The MLS Problem in Public Procurement

The short version

Before 2006, if you wanted to know what a house down the street sold for, you asked a real estate agent. The information existed — recorded, public, sitting in county assessor files — but the practical path to it ran through someone who controlled access to it. The Multiple Listing Service was the gatekeeper, and it worked well for the people who held the keys.

Zillow launched in February 2006 with roughly 40 million homes and zero listings, built entirely on public county records. It drew a million visitors in two days. Not because it had better data — it had worse data — but because it removed the intermediary between the public and information about the public's own neighborhoods.

Public procurement has the same structure today.

A city is legally required to publish its solicitations. That notice is public information the moment it exists. But the practical path between that notice and the businesses that would bid on it runs through commercial intermediaries who collect the notices, place them behind subscriptions, and sell access — frequently back to the small firms the city most wants to reach.

The city publishes. A third party monetizes the distance. And the city, not the intermediary, pays for the thin bidder pool that results.

What the access layer actually charges

One of the largest municipal bid-distribution services publishes its rates openly:

The same company markets itself to governments on the opposite terms: "DemandStar is free for governments. We believe procurement software should save you money, not cost you money."

Both statements are true simultaneously. The government side is free because the vendor side is not. That is the business model, stated plainly by the business itself.

To its credit, the company anticipates the objection. Its own FAQ asks:

"Why are bid downloads outside my subscription area $5? Isn't that public information?"

The answer given is that the charge covers convenience rather than the information. That is a defensible position — aggregation is real work and someone has to pay for it. The question this paper raises is not whether the work has value. It is who ends up paying, and what it costs the city that published the notice in the first place.

The structure is deliberate, not accidental

Three features of this layer are worth stating precisely, because together they explain why the problem persists.

One. Exclusivity is marketed as the product. A competing network advertises to vendors that a solicitation "goes exclusively on BidNet Direct — giving suppliers first access to bids they won't find anywhere else." The selling point is not that the notice is easier to find. It is that it cannot be found elsewhere.

Two. Aggregation is prohibited by contract. Terms of use in this sector routinely bar "any robot, spider, data scraping, crawler or other extraction tool," prohibit redistribution, and specifically forbid use "for purposes of commercial data aggregation." The information is public. The compiled version of it is contractually fenced.

Three. Nothing is portable. We examined nine widely used commercial eProcurement and bid-distribution platforms. Not one publishes an open API or feed of open solicitations. A city that wants its own notices to travel further has no supported technical path to send them anywhere.

The layer has also consolidated. Three private-equity-backed groups now hold most of the major platforms, each having changed hands within the last six years. This is a market being assembled, not a set of independent local services.

When it reached a courtroom

In September 2020, a bid-monitoring company filed suit in Minnesota district court against Ramsey County and a bid-distribution vendor, alleging it could not obtain public bid documents from either party.

The complaint describes the experience directly: the county "told BidPrime to request the documents from DemandStar, which, in turn, sent BidPrime back to Ramsey" — the requester "bounced between the defendants, each time coming up emptyhanded."

In November 2020, Ramsey County agreed to a stipulated injunction and stopped withholding the bid documents.

That is the thesis of this paper as a documented event rather than an argument. A public record became practically unreachable because a private intermediary sat between the requester and the government that created it — and it took litigation to restore access.

We note the limits of this example carefully. The stipulated injunction resolved the matter as to the county. The final disposition of the claims against the vendor is not publicly documented, and we make no assertion about it. The point here is not that any company acted unlawfully; it is that the structure produced an outcome in which public documents could not be obtained from anyone.

Where the analogy holds, and where it breaks

The comparison to Zillow is useful, and it is also imperfect. Both parts matter.

Where it holds. Zillow began with public records and no cooperation from the incumbent, built an audience on that foundation, and only later received the listings directly. When its largest syndication feed was cut off in April 2015, its listing count fell by less than 12% — by then it had signed agreements with more than seventy MLSs directly. The audience came first; the data followed. A brokerage that pulled its listings in 2011 restored them in 2014, citing the portal's reach.

Critically, Zillow charged agents, not consumers. Listings and search were free permanently. The side of the market with something to sell paid; the side looking for information did not.

Where it breaks — three objections a procurement director should raise.

"Zillow had to fight for data it had no legal right to. You say bid notices are already public. If it were that easy, why doesn't this exist?"

Fair, and the honest answer is that the barrier was never legal. It is contractual and commercial — exclusivity arrangements and anti-aggregation terms, not public-records law. That is a lower wall than Zillow faced, but it is a real one, and it explains the gap.

"Zillow's data quality was poor early on. Stale listings are worse in procurement than in real estate."

Correct, and this is the strongest objection. A 2012 industry study found a substantial share of Zillow's active listings were no longer for sale. A vendor who prepares a bid for a closed solicitation blames the city, not the aggregator. For a bid map, freshness is not a feature — it is the entire product. Any city considering this should ask exactly how listings are kept current and what happens when one goes stale.

"Zillow monetized agents. Your analog is monetizing our vendors — which is the thing we object to."

Here the analogy cuts the other way. Zillow charged the supply side and kept the public side free. Charging vendors to see public notices is the arrangement being displaced, not replicated.

What this costs the city

This is not principally a fairness argument. It is a pricing argument.

Research at Yale, Columbia and UC Berkeley — funded by the U.S. Department of Transportation and the National Bureau of Economic Research — found that deliberate outreach to widen the bidder pool is associated with 17.6% lower project costs, and that 70% of states rarely do it. Procurement officials surveyed for that study named thin competition as a cost driver repeatedly and unprompted.

Public procurement typically draws two to three bids. Every barrier between a published notice and a qualified firm reduces that number further, and the reduction shows up in what the city pays — on every award, permanently.

An access toll between a city's notice and its market is a tax the city pays without receiving the revenue.

What a city can do about it

Cities have more room here than most assume.

Additional publication is expressly authorized. California's public contract code permits an agency to "give such other notice as it deems proper." Ohio's permits notice "distributed by electronic means." Virginia's contemplates posting on "other appropriate websites." We found no statute, case, or attorney-general opinion suggesting a city takes on risk by also publishing its notices more widely.

The exposure runs the other direction. A city that posts only to a third-party platform, and not through its required channel, has a defective solicitation. Publishing more broadly is the conservative choice, not the adventurous one.

Exclusivity is a choice, not a requirement. Where a platform's terms restrict where a city's own notices may appear, that is a contractual term the city agreed to and can renegotiate. Cities routinely require that their public records remain publicly reachable; the same principle applies to a bid notice.

Our position

Mindy publishes municipal, county and district solicitations on a free public map. Cities post at no cost. Businesses search at no cost. No subscription, no per-document charge, no login between a public notice and the public that paid for it.

We are onboarding cities one at a time, and publishing what we learn as we go — including bid counts and local award share, which currently exist nowhere as public statistics.

One commitment, stated plainly, because the obvious question about a free service is what happens once it has the inventory: public bid notices posted to Mindy remain free to find, free to search, and free to receive. If we ever build paid products, they will not be a toll on access to public procurement information. That is the arrangement this paper argues against, and we are not interested in becoming the next version of it.

Sources

Access-layer pricing and terms DemandStar / Euna OpenBids published supplier pricing, government pricing, and terms of use (accessed 2026). SOVRA / BidNet Direct supplier marketing materials (2026). Platform API and feed availability assessed across nine commercial eProcurement and bid-distribution platforms.

Litigation BidPrime Inc. v. DemandStar Corp. and Ramsey County, Minnesota District Court, Case No. 62-CV-20-4751 (filed September 18, 2020). Stipulated injunction as to Ramsey County, November 2020. Final disposition as to DemandStar is not publicly documented; no claim is made regarding it.

Procurement cost and competition Liscow, Z., Nober, W., & Slattery, C., Procurement and Infrastructure Costs (July 2024), funded by U.S. DOT and NBER. Outreach finding p. 25, Appendix Table E.1 (Romano-Wolf adjusted p = 0.01); 70% figure p. 17, Appendix Figure C.2; official quotation p. 17. Scope: state highway resurfacing, projects begun 2018–2019 — the mechanism transfers; the dollar magnitudes should not be applied to a municipal budget. Open Contracting Partnership (April 2025) — two-to-three bids observation; cross-jurisdictional, not a U.S. municipal statistic.

Publication authority Cal. Pub. Contract Code § 22037; Ohio Rev. Code § 731.14; Va. Code § 2.2-4302.1(2).

Zillow precedent Zillow Group Form S-1 and subsequent public filings; industry reporting on ListHub syndication termination (April 2015) and brokerage listing restoration (2014); WAV Group listing-accuracy study (2012) — commissioned by a Zillow competitor, and we note that in citing it.

GovCon Giants · Mindy — getmindy.ai

The access layer, in its own words

1. The two-sided pitch — the whole model in two quotes

What they tell governments:

"DemandStar is free for governments. We believe procurement software should save you money, not cost you money."— DemandStar pricing page

What they charge vendors:

— DemandStar supplier pricing page

Both statements are true at the same time. It is free to governments because it is not free to vendors.

That is not a criticism of the company — it is a description of the business model, published by the business. The question this raises is not whether aggregation has value. It is who pays for it, and what it costs the city whose notice started the chain.

2. They ask the question themselves

The single most useful line in this entire body of evidence. From their own FAQ:

"Why are bid downloads outside my subscription area $5? Isn't that public information?"— DemandStar FAQ

They posed the objection unprompted, because vendors ask it often enough to warrant an entry. Their answer is that the charge covers convenience rather than the information itself — a defensible position.

But the question is theirs, not ours. When the gatekeeper concedes the question is reasonable, we do not have to argue that it is.

3. Exclusivity marketed as the product

"It goes exclusively on BidNet Direct — giving suppliers first access to bids they won't find anywhere else."— SOVRA / BidNet Direct supplier marketing

Read that as a vendor pitch and it is a benefit. Read it as a city and it is the opposite of what a solicitation is for.

The selling point is not that the notice is easier to find. It is that it cannot be found anywhere else. A public notice's entire purpose is reach; here, restricted reach is the feature being sold.

4. Aggregation prohibited by contract

Terms of use bar "any robot, spider, data scraping, crawler or other extraction tool," prohibit redistribution, and forbid use "for purposes of commercial data aggregation" or by "our direct competitor."— DemandStar terms of use

The underlying notices are public records. The compiled version is fenced by contract.

This is the mechanism that keeps the fragmentation in place. Not public-records law — no statute prevents anyone from collecting public notices. A commercial agreement does.

5. Nothing is portable

Of nine widely used commercial eProcurement and bid-distribution platforms, not one publishes an open API or feed of open solicitations.

Platforms assessed: OpenGov, PlanetBids, Vendor Registry, bids&tenders, Euna (Bonfire / Ionwave / OpenBids), SOVRA / BidNet, BidSync, Public Purchase.

A city that wants its own notices to travel further has no supported technical path to send them anywhere.

Two precision notes, so this claim survives a fact-check:

• Euna advertises "150+ API routes." Those are internal ERP integration endpoints, not an open bid feed. Easiest error in this space.
• Some platforms return HTTP 403 to automated requests. That is bot-blocking, not a login wall — do not describe it as gating.

6. Their scale claims work in our favor

Euna Solutions: 3,000+ customers, 1.25M+ suppliers SOVRA: 7,000 public entities, 1M vendors

Cite these as evidence that the demand is real and already at scale. We are not arguing that nobody wants aggregated bid information — plainly millions of suppliers do.

We are arguing that the layer serving that demand meters access to public records, and that the city publishing the notice absorbs the cost in a thinner bidder pool.

Note: third-party sources claim ~1,400 agencies for DemandStar while the company's own page says "hundreds." Use their number.

7. The consolidation, dated

Three private-equity-backed groups now hold most of the layer. Every major platform changed hands within six years:

This is a market being assembled, not a set of independent local services.

Date every claim — these names change. Periscope became SOVRA in 2024; DemandStar became Euna OpenBids in 2025. Use current names with the former name in parentheses on first mention.

The block, compressed to three sentences

For when you need the argument in a paragraph rather than a page:

One major bid-distribution service tells governments it is "free for governments" while charging vendors $5 per document and up to $2,699 a year for access to those same public notices. Its own FAQ poses the obvious question — "Isn't that public information?" — and its terms of use separately prohibit "commercial data aggregation." A competing network sells the arrangement to suppliers as "exclusively on BidNet Direct — giving suppliers first access to bids they won't find anywhere else."

Usage rules

Do use: anything above. It is published, quoted accurately, and attributed to the source.

Handle with counsel: the BidPrime v. DemandStar and Ramsey County litigation (Minn. Dist. Ct., Case No. 62-CV-20-4751). Ramsey County's November 2020 stipulated injunction is documented. The final disposition as to DemandStar is not publicly documented — never imply an adverse finding against the company. It is the most vivid material available and the only piece carrying real risk; the quotes above make the argument without it.

Never: characterize any company as acting unlawfully. The argument is structural, not accusatory — the layer produces bad outcomes for cities while every participant behaves rationally within it. That framing is both more accurate and more persuasive to a procurement audience, who will have working relationships with these vendors.

Always: verify pricing before publishing. These are live commercial pages and rates change.

GovCon Giants · Mindy — internal evidence reference