Sieve
YC W22San Francisco, US · Founded 2022 · 34 employees · Hiring · 8 known investors
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Sieve creates high-quality multimodal datasets and training environments for frontier AI labs developing generative media, robotics, and agentic systems. The company combines exabyte-scale infrastructure with novel data collection and processing techniques to serve AI research teams and enterprise customers.
Founders & leadership· Y Combinator alumni (W22)
Sieve was founded in 2022 by Mokshith Voodarla and Abhinav Ayalur.



Investors · 8
How we know: open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us
How we know: Swift Ventures's portfolio page · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us
How we know: the Y Combinator directory · funding news · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Founder mafia
2 people who came through Sieve went on to found or lead other companies.
Related companies · 4
Companies working in the same space as Sieve.
Legal entities · 1
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Frequently asked questions
- What does Sieve do?
- Sieve creates high-quality multimodal datasets and training environments for frontier AI labs developing generative media, robotics, and agentic systems. The company combines exabyte-scale infrastructure with novel data collection and processing techniques to serve AI research teams and enterprise customers.
- Who founded Sieve?
- Sieve was founded by Mokshith Voodarla, Abhinav Ayalur in 2022.
- Who are Sieve's investors?
- Sieve's investors include Fjor Founders, Matrix, Swift Ventures, Y Combinator, Clocktower Ventures, Cory Levy, Rauch Capital, Valor Capital Group.
- Where is Sieve headquartered?
- Sieve is headquartered in San Francisco, US.






