ReturnStack — Seed II — Dossier

One-Liner & Thesis

ReturnStack is a reverse logistics platform that uses AI-powered fraud detection, condition assessment and resale infrastructure to deliver an end-to-end returns solution. Our mission: help retailers turn returns from a cost center into a competitive advantage.

StoryHouse is evaluating the Seed II.

Company Snapshot

Sector: AI, Logistics
Location: Seattle, Washington
Year Founded: 2025-12-01
Website: returnstack.ai
Status: Private

Founders

Mayank Sharma

Founder and CEO. Former Amazon logistics/returns leader with deep operational expertise in e-commerce returns and value recovery.

LinkedIn mayank@returnstack.ai

Maria Pavlovskaia

Co-founder and CTO. Previously led large-scale logistics systems at Amazon (50+ person org) for same-day delivery planning; worked on real-time marketplace and ML-driven matching at Uber; early engineer at Snap through IPO. PhD in computer vision (UCLA), MBA (Wharton), BS Math (Harvey Mudd).

LinkedIn maria@returnstack.ai

Open Questions & Risks

Amazon opportunity is promising but unsigned — heavy concentration on one customer.
Procurement relationship is personal (ex-colleague of Mayank) — durability unclear.

Next Steps

Track the Amazon ML fraud-eval procurement through to a signed outcome.
Pin down what Amazon wants ReturnStack to deliver next.

Latest Meeting Notes

2026-05-22 Call Amazon fraud-eval opportunity gaining credibility

Update from Maria Pavlovskaia in Berkeley on a significant Amazon ML-driven fraud-evaluation procurement.

Signal: Procurement led by a former colleague Mayank promoted multiple times; post-pitch dinner described as extremely candid and positive.
Status: Nothing finalized, but the opportunity appears increasingly credible.
Next step: Amazon has signaled what they want ReturnStack to deliver next.

Source: Meeting Notes recicWeRQBxRczxPC

Deal Timeline

2026-05-22
Call with Maria Pavlovskaia in Berkeley — Amazon fraud-eval opportunity increasingly credible after a candid dinner.