TAC Security adds Anthropic & Perplexity AI clients

TAC Security added Anthropic, Perplexity AI, Replit, Odoo and Litera as clients for its ESOF AppSec service in April, expanding its roster in the AI and technology sector.

The organisations signed up for application security assessment work under the ESOF AppSec offering, which reviews software security posture and identifies vulnerabilities.

The client wins place TAC Security alongside a group of fast-growing software and AI businesses at a time of increasing scrutiny of software security across the sector. Companies developing AI products and large software platforms face growing pressure to show that their systems have been independently assessed as their products become more widely used.

AppSec demand

Application security testing has become more prominent as AI companies release products faster and operate increasingly complex software environments. That has increased demand for third-party reviews of code, systems and development processes, particularly when customers, business partners and regulators want evidence of external checks.

Based in New Delhi, TAC Security focuses on vulnerability management and application security. Its ESOF AppSec service is designed to help organisations assess weaknesses in applications, support compliance work and provide external validation of security controls.

The latest client additions span different software profiles. Anthropic and Perplexity AI are among the better-known names in generative AI, while Replit focuses on coding tools, Odoo provides business software and Litera develops legal technology products.

The mix suggests TAC Security is seeking to strengthen its position with both frontier AI groups and more established software vendors. It also reflects how application security has become a shared concern across technology companies rather than a specialist issue confined to a narrow part of the market.

Security scrutiny

Industry discussion around AI and cyber defence has widened in recent months as software groups explore whether AI can change how security testing and vulnerability discovery are carried out. At the same time, the growth of AI-driven software development has raised questions about whether existing security review methods are keeping pace with the speed and scale of product releases.

Independent assessment is one response. External testing firms are positioning themselves as a check on internal development practices, especially for companies whose products are being adopted quickly by businesses and consumers.

TAC Security said it passed 10,000 clients in March and now operates in more than 100 countries. It also said it ranks among the five largest vulnerability management companies globally.

Those figures point to a business seeking to broaden its international presence while adding higher-profile names to its customer list. Winning contracts from AI companies can bring particular visibility because the sector is under close watch from customers, investors and policymakers over issues ranging from safety to security and reliability.

Market shift

Cybersecurity providers have increasingly tied their services to the rise of AI, either by selling security tools to AI developers or by using AI within their own products. The intersection has become a more competitive part of the market as buyers seek assurance that rapidly built software is not creating new weaknesses.

For software groups, outside validation can also serve a commercial purpose. Larger customers often want vendors to show that applications have been tested for security risks, and formal assessments can support procurement reviews and compliance requirements.

"The addition of leading AI and technology companies, including Anthropic and Perplexity AI, to our ESOF AppSec client portfolio reinforces a broader market reality that even the world's most advanced technology companies require independent, enterprise-grade application security assessment," said Trishneet Arora, Founder and Chief Executive Officer, TAC Security.