Procurement leaders often face a difficult question: negotiate through a Group Purchasing Organization, or go direct with the supplier? The debate over GPO or direct contracts usually gets framed as a one-time pricing contest, decided once per category and move on. The pricing data alone makes that framing hard to trust. GPOs report average savings anywhere from 10% to 22%, depending on category and industry. Yet a U.S. Government Accountability Office study found something very different. GPO-negotiated pricing actually increased hospital supply costs by as much as 37% in some cases.
Both figures are real. Both come from credible sources. And both can be true at once. That’s the first clue that the GPO or direct contracts decision isn’t a question with one answer, and it isn’t one you shouldn’t revisit. For most categories, a GPO’s negotiated pricing and a directly negotiated contract function as two parallel catalogs for the same or similar items. They’re priced differently, perform differently, and are worth comparing item by item instead of choosing between them once. The stakes are highest in healthcare, where roughly 97% of hospitals carry a GPO affiliation and the two largest GPOs, Vizient and Premier, together cover more than 60% of hospital beds nationwide. Education, manufacturing, and public-sector procurement teams run the same calculus every day, often with less public data to benchmark against. It shows up after signature, in the ongoing question of which catalog is actually winning.
The Case for GPO Contracts
Group Purchasing Organizations pool purchase volume across hundreds or thousands of member organizations. They use that collective leverage to negotiate pricing and terms no single buyer could get alone. For procurement teams under pressure to move fast, the appeal is straightforward:
- Speed. An independent supplier search takes roughly three months and 40-plus hours of sourcing work, per McKinsey benchmarks. A GPO contract is already negotiated so orders can go out much faster.
- Savings on indirect and tail spend. Reported averages vary. One large GPO puts member savings at 22% on categories members already purchase. Other industry sources cite 15% to 20%. In healthcare specifically, the Healthcare Supply Chain Association reports 10% to 18% savings compared with independent purchasing.
- Scale. Healthcare GPOs alone are credited with saving the U.S. health system an estimated $55 billion a year.
- Leverage for lean teams. Organizations without a large sourcing function get access to vetted suppliers and pre-built contracts. That substitutes for negotiating power they don’t have in-house.
This is why GPOs dominate categories like indirect supplies, MRO, and non-strategic services. It’s also why the newer generation of GPOs increasingly layer spend-analytics services on top of pricing, not just contracts. The catch is what the GPO catalog is still built on underneath: a common set of rate tiers across an entire membership, not a rate calibrated to any single organization’s real volume.
The Case for Direct, Negotiated Contracts
For any category where an organization already has real volume, direct negotiation can beat even a strong GPO deal. A CFO-focused analysis of purchasing strategy found that companies with sizable category spend captured 10% or more in additional savings. They also got better terms — by negotiating directly instead of accepting the GPO rate. The reason is structural, not aggressive negotiating. GPO pricing reflects the volume of the whole membership. Suppose an organization’s volume in a category exceeds what that common rate assumes. Staying inside the group contract then leaves money on the table.
Direct contracts also buy things a GPO agreement generally can’t:
- Full customization of terms, SLAs, and service-level commitments specific to the buyer’s operation.
- Direct accountability, with no intermediary between buyer and supplier when something goes wrong.
- Freedom from cross-subsidy. Inside a GPO, larger members effectively help cover the fixed costs of serving smaller ones.
Most experienced procurement leaders don’t treat this as either/or. The more sophisticated playbooks keep both catalogs open. A GPO contract and a direct contract can sit side by side for the same category, sometimes the same item. Pricing and performance get tracked against each other on an ongoing basis. A hospital system might buy most commodity medical supplies through its GPO catalog, while one high-volume SKU quietly performs better on a direct contract. The point isn’t to settle GPO or direct contracts once. It’s to know, item by item, which catalog is winning – and to keep checking, because that answer changes as volume shifts.
The Fee Structure That's Often Missing
Start with how GPOs get paid, since it explains a lot about the 37% figure above. Most GPO revenue doesn’t come from membership dues. It comes from vendor-paid administrative fees, capped at 3% of purchase price under the federal Anti-Kickback Statute safe harbor. In 2012, the top five GPOs collected nearly $2.3 billion in these fees. About 70% went back to hospital owners as rebates and discounts.
That leaves a real, ongoing cost that’s easy to overlook. Call it the hidden cost of contract compliance. It shows up on invoices and rebate statements long after signing. It creates a structural tension regulators have flagged more than once. A GPO’s revenue can rise alongside contract value. That’s not automatically the same thing as getting members the lowest price. None of this makes GPOs a bad choice. It does mean one thing, though: the price isn’t the whole story for either catalog.
GPO or Direct Contracts: Finding the Right Balance
The same things need watching in both catalogs, no matter which one got you the better rate at signing.
- Silent tier regression. Pricing is frequently tied to volume tiers. If purchasing dips below a threshold, unit costs can rise without notice. Someone has to watch volume against that line to catch it.
- Rebate opacity. Rebates get calculated on net purchases, gross purchases, or category-specific bases, and each method produces a different number. Without audit rights to check the math, an organization is trusting the process.
- Auto-renewal traps. Many contracts, GPO and direct alike, renew automatically unless written notice goes in during a narrow window. That window is often just 60 to 90 days before the term ends. Miss it, and the decision gets made for you: what should be an active contract lifecycle management choice defaults to whatever terms were on the page three years earlier.
- Off-contract, or maverick, spend. Savings only hold when purchasing stays inside the negotiated contract. Maverick spend is the gap between the two. The Hackett Group found organizations capture up to 16% more of their targeted procurement savings by keeping spend on-contract. That’s enough to fully protect a negotiated 10% discount.
Picture a five-year facilities contract with a 3% annual price-escalation cap. In year one, everyone on the team knows the clause by heart. By year four, the AP team has turned over twice. The cap sits buried in a PDF. A 4.5% supplier increase goes through unchallenged, on every invoice. None of these are pricing failures. They’re tracking failures. That’s how the GAO study found GPO contracts raising hospital costs by up to 37%. Other studies, meanwhile, show double-digit average savings elsewhere.
How AI-Driven Contract Intelligence Closes the Gap
Closing that gap has historically required something most procurement and AP teams don’t have. It takes a standing team whose full-time job is reading contracts, tracking tier thresholds, and watching renewal calendars. It also means reconciling rebate claims against actual purchase data, catalog by catalog. AI-driven contract intelligence changes the economics of that work. But it’s worth being precise about where that intelligence actually comes from.
A platform like ServiceNow supplies the foundation, and it’s worth being precise about which part of it. Both contracts, GPO and direct, live as records in ServiceNow’s Contract Management application. It handles contract lifecycle, automated reminders, templates, and history tracking. Now Assist in Contract Management adds conversational search on top of that same base product. Document Intelligence extracts clauses and pricing terms from each.
What turns that into a portfolio isn’t a premium ServiceNow add-on. It’s ODS’s own configuration. The tier-threshold monitoring, rebate validation, and catalog-to-catalog scoring sit in a layer ODS configures on top of ServiceNow’s base Contract Management solution.
Where the Two Catalogs Become Visible
Here’s where the two catalogs start becoming visible to buyers. ServiceNow’s Shopping Hub, the employee buying experience, already ranks catalog options and can route purchases toward preferred suppliers automatically. That same ranking logic can carry a GPO-sourced item and a directly negotiated item for the same category as two competing options. Both get continuously rescored against live purchasing data, with the better performer surfacing first. Leadership sees the portfolio-level version on a dashboard. Buyers see it as the top-ranked option the next time they shop.
Before: a spreadsheet tracks a handful of priority contracts, updated quarterly if someone remembers to. After: every contract’s pricing tiers, escalation caps, and rebate formulas are extracted into ServiceNow fields. They’re then checked continuously against live purchasing and invoice data — GPO catalog against direct catalog, item by item.
What That Layer Can Do
This kind of contract intelligence is built as a compliance layer on ServiceNow, and it can do five things well:
- Extract pricing tiers, escalation caps, and rebate formulas directly from contract language.
- Score a GPO contract and a direct contract for the same category side by side, and feed that score into Shopping Hub’s catalog ranking. Buyers then see the better-performing option first, instead of it being guessed at during renewal.
- Flag volume trending toward a tier threshold before the price actually changes, not after the invoice arrives.
- Surface renewal and notice-period deadlines automatically, so evergreen terms become a decision instead of a default.
- Validate invoiced prices and surcharges against the contracted formula, catching overcharges before payment instead of disputing them afterward.
Gartner projects that half of all organizations will use AI-enabled contract tools by 2027. And 80% of Chief Procurement Officers already plan to deploy generative AI within three years, according to a recent CPO survey. Adoption is still shallow, though: only about 4% of procurement teams that piloted generative AI in 2024 reached large-scale deployment. For organizations willing to move now, that gap is the opportunity.
The Real Question to Ask Before Your Next Contract
“GPO or direct?” is a good place to start at the negotiating table. The better question is which one keeps winning after signature, and that’s worth asking continuously, not just once. Whichever route delivers the best starting price, a better rate can show up in the other catalog next quarter. It pays to keep watching for it.
Before renegotiating a GPO agreement, or deciding it’s finally time to go direct, take stock first. Look at what current contracts in both catalogs are actually delivering against what they promised on the day they were signed. That starts with scoring the full contract portfolio, GPO and direct alike, item by item rather than category by category. That’s the discipline behind our approach to Contract Portfolio Management on ServiceNow: extract the terms, score both catalogs continuously, and feed the result into the ranking buyers already see in Shopping Hub. It’s a continuous check, not just a review at renewal. Start with the contracts closest to renewal. A missed notice window or an unchecked escalation clause can lock in another full term nobody actually chose, regardless of which catalog it came from.
