Select the logistics partner that fits your strategy, not just the lowest bidder. We bring structure and objectivity to one of the hardest decisions in your supply chain.
Choosing a 3PL, 4PL, or Lead Logistics Provider is one of the most consequential and hardest to reverse decisions a supply chain organization makes. Gilbert Sachs Group guides companies through provider selection with a structured, unbiased evaluation methodology refined across hundreds of engagements. We are independent: we do not take fees from providers, so our only interest is the right fit for you. Our team has sourced over $2B in transportation and logistics spend and delivered $250M+ in client savings.
What We Do
We manage the full provider selection lifecycle, from defining what you actually need to negotiating the contract and standing up governance. We work across 3PL, 4PL, and LLP models and help you decide which one fits.
Requirements Definition & Market Scan
We translate your operational needs into clear, weighted requirements, then scan the market to build a shortlist of providers genuinely capable of meeting them.
Structured RFP Management
We run a disciplined RFI and RFP process, including outreach, structured evaluation, and apples-to-apples scoring, so you compare providers on the factors that actually matter, not marketing.
Contract Negotiation
We negotiate rates, service levels, and terms on your behalf, using market intelligence to secure a fair, sustainable agreement and protect you from hidden cost creep.
4PL / Lead Logistics Provider Advisory
For companies considering a 4PL or LLP model, we advise on governance structures, performance frameworks, and transition planning to create a single point of accountability without losing control.
Our Approach
Every engagement follows a structured, repeatable process refined across hundreds of projects:
Define Requirements.
We work with your stakeholders to document service needs, volumes, geographies, and must-have capabilities, and weight them by importance.
Build the Shortlist.
We compare your current state against applicable regulations and industry best practice, prioritizing gaps by likelihood and potential impact so you can focus effort where it matters most.
Run the RFP.
We manage outreach, structured bids, and scoring, and facilitate site visits and clarifications so the evaluation is thorough and objective.
Negotiate & Award.
We plan the transition to minimize disruption and stand up the performance management framework that keeps the provider accountable.
Transition & Governance.
We plan the transition to minimize disruption and stand up the performance management framework that keeps the provider accountable.
Results That Speak for Themselves
- $2B+ in transportation and logistics spend sourced
- $250M+ in total client savings delivered
- 140+ logistics and supply chain specialists
- 20+ years transforming clients’ supply chain operations
Why Companies Choose GSG for 3PL & 4PL Logistics Consulting:
We are independent.
We take no fees from providers. Our recommendation is driven solely by what fits your operation and strategy.
We have been on both sides of the table.
Our team includes former logistics executives and procurement leaders who know how providers price, position, and negotiate.
We transfer knowledge, not dependence.
We hand over the evaluation tools, scorecards, and governance templates so you can manage the relationship, and the next selection, yourself.
We plan for the transition, not just the signature.
A great selection fails without a clean cutover. We build transition and governance into every engagement.
Frequently Asked Questions
What is the difference between a 3PL and a 4PL?
A third-party logistics provider (3PL) handles specific functions like warehousing or transportation management. A fourth-party logistics provider (4PL), sometimes called a Lead Logistics Provider (LLP), is a single point of accountability that manages multiple 3PLs and other providers on your behalf. We help you determine which model fits your needs.
Why use a consultant to select a 3PL instead of doing it in-house?
An independent consultant brings a structured methodology, current market intelligence, objectivity, and negotiating leverage, while freeing your team to keep running the business. The result is usually a better fit, better terms, and a faster process.
How long does a provider selection take?
Most 3PL/4PL selections run 10 to 16 weeks from requirements definition to award, depending on scope, geography, and the number of providers evaluated. We provide a detailed timeline before work begins.
Do you help after the contract is signed?
Yes. We plan the transition to minimize disruption and help stand up the performance management and governance frameworks that keep the provider accountable over time.
Are your recommendations really unbiased?
Yes. We accept no compensation from logistics providers. Our fees come only from you, which keeps our advice aligned entirely with your interests.
Ready to Find the Right Logistics Partner?
Schedule a no-obligation consultation. We’ll outline a structured path to selecting the right 3PL or 4PL that fits your operation.
Or call us directly: 561.630.0365
GSG’s expertise in ocean freight management helped us achieve breakthrough results while streamlining our global transportation procurement process.
![]()
Senior Manager
Global Ocean Procurement, McCormick
Through expert modeling and process optimization, GSG transformed our logistics operations, delivering both immediate and long-term strategic value.
![]()
Vice President Logistics
DiversiTech
Through data-driven analysis and collaborative problem-solving, GSG helped us build a stronger, more efficient freight management program that delivered immediate savings and long-term value.
![]()