# Marc-Henri Chamay

> Marc-Henri Chamay is the London-based chair and co-founder of aosphere, which provides subscription legal and compliance information to more than 1,400 institutions worldwide. He built the business within Allen & Overy, led its 2024 carve-out backed by Inflexion and Endicott, and previously served as CEO. His career centres on turning specialist knowledge into maintained online products.

- **Role:** Chair and Co-Founder at aosphere
- **Organizations:** aosphere, Allen & Overy, Reuters
- **Nationality:** British
- **Education:** HEC School of Management
- **Known for:** Built aosphere from an idea and prototype into a business serving more than 1,400 institutional clients., Led the business’s carve-out from Allen & Overy., Reported that annual recurring revenue doubled in the two years preceding the November 2025 leadership announcement.

## Career timeline

- **Before aosphere** — Worked in financial data at Reuters; described launching its early web products in his October 2026 interview.
- **2001** — netalytics, aosphere’s first product, began as a joint venture with ISDA.
- **2002** — aosphere dates its establishment to this year; Chamay built the business within Allen & Overy.
- **2013** — Named a Financial Times Top 10 legal innovator, with a special mention recorded on his LinkedIn profile.
- **2024** — Led aosphere into independence through a carve-out backed by Inflexion and Endicott alongside Allen & Overy.
- **2024-09** — As CEO, announced the acquisition of BRP Bizzozero & Partners.
- **2025-09** — As CEO, announced the acquisition of Investment Navigator.
- **2025-11** — aosphere announced Robert McKay as next CEO and Chamay’s transition to chair.
- **2026-10** — Appeared on Legal Innovation Spotlight as chair and co-founder.

## Achievements

- Built aosphere from an idea and prototype into a business serving more than 1,400 institutional clients.
- Led the business’s carve-out from Allen & Overy.
- Reported that annual recurring revenue doubled in the two years preceding the November 2025 leadership announcement.
- Financial Times Top 10 legal innovator recognition in 2013.

## Latest updates

- **2026-10** — Featured in episode 139 of Legal Innovation Spotlight, published 7 October, discussing legal products, trusted data and dedicated product teams.
- **2026-01** — Inflexion published his reflections on aosphere’s carve-out and the operational work involved.
- **2025-11** — aosphere announced his transition from CEO to chair and Robert McKay’s appointment as successor.
- **2025-09** — aosphere acquired Investment Navigator.

## Links

- Website: https://www.aosphere.com/
- LinkedIn: https://www.linkedin.com/in/chamay/

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Profile page: https://yespress.io/marc-henri-chamay
Published by YesPress — https://yespress.io
Last updated: 2026-10-22