A national record of lower middle market ownership transitions, the verified independent sponsors that have bought companies like them, and the capital observed financing those deals. Facts, inferences and estimates are labelled as such, with the source and the date, on every row.

Methodology

How a row earns its place

The product exists to answer four questions about any row: why this company, why now, which sponsors have bought companies like it, and who has financed them. Every mechanism below is built so that the answer can be shown rather than asserted, and nothing is claimed beyond what has been measured.

The tape

Nothing is stored as a current value that overwrites history. Each thing a source said is an observation with a subject, a predicate, a value, the date it was effective, the date we read it, the source, the URL, a quote where one exists, an evidence class (fact, inference or estimate) and a content hash. Re-reading a source is free and safe: a second sighting of the same fact increments a counter rather than creating a row. Current-state views sit on top and are rebuilt from the tape.

Entity resolution

An entity is created when nothing resolves. Resolution is by external identifier first (SEC CIK, file number, CRD, EIN), then by exact normalised name within the same entity type and, where both sides know one, the same state. Nothing is merged on a similar name. Sponsors are inferred from acquisition vehicles: two vehicles that share a named executive officer or promoter are joined at full weight, two that share a filing street address at reduced weight, and known registered-agent addresses are excluded. Every join carries the evidence that produced it and can be undone without touching the tape.

Size estimation

Private company EBITDA is rarely available. The product prints a probable band, never a point: workforce proxy (benefit plan participants, or an observed employee count) multiplied by a sector revenue-per-employee range and a sector EBITDA margin range, with the method and a confidence that falls as the sector's economics widen. Where a QoE-backed figure is observed it replaces the band and says so.

The five scores, and the one combination

Dealability (size band, tenure, benefit footprint, workforce stability, sector demand, ownership type), sponsor fit (stated demand from an anonymised market prior plus observed vehicle activity in the vertical, size in the demanded band, region), transition readiness (dated signals, each with a weight and a half-life: succession, ownership events, transaction preparation, tenure, market pull), urgency (the freshest strong signal alone) and data confidence (source breadth, freshness, estimate quality). Opportunity is dealability times a transition factor times a confidence factor, and is used for ranking only. No age is ever a component: the system holds no verified age for anyone and will not guess one. A company whose transition score rests on tenure and market pull alone is not "for sale" and the page says so.

Mandates

A sponsor's buy box is what its vehicles show: the industry groups they file under, the states they are organised in, the equity raised per vehicle (a distribution, not a number), the share flagged as business combinations, the filing dates. A capital provider's mandate is what the regulator publishes (SBIC strategy, fund size, average investment, whether it is making new investments), what its Form ADV reports (private fund assets, fund count, registration date) and what its fund vehicles sold. Sponsor friendliness begins as a class prior labelled inference and is replaced by observed sponsor counterparties as transactions are ingested.

Which sponsors are shown

Every sponsor entity carries one status, derived from adjudication and the classifier and checked the same way in the database. Only a verified sponsor firm is listed by default, badged, or shown beside a company, and the database refuses to store a company pair for anything else.

  • Verified sponsor. Evidence identifies a firm: a publisher named it as the buyer in an announced transaction, a law firm or capital partner page names it as an independent sponsor, or its own site says so.
  • Unverified filing group, research only. A group of SEC Form D vehicles joined by shared principals or a shared address. No evidence yet identifies the firm behind it, so it is never shown beside a company as a sponsor.
  • Unverified candidate, research only. One vehicle, one mention or an individual. It is kept for research and is never shown beside a company as a sponsor.
  • Unverified, research only. The evidence does not settle whether this is a sponsor firm. It is kept for research and is never shown beside a company as a sponsor.
  • Not a sponsor firm. The evidence reads this entity as something other than an independent sponsor firm. It is never shown beside a company as a sponsor.
Why DFX does not pair companies with sponsors

Until September 2026 this site listed, for each private company, the verified sponsors whose past deals were in the company's subsector. We measured those pairs with blind audits: two readers judged a random sample of 100 served pairs from public sources, without seeing how the pairs were made, before any change was made to the rule.

Under the earlier matcher, 25 of 108 pairs (23%) were judged a strong or plausible fit, and its numeric score did not separate good pairs from bad (an AUC of 0.507, where 0.5 is chance). Under a stricter rule (a dated deal in the company's subsector or an adjacent one, at least two platform deals, no known blocker), 37 of 100 were a good fit. We then read every one of the 679 paired companies from its own website and every sponsor deal from its announcement: 168 companies could not be bought by an independent sponsor (subsidiaries, employee-owned companies, companies a sponsor already owned, recent sales), 159 were filed under the wrong subsector, and many deals counted as platforms were add-ons, minority stakes or duplicates. With those facts corrected, a fresh audit of 100 pairs found 26 a good fit (a 95% interval of 18% to 35%) and 19 wrong.

The corrections removed the failures they aimed at, and the rate did not rise. The pairs that failed now fail on the rule itself: one or two observed deals in a subsector do not show that a sponsor buys companies like the one beside it. The pairs that held were sponsors with several platform deals in the same subsector. A list that is wrong most of the time is worse than none, so pairs are withdrawn. Each verified sponsor's deal history is published instead, with the announcement behind every deal, and the corrected deal types.

Capital: observed relationships first

A capital relationship is a retrieved fact: a provider named in an announcement as financing a sponsor's deal. When a provider has financed two or more observed deals for the same sponsor it is shown as a repeat relationship, in a sentence with the roles, the dates and a link to each announcement. Counts are what DFX has read, mostly in lender and sponsor news archives, so they undercount and are not a forecast.

DFX does not recommend a capital provider. In a strict as-of backtest over 198 first-time financings, the DFX capital model put the actual provider in its top five 22.7% of the time, against 42.6% for a plain count of each provider's prior deals, so the model is not shown anywhere. Repeat relationships are also read with care: of 46 sponsor and provider pairs seen on two or more deals, 42 were seen on a single website, almost always the lender's own deal archive. When a sponsor's next financing was read from a different kind of source, it used its previous lender in 3 of 28 cases; when both came from the same kind of source, in 47 of 72. A repeat relationship is a fact about those deals, not a rate at which sponsors return to a lender.

Market activity: four classes, never conflated

Every ownership or transition row on the record is placed in exactly one class, and the classes are counted apart. CONFIRMED TRANSACTION: public transaction evidence identifies the ownership transaction and usually the buyer; the URL is on the row. LIKELY OWNERSHIP CHANGE: the plan sponsor of record became a holding or acquisition vehicle and no announcement has been found; the rule that inferred it and its measured precision are on the row (a deal-structure word in the new name was an ownership change in 94% of adjudicated cases, a bare holding word in 70%, over 77 cases on the 2023 and 2024 tapes). COMPANY TRANSITION: something happened to the company or its plan, the cause is not asserted: a final filing then absence from the record, a final filing whose next year is not yet published, a plan ended while the sponsor filed on, a rename, an EIN change. UNRESOLVED RECORD DEPARTURE: the company left the observable Form 5500 universe with no final filing and no successor EIN. Departures are never counted as transactions, never appear in a headline number and never enter a sponsor's history.

A departure is measured strictly: the EIN, and any successor EIN the filing names, is absent from every later plan year's Form 5500 and 5500-SF at any size and in any industry. A sponsor that shrank below the size floor, grew past the ceiling or changed business code is still filing and is not a departure. On the 2022 and 2023 tapes, measured against that raw record, 79 to 80% of sponsors that marked a return final were absent the following plan year, against 1.8 to 2.1% of sponsors that did not (the 88 to 90% quoted earlier was measured against the sized universe only). That is next-year absence after a final filing, not a sale rate, and it is never described as one.

A company survives its own rename. A HoldCo rename or a new EIN is recorded as an event on the same longitudinal company, whose page shows its current name, what it was called before, its prior EIN, the ownership event and the buyer where known, with its workforce and plan history intact.

Claim gates

A research claim is refused without a public URL and a quote. An estimate is never displayed as a fact. A source with no rights determination is ingested but never published. People are never pages; a principal's name appears only where the public filing already prints it.

Market prior

Early coverage is weighted by an anonymised demand model built from a registration sample of the US independent sponsor ecosystem: aggregate distributions over sectors, sizes, structures and geographies, with every cell below a floor folded into other. It influences what the system looks for and is never cited as evidence about any entity.

Sources and rights

Every source is registered with the operative terms quoted and the date they were read. Open means public domain; attribution means DFX's own derived work; restricted means facts are held with a quote and a link and the material itself is not republished.

SourcePublisherRightsBasisLast read
CMS Provider Enrollment and Ownership (data.cms.gov)
Automated · Registry
Centers for Medicare & Medicaid ServicesopenUnless otherwise noted, the data on data.cms.gov is in the public domain and may be used without restriction (US Government work). termsn/a
CMS Skilled Nursing Facility All Owners
Attended · Dataset
Centers for Medicare & Medicaid ServicesopenUnless otherwise noted, the data on data.cms.gov is in the public domain and may be used without restriction (US Government work). n/a
CMS Skilled Nursing Facility Change of Ownership and Enrollments files
Attended · Dataset
Centers for Medicare & Medicaid ServicesopenPublic CMS data release n/a
Colorado Secretary of State business entities
Automated · Registry
Colorado Secretary of StateopenPublic business entity records on the Colorado Information Marketplace (open data); entity id, name, status, formation date, principal address, agent; the transaction-history dataset carries dated filings. termsn/a
Company websites (about, team, news pages)
Automated · Web
each companyrestrictedCopyrighted works. We hold extracted facts with a short quote and a link; we do not republish page content. Robots directives honoured at fetch time. Sep 13, 2026
DFX model output (scores, estimates, matches)
Automated · Manual research
DFX IntelligenceattributionDerived values computed by DFX from the observations they cite. Always labelled inference or estimate, never fact. Sep 18, 2026
DFX analyst research (General-assisted, every claim URL-cited)
Research · Manual research
DFX IntelligenceattributionDFX's own work product. Every observation written under this source must carry a source_url to the public page the fact was read from and an evidence quote; a research observation with no URL is refused by the research module. Sep 16, 2026
DOL EFAST2 Form 5500 datasets
Automated · Filing
U.S. Department of Labor, Employee Benefits Security AdministrationopenUnless otherwise noted, the information on this website is in the public domain and may be reproduced or distributed without permission. termsSep 14, 2026
FMCSA Motor Carrier Census
Automated · Registry
Federal Motor Carrier Safety AdministrationopenUS Government work; data.transportation.gov datasets are published under a public domain dedication unless otherwise noted. termsSep 13, 2026
Press releases and deal announcements (wires, firm sites, law firm and lender tombstones)
Automated · News
variousrestrictedCopyrighted works. Facts extracted with a short quote and a link back to the announcement; no republication. n/a
Published obituaries and company death announcements
Attended · News
variousrestrictedCopyrighted works. Only the fact of a publicly announced death of a named owner or founder, its date, and the link are held. Never inferred; only explicit public announcements. n/a
SAM.gov entity registrations (public extract)
Automated · Registry
U.S. General Services AdministrationopenPublic entity data is available without restriction; the public extract excludes sensitive fields by design. termsn/a
SBA SBIC licensee directory
Automated · Registry
U.S. Small Business AdministrationopenUnless otherwise noted, content on this site is in the public domain. termsSep 14, 2026
SBIA Independent Sponsor Forum roster
Automated · Directory
Small Business Investor AlliancerestrictedTrade association member/forum roster published openly. Firm names and the listing URL are stored as facts about who appears in a public forum; the page itself is not copied. Republication on a commercial surface is a separate decision. termsSep 17, 2026
SEC Investment Adviser Public Disclosure, Form ADV data
Automated · Filing
U.S. Securities and Exchange CommissionopenUnless otherwise noted, information on this website is in the public domain and may be reproduced, published or otherwise used without the SEC's permission. termsSep 11, 2026
SEC EDGAR Form D data sets (quarterly)
Automated · Filing
U.S. Securities and Exchange CommissionopenUnless otherwise noted, information on this website is in the public domain and may be reproduced, published or otherwise used without the SEC's permission. termsSep 14, 2026
Independent sponsor firm websites (the firm's own contact and team pages)
Attended · Web
the sponsor firmrestrictedPublished by the subject on its own registrable domain; robots.txt honoured; contact_plane.extract holds the acceptance rule. Held for research and reach, not republished. n/a
Kentucky CON Online acquisition notices
Local schedule · Filing
Kentucky Cabinet for Health and Family Services, Office of Inspector GeneralopenPublic CON Online search Sep 14, 2026
Maine DHHS Certificate of Need reviews (nursing facility)
Local schedule · Filing
Maine Department of Health and Human ServicesopenPublic CON review pages Sep 14, 2026
New Jersey long-term care transfer of ownership listing
Local schedule · Filing
New Jersey Department of HealthopenPublic notice listing; closed items drop off, history from web.archive.org Sep 14, 2026
New York PHHPC meeting agendas (RHCF establishment exhibits)
Local schedule · Filing
New York State Department of HealthopenPublic meeting records of a state council Sep 14, 2026
Rhode Island Health Services Council review sheet (change in effective control)
Local schedule · Filing
Rhode Island Department of HealthopenPublic review status sheet published by the department Sep 15, 2026
Texas Comptroller active franchise taxpayers
Automated · Registry
Texas Comptroller of Public AccountsopenPublic business information published by the Comptroller on the state open-data portal (Tax Code Chapter 171); taxpayer name, address, SOS file number, charter and status dates, NAICS. termsSep 13, 2026
USAspending.gov awards
Automated · Dataset
U.S. Department of the TreasuryopenData on USAspending.gov is in the public domain. termsn/a