Our People

John Grinthal

Digital Marketing Specialist and Commercial Sales Manager

Between his studies at Rochester Institute of Technology, John scores sales for GVU. He's always strategizing new ways to expand our growing "empire."


Sean Callahan

Master Craftsman and Operations Manager

Sean enjoys candles, mathematics, and good company. He's especially good at taming big messes for a polished result - in the workshop and on spreadsheets.


Dan Grinthal

Business Manager and Product Designer

Dan is famous for making big, beautiful messes to launch projects, then asking everybody else to help him clean up. He handles the back-end stuff so the rest of the team has what they need to do the real work.




(973) 500-8642

Email:  dan@greenvalleyupcycling.com


Non Affiliation Disclaimer

Any product names, logos, brands, and other trademarks or images featured or referred to within the Green Valley Upcycling LLC website (GreenValleyUpcycling.com) and/or on any social media forum or any other platform are the property of their respective trademark holders.

These trademark holders are not affiliated with Green Valley Upcycling LLC or its website. These trademark holders do not sponsor or endorse Green Valley Upcycling  or any of its products or comments.


We declare no affiliation, sponsorship, nor any partnerships with any registered trademarks. Green Valley Upcycling LLC stands independently as a retailer.

Alteration Disclaimer

We certify that all products sold by Green Valley Upcycling LLC which make use of discarded portions of any previously sold products have been sufficiently altered from their original form and intended use so as to create an entirely new product of our own design.

© 2020 by Green Valley Upcycling, LLC.