Costream
Indexing human dialogue through digital products
Y CombinatorSummer 2025ActiveConsumer
What they do
Problem
Human dialogue is difficult to search, organize, and extract insights from across digital conversations.
Solution
Costream builds digital products that index human dialogue to make conversations searchable and analyzable.
Who it's for
Teams and organizations that need to index and analyze large volumes of human conversations.
Founders
Aditya Mahna
Founder
CEO. Prev. built and scaled AI co to 100k+ users. Cornell CS dropout @ 19
Ayush Mahna
Co-Founder
Previously went to Cornell and built a consumer app to 100K+ downloads.
Company timeline
- Founded2025
- YC batchSummer 2025
- StatusActive
- Team size2 people
- LocationSan Francisco, CA, USA
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