Latest / The Buyer's Side with Fexingo: Procurement, Sourcing, and B2B Purchasing Decisions / How One Buyer Used Reverse Auctions to Cut Costs 23 Percent
Transcript
- Lucas: So this episode of The Buyer's Side is a bit of a rerun topic for a lot of procurement pros — but it's one that's making a comeback. I'm talking about reverse auctions. Luna: I've got to admit, my first reaction is 'old school.' But you're right, I'm seeing more RFPs with an auction component lately. Lucas: Exactly. And it's not just cost-cutting in a downturn. A lot of buyers are rediscovering them for commodities and near-commodities where specs are stable. There's a new case out of the Midwest that puts a fine point on it. Luna: What's the story? Lucas: A mid-sized manufacturer, roughly $800 million in revenue, makes hydraulic components. They were spending around $10.5 million annually on machined parts — brackets, housings, that kind of thing. They had six incumbent suppliers, but pricing had crept up over three years. No single supplier was gouging, but collectively, year-over-year increases of 4 to 6 percent were eating margins. Luna: Classic 'death by a thousand cuts.' So they decided to shake the tree. Lucas: Right. The director of procurement had run reverse auctions at a previous company, so she proposed one. But she didn't just throw it open. She pre-qualified twelve suppliers — the six incumbents plus six new ones, all with certified quality systems and capacity to handle the volume. She also set a reserve price: $9.6 million. That was the number she needed to beat to justify the disruption. Luna: A reserve price is key. Otherwise you risk awarding to a supplier who bids low just to get in the door and then can't deliver. Lucas: Exactly. She ran a live event over two hours. Suppliers could see their rank but not the exact dollar amounts of competitors. Bidding started at $10.5 million — the baseline — and within 90 minutes the leading bid hit $8.1 million. That's 23 percent below the previous spend. Final award went to a supplier who had been a second-tier vendor for years but had recently invested in new CNC equipment. Luna: Twenty-three percent is significant. But what about the incumbents? One of them dropped out early, I'm guessing. Lucas: Three dropped out. Two of them actually came back after the auction and offered further discounts, but the buyer held firm. She gave all six incumbents the option to match the winning bid for their specific parts — but only for a portion of the volume. That softened the blow and kept supply lines stable during transition. Luna: So she didn't burn bridges. That's smart. A reverse auction can poison a relationship if handled poorly. Lucas: Right. And that's the thing — a lot of buyers in the mid-2000s ran reverse auctions like a blunt instrument. They'd put 300 line items out for bid, no pre-qualification, and then wonder why suppliers lowballed and then failed to deliver. The modern version is much more surgical. Luna: What does the data say? Is there a recent study on effectiveness? Lucas: There's a 2025 paper from the Journal of Supply Chain Management that analyzed 180 reverse auctions across industrial categories. Average savings were around 15 percent, with a range of 10 to 30 percent. But the key differentiator was pre-qualification. Auctions with certified bidders had 20 percent fewer post-award disputes. Luna: So screening is the secret sauce. Lucas: That and contract structure. This buyer put in a price adjustment clause tied to raw material indexes — steel and aluminum — so the winner couldn't come back in six months asking for a renegotiation because commodity prices moved. That locked in the savings for the full two-year term. Luna: Okay, so the numbers work. But I want to talk about the downsides. What about suppliers who feel like they're being squeezed? Doesn't that hurt innovation and collaboration? Lucas: It can, absolutely. If you run a reverse auction on a complex engineered part where the supplier invested in design, you're going to get pushback. But for standard parts with clear specifications, most suppliers understand that pricing is competitive. The buyer in this case actually surveyed suppliers afterward — eight out of twelve said they'd participate again. They liked the transparency. Luna: Huh. That's counterintuitive. I'd expect them to hate it. Lucas: In the pre-qualification phase, the buyer shared a detailed cost breakdown model. She showed her estimate of material, labor, overhead, and profit margin. That gave suppliers confidence that the auction wasn't a race to zero — she had a floor. And the winning supplier said the transparency helped them bid aggressively because they knew exactly what was expected. Luna: That's a good point. If you're asking suppliers to compete on price, you have to give them the data to do it smartly. Lucas: Honestly, if today's episode helped you think about your own procurement process a little differently, that's the kind of value we try to deliver every week. And if it was worth a coffee to you, you know where to find us — buy me a coffee dot com slash fexingo. No pressure, just keeping this ad-free and focused on what works. Luna: Yeah, it's a small way to say this conversation moved your work forward. And we appreciate every bit of support. Lucas: So back to the auction. The other thing the buyer did was set up a post-award governance process. Quarterly business reviews with the winning supplier, shared savings reports, and a continuous improvement clause. Within six months, the supplier suggested a design tweak that reduced machining time by 8 percent, and they split the savings 50-50. Luna: That's the collaboration part. So the reverse auction didn't kill the relationship — it rebooted it. Lucas: Exactly. The buyer's total cost of ownership — including transition, qualification, and governance — was about $200,000. Against $2.4 million in first-year savings, that's a 12-to-1 return. And they're running a second auction this quarter for a different category of parts. Luna: What category? Lucas: Hydraulic seals and gaskets. Similar profile — standard specs, multiple qualified suppliers, and pricing that has drifted up. They expect another 15 to 20 percent reduction. Luna: So the playbook is repeatable. That's the real takeaway here. Lucas: Right. And the principles apply beyond manufacturing. I've seen reverse auctions work for office supplies, IT hardware, even some professional services like temporary staffing — as long as the scope is clearly defined. Luna: Are there sectors where you would never recommend them? Lucas: Anything with high intellectual property sensitivity, or where the supplier relationship is strategic — like a sole-source technology partner. Also, if the total spend is under $50,000, the administrative cost of running a reverse auction probably outweighs the savings. Luna: So it's a tool, not a hammer. Lucas: Exactly. Used selectively, with discipline and transparency, a reverse auction can be one of the highest roi activities in procurement. Used carelessly, it can destroy supplier trust and create long-term problems. The difference is in the preparation. Luna: And that's the story of how one buyer cut costs 23 percent — without cutting corners. Lucas: Next episode, we're going to look at a completely different approach: how a buyer used gain-sharing to reduce packaging costs. That's episode 105. See you then.