Yuval Fefer Back to all workBack Let's meet
07Finalist · Innovation Day Collegiate Pitch Showcase · 2026

GreenBack

Get paid to shop sustainably. A fintech incentive that gets shoppers to switch to organic and sustainable purchases.

Role
Co-founder: Operations, Research and Product Development
Team
Yuval Fefer, Muhammad Raiyan, Michael O'Connell
When
2026
Status
1 of 9 finalists. Innovation Day pitch on November 4, 2026
Yuval with co-founders Muhammad Raiyan and Michael O'Connell
With co-founders Muhammad Raiyan and Michael O'Connell.

Executive summary

GreenBack pays shoppers cash back when they buy groceries with a recognized sustainability certification, such as USDA Organic. The brand funds the reward, and the shopper proves the purchase by snapping a receipt.

We are 1 of 9 finalists in the Innovation Day Collegiate Pitch Showcase and pitch at Innovation Day, part of the 18th Annual Southeast Florida Climate Leadership Summit, on November 4, 2026, with a $150,000 pre-seed ask. GreenBack has not launched yet. Everything below is research, not customer results.

My role

I lead operations, customer research and the product build. The pitch and the poster are team work with my two co-founders. Some background research memos were written with AI assistance.

The problem

In the US, products marketed as sustainable cost an average of 28% more, while shoppers say they would pay up to 13% more (Bain & Company, 2025, citing NYU Stern data). The gap stops most people at the shelf. Labels do not help much either: in our survey, 41% could not pick out the USDA Organic label.

What we did

  • Surveyed 120 shoppers between August and October 2026.
  • Started with a bank-card-linked design. 8 in 10 shoppers were wary of linking a bank account, and card data shows the store and the amount but not the products. We moved to receipts.
  • Set the model: the brand pays $2.00 per verified sale, split $1 to the shopper and $1 to GreenBack.
  • Built the final summit poster and the pitch.

Results and sources

FigureWhat it measuresSource
120Shoppers surveyed, Aug to Oct 2026GreenBack survey
72%Of shoppers who'd pay nothing extra, the share who said cash back would change what they buyGreenBack survey
45% · 30% · 24%Would snap receipts instead of linking a bank: yes · yes, but · noGreenBack survey
8 in 10Wary of linking a bank accountGreenBack survey
41%Could not pick out the USDA Organic labelGreenBack survey
1 of 9Finalists, Innovation Day Collegiate Pitch ShowcaseCompetition notice

Survey answers describe what shoppers say they would do. They are not purchases.

Materials

GreenBack final summit poster
Final summit poster
The GreenBack co-founders with NSU President Harry K. Moon
With NSU President Harry K. Moon

Lessons

Test how people want to prove a purchase before building it. Our first design depended on bank linking; the survey showed most shoppers did not want that, so receipts became the core of the product.