Tessilon Technologies - Security and software engineering for finance and AI

Reimagining software, in a way never imagined before

$2B+
Total Value Secured
50+
Audits Completed
0
Exploits Post-Audit
100%
Client Retention
Our Ethos

We don't take every project. We take the ones that matter: protocols securing billions, platforms redefining finance, AI systems that need to be right the first time.

We work with the most ambitious teams in blockchain and AI and we own the outcomes. Every audit, every line of code, every system we ship has our name on it.

Two disciplines: security and development. No distractions. We go deep, not wide. The best work comes from focus, conviction, and an unreasonable commitment to getting it right.

Software Security

We find what automated tools miss.

Our security practice is built on manual depth, adversarial thinking, and an obsession with getting it right before it goes live. We secure protocols that hold real money for real people.

Manual Code Review

Line-by-line expert analysis of smart contracts and protocol logic. Solidity, Rust, Move, Go - we read it all.

Red Teaming

Full-scope adversarial simulation. We think and act like attackers to break your system before someone else does.

White-Box Testing

Deep-access testing with full source code visibility. Formal verification, invariant testing, and threat modeling.

Incident Response

Real-time threat detection for live protocols. On-chain anomaly monitoring and rapid response when it matters most.

Software Development

We build the products that move markets.

Production-grade fintech platforms and AI-native applications for teams that ship critical infrastructure. We don't do MVPs. We do the real thing.

Fintech & DeFi

Trading platforms, lending protocols, stablecoin systems, and payment rails built for compliance and institutional scale.

AI Applications

Intelligent systems with AI at the core including autonomous agents, NLP interfaces, predictive engines, and ML-driven decision systems.

Smart Contracts

Battle-tested contracts on EVM and Solana for DeFi, tokenization, and governance. Optimized for gas, security, and upgradeability.

Infrastructure

L2 rollups, cross-chain bridges, and custom chain deployments purpose-built for high-throughput financial workloads.

The Team
Sujith Somraaj, Co-Founder and CEO of Tessilon Technologies

Sujith Somraaj

Co-Founder & CEO

Learn more →

One founder with deep expertise, amplified by the best AI.

No team of 50. No layers of management. Shipping work that used to take entire engineering teams for weeks in days.

Claude
ChatGPT
Gemini
Start a security audit or software engineering engagement with Tessilon
Work With Us

We choose who we build with. Then we go all the way.

Ready to start an engagement?

Whether you need a comprehensive security audit before launch or an engineering team to build your next product we're ready when you are.

Security Audits

Red Teaming

Fintech & DeFi

AI Applications

How We Work

Good systems outlive the people who built them. Here's how we make sure ours do.

01

Scope

We understand your system, your threat model, and what's at stake. Every engagement is scoped to your specific risk surface and business objectives.

02

Execute

Our founders go deep, augmented by AI. Manual review, adversarial testing, hands-on development with continuous communication and full transparency.

03

Deliver

Detailed findings with severity classification, remediation guidance, and re-verification. For development, production-ready code with complete documentation.