Mark O'Conor is experienced in all aspects of IT law, majoring on public procurement, IT in the financial services sector and e-commerce issues. Mark has advised technology suppliers, startups, content providers and public sector bodies on deals ranging from credit card processing outsourcing and online auctions to the creation of standard suites of agreements and car dealership financing. Mark's practice covers clients in both the public and private sector.

Mark has been ranked as an "expert" since 2002 and recent Chambers and Legal 500 entries include "maintains excellent client relationships", "first class legal acumen", "excellent IT knowledge" and the Who's Who of international IT lawyers describes Mark as "outstanding".

Mark advises companies and governments on cloud computing legal challenges and has been involved in drafting and negotiating cloud computing contracts both on the provider and the customer side. He is also an active member of the European Commission's Cloud SLA Expert Subgroup set up by DG Connect in the framework of the European Cloud Computing Strategy.

Mark provided legal and procurement advice to the Cabinet Office and OGC in its work to establish the "G-Cloud" as part of the public sector ICT strategy to meet the objectives of the Digital Britain report and more recently has become part of the Eurocloud special interest group, and has advised cloud vendor and customer clients alike.

Specifically, Mark has sought to aid the UK public sector, and subsequently cloud vendors and large corporate customers find consensus and complete larger deals. He has established an independent cloud forum, bringing together like minded experts from vendor organisations such as Colt, Dell, Salesforce, Agilisys, SkyScape Cloud, Memset and Microsoft. Customers involved have included the Cabinet Office, various regulators, Barclays, Lloyds Banking Group and Pfizer.

In the private sector, Mark is legal advisor to the London Stock Exchange for IT and IP matters. He advises Tradition on liquidity virtual platforms. He also advises Lloyds TSB on a variety of BPO and outsourcing as well as advising Winterflood Securities, the Financial Ombudsman Service and Markel Insurance.

As the author of the clauses that became the BSI Standard for Year 2000 Date Compliance and as a monthly columnist for Managing Information Strategies magazine, Mark retains a close link with developments in the IT and e-commerce world allowing him to provide pro-active and tailored advice to clients.

Mark is Chair of the UK Society for Computers and Law