Reverse auctions put buyers in control of procurement events, using market makers and e-sourcing platforms to collect competing supplier bids and drive prices down. They work best for clear, comparable purchases but can lead to higher lifecycle costs or supplier issues if buyers focus only on lowest price. Modern procurement platforms and processes combine auctions with supplier prequalification and multi-criteria evaluation.

What a reverse auction is

A reverse auction flips the usual auction roles: buyers advertise a requirement and suppliers bid down the price. Buyers - often large procurement teams - invite suppliers to submit competing offers for goods or services. The aim is usually to reduce purchase prices or discover more competitive suppliers.

Who runs the event: the market maker

A market maker (also called an auction facilitator or e-sourcing specialist) prepares and runs the event. They set rules, publish specifications, invite and onboard suppliers, run the live bidding, and provide the buyer with the data needed to select a winner. Modern e-sourcing platforms automate much of this work; procurement teams still control evaluation criteria and final award decisions.

Typical process

  • The buyer defines scope, quality and delivery requirements.
  • The market maker or platform invites qualified suppliers and shares the event rules.
  • Suppliers submit initial quotes and then compete in rounds or live bidding to lower prices.
  • The buyer evaluates bids against price and non-price criteria (quality, lead time, certifications, total cost of ownership) and awards the contract.

Benefits and limits

Reverse auctions can drive rapid price compression and reveal market price levels, especially for commoditized goods and repeat services. They work best when specifications are clear and comparable across suppliers.

However, price-focused bidding can mask total cost. Suppliers may underbid on price but deliver higher lifecycle costs, poorer service, or lower quality. Reverse auctions also risk excluding capable suppliers who avoid public bidding or cannot meet tight timelines.

Procurement professionals therefore pair auctions with prequalification, multi-criteria evaluation and post-award performance monitoring to protect quality and supplier relationships.

History and modern context

Online reverse auctions became widely used with the rise of internet-based e-sourcing in the late 1990s. FreeMarkets was an early vendor that helped popularize the approach in corporate procurement; its founding details and early valuation are reported in contemporary business press but should be verified for precise dates and figures .

Today many enterprise procurement suites (for example, SAP Ariba, Coupa, Jaggaer and others) include reverse-auction or e-sourcing modules and procurement teams use them as one tool among many in strategic sourcing.

When to use a reverse auction

  • Commodity purchases with clear, comparable specifications.
  • High-volume or repeat purchases where price is a major driver.
Avoid using reverse auctions when quality, innovation or partnership are primary objectives, or when requirements are still evolving.

Practical advice

Prequalify suppliers, define evaluation criteria that include non-price factors, and model total cost of ownership before running an auction. Use the auction to inform negotiation, not as the sole decision trigger.

  1. Confirm the founder name, founding year, and early valuation/exit details for FreeMarkets (references in late 1990s/2000 business press).
  2. Verify the specific anecdote about FreeMarkets being built for $50 million on the banks of Pittsburgh's Monongahela River and the correct source citation.

FAQs about Online Reverse Auction

How does a reverse auction differ from a regular auction?
In a reverse auction the buyer defines the requirement and suppliers compete by lowering prices; in a regular auction sellers offer items and buyers bid prices up.
What types of purchases are best for reverse auctions?
Commoditized, repeatable goods and services with clear, comparable specifications and measurable delivery requirements.
Can reverse auctions harm supplier relationships?
Yes. Overemphasis on price can strain relationships and exclude suppliers who prefer negotiated deals or long-term partnerships.
Do reverse auctions guarantee the lowest total cost?
No. They can deliver lower unit prices but not necessarily the lowest total cost of ownership; buyers should assess quality, service and lifecycle costs too.
Which software supports reverse auctions today?
Many enterprise e-sourcing suites include reverse-auction features (for example, SAP Ariba, Coupa, Jaggaer), though buyers should evaluate platforms against their process needs.