Penetration Testing Services

Penetration testing services that prove what an attacker can reach

Manual penetration testing of your applications, cloud, networks and devices by certified testers. Every finding comes with a reproducible proof of concept, a fix your engineers can ship and a walkthrough from the person who found it.

Web apps, APIs, mobile, thick client, cloud, network, IoT and ICS
Mapped to OWASP, PTES, NIST SP 800-115 and PCI DSS
CREST-accredited, ISO/IEC 27001 certified, SOC 2 Type 2 attested
PTaaS credits, fixed quotes or a subscription

Scope my penetration test See a sample report Talk to an expert →

The credentials behind every engagement

2026 CyberSecurity Breakthrough Awards winner

Penetration Testing Solution of the Year2026 CyberSecurity Breakthrough Awards

Reviewed by Omair Manzoor, Founder & CEO, ioSENTRIX · Updated November 2026

Trusted by security teams at

See it in action

Which penetration test do you need first?

Start from what you need to prove. We match the test to the goal.

Goal to test

Recommendations depend on your scope; this is a starting point.

Pass an audit: web and API, network and cloud.
Ship a release safely: web and API, and mobile.
Answer a security questionnaire: web and API, and cloud.
Due diligence: network, cloud, and web and API.

The short answer

What are penetration testing services?

Penetration testing services are authorized, hands-on attacks on your systems by security testers, carried out to find and prove the weaknesses a real attacker could exploit. A penetration test covers applications, APIs, cloud, networks or devices within an agreed scope, and ends with a report showing each finding’s impact and how to fix it.

A penetration test differs from a vulnerability scan because testers exploit what they find, chain weaknesses together and test business logic that tools cannot understand. A good penetration testing company proves each finding with a reproducible proof of concept, so your team fixes real risk instead of triaging scanner output.

ioSENTRIX is a CREST-accredited penetration testing company: certified testers work by hand, map findings to standards such as the OWASP Top 10:2025, PTES and NIST SP 800-115, and retest every fix free of charge.

You need a penetration test if

An enterprise customer or auditor asked for a pentest report
You are preparing for SOC 2, ISO/IEC 27001 or PCI DSS
You are launching a product or shipping a major release
You changed infrastructure, cloud accounts or authentication

What we test

Penetration testing for every layer you run

Choose one area or combine several in one engagement. Each service has its own page with scope and method. Testing an AI model, LLM feature or agent? See AI and LLM penetration testing.

Applications

Web, API, mobile and thick client

Manual testing of the software your customers and staff use.

Web application and API penetration testing
Mobile app penetration testing (iOS and Android)
Thick client penetration testing
Multi-tenant SaaS isolation

Infrastructure

Cloud and network

The platforms and networks your applications run on.

Internal and external network penetration testing
Cloud penetration testing (AWS, Azure, GCP)
Segmentation testing
Identity and access paths

Devices

IoT, embedded and ICS

Hardware, firmware and industrial systems.

IoT and embedded device penetration testing
Medical devices and gaming consoles
ICS and SCADA penetration testing (OT and IIoT)
Firmware and hardware interfaces

Adversary

Red team and social engineering

Testing people and detection, not only systems.

Red team services
Purple teaming
Social engineering penetration testing: phishing and vishing
Physical testing, where agreed

Methodology

How we test: example test cases

A sample of the manual test cases across our penetration tests. Your scope decides the full list.

A01:2025

Horizontal and vertical access control

We change object IDs, roles and tenant identifiers to reach data and functions the signed-in user should not.

API6:2023

Abuse of sensitive business flows

We automate flows such as sign-up, checkout or refunds to test whether the business can be harmed at scale.

PCI DSS 11.4.5

Segmentation controls

Where segmentation isolates the cardholder data environment, we test from out-of-scope networks whether it holds.

NET-01

External attack surface

We find exposed services, login portals and forgotten hosts, then try to turn them into a foothold.

CLOUD-01

Cloud identity privilege escalation

We test whether a low-privilege identity can chain permissions into admin access to your cloud accounts.

MASVS-STORAGE

Sensitive data on mobile devices

We check whether apps leave tokens, personal data or keys in storage, logs or backups.

Sample finding

What a finding looks like in our report

An illustrative example in our report format. Not client data.

Finding 01 · IllustrativeHigh

Changing an account ID in the billing API exposes every customer’s invoices

OWASP API Security Top 10 2023 · API1:2023 Broken Object Level Authorization

What we found

The billing API returned invoices by account ID and only checked that the request carried a valid session. By changing the ID in a request, a tester signed in as one customer downloaded invoices and billing addresses for other customers.

Impact

Any signed-in customer can read every other customer’s billing history.

How to fix it

Check on the server that the requested account belongs to the session’s organization on every billing endpoint, use non-sequential identifiers, and add an automated authorization test for each new endpoint.

What you get

What you get from every penetration test

Not a scan export. Proven findings and fixes your engineers can act on.

Findings with proof, ranked by exploitability

Each finding has a severity, a reproducible proof of concept and remediation guidance your engineers can act on.

Real-time findings and JIRA

On our PTaaS platform, findings appear as they are confirmed and can go straight into JIRA, so fixes start before the report.

Walkthrough, then retesting

The person who found each issue explains it to your team, and retesting confirms the fix.

ioSENTRIX sample penetration test report cover

See how we write findings before you talk to us

A redacted sample penetration test report (web application): finding write-ups, proof-of-concept evidence and remediation. No form required.

Download the sample report (PDF) →

Verified reviews

What security leaders say about working with us

★★★★★

“Unlike other providers, Omair and his team truly dive deep into our infrastructure, delivering findings that go well beyond the surface level. Communication is direct and seamless.”

Jesus B.

Cybersecurity Manager, Banking

Verified G2 review ↗

★★★★★

“We were impressed with ioSENTRIX’s ability to independently validate the security of our customer-facing product.”

Zeehasham R.

Data Scientist, Security Operations · Fortune 500 insurer

Verified Clutch review ↗

★★★★★

“The team at ioSENTRIX is professional and highly skilled at their craft.”

Awwab A.

SVP, Chief Information Security Officer

Verified G2 review ↗

How it works

How a penetration test works

Four steps, so you know what happens and what you get.

Scoping

A senior engineer reviews your systems and replies with scope, timeline and a fixed quote.

Under an hour

Rules of engagement

We agree targets, test accounts, testing windows and escalation contacts in writing.

Before any work

Manual testing

Testers attack the agreed scope, with findings shared in real time on the PTaaS platform.

Days to weeks, by scope

Report and retest

A standards-mapped report, a walkthrough with your team and retesting once fixes land.

At close

Reply in under an hour → fixed quote in writing → manual testing → report, walkthrough and retest

How we compare

Not a scanner. Not a checkbox report.

How an ioSENTRIX penetration test compares with the usual alternatives.

ioSENTRIX penetration test

Automated vulnerability scanner

Low-cost checklist pentest

Method

Manual, attacker-led testing, with tools for coverage

Automated checks for known issues

Mostly scanner output with light manual review

Business logic and access control

Tested by hand across roles and tenants

Not tested

Rarely tested

Chained attacks

Weaknesses combined to show real impact

Each issue reported alone

Rarely attempted

Evidence

Reproducible proof of concept and a fix

Findings to triage, with false positives

Finding list

After the report

Walkthrough with the tester and retesting

Rescan

Often limited or extra

Scope my penetration test

Scope and price

How much does a penetration test cost?

Penetration test cost depends on effort: the number of applications, hosts and user roles in scope, the testing depth (black, gray or white box), the testing windows and the standards the report must map to. ioSENTRIX sends a fixed quote after a short scoping call. To test on every release, see penetration testing as a service.

What moves the quote

01How many applications, APIs, hosts or cloud accounts are in scope
02How many user roles and tenants need testing
03Black-box, gray-box or white-box testing with code access
04Whether testing runs in staging or production, and in what windows
05The standards your report needs to map to
06Retesting, and any timebox you set to fit a budget

Read: Penetration testing cost and pricing: what a pentest really costs →

What we need from you to start

A list of targets: URLs, IP ranges, apps or cloud accounts
Test accounts for each user role
Your deadline, if an audit, launch or customer review is driving it
Testing windows and any systems that are off limits
A technical contact for questions during testing

Scope my penetration test

Case studies

Engagements we have run

Anonymized examples of ioSENTRIX engagements. Clients are described by industry, not named.

Financial services

Web application penetration test

A multi-user web application handling sensitive financial data, tested beyond the OWASP Top 10 for business logic flaws, with remediation guidance that kept the launch on schedule.

Read the case study →

Advisory services

Full-stack penetration test

A Citrix-hosted web application handling legal and financial data, tested across the application, its dependencies, infrastructure and internal network.

Read the case study →

Passenger rail

CBTC system penetration test

A communication-based train control system, where testing found vulnerabilities in its segmented network and proprietary software.

Read the case study →

Track record

Numbers you can check

Ratings you can verify on G2 and Clutch.

4.9 / 5

on G2 from 12 verified reviews

5.0 / 5

on Clutch, Premier Verified

2017

founded; CREST-accredited, ISO 27001 certified, SOC 2 Type 2 attested

Independently verified

Credentials held by the firm

Every engagement runs inside a company whose methods and own security are checked by outside bodies.

CREST-accredited for penetration testing

CREST assesses the firm's testing methodology, quality assurance and handling of client data.

View our CREST listing →

SOC 2 Type 2 attested

An independent auditor tested our own security controls over time.

Request the SOC 2 report →

ISO/IEC 27001 certified

Our information security management system is certified to ISO/IEC 27001.

View in our trust center →

Recognized independently

Penetration Testing Solution of the Year, 2026 CyberSecurity Breakthrough Awards. G2 High Performer, Fall 2026.

Award announcement →See our G2 reviews →

Founded in 2017.

Our commitments

What you can count on

Four promises we make on every testing engagement.

Free retest of every fixOnce your team fixes a finding, we test it again at no extra cost and update the report.
A fixed priceThe quote you sign is what you pay. The price only changes if you change the scope.
A report your auditor acceptsIf your auditor has questions about the report, we answer them and update it until it is accepted.
A reply in under an hourSend the form and we reply within an hour during US business hours.

Get a scoped quote

For your buying team

Everything your reviewers will ask for

Security, finance and procurement each need something different. Forward this page, or pull what each reviewer needs.

For security

Sample report

See exactly what you get: findings, proof of concept, fixes and retest results.

Download the sample report (PDF) →

For vendor risk

Trust center

Our SOC 2 Type 2 report and security documentation for your vendor review.

Open the trust center →

For procurement

Procurement pack

Master services agreement, sample statement of work, certificate of insurance and W-9.

Request the procurement pack →

For your team

Share this page

Send the link to the people who need to sign off.

Who you work with

Who does the work

Senior security engineers do the hands-on work and write up the results, so the person who found an issue explains it to your team.

Certified engineers

Each engineer holds one or more of OSCP, OSWE, OSCE, CISSP, CISA or AWS security certifications.

Accredited firm

ioSENTRIX is CREST-accredited for penetration testing, ISO/IEC 27001 certified and SOC 2 Type 2 attested.

Since 2017

Founded in 2017, with security work for Fortune 100, financial services, insurance and SaaS companies.

Not sure which penetration test you need?

We reply in under an hour · no sales pitch

Scope my penetration test

Standards

Frameworks we test and map to

◆OWASP Top 10:2025◆OWASP API Security Top 10 2023◆OWASP WSTG v4.2◆OWASP MASVS v2.1◆PTES◆NIST SP 800-115◆PCI DSS v4.0.1 Requirement 11.4

FAQ

Frequently asked questions

How long does a penetration test take?

It depends on scope. A typical web application penetration test takes 1–2 weeks, and a typical red team exercise takes 4–6 weeks; other tests run from days to weeks. We reply in under an hour during US business hours; scope, a timeline and a fixed quote follow the scoping call, and findings appear on the PTaaS platform as testing progresses.

Which standards do you follow?

We follow established methods such as PTES, NIST SP 800-115 and the OWASP Web Security Testing Guide. Findings are mapped to the OWASP Top 10:2025, the OWASP API Security Top 10 2023 and, where it applies, PCI DSS Requirement 11.4.

Do SOC 2, ISO 27001 and PCI DSS require a penetration test?

PCI DSS v4.0.1 Requirement 11.4 requires internal and external penetration testing. SOC 2 and ISO/IEC 27001 do not name penetration testing as a mandatory control, but auditors and customers often ask for one as evidence. Read SOC 2 penetration testing requirements.

Can we share the report with customers and auditors?

Yes. The report summarizes scope, method and results for executives and auditors, and gives engineers the technical detail for each finding. It comes from a CREST-accredited firm that is ISO/IEC 27001 certified and SOC 2 Type 2 attested.

What is penetration testing as a service?

PTaaS delivers penetration testing on a platform rather than as a one-off project: findings appear in real time, sync to JIRA, and retests run in the same place. It suits teams that test often. See penetration testing as a service.

Resources

Go deeper before you scope a test

Practical guides from our testers on the questions buyers ask most.

Guide · 5 min read

What Is a Penetration Test? Definition, Benefits, and Why It Matters

Security breaches are increasing significantly. Penetration testing can however help you discover and revert attacks. See what a pen test means and…

Read the guide →

The five stages of penetration testing: reconnaissance, scanning, vulnerability assessment, exploitation and reporting

Guide · 10 min read

The 5 Stages of Penetration Testing: Phases, Steps and Process Explained

The five stages of penetration testing explained step by step, mapped to the seven PTES phases and NIST SP 800-115, and what the last stage should…

Read the guide →

Guide · 5 min read

Vulnerability Assessment vs Penetration Testing - How are they different? A Quick Guide

Compromise assessment and penetration testing are wholly separate and cover the distinct security testing aspect. We've combined their key…

Read the guide →

Keep exploring

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Ready when you are

Find out what an attacker can reach

Tell us what you need tested. We reply in under an hour during US business hours, and a senior engineer follows with scope, timeline and a fixed quote.

A reply in under an hour · Fixed quote in writing before work starts · Your details are never shared