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aosphere is our market-leading online service. It helps clients understand cross-border legal, regulatory and operational risks in key compliance areas such as fund marketing rules, shareholding disclosure and short selling rules.

As cross-border working increases, how can legal teams keep up with the huge amount of legislation and regulation that applies in each jurisdiction? Since 2001, aosphere has offered a way forward.
Our online subscription service helps clients understand their legal and compliance obligations in more than 100 markets. It turns complex information into user-friendly reports that are delivered and kept up-to-date online.
Today, 400 global businesses rely on aosphere to keep pace with cross-border compliance, reduce spend on external counsel and access the best-quality data on the market – exactly at the time they need it.

The A&O difference

No billable hours, no cost overruns

Access our online subscription service with just one fixed annual payment.

Round-the-clock insights

aosphere is available 24/7 with content spanning 100+ jurisdictions.

Best-in-class advice  

Our market-leading service is centrally managed by a team of senior lawyers.

User-friendly reporting

We use a traffic-light-system to help you understand your position at a glance. 

A proven approach

We’ve led the way in online legal services since 2001.
  • 450+ business subscribers
  • 10,000+ users
  • 80% women in leadership roles
  • 15 years average aosphere lawyer PQE
  • 24/7 insights
  • 1 annual fee 


How aosphere helps your business 

Cross-border marketing

Understand the rules when advertising financial products and services overseas.

International data transfers

Know your obligations when transferring data across borders.

Shareholding disclosure and short-selling obligations

Find out if you need to disclose, and how. Access automated solutions and Takeover Data offerings.

Analyse industry legal opinions

We summarise trade groups’ opinions on netting, collateral and other issues. 

G20-related compliance

Identify applicable margin, clearing and reporting rules for OTC derivatives transactions.


Key people

Marc-Henri Chamay
Marc-Henri Chamay
CEO - aosphere
United Kingdom
Telephone icon+44 20 3088 3955
Send email
View officeView profile
Clare Godson
Clare Godson
Executive Director - aosphere
United States
Telephone icon+44 20 3088 2880
Send email
View officeView profile
Claire Farley
Claire Farley
Executive Director - aosphere
United Kingdom
Telephone icon+44 20 3088 3043
Send email
View officeView profile

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