
Nisien.ai provides advanced AI and human intelligence for effective and ethical online safeguarding. Their market-leading HERO suite enables customers to detect online threats at scale, defend their brand and intellectual property, and resolve issues before they escalate. They also offer consultancy services to help develop mitigating strategies and implement community guidelines. Nisien.ai differentiates itself through its focus on community integration over punishment, using fine-tuned GenAI to support positive discussions and retain users, with a scientific approach showing toxic interactions reduced by up to 65%. The company is trusted by various entities, demonstrating their commitment to inclusion and customer wellbeing.

Nisien.ai provides advanced AI and human intelligence for effective and ethical online safeguarding. Their market-leading HERO suite enables customers to detect online threats at scale, defend their brand and intellectual property, and resolve issues before they escalate. They also offer consultancy services to help develop mitigating strategies and implement community guidelines. Nisien.ai differentiates itself through its focus on community integration over punishment, using fine-tuned GenAI to support positive discussions and retain users, with a scientific approach showing toxic interactions reduced by up to 65%. The company is trusted by various entities, demonstrating their commitment to inclusion and customer wellbeing.
Founded: 2023 — Cardiff, Wales
Core product: HERO Platform (including HERO Detect) — real-time detection and classification of online harms
Founders / leadership: Prof. Matt Williams; Prof. Pete Burnap; Dean Doyle; Lee Gainer
Funding: Seed round announced 2025-03-03 — investors: Foresight Group and Development Bank of Wales
Mission: Effective and ethical online safeguarding that supports digital wellbeing and healthy debate without censorship
Online harms, content moderation, digital safety and wellbeing on social platforms.
2023
Online safeguarding / AI
Announced as a joint investment via the British Business Bank's Investment Fund for Wales (through Foresight Group) alongside Development Bank of Wales.
“Received joint investment via the British Business Bank's Investment Fund for Wales through Foresight Group alongside Development Bank of Wales.”