Services
3.6K indexed services
Phys.org
Leading science and technology news website covering physics, chemistry, biology, earth science, and technology research from universities and research institutions worldwide with 4+ million monthly readers.
Padlet
Visual collaboration platform for creating digital bulletin boards, timelines, and multimedia walls for education and business with 50+ million users. Supports posts, links, videos, and real-time collaboration.
O'Reilly Media
Leading technology learning platform with 60,000+ books, videos, and live online training courses covering programming, data science, AI, cloud, and leadership for 3+ million enterprise learners.
Optimizely
Leading digital experience platform for A/B testing, feature flags, and personalization. Helps companies experiment across web, mobile, and server-side with 100,000+ experiments run on the platform.
ORF (Österreichischer Rundfunk)
Austria's public broadcaster providing TV, radio, and digital news services with comprehensive Austrian news coverage, sports, culture, and entertainment for Austrian and German-speaking audiences.
Overwolf
Platform for in-game apps and extensions with 40+ million monthly active users, enabling developers to build overlay apps for 700+ PC games including League of Legends, Valorant, and Fortnite.
OWASP
Open Worldwide Application Security Project - nonprofit foundation providing free resources, tools, and standards for web application security including the OWASP Top 10 most critical security risks.
The Ohio State University
Major US public research university with 60,000+ students in Columbus, Ohio. Known for engineering, business, medicine, and agriculture with $1.3B+ research expenditure and Big Ten athletics.
University of Oxford
World's top-ranked university with 24,000+ students across 44 colleges, known for PPE, law, medicine, science, and humanities with 72 Nobel laureates and 800+ years of academic excellence.
Oxford University Press
World's largest university press publishing 6,000+ new books annually across academic and professional fields, plus 300+ peer-reviewed journals, dictionaries, and educational materials in 190 countries.
Otomoto
Poland's largest automotive marketplace with 300,000+ car listings, offering new and used cars, motorcycles, trucks, and parts with dealer tools and financing options for Polish buyers.
Our World in Data
Oxford-based research project presenting global data and research on human development, climate change, health, and poverty with interactive visualizations covering 3,000+ indicators across 200+ countries.