Company🇺🇸 Mountain View
Google190 people
Google has shaped modern AI through research and infrastructure including the Transformer architecture, TensorFlow, JAX, and tensor processing units. Beyond Google DeepMind, its teams apply machine learning across Search, translation, cloud services, health, systems, and other products.
Company🇺🇸 Sunnyvale
Yahoo8 people
Yahoo was an early proving ground for web-scale search, advertising and machine learning, and its research teams produced influential work in information retrieval, data mining and large-scale systems. It now applies AI across a consumer network that includes search, mail, news, finance and sports.
Company🇺🇸 United States
Perplexity5 people
AI search company building answer engines that combine web retrieval, citations, and conversational interfaces.
Company🇷🇺 Moscow
Yandex2 people
Yandex is a Russian internet company founded in 1997, operating the dominant Russian-language search engine along with mapping, ride-hailing, and self-driving research.
Company🇺🇸 United States
You.com2 people
You.com helped push search from ranked links toward conversational, citation-backed answers. It now provides both an AI assistant and search infrastructure that lets other agents retrieve fresh web information, making reliable retrieval part of the emerging AI application stack.
Company
Chord1 person
Chord developed an AI product-research assistant, co-founded by Sidney Hough and Kevin Liu and backed by Neo. It aimed to help people find recommendations through automated online research.
Company🇺🇸 United States
Elastic1 person
Elastic develops search, observability, and security software around Elasticsearch and the Elastic Stack, including tools for analyzing application performance and infrastructure behavior.
Company🇺🇸 United States
Infoseek1 person
Early web search engine and directory, launched in 1994 and later acquired by Walt Disney's Go.com.
Company🇩🇪 Berlin
Jina AI1 person
Develops multilingual and multimodal embeddings, rerankers, readers, and small language models for search and retrieval-augmented generation. Acquired by Elastic in 2025, Jina continues as its search-model brand.
Company🇺🇸 United States
Pegasus1 person
LLM search-engine startup for law firms founded by Devin Kim.
Company🇨🇳 Beijing
Sogou1 person
Chinese search engine, founded in 2004 and later merged with Tencent's search business.
Company🇺🇸 United States
Topsy1 person
Topsy built search and analytics tools for social-media activity. Apple acquired the company in 2013 and shut down its standalone service in 2015.
Company🇺🇸 United States
Voyage AI1 person
Developed embedding and reranking models that help AI applications retrieve relevant information from text, code, images and video. Its team and technology joined MongoDB, where the models continue as part of its retrieval and database infrastructure.
Company🇰🇷 South Korea
NAVER0 people
NAVER is a South Korean internet company headquartered in Seongnam, founded in 1999 by Lee Hae-jin, operating the country's dominant search engine. It develops the HyperCLOVA X family of Korean-language large language models.