Who is Cinthia Portugal?
Cinthia Portugal was the VP of Global Marketing at Zenity, the AI agent security company, through its $125M Series C. She left in October 2026 and has joined Linx Security. Zenity secures the AI agents and copilots companies build and buy, from Microsoft Copilot to custom agents.
About Cinthia Portugal
She has more than 20 years in technology marketing and describes her focus as category creation. In her goodbye post she wrote that her team helped build a new category and make Zenity its leader, with a marketing engine that hit ambitious marketing-sourced pipeline goals.
About Zenity
Zenity secures the AI agents and copilots companies build and buy, from Microsoft Copilot to custom agents. It raised a $125M Series C led by Norwest in August 2026, with Qumra, SoftBank Vision Fund 2, Hitachi Ventures and LG Technology Ventures. Zenity says it tripled revenue in each of the last 2 years and is on track to triple again.
Why Cinthia is on the cover
AI agent security barely existed as a budget line 2 years ago. Cinthia built the category's marketing while Zenity tripled its revenue, then moved on to Linx Security.
Questions about Cinthia and Zenity
- What does Cinthia Portugal do at Zenity?
- Cinthia Portugal was the VP of Global Marketing at Zenity, the AI agent security company, through its $125M Series C. She left in October 2026 and has joined Linx Security.
- What does Zenity do?
- Zenity secures the AI agents and copilots companies build and buy, from Microsoft Copilot to custom agents.
- How much has Zenity raised?
- Zenity raised a $125M Series C led by Norwest in August 2026.

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