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Best LLM Security Audit Companies in 2026

LLM Security Audit focuses on identifying, testing, and mitigating security risks within large language model (LLM) applications, AI agents, generative AI systems, and enterprise AI workflows. As organizations increasingly integrate LLMs into customer support, automation platforms, copilots, software development tools, and internal knowledge systems, ensuring the security, reliability, and compliance of these AI systems has become a critical business priority.

Unlike traditional application security, LLM security introduces new and evolving attack surfaces including prompt injection, jailbreak attacks, data leakage, hallucinations, insecure plugin integrations, model abuse, unauthorized tool execution, and AI supply chain vulnerabilities. Modern LLM security audits evaluate how AI systems interact with prompts, APIs, external data sources, retrieval pipelines, vector databases, and autonomous agents to uncover weaknesses that could expose sensitive information or compromise operational integrity. OWASP identifies prompt injection as the top security risk for LLM applications, highlighting the growing importance of AI security testing and governance.

Comprehensive LLM security audits typically include adversarial testing, prompt injection assessments, red teaming, AI governance reviews, compliance validation, access control analysis, model behavior evaluation, and runtime monitoring strategies. These audits help businesses strengthen AI resilience, improve regulatory readiness, protect sensitive enterprise data, and reduce risks associated with deploying generative AI in production environments. As AI agents and autonomous systems become more deeply integrated into enterprise operations, proactive AI security practices are rapidly becoming essential for safe and scalable AI adoption.

At RightFirms, we’ve curated a list of the top LLM Security Audit companies for 2026 firms that specialize in AI security testing, prompt injection defense, generative AI risk assessment, compliance auditing, and enterprise-grade AI protection strategies.

Last updated: Sep 27, 2026

Comprehensive List of LLM Security Audit Firms | Leading AI Security & Compliance Experts
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AI transformation and automation for modern enterprises

3.5★★★★★3.5 / 5
Employees11 to 50
Avg. hourly rate$151 - $200 /hr
Focus AreaLLM Security Audit
LocationAustralia

ExpandIQ helps organisations design, deploy and scale enterprise AI systems through AI consulting, workflow automation, AI engineering and governed AI implementation. Read More About ExpandIQ

AI & Web Development Company

3.5★★★★★3.5 / 5
Employees11 to 50
Avg. hourly rate< $25 /hr
Focus AreaLLM Security Audit
LocationUSA

Dasinfomedia offers mobile app development, software development, and AI solutions for businesses in Wesley Chapel & Tampa Bay, FL Read More About Dasinfomedia

Engineering End-to-End Digital Solutions.

3.5★★★★★3.5 / 5
Employees51 to 250
Avg. hourly rate$101 - $150 /hr
Focus AreaLLM Security Audit
LocationIndia

Verveo is a digital engineering and technology solutions company specializing in scalable web platforms, mobile applications, and AI-enabled systems. We design and deliver secure, high-performance solutions tailored to both B2B and B2C environments. Verveo has experience working across industries including FinTech and airport systems, where precision, reliability, and data integrity are critical.Read More About Verveo

Stress-free development: build, design, customize, integrate

3.5★★★★★3.5 / 5
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaLLM Security Audit
LocationUSA

As a full-service agency, we specialize in Shopify expertise, tailored software solutions, and seamless AI integration. Our team delivers innovative, efficient tools to enhance your store's performance, ensuring your business thrives with precision and style.Read More About DigitalSuits

Research-grade AI, software, Web3, and security R&D

3.4★★★★★3.4 / 5
Employees51 to 250
Avg. hourly rate$101 - $150 /hr
Focus AreaLLM Security Audit
LocationUSA

Dreamers Inc. is a Los Angeles research and engineering studio for hard software problems: private LLM/RAG systems, custom AI, secure data platforms, GPU infrastructure, blockchain/Web3 products, cybersecurity, scientific computing, spatial AI, and specialized applications. We work where teams need senior systems thinking, not a template app shop.Read More About Dreamers Inc.

Full-Stack AI Enablement For Future-Ready Businesses.

3.4★★★★★3.4 / 5
Employees2 to 10
Avg. hourly rate$26 - $50 /hr
Focus AreaLLM Security Audit
LocationUK

Full-Stack AI Enablement For Future-Ready Businesses. From adaptation to expansion, we are your partners throughout the digital growth cycle. Read More About ValueStreamAI

Make It Better

3.2★★★★★3.2 / 5
Employees11 to 50
Avg. hourly rate$26 - $50 /hr
Focus AreaLLM Security Audit
LocationUK

Escort SEO UK offers expert adult SEO, link building, web design, development, and e-commerce solutions for escort directories, cam sites, and NSFW platforms. Read More About EscortSEO UK

AeroSoft Global
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Empowering businesses with digital solutions

4.2★★★★★4.2 / 5(5 reviews)
Online
Employees11 to 50
Avg. hourly rate$51 - $100 /hr
Focus AreaLLM Security Audit
LocationCayman Islands

Aerosoft Global is a Cayman Islands–based enterprise AI automation and custom software development company serving high-growth startups to enterprises worldwide. We build intelligent, scalable, and secure digital ecosystems that reduce operational costs and improve decision-making. Specializing in FinTech, Logistics, and Healthcare, we deliver agile, KPI-driven solutions with full code ownership and measurable business impact.Read More About AeroSoft Global

4.9

“Custom Development”

NilssonVerified review
Instinctools
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Your AI-powered Engineering Partner

4.9★★★★★4.9 / 5(8 reviews)
Online
Employees251 to 1000
Avg. hourly rate$26 - $50 /hr
Focus AreaLLM Security Audit
LocationUSA, Germany

Meet Instinctools - a global AI-powered software engineering company with over 25 years of experience. Read More About Instinctools

5.0

“A Highly Collaborative Technology Partner for Our Digital Health Platform”

Sally Maddah, Founder at Hiya Healthcare
Protonshub Technologies
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Creating new dimensions

4.9★★★★★4.9 / 5(3 reviews)
Online
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaLLM Security Audit
LocationIndia, USA

Protonshub is a custom software development company for new-age businesses. Our team works with organizations across the globe to design and deliver exceptional digital experiences.Read More About Protonshub Technologies

5.0

“Working with Protonshub Technologies was seamless; they delivered timely, high-quality”

Ravimohan Mishra, CEO & Co-Founder

Let's Connect Experience!

3.7★★★★★3.7 / 5(1 reviews)
Employees11 to 50
Avg. hourly rate$51 - $100 /hr
Focus AreaLLM Security Audit
LocationIndia

Krazio Cloud is a global technology solutions provider specializing in AI, custom software development, AR/VR, and data-driven digital platforms. We help businesses scale with intelligent automation, personalized customer experiences, and scalable enterprise systems built for long-term growth.Read More About Krazio Cloud Pvt. Ltd.

5.0

“Exceptional AI Agent Development for Healthcare Automation”

Devansh Pandya, Project CordinatorVerified review

Your imagination Amplified, Digitally.

3.0★★★★★3.0 / 5(1 reviews)
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaLLM Security Audit
LocationIndia

Smoking Chimney Studios weaves storytelling with the power of AI, UIUX and advertising to build meaningful connections for people; headquartered in Pune, India, and with a global presence from Berlin, Germany, we are much more than a creative agency, tech consultancy, or ad firm being a partner who brings your vision to life.Read More About Smoking Chimney

4.8

“Great Experience”

Komal Agarwal, FounderVerified review

The customer experience transformation partner

4.0★★★★★4.0 / 5
Employees10,000+
Avg. hourly rate$151 - $200 /hr
Focus AreaLLM Security Audit
LocationUSA

TELUS Digital is the customer experience transformation partner to the world’s most admired brands. Our diverse team weaves data, technology and human ingenuity to deliver differentiated customer journeys, drive operational effectiveness and scale AI solutions with meaningful value and positive impact.Read More About TELUS Digital

AI & Custom Software Development Experts

4.2★★★★★4.2 / 5
Employees51 to 250
Avg. hourly rate$51 - $100 /hr
Focus AreaLLM Security Audit
LocationPoland

We’re one of Europe’s most forward-thinking software development partners, supporting you from discovery and architecture through design, development, and long-term evolution. Whether you’re launching a new product, modernizing existing systems, or enhancing apps, we prioritize efficiency, scalability, measurable value. We create digital products that improve acquisition, engagement, and retention, driving higher ROI and customer lifetime value.Read More About TeaCode

Excellent in Every Block

4.2★★★★★4.2 / 5
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaLLM Security Audit
LocationVietnam

Founded in 2022, Varmeta is a leading technology company based in Vietnam, specializing in Blockchain, AI, and AR/VR solutions. In just a few years, we’ve grown into a team of 100+ skilled engineers and researchers, including three PhD experts specializing in blockchain architecture, distributed computing, and data intelligence. Contact with us: https://www.var-meta.com/Read More About Var Meta., JSC

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