java
C C
React.js React.js
flag
Founded 2014
users
Company Size: 51 - 200
dollar
Hourly Rate: $15/hr - $24/hr
company-logo

Azoft

mapNovosibirsk, Russia(UTC+3)
Clutch logo
5.0
rating-star
(16)
Glassdoor logo
3.8
rating-star
(14)
mapNovosibirsk, Russia(UTC+3)
Clutch logo
5.0
rating-star
(16)
Glassdoor logo
3.8
rating-star
(14)

Top Services
UI/UX Design
Website Development
Mobile Application Development
Top Tech Stack
Java Java
JavaScript JavaScript
MySQL MySQL
flag
Founded 2002
users
Company Size: 51 - 200
dollar
Hourly Rate: $25/hr - $49/hr
company-logo

BeKey

mapKharkiv, Ukraine(UTC+2)
Clutch logo
5.0
rating-star
(11)
Glassdoor logo
5.0
rating-star
(1)
mapKharkiv, Ukraine(UTC+2)
Clutch logo
5.0
rating-star
(11)
Glassdoor logo
5.0
rating-star
(1)

Top Services
Custom Software Development
Mobile Application Development
Staff Augmentation
Top Tech Stack
JavaScript JavaScript
MySQL MySQL
Python Python
flag
Founded 2016
users
Company Size: 11 - 50
dollar
Hourly Rate: $25/hr - $49/hr
123
...
11

Company Profile Links

InterProbeCrestech SoftwareBlockApexQA MentorImpactQAApplauseNemo IT SolutionsTechnologentApexonAprioritAridian Technologies LLCAltezzasysAbstracta IncAgreeYa SolutionsAXIOMIOArdasAAPNA InfotechAppsinvo Pvt LtdAzoftBeKey
icon

Talk To Our Experts For Free

Outsource the right way. Chat with an industry expert today.
green-tick-image100% free
green-tick-imageGlobal coverage
green-tick-image95% match satisfaction rate
Get Free Consultation
icon

Expand Your Reach

List your software development & QA services outsourcing company to connect with qualified clients.
Get Listedarrow-icon

Frequently Asked Questions About Security Testing in the USA

Security testing services in the USA can include vulnerability assessment, web and mobile application testing, API security testing, configuration review, authentication and authorization checks, cloud or infrastructure security assessment, validation of reported weaknesses, and retesting after remediation. The exact mix should be defined by the systems, interfaces, environments, user roles, data sensitivity, and risks in scope. Buyers should ask each provider to state what is included, what is excluded, the testing depth, expected deliverables, and whether remediation support or retesting is part of the engagement.

Security testing is a broader assurance category that can include vulnerability assessment, application and API testing, configuration review, control validation, and other methods used to identify security weaknesses. Penetration testing is a more specific assessment that typically uses attacker-style techniques to test whether weaknesses can be exploited and what impact exploitation could create. Buyers in the USA should define the outcome they need before choosing a service: broad security validation, targeted application testing, compliance-oriented evidence, or a scoped penetration test. The provider should explain which techniques are included and how findings will be validated.

A business should consider security testing services in the USA before major releases, after significant architecture or authentication changes, when exposing new internet-facing systems or APIs, after important security fixes, or when independent validation is required. Testing can also help when an internal team needs specialist security depth or an external view of technical risk. The best timing leaves enough room to investigate material findings, implement fixes, and retest before a launch, audit, migration, or other critical milestone.

Choose a security testing provider in the USA by matching its experience and testing approach to the systems and risks you need assessed. Compare scope definition, methodology, manual versus automated depth, application and API expertise where relevant, reporting quality, severity methodology, remediation guidance, retesting, communication, and evidence from similar engagements. Ask who will perform the work, how critical findings are escalated, and what the final deliverables include. A credible provider should be able to explain how its proposed testing maps to your environment rather than offering only a generic checklist.

The cost of security testing services in the USA depends on the number and complexity of systems, testing depth, application or API surface, user roles, environments, infrastructure, time constraints, reporting requirements, and whether remediation support or retesting is included. A focused assessment and a broad multi-system engagement are not directly comparable. Ask providers to specify scope, assumed effort, exclusions, deliverables, retesting terms, and prerequisites so proposals can be compared on a like-for-like basis instead of by headline price alone.

Security testing timelines in the USA depend on scope, system complexity, number of applications or interfaces, environment readiness, access requirements, testing depth, reporting, and any retesting cycle. A focused assessment can be shorter than a broad program covering multiple applications, APIs, cloud services, or infrastructure components. Ask providers to separate preparation, active testing, analysis, reporting, remediation support, and retesting in the schedule, and identify dependencies such as credentials, test environments, documentation, and technical contacts.

Ask how the provider defines scope, which testing methods it will use, who will perform the assessment, how manual testing complements automated checks, how findings are validated, and what the final report includes. Also clarify severity methodology, handling of critical findings, remediation guidance, retesting, data handling, environment requirements, and activities that are excluded or require approval. Request evidence from similar systems or engagement types so you can judge the actual testing depth rather than relying only on broad cybersecurity claims.

A strong security testing report should identify affected assets or components, explain each confirmed weakness, provide evidence, describe realistic impact, assign severity consistently, and give practical remediation guidance. It should separate confirmed findings from informational observations and make retesting status clear when fixes are reviewed. For buyers comparing providers in the USA, an anonymized sample report or proposed reporting structure can help show whether the output will be useful to engineering, security, and decision-making teams for remediation and risk prioritization.
Enosis Outsourcing logo
Outsourcing Simplified
Company
About usBlog
Explore
All CompaniesAll ProjectsAll ServicesProject Capability Score
Get Started
Get ListedStart a ProjectFree Outsourcing Consultation
Support
Help CenterContact us
Phone Icon
+1 (412) 567-4498
Email Icon
info@enosisoutsourcing.com
© Copyright 2026, All Rights Reserved by Enosis Outsourcing
Terms & ConditionsPrivacy Policy
X LogoFacebook LogoLinkedIn Logo