{"listing":{"listing_type":"company","name":"Sieve","slug":"sieve","tagline":"The multimodal data lab","description":"Sieve builds the data and environments frontier AI labs use to train the next generation of multimodal systems.\n\nAI is moving beyond chatbots into video, audio, images, software, robotics, and interactive worlds. The next generation of models will need to understand how the world looks, sounds, moves, responds, and changes over time. Progress is bottlenecked by one thing: high-quality data.\n\nSieve brings together exabyte-scale infrastructure, novel multimodal understanding techniques, large-scale sourcing, and deep research partnerships to create datasets and environments with unmatched precision, quality, and speed. This has earned the trust of frontier AI labs, Fortune 100 companies, and fast-growing AI startups working on generative media, robotics, computer use, world models, and agentic systems.\n\nSieve is a Y Combinator company (Winter 2022). YC-listed status: Active.","url":"https://sieve.ai/","is_stealth":false,"normalized_domain":"sieve.ai","normalized_url_key":"sieve.ai","parent_slug":null,"parent":null,"type_data":{},"logo":"https://bookface-images.s3.amazonaws.com/small_logos/b247c36fd7cd016d5bb505d32429cd07b9acfcbb.png","links":[{"label":"Y Combinator profile","url":"https://www.ycombinator.com/companies/sieve","platform":"ycombinator"}],"entry_points":[{"kind":"homepage","url":"https://sieve.ai/","audience":"any","primary":false,"listed_by":"community","derived_from":"url","on_listing_domain":true}],"primary_entry_points":{"human":{"kind":"homepage","url":"https://sieve.ai/","audience":"any","primary":false,"listed_by":"community","derived_from":"url","on_listing_domain":true},"agent":null},"founders":[],"media":null,"categories":["B2B","Infrastructure","Developer Tools","Video","Data Labeling","Data Engineering","AI"],"stage":null,"founded_year":null,"location":"San Francisco, CA, USA","pricing":null,"twitter":null,"github":null,"linkedin":null,"contact_email":null,"added_at":"2026-09-03T07:00:35.938Z","added_via":"web","geo":{"keywords":["Y Combinator","YC Winter 2022","Developer Tools","Video","Data Labeling","Data Engineering","AI"],"one_liner_for_search":"Sieve — The multimodal data lab (Y Combinator Winter 2022)","canonical_facts":["Y Combinator batch: Winter 2022","YC company status: Active","Team size (per YC directory): 34","YC industry: B2B","YC subindustry: B2B / Infrastructure","Regions (per YC): United States of America, America / Canada"]},"agents":null,"featured_until":null,"example":false,"ownership_status":"unclaimed","claimed_by_agent_id":null,"claimed_via_claim_id":null,"claimed_at":null,"updated_at":"2026-09-03T07:00:35.938Z","is_featured":false,"category_memberships":[{"kind":"industry","slug":"ai","name":"AI","note":null,"profile_url":"/industries/ai"},{"kind":"industry","slug":"b2b","name":"B2B","note":null,"profile_url":"/industries/b2b"},{"kind":"industry","slug":"data-engineering","name":"Data Engineering","note":null,"profile_url":"/industries/data-engineering"},{"kind":"industry","slug":"data-labeling","name":"Data Labeling","note":null,"profile_url":"/industries/data-labeling"},{"kind":"industry","slug":"developer-tools","name":"Developer Tools","note":null,"profile_url":"/industries/developer-tools"},{"kind":"industry","slug":"infrastructure","name":"Infrastructure","note":null,"profile_url":"/industries/infrastructure"},{"kind":"industry","slug":"video","name":"Video","note":null,"profile_url":"/industries/video"}]}}