Every number, and where it came from.

How fragmented, and how it is known

Agency	Dental clients	Share of 178,000	Source, accessed 29 July 2026
ProSites	7,500	4.2%	prosites.com — “trusted by over 7,500 dentists”
TNT Dental	1,400+	0.8%	dentalintel.com partner listing
Golden Proportions	213 live sites	0.1%	BuiltWith technology detection
Officite	not published	—	Describes “thousands” of sites; no count that could be verified
Three that can be sized	~9,100	5.1%	Sum of the rows above

Practice count and industry fragmentation: IBISWorld, Dentists in the US — “highly fragmented with no companies holding a market share greater than 5%”, accessed 29 July 2026. That figure describes dental practices rather than their marketing suppliers, which is why the suppliers are sized separately above.

Contract value benchmark: Weave Communications (NYSE: WEAV) reported $239.0M revenue for 2025 across nearly 40,000 locations, roughly $5,975 per location per year (Form 10-K, filed March 2026, accessed 29 July 2026). Weave sells front-office communications rather than demand generation, so the scope differs — but the $16,200 assumption sits well above the only audited comparable in the category and is treated as untested.

DSO consolidation is going both ways

Affiliation is reported at 13–16% of practices, and some analysts project far higher by 2035. The 65% independent assumption depends on that. The operating evidence in 2025–26 does not point one way. It also matters less than it looks: small and mid-size DSOs are buyers rather than lost customers, and they are kept out of the market figures entirely.

Platform	Direction	What is reported	Source, accessed 29 July 2026
Sonrava Health Western Dental, Brident, DentalWorks, Perfect Teeth, Vital Smiles · New Mountain Capital	Retrenching	Negotiating an out-of-court restructuring with lenders via Greenhill and Ropes & Gray. Brident’s Texas footprint down from 130 offices in late 2022 to 103 by mid-2026 — a 21% contraction — with further closures reported.	Texas Dentists for Medicaid Reform; The Molar Report
Affordable Care Morrisville, NC	Restructuring	Reported to be passing to its direct lenders under a restructuring agreement to reduce debt.	Becker’s Dental Review
Smile Brands Bright Now!, Castle Dental, Monarch Dental, Midwest Dental · Gryphon Investors	Smaller	Reported at nearly 700 affiliated practices across 30 states in 2022; described as 600+ offices across 29 states in 2026. Office counts are inconsistently defined between sources, so treat the direction as more reliable than the delta.	Group Dentistry Now (2022); Medix Dental (2026)
Gen4, Modis, SGA Dental	Merged · terms undisclosed	Combined during 2026. A merger between mid-size platforms is not evidence of health — it can equally be two subscale operators joining because neither could grow alone, or a sponsor arranging an exit. Terms were not disclosed, so it cannot be told which.	DrBicuspid
Castle Dental historical	Precedent	Restructured roughly $70M of senior secured and subordinated debt in 2002 as a public company, with lenders taking majority voting rights, before being acquired by Smile Brands in 2004. The leverage problem in this model is not new.	SEC Form 8-K, July 2002

Of the five platforms with recent operating evidence that could be found, three are smaller or in a lender workout and one merged on undisclosed terms. None was found demonstrating profitable organic growth in this window. That is not a claim that none exists — five were looked at, and merger activity says nothing either way about whether the acquirer is healthy. Falling Medicaid reimbursement, clinician availability, PPO patients trading up on service quality and debt raised in a cheaper rate environment press hardest on the volume-and-Medicaid platforms, which is where the closures are concentrated. The conservative 65% independent assumption is kept rather than claiming the trend that suits the model.

Either direction works for the model, which is why no prediction is made. If affiliation accelerates, a 600-office platform becomes one contract rather than 600 lost customers. If it stalls, the independent base holds and the customer has more reason to differentiate. Separately, patients arriving through AI search have already narrowed their question and are choosing on whether a practice can be found for a specific treatment and can hold a credible conversation about it — which rewards marketing rather than scale. The $16,200 contract value and the 65% independent share remain Quadfence’s own assumptions and are labelled as such throughout.

Consolidation on the supplier side: Rockbridge Growth Equity acquired ProSites in October 2019 and has completed four add-ons since, most recently GeniusVets in December 2025. Trinity Hunt Partners invested in TNT Dental in March 2025, stating an intention to build a specialised digital marketing platform across dental, legal, home services and fee-for-service medical. Both accessed 29 July 2026.