The Ultimate 3PL Guide: How It Works and Why It Matters


Struggling to keep up with rising customer expectations and complex supply chain demands? Third-party logistics (3PL) could be the game-changer your business needs.

In this ultimate guide, we break down what 3PL really means, how it works, and why outsourcing logistics is now a strategic move for growth in 2025 and beyond.

The fastest-growing brands all have one thing in common: a reliable 3PL.

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    Table of Contents

    1. Quick 3PL Overview: Third-party logistics (3PL) intro guide
    2. What is 3PL? (Third-Party Logistics Explained): What is 3PL?
    3. Types of 3PL (Third-Party Logistics) Providers: Main types of 3PL providers available
    4. 3PL vs. 4PL vs. 5PL: Understanding the difference between providers
    5. Core 3PL Services You Should Know: Core services 3PL (third-party logistics) provides
    6. Benefits of Using a 3PL Provider: Top 3PL (third-party logistics) benefits
    7. When Should You Outsource to a 3PL?: When should you consider outsourcing to a 3PL provider?
    8. How 3PL Pricing Works: Understanding how 3PL pricing works
    9. Fulfillment Costs: What goes into fulfillment and storage costs
    10. Industries That Benefit from 3PLs: Top industries that gain value from outsourcing logistics to 3PL
    11. In-House Fulfillment vs. 3PL: Side-by-side comparison
    12. How to Choose the Right 3PL: How to pick the right 3PL that aligns with your business?
    13. 3PL Red Flags: Common red flags to help you make a smart decision
    14. Technology in 3PL: Why seamless integrations are essential?
    15. ROI of Outsourcing Logistics: Buske Logistics case study - 3PL in action
    16. Myths About 3PL: Biggest myths about 3PL—explained and debunked
    17. The Future of 3PL: Third-party logistics in 2025 and beyond
    18. 3PL FAQs: Frequently asked questions about the top 3PLs and why
    19. 3PL Glossary: Essential 3PL terms and logistics terminology

    Quick 3PL Overview and Why It’s More Relevant Than Ever

    If you’re asking “What is 3PL?” or searching for a detailed 3PL guide that explains everything you need to know about third-party logistics, you’ve landed in the right place. In this definitive guide, we break down what 3PL means, how it works, what services it includes, and why outsourcing logistics is becoming a strategic advantage for businesses across industries.

    In fact, the 3rd party logistics (3PL) industry is set to grow from $1,184.48 billion in 2024 to $2,448.06 billion by 2034, expanding at a 7.5% CAGR (Source: Polaris Market Research). With businesses increasingly outsourcing logistics, the right 3rd party logistics company can cut costs, improve efficiency, and scale your operations seamlessly.

    If you’re facing rising customer demands and supply chain challenges, you’re not alone. This fully updated guide will show you how third-party logistics can drive cost savings, scalability, and growth in 2025 and beyond. It will help you:

    • Understand the meaning of 3PL
    • Explore the benefits and limitations of 3PL providers
    • Discover the different types of logistics partners (3PL vs. 4PL vs. 5PL)
    • Learn how to choose the right 3PL provider for your business
    • Dive into pricing structures, core services, and red flags to watch out for

    Let’s get started.

    What is 3PL? (Third-Party Logistics Explained)

    3PL, short for third-party logistics, refers to the outsourcing of eCommerce, retail, or B2B logistics operations to a specialized external partner. A 3PL provider typically handles warehousing, inventory management, order fulfillment, and shipping—all so you can focus on running your business.

    Think of a 3PL as an operational engine that powers your back-end supply chain.

    3PL Meaning in Business

    How a 3rd party logistics - 3PL Works

    In business terms, 3PL is a supply chain model where an external company takes ownership of some or all of your logistics needs. This includes:

    • Receiving and storing inventory
    • Picking and packing orders
    • Managing carriers and tracking
    • Processing returns and exchanges

    A 3rd Party Logistics (3PL) provider can offer: 

    • Warehousing & Storage – Storing products in strategically located distribution centers. 
    • Order Fulfillment – Picking, packing, and shipping products to customers.
    • Freight & Transportation Management – Coordinating shipments across various carriers.
    • Returns Management – Handling customer returns and reverse logistics.

    By leveraging a 3PL’s network, technology, and expertise, you can scale operations without the capital investment of building your fulfillment infrastructure.

    For a deeper understanding of how 3PL companies operate, check out What is 3PL?

    Why Is 3PL So Important in 2025?

    As customer expectations for fast and error-free delivery grow, businesses are looking for ways to streamline operations without investing heavily in infrastructure. That’s where 3PL providers come in.

    With warehousing space tighter than ever and shipping costs increasing, outsourcing logistics gives you access to an expert network, economies of scale, and the ability to scale quickly—especially during peak seasons.

    Discover How Buske Logistics Can Simplify Your 3PL and Warehousing Needs

    Types of 3PL (Third-Party Logistics) Providers

    Outsourcing logistics to a third-party logistics (3PL) provider can help your business scale efficiently and reduce operational costs. To choose the right partner, it’s essential to understand the main types of 3PL providers available:

    1. Asset-Based 3PLs

    These companies own trucks, warehouses, and equipment. They offer more control over physical assets and can provide consistent capacity and predictable pricing.

    2. Non-Asset-Based 3PLs

    Instead of owning assets, these providers leverage networks of carriers and warehouses. This model allows for greater flexibility and access to a wider range of outsourcing logistics solutions.

    3. Regional 3PL Providers

    Specialists in local and regional distribution, ideal if your operations focus on a specific area or multi-state region. They often have in-depth knowledge of regional regulations and delivery requirements.

    4. National 3PL Providers

    Capable of managing logistics across the entire country. National providers can support high-volume distribution and complex supply chains at scale.

    5. Niche 3PL Providers

    Focused on specific industries like food, automotive, or e-commerce. They bring specialized expertise and tailored solutions to unique supply chain challenges.

    6. Full-Service Logistics Companies

    Offer end-to-end services, from warehousing and transportation to inventory management and fulfillment. These third-party logistics partners can handle your complete logistics operation under one roof.

    Understanding these types of 3PL providers will help you select the best fit for your business goals and operational needs. By recognizing the strengths and specializations of each type, you can make more informed decisions that support efficiency, scalability, and long-term growth.

    3PL vs. 4PL vs. 5PL: What’s the Difference?

    Choosing the right logistics partner starts with understanding the differences between third-party logistics (3PL), fourth-party logistics (4PL), and fifth-party logistics (5PL) providers. Each model offers a unique level of control, integration, and strategic oversight for outsourcing your supply chain operations. Here's a breakdown:

    3PL vs. 4PL vs. 5PL: What’s the Difference?

    Key takeaway: 3PL is hands-on and service-driven, while 4PL and 5PL are more strategic and data-driven.

    Core 3PL Services You Should Know

    When you partner with a third-party logistics (3PL) provider, you gain access to a wide range of services designed to streamline your supply chain. While offerings can differ between companies, most 3PLs deliver a core mix of operational support that includes:

    1. Warehousing

    Warehousing is one of the core 3PL services that provides secure storage for your products in ambient, temperature-controlled, or cold storage facilities. By outsourcing logistics to a third-party provider, you can scale your storage needs without investing in your own warehouse space.

    Example: A food distributor uses temperature-controlled pallet storage to keep perishable products fresh before shipping to grocery chains.
    Services:

    • Pallet storage
    • Shelf/bin storage
    • Cross-docking

    2. Order Fulfillment

    Order fulfillment covers essential 3PL services such as pick-and-pack, packaging, labeling, and shipping. Outsourcing logistics ensures your customer orders are processed accurately and delivered on time.

    Example: An online apparel brand relies on a 3PL to pick customer orders, pack them in branded boxes, and ship them directly to shoppers.
    Services:

    • DTC fulfillment (eCommerce)
    • B2B retail fulfillment
    • Kitting and assembly

    3. Freight and Transportation Management

    Freight and transportation management involves coordinating carrier relationships and selecting the best shipping options for your business. These 3PL services help you optimize delivery routes and reduce transportation costs when outsourcing logistics.

    Example: A manufacturer uses a 3PL to coordinate LTL shipments and track deliveries to multiple distribution centers nationwide.
    Services:

    • Small parcel
    • LTL/FTL (Less-than-truckload/Full-truckload)
    • Freight forwarding

    4. Reverse Logistics

    Reverse logistics handles returns, restocking, and disposal of products that come back from customers or retail partners. By outsourcing logistics to a 3PL, you gain efficient processes that protect your brand reputation and recover value from returned goods.

    Example: An electronics company partners with a 3PL to process customer returns, test devices, and refurbish them for resale.


    5. Value-Added Services

    Value-added services include specialized solutions such as custom packaging, product assembly, and quality inspections. These 3PL services allow you to tailor your supply chain when outsourcing logistics to meet unique customer requirements.

    Example: A cosmetics brand uses custom packaging and quality inspections to ensure products meet strict retail standards before shipping.
    Services:

    • Custom packaging
    • Product assembly
    • Quality inspections
    • Barcode labeling
    • And more

    Benefits of Using a 3PL Provider

    Outsourcing logistics to a third-party logistics (3PL) provider offers far more than just extra warehouse space. By leveraging 3PL services, businesses can unlock efficiencies, reduce costs, and deliver a better customer experience across every stage of the supply chain.

    ✅ 1. Cost Savings

    Outsourcing logistics to a 3PL provider eliminates the need to invest in your own warehouses, hire full-time warehouse staff, or maintain expensive transportation fleets. In fact, over 90% of Fortune 500 companies now use at least one 3PL provider, highlighting how essential logistics outsourcing has become for cutting costs and improving service.


    ✅ 2. Scalability and Flexibility

    3PL services make it easy to scale operations up during peak seasons and dial them back during slower periods without the burden of fixed costs. This flexibility means you can respond quickly to market demands while maintaining operational efficiency.


    ✅ 3. Broader Geographic Reach

    With strategically located fulfillment centers, a 3PL provider helps you reach customers faster across multiple regions. This wider network lowers your average shipping times and reduces delivery costs, strengthening your competitive edge.


    ✅ 4. Deep Industry Expertise

    3PL companies employ experienced logistics professionals and compliance experts who stay on top of regulations, carrier relationships, and best practices. Leveraging this knowledge reduces costly mistakes and ensures your supply chain runs smoothly.


    ✅ 5. Advanced Tech Integrations

    A reliable 3PL service can connect seamlessly with your systems using WMS platforms, APIs, EDI, and marketplace integrations like Shopify or Amazon. This real-time visibility improves inventory accuracy and speeds up order processing.


    ✅ 6. Improved Customer Experience

    Fast, accurate deliveries powered by professional 3PL services enhance your brand reputation and customer satisfaction. By outsourcing logistics to a proven partner, you can consistently meet delivery promises and improve repeat purchase rates.


    ✅ 7. Risk Reduction and Compliance Support

    3PL providers understand complex regulations, customs requirements, and carrier insurance policies. Their expertise in risk management protects your business from compliance issues and costly penalties.


    ✅ 8. Access to Value-Added Services

    Many 3PL providers offer kitting, custom packaging, labeling, and returns management as part of their 3PL services. These value-added options help create a smoother end-to-end experience for your customers.


    ✅ 9. Data-Driven Decision Making

    3PL services often provide powerful analytics dashboards and reporting tools. Leveraging this data helps you track key performance metrics, identify trends, and make informed decisions to optimize your supply chain.

    When Should You Outsource to a 3PL?

    When should you consider outsourcing to a 3PL provider? If managing logistics in-house is starting to drain your time, budget, or customer satisfaction, it may be the right moment to partner with an experienced third-party logistics company.

    You're likely ready for a 3PL when:

    ✅ Your team is spending too much time shipping orders.
    ✅ You’re running out of storage space.
    ✅ Order errors and delays are impacting customer satisfaction.
    ✅ You want to expand into new markets without investing in physical infrastructure.
    ✅ You need logistics compliance for major retailers (e.g., EDI, routing guides).

    How 3PL Pricing Works

    Understanding how 3PL pricing works is essential before you start comparing providers. Pricing structures vary based on the services you need, your order volume, and the complexity of your supply chain.

    Expect pricing to be broken into:

    • Setup fees: One-time onboarding and integration costs
    • Storage fees: Charged per pallet, bin, or square foot
    • Pick & pack fees: Per order or per item
    • Shipping fees: Carrier-based, sometimes passed through at cost
    • Returns processing: Fees for inspection, restocking, and customer service

    Tip: Always ask for a detailed breakdown and check for hidden charges or volume minimums.

    Check out our 3PL Pricing Guide for more comprehensive details.

    What Goes Into Fulfillment Costs? 

    When outsourcing logistics, pricing transparency is key. Yet, many top 3rd party logistics companies don’t disclose their full cost breakdown upfront. This can lead to unexpected fees, making it harder for businesses to budget effectively. So here’s a breakdown of the key cost factors that impact your 3PL expenses. 

    Storage Fees: Paying for Warehouse Space 

    What it covers: The cost of storing your inventory in a fulfillment center. Fees depend on how much space your products take up and how they’re stored. 

    Common Pricing Models:

    Common Pricing Models

    Buske Tip: Seasonal storage costs can fluctuate. Some 3PLs increase pricing during peak seasons—make sure to confirm this upfront. 

    Pick & Pack Fees: The Cost of Order Fulfillment 

    What it covers: Labor for picking, packing, and prepping each order for shipment.

    How it’s charged:

    • Per order: A flat fee per order processed.
    • Per item/SKU: Additional fees for multiple items in a single order. 

    Pick & Pack Pricing Example:

    If a 3rd party logistics (3PL) charges $2.50 per order and $0.50 per additional item, an order with 3 items would cost: 

    $2.50 (base order fee) + ($0.50 x 2 additional items) = $3.50 per order 

    Buske Tip: If a company fulfills over 1,000 monthly orders, ask about volume discounts—some 3PLs offer reduced rates at higher volumes.

    Shipping Costs: Carrier Rates & Delivery Fees 

    What it covers: The cost of shipping your products to customers. This is typically the largest expense in 3PL fulfillment. 

    Key factors that impact shipping costs:

    • Carrier choice: UPS, FedEx, DHL, USPS, LTL freight, etc.
    • Shipping zones: Longer distances = higher costs.
    • Package size & weight: Larger, heavier packages cost more.
    • Shipping method: Expedited shipping is pricier than standard.

    Top Industries That Benefit from 3PLs  

    While almost every sector can gain value from outsourcing logistics, some industries see especially strong returns on investment.Partnering with an experienced third-party logistics provider can help you streamline operations, reduce costs, and meet unique supply chain demands with tailored 3PL services.

    These sectors see the highest returns:

    Industries that benefit from 3PLs the most

     

    In-House Fulfillment vs. 3PL: Comparison

    Deciding between managing your own fulfillment and outsourcing logistics to a 3rd party logistics provider can have a major impact on your business performance. Use this side-by-side comparison to see how each approach measures up in cost, scalability, speed, flexibility, and software integrations.

    In-House Fulfillment vs. 3PL - Table Comparison

    How to Choose the Right 3PL Partner

    Choosing the right third-party logistics partner is one of the most important decisions you’ll make for your supply chain. Not all 3PLsare created equal, so it’s essential to find one that fits your goals, budget,and industry requirements.

    Here’s how to pick one that aligns with your business: 

    1. Define Your Needs: Start with your volume, SKUs, sales channels, and compliance requirements. 
    1. Evaluate Their Infrastructure: Do they have the right facilities (ambient, cold, FDA-compliant)? What’s their national footprint?
    2. Review Tech & Integrations: Can they connect to your systems? Do they offer real-time inventory visibility?
    3. Ask About Support: Is there a dedicated account manager? What’s the average support response time?
    4. Read Reviews and Case Studies: Customer testimonials and proven results matter.
    5. Start with a Pilot Program: Test their capabilities before committing to a long-term contract.

    Red Flags: What to Avoid When Choosing a 3PL

    When evaluating third-party logistics options, it’s essential to look beyond the sales pitch. Here are some common red flags—and real-life cautionary tales—to help you make a smart decision:

    Can’t Scale With Your Growth

    If your 3PL can’t handle surges in order volume, your business will suffer. One fast-growing eCommerce brand partnered with a small provider that couldn’t expand warehouse space quickly enough, resulting in a 6-week backlog during holiday launches. 3PL explained simply: scalability must match your ambitions.

    Lack Modern Technology

    Avoid providers without a warehouse management system (WMS) or real-time tracking tools. A health product company discovered too late that their 3PL relied on manual spreadsheets, causing inventory errors and lost shipments that cost thousands in refunds.

    Have Unclear or Hidden Pricing Models

    Watch for vague proposals or confusing fee structures. A retailer signed with a logistics partner promising “low rates,” only to be hit with surprise handling surcharges that wiped out their margins. Choosing a 3PL provider with transparent pricing protects your bottom line.

    Can’t Meet Your SLAs

    Service level agreements (SLAs) are non-negotiable. A subscription box business trusted a provider that consistently missed shipping deadlines, driving customer churn and damaging their reputation. Make sure your 3PL has documented performance standards—and a track record of meeting them.

    Don’t Offer Transparent Customer Service

    Poor communication is a major warning sign. One manufacturer struggled for months to get basic shipment updates because their 3PL didn’t provide a dedicated support contact. Responsive, accessible customer service should always be part of the package.

    Technology in 3PL: Integrations, Visibility, & Automation

    Technology is at the heart of modern 3PL services, driving efficiency, accuracy, and customer satisfaction. When outsourcing logistics to a third-party logistics provider, seamless integrations are essential to keep your operations connected and running smoothly.

    How Integrations Work

    Integrations link your sales channels, inventory systems, and fulfillment processes directly with your 3PL’s warehouse management system (WMS).

    For example, connecting your Shopify or Amazon store means every order is automatically sent to the 3PL, picked, packed, and tracked in real time without manual data entry. This reduces errors, speeds up shipping, and improves the customer experience.

    Why They Matter

    Robust integrations also enable ERP connectivity and EDI compliance, allowing your business to synchronize purchase orders, inventory updates, and invoices across multiple systems. Whether you’re selling on marketplaces, distributing wholesale, or managing B2B transactions, these connections ensure your supply chain data stays accurate and up to date.

    By leveraging the right technology, third-party logistics providers deliver the visibility and automation you need to scale confidently and meet rising customer expectations.

    Case Study: The ROI of Outsourcing Logistics

    Inside a 3PL (3rd party logistics) warehouse facility.

    See how partnering with Buske Logistics unlocked faster deliveries and scalable growth for real-world clients.

    At Buske Logistics, solving complex logistics challenges is what we do best. One example involves streamlining distribution for a multi-location business struggling with long delivery times and inconsistent order accuracy. By consolidating shipments and optimizing delivery routes through our advanced analytics, we reduced average delivery speed by 2 days and cut returns by 15%.

    For a leading beverage distributor facing frequent stockouts and fulfillment delays, we implemented a dynamic inventory management system and integrated real-time tracking. This solution boosted inventory accuracy to over 99% and scaled fulfillment capacity to meet seasonal demand without disruption.

    These success stories show how outsourcing logistics to an experienced 3PL services provider can transform your supply chain, reduce costs, and deliver a superior customer experience.

    For more on beverage-specific 3PL services, see our detailed guide on beverage warehousing.

    For a deeper dive into the top 3PL providers for food logistics specifically, explore our guide on selecting the best food 3PL partner.

    Myths About 3PL—Debunked

    If you’re researching what is 3PL and weighing whether outsourcing logistics is right for your business, you’ve probably come across a few common misconceptions. Here are some of the biggest myths about third-party logistics—explained and debunked:

    • “3PLs are only for big companies.”
      This is one of the most persistent myths about third-party logistics. In reality, 3PL services are used by businesses of all sizes, from startups fulfilling their first online orders to mid-sized brands scaling nationally. Modern 3PL providers offer flexible solutions that grow with you, so you don’t need a massive operation to benefit.
    • “You lose control of your brand.”
      Many companies worry that outsourcing logistics means sacrificing their brand identity or customer experience. The truth is, a quality 3PL will act as an extension of your business. From custom packaging to branded tracking emails, you can maintain a consistent brand presence at every touchpoint while still leveraging professional fulfillment.
    • “3PLs are too expensive.”
      While there are costs involved, partnering with a 3PL often saves money in the long run. When you factor in warehouse leases, staff, equipment, and carrier negotiations, third-party logistics can be far more cost-effective. Plus, predictable pricing models and scalable capacity help you avoid the hidden costs of managing fulfillment in-house.

    The Future of 3PL in 2025 and Beyond

    The logistics future is being shaped by rapid innovation and rising customer expectations. According to the Research and Markets – 3PL Global Strategic Business Report, the global third-party logistics market was valued at $1.1 trillion in 2024 and is expected to reach $1.9 trillion by 2030, growing at a CAGR of 8.5%.

    This rapid expansion is driven by advanced technologies, shifting tariffs, and the increasing focus on outsourcing logistics as a competitive advantage. Third-party logistics is evolving quickly:

    • AI and Automation: Predictive analytics, demand forecasting, and automated sorting are transforming how 3PL providers optimize supply chains and improve accuracy.
    • Micro-fulfillment Centers: Expect more urban, same-day delivery hubs that bring inventory closer to customers and speed up order cycles.
    • Green Logistics: Sustainable packaging and eco-conscious transportation methods are becoming standard as brands commit to reducing their carbon footprint.
    • On-demand Warehousing: Flexible, pay-as-you-go storage networks help businesses scale up or down without long-term leases.

    Staying ahead means partnering with 3PLs that invest in innovation, data-driven strategies, and continuous improvement to keep you competitive in the years to come.

    Discover How Buske Logistics Can Simplify Your 3PL and Warehousing Needs

    FAQs About 3PL (Third-Party Logistics)

    1. What is the difference between 3PL and 4PL logistics?
    2. How does a 3PL integrate with my Shopify store?
    3. What are the risks of using a third-party logistics provider?
    4. Is outsourcing logistics to a 3PL cost-effective for small businesses?
    5. How do 3PL providers handle returns and reverse logistics?
    6. What technology should I expect from a modern 3PL provider?

    Glossary of 3PL Terms

    Understanding logistics terminology is key to making informed decisions about your supply chain. This glossary explains essential 3PL terms you’ll encounter when outsourcing logistics to a third-party provider.

    • SKU (Stock Keeping Unit): A unique identifier assigned to each product or item in your inventory. SKUs help track stock levels, sales, and fulfillment accuracy.
    • WMS (Warehouse Management System): A software platform that manages warehouse operations like receiving, picking, packing, and shipping. A WMS is essential for real-time inventory visibility in third-party logistics.
    • FTL (Full Truckload) / LTL (Less Than Truckload): FTL means a shipment that fills an entire truck, while LTL combines multiple shippers’ freight in one trailer. FTL is usually faster, but LTL is more cost-effective for smaller loads.
    • EDI (Electronic Data Interchange): A standardized system that allows electronic exchange of documents such as purchase orders, invoices, and shipping notices. EDI integration streamlines communication between your business and your 3PL provider.
    • OMS (Order Management System): Software that tracks and manages customer orders across sales channels. An OMS integrates with WMS and other tools to automate fulfillment workflows.
    • SLA (Service Level Agreement): A contract defining the performance standards your 3PL must meet, such as order accuracy, delivery times, and response rates. SLAs protect your business and set clear expectations.
    • FIFO (First In, First Out): An inventory management method where the oldest stock is shipped first. FIFO helps prevent spoilage and ensures products remain within shelf life, especially in food and health industries.
    • Kitting: The process of combining multiple products into a single package or kit before shipping. Kitting is often used for subscription boxes, promotional bundles, and product assemblies.

    Is a 3PL the Best Fit for Your Business?

    By now, you understand what 3PL is, how it works, and what benefits it can bring. Third-party logistics isn’t just a cost-saving tactic—it’s your long-term growth strategy. With the right 3PL partner, your business can move faster, scale smarter, and deliver better experiences to your customers.

    Ready to scale faster with a trusted 3PL partner? Contact Buske Logistics to learn how our warehousing and fulfillment solutions support growing businesses across the U.S.

    If you’d like to explore the best options available, check out our comprehensive list of the Top 3PL Companies for 2025.

    Partners we serve

    Learn more how Buske can help

    At Buske Logistics, we’re committed to providing the answers you need when you need them. For assistance with sales, customer service, and general information, please contact us.

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