Analyst Profile

Mark O'Neill

Mark O'Neill

VP Analyst

5 years at Gartner ,  24 years industry experience
Boston, MA USA

Roles and Responsibilities

Mark O'Neill advises on API strategy, including API management and building API products. His coverage includes API security, and how API security relates to application firewalls and identity and access management. He also covers API-based integration and how this relates to ESB and integration products. Mr. O'Neill also advises on strategy for banking APIs, including open banking.


Previous Experience

Mr. O'Neill is the author of the book "Web Services Security" and other guidance on API security and strategy. He began his career at an EDI VAN (value-added network) where he extended B2B networks securely to use the internet. He then co-founded two companies, acting as CTO at both, leading to both companies being acquired. At Vordel, as CTO, he drove SOA gateway strategy. Throughout his career, Mr. O'Neill has worked closely with enterprise architects, CIOs and security professionals, providing best-practice architecture for engaging with the API economy, including API monetization strategy, API security strategy and full life cycle API management.

Professional Background

Axway, VP Innovation, 3 years
Delphium Technologies, CTO and Co-founder, 2 years
Vordel, CTO and Co-founder, 12 years

Industry Awards/Accolades

2018 Gartner ITLTP Outstanding Performance in a Key Role - Analyst Award
2020 Gartner ITLTP Outstanding Performance in a Key Role - Analyst Award
DZone MVB (Most Valuable Blogger)


B.A., Mathematics and Psychology, Trinity College, Dublin



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