YouGov, a leading market research organization, uses MongoDB to power its globally distributed survey system, Gryphon, which captures millions of user responses daily. The company's global cluster of five shards, with two in the US and two in EMEA, ensures low latency writes as users respond to survey questions while replicating data globally for rapid retrieval anywhere in the world. With MongoDB 3.0, YouGov has seen a 70% reduction in storage size due to compression in the WiredTiger storage engine. The company relies on MongoDB's flexibility, scalability, and fault resilience features to deliver high performance and low maintenance, enabling it to focus on innovation and entrepreneurship.