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3PL Fulfillment Services for Ecommerce and B2B Brands

KSP receives, stores, picks, packs and ships your orders from one U.S. inventory — your DTC site, marketplaces, and wholesale and retail accounts. Daily orders received by 2 PM CST ship the same day, with real-time inventory in a portal and a dedicated account manager you can actually reach.
  • 2 PM CST same-day cutoff for daily orders
  • 99.999% order accuracy
  • Veteran-owned 3PL
Get a Fulfillment Quote See what's included ↓

Built for brands shipping 500+ orders a month.

KSP associates packing ecommerce orders on the fulfillment floor

What Do 3PL Fulfillment Services Include?

3PL fulfillment services are the outsourced warehouse work between your inventory arriving and your customer's order leaving: receiving and storage, order picking and packing, shipping through multiple carriers, returns processing, and inventory reporting back to your sales channels. A 3PL fulfillment center does that work for many brands from one shared building, systems and team, so you pay for the work and space you use instead of running your own warehouse.
The work is the same for most brands. What decides the fit is how orders reach the building and how they need to leave it. A DTC order is one parcel, packed to your brand spec. A marketplace order carries that channel's labeling and ship-by rules. A retail order arrives by EDI, ships in cartons or on pallets, and gets checked against the retailer's routing guide. A general 3PL should run all three from one inventory, so a wholesale order never strands stock your website needs.

Fulfillment Services From Receiving to Returns

Every program starts with the same core services, set up for your products and channels.

  • Receiving & storage

    Inbound shipments are counted and scanned against your advance ship notice, and each SKU is put away to a tracked location. Any discrepancy is reported to you.

  • Pick, pack & ship

    Orders release from your channels into the WMS, get picked with RF scanning, and are packed to your spec, with labels from multi-carrier rate shopping across major parcel carriers.

    Shipping options

  • Kitting & assembly

    Bundles, gift sets, sample packs and build-to-order kits, assembled on-site and checked against a bill of materials before they close.

    Custom kitting and assembly

  • Inventory management

    Real-time stock by SKU in a client portal, cycle counts, and lot or serial capture where the product needs it.

  • B2B & retail orders

    Wholesale and retail orders by EDI, carton or pallet, to the retailer's routing guide.

    How KSP handles EDI

  • Returns processing

    Returns are received, inspected and graded. Sellable units go back to available stock, and you get a report of every return and its condition.

Ecommerce Fulfillment Services and B2B Orders: What Changes

KSP's ecommerce fulfillment center ships DTC and marketplace orders for brands doing 500+ orders a month on Shopify, Amazon, Walmart and TikTok Shop. Orders drop from your store into the WMS as customers place them. Anything received by 2 PM CST ships the same day, and orders are picked and packed in under 30 minutes.

135+ Locus robots move order totes through picking, so associates spend their time picking and scanning instead of walking aisles. Every unit barcode is checked against the order, and every carton is weighed before the label prints. Order accuracy runs at 99.999%. Tracking and stock levels sync back to your storefront on their own.

Most brands come to 3PL ecommerce fulfillment from a garage, a rented unit or another 3PL. Outsourced fulfillment at KSP means one inventory, one team and an account manager on the floor who owns the fix when an order goes wrong.

That same inventory also ships wholesale and retail orders, and the order flow changes. A 3PL that runs both should be able to explain each row.

Order flowEcommerce / DTCB2B & retail
How orders arrive
Storefront or marketplace connector, released through the day
EDI purchase orders or bulk order files, on the retailer's schedule
What ships
Single parcels, often one to three units
Cases, cartons or pallets, often hundreds of units per order
Packing rules
Your brand spec: box, inserts, gift notes
The retailer's routing guide: carton labels, packing lists, pallet build
What goes wrong
Wrong item or late parcel → a customer complaint
Compliance miss → a chargeback or refused delivery
How it ships
Multi-carrier parcel, rate-shopped per order
Parcel, LTL or truckload to a DC or store, sometimes by appointment
Selling DTC-first? Read how DTC brands use 3PL fulfillment to scale without breaking the customer experience.

How Onboarding Works When You Move Fulfillment to KSP

Five steps from first call to live orders. KSP plans the dates with you before any inventory ships.

  1. Share your order profile

    Monthly orders, SKU count, units per order, product sizes and your sales channels.

  2. Get a plan and a quote

    Storage, pick and pack method, packaging and carrier setup, priced on your profile.

  3. Connect your channels

    Your store, marketplaces and EDI partners are connected and tested with live SKUs before inventory arrives.

  4. Send your inventory

    Inbound is scheduled against an advance ship notice, then received, counted and put away. You see it in the portal.

  5. Go live

    Orders start flowing, your account manager watches the first weeks closely, and any issue gets one owner.

How KSP Checks Every Order Before It Ships

Most fulfillment errors start at two points: receiving and the pick. Checks sit at both, and at the scale before a label prints.

On every order

  1. Identify the tote

    The associate scans the tote barcode so the pick is tied to the right container.

  2. Verify the item

    Every unit barcode is checked against what the WMS expects. A mismatch does not register and has to be corrected before the workflow continues.

  3. Measure the packed carton

    Cartons pass certified scales and dimensioners before labels print. Measured weight and dimensions feed the shipping manifest and multi-carrier rate shopping.

Less travel. More time for verification.

135+ Locus AMRs move order containers through picking, cutting associate travel so time goes to picking and verification.
order accuracy
99.999%
Ground shipping in the lower 48
1-3 day
Same-day cutoff for daily orders
2 PM CST
Fulfilled from KSP's FDA-registered facility in Brooklyn Park, MN: a ~225,000 sq ft building with 29 dock doors.

When Your 3PL Fails: A Recovery Story

Premium linen brand · Switched 3PLs before peak season

A premium linen brand had goods it couldn’t sell because they weren’t received correctly, and its 3PL couldn’t get anyone to fix it. Here is what changed when fulfillment moved to KSP.

We had goods we couldn’t sell because they weren’t received correctly—and we couldn’t get anyone to fix it. This was going into November.

Operations Leader, Premium Linen Brand
The problem
The brand's 3PL was acquired. Response times slowed, receiving errors left inventory unsellable for weeks, and nobody owned the fix, heading into peak season.
What changed
The brand moved fulfillment to KSP: issues go to one account manager who owns them to resolution, with real-time order visibility in the portal.
The result
Fulfillment stopped being the constraint on the brand's busiest season.
Read the full story

Products KSP Fulfills

KSP fulfills parcel-sized consumer goods for ecommerce and retail brands. These categories have their own pages with the handling detail they need.

Don't see your category? If it ships as a parcel or a case, send us the product and your order profile. Household cleaning products are reviewed for hazmat classification before onboarding.

  • Beauty & cosmetics

    Launch spikes, lot tracking, gift sets and PR kits.

    Beauty fulfillment

  • CBD & hemp

    Lot records, COA handling and destination checks.

    CBD fulfillment

  • Supplements & wellness

    Lot and expiry control and retail-ready shipping.

    Supplement fulfillment

  • Pet products

    Toys, accessories and treats for DTC and retail.

    Pet product fulfillment

  • Subscription boxes

    Cycle-date builds and planned ship waves.

    Subscription box fulfillment

  • Home, kitchen & garden

    Kitchen tools, baking supplies, home organization and gardening products.

  • Toys, games & school supplies

    Puzzles, games, school and office supplies, including seasonal peaks.

  • Electronics & wearables

    Serial-number capture on inbound and outbound where you need it.

    Serial number tracking

Sales Channels and Marketplaces KSP Connects To

Orders flow in from your channels and tracking flows back. Confirm the connector for each channel you sell on before inventory ships.
Storefront Shopify
Connector
Storefront WooCommerce
Connector
Marketplace Amazon
Connector
Marketplace Walmart
Connector
Wholesale marketplace Faire
Connector
Retail EDI SPS Commerce
EDI
See all platform connections

What Drives 3PL Fulfillment Pricing

Two brands at the same order volume can get very different quotes. Six things set the number.
Blue KSP-branded sample kit box with packaged products
Receiving
How inventory arrives — floor-loaded containers, pallets or parcels — and how clean the ASN is.
Storage
Space by pallet, shelf or bin, driven by SKU count and how fast each one turns.
Pick and pack
Orders per month, units per order, and any custom packing or inserts.
Packaging
Standard cartons and mailers, or your branded materials.
Postage
Parcel weight, dimensions and destination mix, rate-shopped across carriers.
Special projects
Kitting, B2B routing-guide compliance and returns volume.

Send these for an accurate quote

Give every 3PL you compare the same profile, and ask which charges sit inside the quoted rate and which are billed per touch. Armstrong & Associates' 2026 benchmark puts the average U.S. 3PL order fee at $3.27 in the 0 to 499 order tier, plus $0.40 per pick, and our 3PL fulfillment statistics cover the storage, receiving and returns lines that sit beside it. Comparing providers? Get the Fulfillment Fee Checklist: every line a 3PL can bill you for, with the question to ask about each one.
  • Orders per month, and your peak month
  • Live SKU count and average units per order
  • Product dimensions and weights
  • Sales channels, and any retailers you ship to
  • How inventory arrives today
  • Why you're moving: first 3PL, or switching
Get a Fulfillment Quote

3PL Fulfillment FAQ

What does a 3PL fulfillment company do?
It stores your inventory and ships your orders for you. The work covers receiving stock, keeping counts accurate, picking and packing each order, buying postage, handling returns, and sending tracking and inventory back to your sales channels. You keep selling, and the 3PL runs the warehouse.
What is an ecommerce fulfillment center?
It's a warehouse that stores a brand's inventory and ships its online orders: receiving, storage, picking, packing, postage and returns, with orders and tracking synced to the storefront. KSP runs one in the U.S. for Shopify, Amazon, Walmart and TikTok Shop brands, and orders received by 2 PM CST ship the same day.
When should a brand outsource fulfillment?
Usually when packing orders is taking time from growth, when you add a channel your setup can't handle (retail EDI, Amazon, Walmart), or when you're out of space. Past 500 orders a month, most brands find the math worth running.
How do I switch 3PLs without disrupting orders?
Plan the move in phases. Connect and test your channels first. Then move inventory in waves, so one location is always shipping. Cut over order routing only when stock is received and counted. See how one brand moved after its 3PL was acquired.
Do you handle B2B and retail orders, or only ecommerce?
Both, from the same inventory. KSP ships wholesale and retail orders by EDI, carton or pallet to the retailer's routing guide, alongside DTC and marketplace orders.
What order volume does KSP work with?
KSP works with brands shipping 500+ orders a month.
How fast do orders ship?
Daily orders received by 2 PM CST ship the same day. KSP rate-shops each parcel across carriers to balance speed and cost. Ground transit for the lower 48 is just 1–3 days, and we can overnight anywhere in the country for even faster shipping speeds to get your products in the hands of your customers.
Where do orders ship from?
From one U.S. warehouse, with nationwide parcel and freight shipping. A central location keeps ground transit reasonable to both coasts.
How do I choose the right 3PL?
Compare providers on the same order profile. Ask how they check receiving and picks, who your day-to-day contact is, what's inside the quoted rate, and how they handle your channels. Start with our guide to choosing the right 3PL partner, or download the free ebook.

Get a Fulfillment Quote

Send your monthly orders, SKU count, channels and how inventory arrives today. KSP comes back with a fulfillment plan and a quote built on that profile.
Switching from another 3PL? Tell us what isn't working. That shapes the onboarding plan.

Tell us about your build

Rough numbers are fine. A KSP project specialist will review your request.