Mission, History, Team

Our mission

Data Intelligence to address some of the World’s most important problems

Siren is a team of enormously passionate data discovery and advanced search experts, scientists and engineers.

We believe that the unique combination of search, business intelligence, big data, graph and knowledge representation, which we define as Data Intelligence, has the potential to strongly advance the way we address some of the world’s most important problems.


Our mission is to deliver Data Intelligence to the organizations that are addressing these problems.

Knowledge Graphs

Our history

From the “Web of Data” to Enterprise Knowledge Graphs

Siren is a spin off of the Data Intensive Infrastructure research group at NUIG led by Dr. Giovanni Tummarello. Together with Dr. Renaud Delbru (co-founder).
The Sindice search engine research created the first generation “SIREn” (Semantic Information Retrieval ENgine) and other techniques to index, understand, and reuse of 30 billion edge knowledge graph created by crawling the “Web of Data” (I.E. pages with markup like schema.org among others).

Our Team

[CEO] - John Randles

Entrepreneur, Computer Engineer - Dublin, Ireland.

[CPO] - Giovanni Tummarello, Ph. D

Serial Entrepreneur, Computer Scientist - Galway, Ireland.

[CTO] - Renaud Delbru, Ph. D

Computer Scientist, Lucene, Elasticsearch, Solr guru - Bordeaux, France.

[Head of Dev IT] - Andrew Gallagher

IT Department - Dublin, Ireland.

[Senior Engineer] - Szymon Danielczyk

Software Engineer - Galway, Ireland.

[Senior Engineer] - Stephane Camp, Ph. D

Senior Engineer & Full-Stack Engineer - Bordeaux, France.

[Account manager] - Nicola Bertolin

Account manager & Technical Account Manager - Trento, Italy.

[Senior Software Dev] - Sergio Scarnatto

Software Engineering - Galway, Ireland.

[Software Engineer] - Fabio Tacchelli

Software Engineer - Trento, Italy.

[Marketing] - Valentina Frigo

Marketing & Initiatives - Trento, Italy.

[VP Sales] - Gerry Baron

Sales - Philadelphia, USA.

[Technical Advisor] - David F. Huynh

Technical Advisor & Computer Scientist, data UX Pioneer.

[Senior Engineer] - Fabio Corneti

Full-stack Engineer, Kibi team manager - Cambridge, UK.

[Manager] - Valentina Schlagenauf

Admin Manager - Trento, Italy.

[Senior Engineer] - Alfredo Milani Comparetti, MBA

Senior Software Engineer - Trento, Italy.

[Software Engineer] - Mehmet Furkan

Software Engineer - Galway, Ireland.

[Software Engineer] - Colm O'Shea

Software Engineering - Galway, Ireland.

[IT Support Specialist] - Johnny Lopes

Administration - Galway, Ireland.

[Test Automation Eng.] - Darren Gilligan

QA Automation Engineer - Galway, Ireland.

[Finance & Admin Manager] - Pat Burke

Finance & Administration - Galway, Ireland.

[Senior Software Dev] - Miguel Pignatelli, Ph.D

Software Developer Lead - Galway, Ireland.

[Marketing Executive] - John Campbell

Marketing Executive - Galway, Ireland.