What is Siren?
Siren is a notable spin-off from the Data Intensive Infrastructure research group at the National University of Ireland, Galway (NUIG), founded by Dr. Giovanni Tummarello and Dr. Renaud Delbru. The company's technological foundation is built upon the Sindice search engine research, which pioneered the first generation of the "SIREn" (Semantic Information Retrieval ENgine). This engine is designed to index, understand, and reuse vast quantities of data, specifically focusing on a 30 billion edge knowledge graph derived from crawling the "Web of Data." This includes pages marked up with schema.org and similar semantic web technologies, positioning Siren as a key player in semantic search and knowledge graph management.
How much funding has Siren raised?
Siren has raised a total of $26.7M across 3 funding rounds:
Angel/Seed
$4M
Series A
$10M
Debt
$12.7M
Angel/Seed (2018): $4M with participation from The Atlantic Bridge
Series A (2019): $10M, investors not publicly disclosed
Debt (2023): $12.7M supported by European Investment Bank
Key Investors in Siren
European Investment Bank
The European Investment Bank (EIB), established in 1958 and based in Luxembourg, is the European Union's dedicated financial institution for long-term lending and investment.
The Atlantic Bridge
The Atlantic Bridge is an online publication focused on marketing, growth strategies, and startup success, aiming to support entrepreneurs and businesses with valuable resources and insights.
What's next for Siren?
With the recent major strategic investment and substantial overall capital, Siren is poised for significant growth and market penetration. The enterprise-level funding suggests a focus on expanding its infrastructure, enhancing its semantic search capabilities, and potentially forging new partnerships within the enterprise data sector. This strategic backing will likely accelerate the development and deployment of its advanced knowledge graph indexing and reuse technologies, solidifying its position in the competitive data infrastructure landscape.
See full Siren company page
