Conor Chang founded Oregon Prep Center in Portland in 2023 and still runs the warehouse himself, so the person prepping your inventory is also the person you talk to. The Oregon address matters for arbitrage sellers: it sits in a sales-tax-free state, which keeps sourcing costs cleaner. Pricing is a la carte and tiered by volume, starting at $1.70 per standard unit for low-volume sellers and dropping toward $1.05 at 2,000-plus units a month, with wholesale rates quoted as low as $0.40. There is no monthly minimum, and a $250 registration deposit is credited back once you ship 300 units in your first three months. Every order includes seven days of free storage, and the warehouse runs seven days a week. It handles hazmat and oversized items and holds a 4.5 Google rating across 14 reviews.
What sets them apart
- Founded 2023 by owner-operator Conor Chang in Portland OR - single owner runs the warehouse and is the direct client contact
- InventoryLab promo: 20% off first 3 months with code ILAB20 for InventoryLab users
- $250 refundable deposit structure: credited back if 300+ units shipped in first 3 months
- 7 days free storage included with every order; open 7 days/week including weekends (carrier pickup Mon-Fri only)
Services & channels
- Marketplaces
- Amazon FBA, Amazon FBM / SFP
- Business models
- Online Arbitrage, Wholesale
- Specialized
- Hazmat, Oversized / Bulky
- Value-add
- Storage & Warehousing, DTC Pick & Pack, Freight / LTL Receiving, Returns Processing
- Locations
- Portland, OR
Similar prep centers
McKenzie Services
Hillsboro, OR, USA
100% women-owned business since 2023 when original founder Jim Smith stepped back; three co-owners are all longtime employees
Network Prep
Lafayette, OR, USA
Currently at capacity - contact form leads to a waitlist only
Pacific Prep Services
Hillsboro, OR, USA
Amazon SPN (Seller Partner Network) certified - badge displayed on site
Prep Ninjas
Oregon, USA
Family-owned business (Jeremy, Ava, Kathy, and Jonas Rasmussen) founded February 2018 as a side income project; now operates full-time with 3 employees
PrepWorx
Oregon, USA
1,000,000+ units processed; 99.99% prep accuracy claimed
Snake River Pack and Ship
Adrian, OR 97901, USA
Veteran-owned and family-operated business in Eastern Oregon (Adrian, OR)
Stock and Ship
Oregon, USA
Requires minimum 6 months Amazon selling history and 500+ units/month capacity - explicitly excludes beginners
Proven Prep Center
Portland, OR 97230, USA
FDA-registered facility supporting food, beverage, pet, and consumer products - rare among prep centers