Rokstone Underwriting (Aventum Group (UK))

Rokstone Athena Cyber

by Rokstone Underwriting

B2BAMGA—Broker onlyEnglish

Last updated 18.07.2026

Product Details§ 01

Max Insurance Limit

Up to US$10M line size (primary or excess).

Market Focus

SME, Mid-market, Large, Multinational

Coverage

Primary & excess, Tech E&O combined

AM Best Rating

A-rated Lloyd's capacity

MGA / Direct

MGA

Policy Language

English

NIS2 / DORA Support

Not applicable.

War Exclusion

War and nation-state cyber exclusion applied (LMA-aligned).

Broker Only

Yes

Rokstone Athena Cyber: dedicated cyber, technology and media underwriting division of Aventum-owned Rokstone Underwriting; officially launched 15 July 2026.
Backed by A-rated Lloyd's capacity; line size up to US$10M.
Cyber and technology combined liability for businesses with up to US$250M revenue; acts as primary lead insurer (up to US$250M revenue) or supports excess layers (quota-share or excess basis).
Three-tier distribution: streamlined solutions for micro-SME; digital quote-to-bind platform for SME; bespoke solutions for mid-market and large corporate.
Core sectors: agriculture, construction, financial institutions, hospitality and leisure, manufacturing, professional services, retail, technology, transportation.
Team: Debbie Hobbs (Head of Cyber, Technology & Media; ex-Miller), Lucy Barker-Hahlo (Deputy Head; ex-Mosaic), Umber O'Doherty (Cyber Counsel; ex-Miller).
Rokstone: one of the largest global MGAs; US$1.1B+ GWP across specialty lines; proprietary ATOMX technology ecosystem.

Wholesale broker-only distribution (London market MGA); no direct placement.
Primary lead limited to businesses with revenue up to US$250M; larger risks on excess/quota-share basis only.
Line size capped at US$10M.
No published proactive security services at launch.
Standard Lloyd's state-backed cyber attack exclusion applies (LMA5566/5567 per Lloyd's Market Bulletin Y5381).

Customer Contact

24/7 Crisis Hotline

Via policy documentation.

Broker Contact