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Our partners

Our mission: Secure innovation together

We harness the power of the crowd to fortify your digital assets. Facilitate seamless interaction between your organization and a world-class talent pool of cybersecurity experts, while ensuring the best data, privacy and regulatory practices.

What we offer

Ōban - Mission Operations Centre

Engineered to cater to a diverse range of security needs. From expansive, crowd-sourced initiatives to targeted, closed-network operations, Ōban is your partner in achieving unparalleled cybersecurity resilience.

Kitsune - Adaptive Bug Bounty Missions

Choose the scale and scope of your bug bounty missions. Catering to both open and closed network environments, Kitsune allows you to run adaptive bug bounty missions to engage with a wider community or a select group of experts based on your security needs and policies.

Oni - Penetration Testing

Opt for either crowd-sourced penetration testing to harness diverse perspectives and skills, or conduct more controlled testing within a closed network. Our platform is designed to accommodate your operational preferences, ensuring optimal outcomes in every security venture.

Kansei - Holistic Audits

We believe in a holistic approach to security. Our auditing services are designed to provide you with a comprehensive overview of your digital infrastructure. By analyzing your systems from every angle, we ensure that no stone is left unturned.

Why choose Yokai?

Global talent pool

Access a diverse range of skilled cybersecurity experts worldwide. Connect to the brightest minds in the industry.

Customizable hosting solutions

Choose self-hosted, cloud-based, or hybrid hosting to align with data sovereignty, compliance, and security needs.

Open vs closed network operations

Seamlessly switch between open network engagements for broad community collaboration and closed settings for focused operations.

Open source and open standards

Trust a platform built on transparency and adaptability, aligning with the highest standards of security and interoperability.

End-to-end encryption

Guarantee the utmost security and privacy in communications, safeguarding sensitive operational details.

Real-time insights and reports

Stay informed with detailed, up-to-date reports and analytics for a clear understanding of your security status.


Ross Plummer Yokai

Ross Plummer

Chief executive officer

With 15+ years in branding and marketing, he most recently served as CMO at TUGA Innovations, overseeing the brand launch and stock market offerings. Previously led global campaigns for Nike, Intel, Netflix, Heineken, and Under Armour. Managed Nike's Global Football division, led Integrated Production at R/GA London, and oversaw Ridley Scott's operations in Amsterdam.

Chaitanya Yokai


Founder & Chief technology officer

Chaitanya, Yokai's Co-founder and CTO, brings over a decade of expertise in development and security, specializing in Application Security, Vulnerability Research, Fuzzing, and Exploit Development. He focuses on vulnerability research and fuzzing for Smart Contracts, MacOS/iOS platforms, and Blockchain Security. Chaitanya has reported numerous vulnerabilities in Apple iOS/macOS Core frameworks and has published valuable tools for vulnerability research on Github and .

Ranjeet Yokai

Ranjeet Sengar

Founder & Chief operating officer

Ranjeet, Yokai's Co-founder and COO, is a seasoned UI/UX Designer and front-end engineer with over 12 years of diverse experience. His expertise spans fintech, private wealth management, advertising, and design agency startups, contributing to over 50+ brands, websites, and dashboard projects.

Explore his portfolio on Behance.



Senior Front End Developer

Tejaswini has over 14+ years of experience building front-end applications for fintech unicorns, digital marketing agencies and cybersecurity firms. Her previous experiences include Brillo, Neev, FREO and Eagle Owl leading massive teams in conceptualising and execution.

Pradeep Atmaram

Pradeep Atmaram

Chief growth officer

Pradeep, Yokai's Chief Growth Officer, brings over 10 years of marketing leadership across Singapore, India, and the Middle East, with expertise in web3 startups, private banks, fintech, and unicorns in the APAC region. His work has been featured in publications like Coindesk, Cointelegraph, Bloomberg, TechCrunch, and Reuters, among others.


John Filipe

Chief creative officer

John Filipe is a creative technologist, futurist and multi-disciplinary Creative Director. He has made a name for himself articulating brand strategy and product design in the tech space and has directed numerous global campaigns for brands as diverse as Nike, Audi and Polaroid to name a few.


António Câmara

Advisory board member

In 2000, Antonio Camara co-founded YDreams and was the company's CEO until 2015. YDreams developed over 1500 projects in 40 countries for 50 Fortune 500 companies. YDreams holding includes three public companies: YDX and Ynvisible (both listed in Toronto and Frankfurt), and Azorean (listed in Euronext Paris).

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