Top Application Security Testing Companies

Researched by:Goodfirms Research TeamUpdated:September 13, 2026

Goodfirms has reviewed 1,047 Application Security Testing Companies as of September 2026 across 80 countries. The top-ranked firm is QA Mentor (5.0 stars, 8 verified reviews, < $25/hr, founded 2010, NYC). Across the category, the median hourly rate is $37, median client rating is 4.8, and 39% of firms employ 50+ members. Explore the vetted Application Security Testing Companies below, compare their strengths, and connect with the provider best suited to your requirements.

Application security breaches are no longer isolated incidents — they are business-defining events. Application security companies today operate across an expanded attack surface shaped by AI-generated code, third-party APIs, and cloud-native deployments — and the need for trusted application security testing partners has grown sharper across every industry. The firms on this list deliver application security testing services that cover the full vulnerability spectrum — from static code analysis to dynamic runtime testing and compliance validation. Each uses proven application security testing tools to surface what automated scans miss. Goodfirms evaluated these companies on methodology, industry experience, and their ability to protect what you have built.

Goodfirms has verified 1,047 Application Security Testing Companies - part of 5,425+ Software Testing Companies reviewed across 80 countries, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.

Top 10 at Glance

Compare the highest-ranked firms first side by side.

Rank

Company

Rating

Reviews

Hourly Rate

Team Size

Founded

Location

Action

List of Best Companies for App Security Testing

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Frequently Asked Questions

What do application security testing companies do?

Application security testing companies assess software for vulnerabilities, misconfigurations, and security weaknesses that could be exploited in production. They design test scenarios that simulate real-world attack techniques — going well beyond automated scanning to include manual code review, threat modeling, and runtime analysis. Top application security testing companies work across web, mobile, API, and cloud environments, identifying risk before it reaches users. Their role is not just to find what is broken but to give development and security teams a clear, actionable picture of where exposure actually exists.

What services do application security testing companies offer?

Application security testing services typically span static application security testing (SAST), dynamic application security testing (DAST), interactive testing (IAST), penetration testing, API security assessment, threat modeling, and compliance validation against frameworks like OWASP, PCI-DSS, and HIPAA. Many of the best application security testing services providers also offer mobile application security audits, cloud configuration reviews, and security integration within CI/CD pipelines for continuous coverage. The scope varies by provider, but the common thread across top AST companies is identifying vulnerabilities at every layer of the application stack before they reach production.

Why is application security testing important for businesses and software applications?

A single exploited vulnerability can result in data breaches, regulatory fines, operational downtime, and reputational damage that takes years to rebuild. Application security testing companies help businesses identify and resolve weaknesses before attackers find them — making security validation a commercial necessity, not just a technical one. As AI-generated code, third-party APIs, and cloud-native architectures expand the attack surface, the risk of shipping insecure software has grown considerably. Application security testing solutions give businesses verifiable evidence that their software holds up against the threats their industry actually faces.

What types of security vulnerabilities can application security testing companies identify and prevent?

Top application security testing companies are equipped to surface a wide range of vulnerabilities, including:

SQL injection and cross-site scripting (XSS) attacks
Broken authentication and session management weaknesses
Insecure API endpoints and improper data exposure
Security misconfigurations across cloud and server environments
Hardcoded credentials and sensitive data leakage in source code
Inadequate access controls and privilege escalation paths
Vulnerable third-party dependencies and outdated libraries
Business logic flaws that automated scanning tools routinely overlook
Injection attacks targeting AI and machine learning model inputs

How do application security testing companies improve software security and compliance?

Trusted application security testing companies bring structure to what is otherwise a fragmented process. They map findings against established compliance frameworks — OWASP Top 10, PCI-DSS, GDPR, HIPAA — and provide prioritized remediation guidance that development teams can act on immediately. Beyond single assessments, the best application security testing companies integrate security validation within CI/CD pipelines, catching vulnerabilities at the code commit stage rather than at release. The result is software that meets both internal security standards and the external regulatory requirements that auditors and enterprise clients increasingly expect.

What are the benefits of outsourcing application security testing services?

In-house teams carry inherent blind spots — familiarity with how software was built can obscure how it might be attacked. Outsourcing to application security testing companies brings independent scrutiny, specialist tooling, and adversarial thinking that internal QA rarely replicates. Best application security testing services providers offer access to certified security professionals, up-to-date knowledge of emerging threats, and flexible engagement models that scale with project complexity. For growing businesses without dedicated security functions, outsourcing application security testing solutions delivers enterprise-grade coverage without the overhead of building and maintaining that capability permanently in-house.

What should businesses consider when choosing an application security testing company?

Selecting the right partner from available application security testing companies requires evaluating several dimensions beyond price. Methodology transparency matters — ask how they conduct assessments and what frameworks they test against. Relevant industry experience in your sector shapes how well their findings reflect real-world risk. Certification credentials such as OSCP, CEH, or CREST signal technical credibility. Reporting quality separates top AST companies from generic scan-and-report vendors. Integration capability within your existing development pipeline, clear escalation protocols, and a verifiable track record with comparable software environments should all inform the final decision.

How do I choose the best application security testing company for my project?

When evaluating the best application security testing companies for your specific project, assess them across:

Relevant experience with your application type — web, mobile, API, cloud, or AI-driven
Certifications held by their security engineers — OSCP, CEH, CREST, or equivalent
Methodology depth — manual testing capability alongside automated application security testing tools
Compliance frameworks they test against — OWASP, PCI-DSS, HIPAA, GDPR
Quality and clarity of sample security assessment reports
Flexibility to integrate within your development and release workflow
Client references from comparable industries or application environments

What questions should I ask before hiring an application security testing company?

Before engaging any of the application security testing companies on your shortlist, these questions will sharpen your evaluation considerably. Ask how they distinguish between automated scanning and manual expert assessment — and what proportion of their process each represents. Ask which compliance frameworks their application security testing services cover. Ask what their remediation support looks like after findings are delivered. Ask how they handle sensitive data encountered during testing. Ask whether their application security testing solutions can integrate into your CI/CD pipeline. The answers separate trusted application security testing companies from commodity vendors quickly.

How much do application security testing services typically cost?

Hourly rates across top AST companies range from $25–$50 for offshore teams to $100–$200 for North American specialists. If you go for fixed costs, a single web application costs $5,000–$30,000, mobile application testing costs $6,000-$30,000, and cloud & infrastructure testing costs $10,000-$50,000 annually. Costs vary significantly based on application complexity, scope, and engagement model.

How long does application security testing usually take for software projects?

A focused web application penetration test typically takes 1–3 weeks. Comprehensive security audits covering multiple application layers, compliance mapping, and manual expert review generally run 3–6 weeks. Ongoing security testing integrated within CI/CD pipelines operates continuously with sprint-aligned reporting cycles. On the contrary, if you prefer automated scans, it can just take a few minutes to test an application. Timelines depend on application complexity, scope, and the depth of coverage required.

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The Magical Quadrant

Hover any bubble for the firm's exact scores. Filter the view using the controls on the right.

360-PERFORMANCE VIEW (Y) →

0255075100

Industry ContendersIndustry LeadersUpcoming AchieversMarket Influencers

0255075100

CORE COMPETENCIES (X) →

The four quadrants explained

Each card shows the count of firms in that quadrant and the top 5 by composite score.

Industry Leaders

Top-right · Both axes ≥ 50

3FIRMS

Strong on both Core Competencies and 360-Performance. These firms have proven track records, deep specialisation, and solid client outcomes. Default recommendation for most buyers.

Top 5 by composite score

1Next Big Technology(NBT)82 / 54 2EffectiveSoft72 / 53 3BugRaptors58 / 53

Industry Contenders

Top-left · Y ≥ 50, X < 50

5FIRMS

Strong execution but broader service mix. High-quality generalists - good fit if your project crosses multiple disciplines in one engagement.

Top 5 by composite score

1AppSierra40 / 55 2Impact QA services LLC35 / 52 3IR Solutions36 / 51 4Abstracta33 / 50 5QA Mentor22 / 52

Market Influencers

Bottom-right · X ≥ 50, Y < 50

26FIRMS

Deeply specialised but with moderate market presence. Often the right pick when specialisation matters more than scale - boutique shops with deep technical chops.

Top 5 by composite score

1DataArt100 / 48 2Testlio100 / 42 3Forte Group100 / 40 4Oxagile100 / 37 5BIT Studios100 / 36

Upcoming Achievers

Bottom-left · Both axes < 50

54FIRMS

Newer entrants and smaller boutiques. Higher risk but often the best price-performance - particularly for early-stage startups or non-mission-critical projects.

Top 5 by composite score

1PrimeQA Solutions49 / 49 2Shaligram Infotech45 / 46 3AXON ACTIVE49 / 39 4UTOR - QA services and Software Testing company39 / 48 5Qualysec Technologies Pvt. Ltd.44 / 39

The Industry Leaders in detail

The 3 highest-scoring firms in the Industry Leaders quadrant. Each has both Core Competencies and 360-Performance ≥ 50. Click any card for the full profile.

1LEADER

Next Big Technology(NBT)

5.05 reviews

Visit Website

< $2550 - 2492009Jaipur, Rajasthan, India

Core Competencies82

360-Performance54

2LEADER

EffectiveSoftSponsored

5.01 reviews

Visit Website

$50 - $99250 - 9992003Warsaw, Masovian Voivodeship, Poland

Core Competencies72

360-Performance53

3LEADER

BugRaptors

4.98 reviews

Visit Website

< $25250 - 9992016Mohali, Punjab, India

Core Competencies58

360-Performance53

How firms are placed on the matrix

Every position on this chart is the output of the Goodfirms ranking algorithm - a weighted composite of signals across two axes. The algorithm is recomputed regularly and is fully documented.

Sponsorship does not affect placement. PRO members receive visible badges and ad placements, but their algorithmic scores are calculated identically to free listings.

Read the full methodology

Algorithm at a glance

X-axis (Core Competencies): Service Focus Ratio + Portfolio Depth + Quality + Experience

Y-axis (360-Performance): Client Reviews + Market Presence + Goodfirms Score

Missing signals are excluded from a firm's score, not substituted with defaults - weights redistribute across remaining inputs

Recency decay over the last 18 months keeps stale reviews from dominating

Eligibility floor: ≥ 1 published review in this category scope

5 countries with the best Value Score for hiring.

Ranked by a composite blending firm count (supply), average rating (quality), and average hourly rate (cost). Affordability is weighted highest (50%), so this surfaces genuinely affordable destinations - not just the biggest markets.

IN★ TOP PICK

India

Home to 361 vetted firms, with an average rate of $42/hr and a 4.8★ client rating.

Egypt

Home to 8 vetted firms, with an average rate of $37/hr and a 5★ client rating.

Pakistan

Home to 31 vetted firms, with an average rate of $43/hr and a 5★ client rating.

Nepal

Home to 5 vetted firms, with an average rate of $34/hr and a 5★ client rating.

United Kingdom

Home to 43 vetted firms, with an average rate of $52/hr and a 5★ client rating.

Firms43

Avg Rate$52/hr

Value Score79 / 100

Where the firms are.

Bubble size shows how many firms each country has; colour shows its average hourly rate. Tap any country for its firm count, average rate, rating, and Value Score.

Loading map…

Average hourly rates by region.

Where you hire affects what you pay by up to 3×. Comparable quality is available across regions - the rate gap between the priciest and cheapest is the single biggest lever on a project budget.

Average hourly rate · USD

AUOceania$94/hr$94

USNorth America$66/hr$66

GBWestern Europe$65/hr$65

ZAAfrica$62/hr$62

MXLATAM$57/hr$57

SGAsia Pacific$52/hr$52

UAEastern Europe$52/hr$52

INSouth Asia$42/hr$42

What the gap actually buys you

The rate gap between the highest- and lowest-cost regions is largely a cost-of-living and labor-market gap - not a quality gap. Top-tier firms in lower-cost regions routinely deliver work competitive with premium markets at a fraction of the cost.

That said, time-zone overlap, language alignment, and IP protection vary by region. Eastern Europe and LATAM hit a sweet spot: meaningful cost savings with same-day overlap for US/EU clients.

~70%

Typical cost savings when moving a $100K/year dev contract from a premium market to a top value destination - comparable skill, comparable delivery quality.

All countries ranked by Value Score.

Every country with 100+ vetted firms in this category, ranked by Value Score.

Country	Firms	Avg Rate	Avg Rating	Value Score	Action
INIndia	361	$42/hr	4.8	81	View firms
USUnited States	229	$64/hr	4.9	77	View firms

INIndia

361 firms$42/hr4.8

Value Score81 / 100

View firms

USUnited States

229 firms$64/hr4.9

Value Score77 / 100

View firms

Match by work-hour overlap with your team.

Cost matters - but so does being able to actually talk to your developer during your workday. Here are the best destinations for each major hub.

If you're in US (PT/ET)Recommended

Look for nearshore LATAM partners - same-day collaboration, similar time zones, and 50-60% cost savings vs domestic.

MXMexico~7h overlap

ARArgentina~6h overlap

BRBrazil~5h overlap

CACanada~8h overlap

If you're in Europe (CET/GMT)Recommended

Eastern Europe is your sweet spot - 1-2h time zone shift, EU GDPR alignment, and 40-50% lower rates than Western Europe.

PLPoland~8h overlap

UAUkraine~7h overlap

RORomania~7h overlap

ZASouth Africa~8h overlap

How firms are placed on the matrix

Every position on this chart is the output of the Goodfirms ranking algorithm - a weighted composite of signals across two axes. The algorithm is recomputed regularly and is fully documented.

Sponsorship does not affect placement. PRO members receive visible badges and ad placements, but their algorithmic scores are calculated identically to free listings.

Read the full methodology

Algorithm at a glance

X-axis (Core Competencies): Service Focus Ratio + Portfolio Depth + Quality + Experience

Y-axis (360-Performance): Client Reviews + Market Presence + Goodfirms Score

Missing signals are excluded from a firm's score, not substituted with defaults - weights redistribute across remaining inputs

Recency decay over the last 18 months keeps stale reviews from dominating

Eligibility floor: ≥ 1 published review in this category scope

Countries with the best Value Score for testing services hiring.

Ranked by a composite score blending firm count (supply), average rating (quality), and median hourly rate (cost). Affordability is weighted highest (50%), so this list surfaces actually affordable destinations rather than just-big markets.

Budget leader

India · $0-24/hr

126 firms in this tier - more than any other country, averaging 4.9 ★. Top picks: Algoworks, hikeQA, Zestbrains Pvt Ltd.

Mid-tier leader

United States · $50-99/hr

43 firms in this tier - more than any other country, averaging 5.0 ★. Top picks: UplineSoft, Vention, ETEAM.

Top tier leader

United States · $150+/hr

13 firms in this tier - more than any other country. Top picks: Plasma Computing Group, SPR, Globaltek Systems & Services Inc.

Loading heatmap…

Cell intensity (firm density):

Low

High

Best Value marks the densest, highest-rated, most-affordable cell per row

Top 15 recommended companies by Value Score.

Ranked across all heatmap cells - each blends a low hourly rate, a strong rating, and sufficient review volume.

Infograins

5.0100 reviews

88.6VALUE

India$25 - $49/hr50 - 249

India< $25/hr250 - 999

✓ Best Value

Techmango Technology…

4.934 reviews

87.7VALUE

United States< $25/hr50 - 249

India< $25/hr10 - 49

India< $25/hr10 - 49

✓ Best Value

Rudra Innovative Sof…Pro Verified

5.014 reviews

86.4VALUE

India< $25/hr50 - 249

India< $25/hr50 - 249

India< $25/hr50 - 249

India< $25/hr250 - 999

India< $25/hr250 - 999

United States< $25/hr250 - 999

India< $25/hr10 - 49

Vietnam< $25/hr50 - 249

United States$25 - $49/hr50 - 249

India< $25/hr1,000 - 9,999

✓ Best Value

View all 1,047 firms

How the heatmap is built

Every cell in the grid above is the count of firms in (place × hourly-rate tier). Firms are placed by their published hourly rate; those without a disclosed rate are not plotted.

Top company names per cell are surfaced by Value Score - a weighted blend of affordability (50%) + rating (35%) + review volume (15%).

The "Best" ribbon marks the cell in each row where firm density, ratings, and affordability line up best - the densest, highest-quality combination.

Read the full methodology

Value Score · per firm

ValueScore = 0.50 × Affordability

+ 0.35 × Rating

+ 0.15 × Review Volume

// All sub-scores normalized 0-100

// Affordability = (1 - rate/$200) × 100

// Rating = (rating - 3) / 2 × 100

// Volume = log10(reviews+1)/log10(200) × 100

Top Application Security Testing Companies

Top 10 at Glance

List of Best Companies for App Security Testing

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Frequently Asked Questions

What do application security testing companies do?

What services do application security testing companies offer?

Why is application security testing important for businesses and software applications?

What types of security vulnerabilities can application security testing companies identify and prevent?

How do application security testing companies improve software security and compliance?

What are the benefits of outsourcing application security testing services?

What should businesses consider when choosing an application security testing company?

How do I choose the best application security testing company for my project?

What questions should I ask before hiring an application security testing company?

How much do application security testing services typically cost?

How long does application security testing usually take for software projects?

Trending insights from Goodfirms

The four quadrants explained

Top 5 by composite score

Top 5 by composite score

Top 5 by composite score

Top 5 by composite score

How firms are placed on the matrix

5 countries with the best Value Score for hiring.

India

Egypt

Pakistan

Nepal

United Kingdom

Where the firms are.

Average hourly rates by region.

Average hourly rate · USD

What the gap actually buys you

All countries ranked by Value Score.

Match by work-hour overlap with your team.

How firms are placed on the matrix

Found your target region?

Countries with the best Value Score for testing services hiring.

Top 15 recommended companies by Value Score.

How the heatmap is built

Found your target region?