$3,840 / mo back
Lightweight apparel · 6,000 parcels / mo
6 months of work
"Most of our parcels are under 16 oz. Once we routed them onto USPS commercial through Kadima, the math changed completely."
USPS at commercial pricing, routed to the lanes it wins.
USPS, optimized.
USPS wins on lightweight parcels, residential delivery, and PO Box destinations. We help you route the right packages to USPS — and the rest to the carriers that win those lanes.
Our relationship with USPS
How USPS actually sits inside our system.
USPS is the one major carrier where rates aren't negotiated the way UPS, FedEx, and DHL agreements are — they're set by USPS. So our work on USPS isn't about pulling a base rate down. It's about routing the right packages onto USPS and pricing them at commercial rather than retail.
Through our partner platform, you ship USPS at commercial pricing — meaningfully below counter rates. Cubic-pricing eligibility, Priority Mail, Ground Advantage, First-Class Package, and lightweight residential all sit in the same workflow as your UPS, FedEx, and DHL labels.
USPS lives inside our routing engine. Every shipment gets quoted across every carrier; the engine pushes packages to USPS on the lanes where USPS wins, and to UPS, FedEx, DHL, or Amazon Shipping where they do.
100%
U.S. address coverage USPS reaches
17%
Average reduction on optimized USPS invoices
$40M+
Annual carrier spend we negotiate
What we actually negotiate
The levers we work on every USPS account.
Every USPS contract is the sum of many separate line
items. We work each one — not just the headline base rate.
01
Commercial pricing access
USPS commercial pricing sits well below retail — and is available to you through our partner platform without volume thresholds you'd otherwise need to hit.
02
Cubic pricing eligibility
Cubic pricing is one of USPS's best-kept lanes for small, dense parcels. Where you qualify, we make sure your shipments price as cubic instead of weight.
03
Service-level matching
Ground Advantage, Priority, Priority Express, First-Class Package — each wins different parcels. The routing engine matches service level to shipment so USPS only handles what it should.
04
Routing logic
USPS isn't a default; it's a winner on specific lanes. Our rate-shopping engine pushes packages onto USPS only where USPS actually beats the alternative.
Real outcomes
What USPS optimization looks like in dollars.
A few representative engagements. Figures rounded, profiles
anonymized, savings annualized from real client work.
$1,920 / mo back
Subscription box · USPS + UPS mix
5 months of work
"Kadima's routing engine moves packages between USPS and UPS automatically. We don't think about it anymore."
$2,460 / mo back
DTC supplements · Priority Mail heavy
7 months of work
"Cubic pricing on our dense little parcels was the unlock. We didn't know we qualified until Kadima looked at it."
FAQ
About USPS through Kadima.
Do you negotiate USPS rates directly?
USPS rates aren't negotiated the same way private carriers' are — they're set by USPS. What we do is give you access to commercial USPS pricing through our partner platform and route the right shipments onto USPS so you benefit from those rates where they win.
When is USPS the wrong choice?
Heavy parcels, time-definite delivery, international with customs requirements, and B2B deliveries with strict appointment windows are typically better served by UPS, FedEx, or DHL. Our routing logic handles the split automatically.
Free USPS audit
Send us a recent USPS invoice. We'll send back a savings number.
Line-by-line teardown by Friday. No commitment, no system access required, no sales detour.