NOT MY RESEARCH. Combined from a couple places:
Podesta e-mail with HRC pizza logo (Design provided by James Alefantis) says to donate to "PizzaPAC.com" registered to one JZ Drizin;
There's more on JZ Drizin here: (long reddit thread) http://archive.is/i1s6K
However, Pizza Packet is owned by "Itchie Gross"; His wife Jane Gross has comes up several times in the podesta e-mails. A few of her e-mails are referencing trips to Hawaii, based on wording at the same time as John Podesta, his brother Tony, or others linked with the DNC itself. (go to wikileaks podesta section and search for "Jane Gross")
Most recent tweet is retweet from Pizza Packet, company that sells and delivers nothing but seasoning packets for pizza.
pizzapacket.com is a legit business and there products do get used by many pizza chains. HOWEVER...
Address printed on the products they sell is just: Brooklyn, NY 11215
Searching for Pizza Packet LLC the only address that matches that zip code is: Pizza Packet LLC, PO Box 150084, Brooklyn, NY 11215.
Checking other chamber of commerce sites we get another address: http://archive.is/GlWyl
This is a residential address, so that's likely where he lives. However from the podesta e-mails their their previous home address was: 181 East 93rd St. Apt. 2A NYC, NY 10128
Address listed for Pizza Packet on their website goes to a different post office box in Boca Raton, Florida (30 minutes from the Epstein mansion though). Also owns Frapes LLC.
Address listed for a sponsor of a Pizza Packet contest (762 Park Place, NYC, NY);
Streetview of this address shows a business name of "AR medical & Dental Supply Corp and a website address. That domain is inactive, but was crawled by the wayback machine successfully a few times.
The phone number if googled indicates that the business moved to a new location, and the owner of that business probably failed to remove the awning before relocating, so that lead is a dead end. The ownership of the 762 park place address is currently unknown and cannot be confirmed as legitimately associated with Pizza Packet.
Legal battle at that address http://archive.is/CXbvv
Currently scheduled for demolition, to be replaced by condominiums.
This address is a dead end. It cannot be proven to have any relationship to Mr. Gross.
Richard "Itchie" Gross LinkedIn profile has picture of a commercial jet. https://i.sli.mg/5KHjDf.jpg Color scheme appears very similar to Jeffrey Epstein's personal 727 http://sli.mg/Z672Lh (I don't see the resemblance because I can't the the top of the wing, google wasn't helpful)
Address for "Dr. Itcuie Gross, MD," who does not seem to have an NPI number, goes to 533 Bedford Avenue, Brooklyn, NY; Does not look like a doctor's office; two young children can be seen at the entrance.
Twitter Account for "Pizza Packet LLC" is just coordinates in Brooklyn: 40.670534,-73.950061 (794 Lincoln Pl Brooklyn, NY 11216) which I can't find any other information one besides it have 3 apartments.
Angels of Love Deals From Heaven deals with Haitian kids, based in FL; Follows Pizza Packet on Twitter
Address: 15592 NE 15th Ave, North Miami Beach FL
Google Maps indicates that it is the only house on the street with all windows barred; Does not look like a business of any sort. But some have noted that this isn't unusual for Miami. Lead is another dead end.
Pizza Packet, though a legitimate company that does deliver an actual product, doesn't seem to have a legitimate business location that can be tied to it. It operates entirely out of two Post Office boxes in two different states. The owner of the company also is posing himself as a doctor in what used to be a medical supply business location, while not having any type of medical license.
Most of this is from a still active sub in reddit and also some of it if from 8chan(cross referenced). I believe the reddit sub copied some of the 8chan sub. No biggie, just letting you know where it came from.