A 3PL (third-party logistics provider) physically runs part of your supply chain: it receives, stores, picks, packs and ships your inventory. A 4PL (fourth-party logistics provider) does not need a warehouse at all; it manages your whole logistics network for you, including the 3PLs, carriers and technology involved. For most growing consumer brands, a 3PL is the right model. A 4PL starts to make sense only when you run several logistics providers across many regions and need one party to coordinate them.
The short answer: 3PL vs 4PL at a glance
| Aspect | 3PL | 4PL |
|---|---|---|
| What It Does | Executes: warehousing, receiving, pick and pack, shipping, returns | Orchestrates: designs, manages and monitors the whole network |
| Owns Physical Assets | Yes, warehouses, racking, labour and often a WMS | Usually no; it manages other providers' assets |
| Your Contact | One provider for the services it performs | One lead contact for several providers |
| Typical Client | Brands that need fulfillment capacity and expertise | Larger or multi-region operations with several logistics partners |
| Main Benefit | Faster setup, shared warehouse infrastructure, predictable per-order work | Single point of accountability across a complex network |
| Main Trade-Off | You still coordinate any other providers yourself | One more layer between you and the work, and one more fee |
What is a 3PL?
A third-party logistics provider takes over the physical work of getting products to customers. For an ecommerce or wholesale brand, that usually means inbound receiving, storage, order picking and packing, outbound shipping and returns handling, run through a warehouse management system (WMS) that shows you live inventory and order status. If you want the full definition, read our introduction to third-party fulfillment.
Evolution Fulfillment is a 3PL. From its Delta, BC warehouse it runs B2C order fulfillment, B2B order fulfillment, returns management, Amazon FBA prep and transloading and cross-docking for brands in Canada and the United States.
What is a 4PL?
A fourth-party logistics provider is a management layer. Instead of moving boxes itself, it takes responsibility for the strategy, technology and day-to-day coordination of a company’s logistics network. The term is generally credited to the consulting firm Accenture, which used it in the 1990s for a provider that assembles and runs a supply chain on a client’s behalf. You will also see it called a lead logistics provider (LLP).
In practice a 4PL might choose and contract the warehouses, carriers and freight forwarders, run a central control tower for visibility, negotiate rates, handle exceptions and report performance back to you. The physical work is still done by 3PLs and carriers. The 4PL is accountable for how well they work together.
Where 5PL fits in
You may also see “3PL vs 4PL vs 5PL.” A 5PL (fifth-party logistics) goes one step further and is usually described as a provider that manages the logistics network for ecommerce at scale, often with technology and data integration at the centre. The label is used inconsistently across the industry, and most brands will never need to choose between 4PL and 5PL. If a provider uses the term, ask them to describe exactly what they do and what they are accountable for.
The key differences, one by one
1. Who does the physical work
With a 3PL, the provider’s team handles your inventory in its own building. With a 4PL, a different party does the physical work (a 3PL, a carrier, a forwarder) and the 4PL manages that party. If your goal is simply to get orders out accurately, a 3PL already covers it.
2. How many providers you manage
A brand with a single warehouse and a couple of carriers has little to coordinate. A brand with several warehouses, several carriers, an import freight forwarder and a returns provider in different countries has a lot to coordinate, and that is the situation a 4PL is built for.
3. Control and visibility
A 3PL with a good WMS gives you direct, real-time sight of inventory and orders, and a direct line to the people doing the work. A 4PL gives you consolidated reporting across providers, but you are one step removed from each of them. Neither is better; it depends on whether you want to be close to the operation or have it abstracted.
4. Cost structure
3PLs charge for the work performed, typically receiving, storage, pick and pack, packaging, shipping and returns; see our guide to 3PL pricing in Canada. A 4PL adds a management fee on top of the underlying providers’ costs, which it may offset through better rates and fewer errors. We do not quote 4PL pricing because we do not offer a 4PL service; ask any 4PL you are evaluating how its fee is structured and what savings it commits to.
5. Speed to start
Onboarding a 3PL is a defined project: system setup, inventory planning, test orders and go-live. Our own process typically takes two to four weeks. Setting up a 4PL arrangement means redesigning how several providers work together, which is a longer programme.
Which model fits your brand?
Use these questions as a starting point.
- How many logistics providers do you use today? One or two: a 3PL is enough. Five or more across regions: a 4PL may help.
- Where is your complexity? If it is in the warehouse (apparel returns, B2B routing guides, kitting), you need a strong 3PL. If it is in coordination (many suppliers, lanes and regions), a 4PL addresses that.
- Do you have an internal logistics team? A small team usually does better with a 3PL that has its own systems and people. A 4PL substitutes for a larger internal supply-chain function.
- How close do you want to be to the operation? If you want a direct view of your inventory and a team that knows your products, choose a 3PL.
- What is your volume? Growing brands, including those in the $5–20M range, are usually well served by a single 3PL, with a second provider added for a new region.
For a brand that is outgrowing in-house fulfillment, the real decision is rarely 3PL vs 4PL. It is whether to keep fulfilling in-house or move to a 3PL; our in-house vs 3PL cost model walks through that comparison.
A practical path for growing brands
Most brands follow the same sequence. They start in-house, move to one 3PL once order volume makes packing a full-time job, and add a second warehouse or a cross-border node when they sell into another country; our article on dual-country warehousing explains that step. A 4PL becomes a topic only after the network is large enough that coordination itself is the problem.
How to choose a 3PL once you have decided
Compare providers on what they do, not what they call themselves. Our 3PL RFP question list and Canadian 3PL selection guide cover the questions to ask, and our warehouse KPI scorecard shows how to hold a provider to account once you are live.
Talk to a 3PL that runs the warehouse itself
If your next step is a 3PL rather than a network manager, tell us what you ship and where. We will map it against our fulfillment services and tell you honestly whether we are the right fit. Request a fulfillment quote.
Frequently asked questions
What is the main difference between a 3PL and a 4PL?
A 3PL performs logistics work such as warehousing, pick and pack and shipping, using its own facilities and staff. A 4PL manages a company’s whole logistics network, including the 3PLs and carriers doing the work, and acts as a single point of accountability. The 3PL executes; the 4PL orchestrates.
Does a 4PL own warehouses?
Usually not. A 4PL is generally an asset-light management and technology provider that coordinates other companies’ warehouses, trucks and systems. Some providers offer both 3PL and 4PL services, so ask what assets sit behind the offer.
Is a 4PL more expensive than a 3PL?
A 4PL adds a management fee on top of the cost of the underlying providers, so the total can be higher unless the 4PL saves enough through better rates, fewer errors and less internal management time. The right comparison is total landed logistics cost, not the fee alone.
Which is better for a growing ecommerce brand, a 3PL or a 4PL?
For most growing brands a 3PL is the better fit, because the main need is reliable receiving, storage, picking, packing and shipping. A 4PL starts to pay off when you manage many providers across several regions and need one party to coordinate them.
What is a 5PL?
A 5PL, or fifth-party logistics provider, is a term used for a provider that manages ecommerce-scale logistics networks, usually with a heavy emphasis on technology and data. The definition varies between companies, so ask any provider that uses the term to explain exactly what it does.
Is Evolution Fulfillment a 3PL or a 4PL?
Evolution Fulfillment is a 3PL. It operates its own warehouse in Delta, BC and provides order fulfillment, returns management, Amazon FBA prep and transloading and cross-docking, and it does not offer a 4PL network-management service.
