About us We Are Plainsea.

Marko Simeonov

CEO

Marko is responsible for the leadership of Plainsea in the role of CEO. He has previously occupied the position of CEO at AMATAS – a leading cybersecurity service provider with teams based in Europe and the USA. Marko has worked in the field of cybersecurity since 2017 and brings to the team broad amounts of knowledge and experience in providing managed cybersecurity services and innovations in the field. With this experience and ideas in mind Plainsea was founded as the next innovation in automating, simplifying and systematizing the provision of services in the field of cybersecurity. Starting with the goal of creating a tool to aid cybersecurity professionals and boost their productivity and efficiency has now evolved into Plainsea as a fully-fledged cybersecurity platform.

Atanas Simeonov

Principal Investor

Atanas Simeonov is a serial entrepreneur and investor, the owner of Ocean Investments and S Group International, which comprises a diverse portfolio of investments in sectors including technology, security and real estate. The entire group has more than 5000 employees. In 2022 Atanas Simeonov co-founded Plainsea alongside Marko Simeonov and Angel Angelov as the first platform aimed at professionals in aiding them to deliver cybersecurity solutions to their clients through both automated and manual means. With its large array of tools and features Plainsea is looking to lead the race in becoming the preferred platform for all things cybersecurity for both cybersecurity providers and their clients.

Angel Angelov

CTO

As the CTO at Plainsea, Angel is entrusted with steering the technological direction of the company, leveraging his background in innovative product creation. With a rich history of architecting and developing cutting-edge solutions, holding pivotal roles in leading hi-tech companies in the US and Europe, Angel brings a wealth of expertise across various domains, including software and hardware design, cloud and mobile development, and large-scale application architecture. Before joining Plainsea, Angel served as the CTO of a leading European cybersecurity service provider. This role further fortified his knowledge in managed cybersecurity services and propelled innovations in the field.

Boris Goncharov

CSO

Boris, current CSO at Plainsea, is a renowned information security strategist and visionary, specializing in information security strategy & management, cloud security, social engineering, penetration testing and physical security. For over 20+ years, he has been leading numerous enterprise-wide security programs across industries, shaping defenses, training professionals, and advancing innovative approaches to modern cybersecurity challenges.