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Note - Oyster Security has now been merged into Fusang as of 2025 and is no longer operating. Oyster Security, a part of Portcullis Group was established in 2014 to support the cybersecurity governance for Portcullis Group of companies. It now seeks to provide a complete spectrum of cybersecurity knowledge and consultancy services to small and medium enterprises, family offices, private clients and high net worth individuals.

Oyster Security Questions

The Oyster Security annual revenue was $3 million in 2026.

Oyster Security is based in Singapore, Central Singapore.

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