Where to Find Off-Market Businesses for Sale: 11 Data Sources

Last updated: October 7, 2026

You find off-market businesses in the records operating companies leave behind: state entity filings, licence boards, federal registries, franchise filings, lien records and trade directories. Ten of the 11 source families below make no mention of a sale. Merge them and you get a counted list of the companies in your buy box, each with an owner's name attached, and you contact those owners directly. Each family comes with a public example you can open today.

We group sources into 11 families, and our directory names 200+ sources across them. For the list-building method behind this, see how to build an M&A target list.

How we chose the examples

For each family we picked one public source a buyer can open without a subscription. We checked that each URL loads and described each source from what its own page says.

The 11 source families

1. Mainstream databases & local directories

What it is: Commercial B2B databases and consumer-facing directories. We put Apollo, ZoomInfo, LinkedIn Sales Navigator, Google Maps / Google Places, Yelp and Better Business Bureau listings in this family, among others.
Example: BBB business search takes a business type, name, keyword, phone number, website address or email address.
Strengths: Broad and fast. These databases establish that a company exists.
Gaps: Every buyer in your category can buy the same export, so you need the other ten families to find companies no one else is calling.
Best for: A first pass on any buy box.

2. Entity & officer filings

What it is: Secretary of State records for corporations, LLCs and partnerships.
Example: Florida Sunbiz searches by name, officer or registered agent, FEI/EIN, zip code and street address. The Division of Corporations also offers free data downloads: daily files with each work day's new filings, and quarterly files that "contain all active data at the time the file is generated."
Strengths: You get officer names and a filing date, which tells you how long the entity has existed.
Gaps: The search has no revenue figure and no industry field, and the raw data carries dead registrations and duplicate entities. Bulk access differs from state to state.
Best for: Owner names and business age.

3. Contractor & trade licensing

What it is: State boards that license trades such as electrical, HVAC, plumbing and general contracting.
Example: The California CSLB license check looks up a licence by number, business name or personnel name. Its data portal offers lists of licensed contractors by classification and county, plus a master list of all California licensed contractors.
Strengths: The classification shows what work a company holds a licence for, and the status shows whether that licence is current.
Gaps: You work one state per board, and states format their data differently.
Best for: Home services and specialty trade roll-ups.

4. Healthcare & clinical licensing

What it is: Federal and state registries of licensed providers.
Example: The NPPES NPI Registry, which CMS calls "a free directory of all active National Provider Identifier (NPI) records." Organization records carry an authorized official's name, title and phone number, and CMS publishes a monthly full file plus weekly incremental files.
Strengths: National coverage in one file, with a named person on each organization record.
Gaps: CMS warns that issuing an NPI "does not ensure or validate that the Health Care Provider is Licensed or Credentialed." Providers report their own specialty (taxonomy) when they apply, so a specialty search can return organizations you did not ask for. Read the authorized official's title before you treat that person as the owner.
Best for: Dental, physical therapy and other clinical practice roll-ups.

5. Professional & financial registries

What it is: Registries for accountants, advisors, insurance agents and other licensed professionals.
Example: FINRA BrokerCheck, "a free tool created by the Financial Industry Regulatory Authority (FINRA) to research the background and experience of financial advisers and firms." You can search by individual or by firm.
Strengths: You see individuals and the firms they work for, which matters in acquisitions where clients follow the advisor.
Gaps: Lookups go one name at a time, so a firm-level list takes manual work.
Best for: Wealth management, accounting and insurance agency acquisitions.

6. Federal regulatory & safety

What it is: Agency enforcement and inspection records.
Example: OSHA establishment search finds inspections by establishment name, state, OSHA office, site zip code and inspection date range, and links to a separate search by NAICS or SIC industry code.
Strengths: An inspection record places a physical operation at an address, and the citation history flags safety issues before you spend diligence money.
Gaps: Only inspected companies appear, and you will need another source for the owner's name.
Best for: Manufacturing, construction and industrial services.

7. Franchise (FDD) registries

What it is: State filings of Franchise Disclosure Documents. The FTC Franchise Rule requires franchisors to give potential franchisees a disclosure document containing "23 specific items of information about the offered franchise, its officers, and other franchisees."
Example: NASAA's Electronic Filing Depository accepts franchise registration applications and "provides a public-facing website allowing members of the public to search and view these filings, free of charge."
Strengths: Because the disclosure covers other franchisees, one filing hands you a list of operators inside a single franchise system.
Gaps: EFD files with "participating state securities regulators," so you will still check registries in states outside it.
Best for: Buying multi-unit franchisees or building a franchise platform.

8. Transport, energy & environment

What it is: Registries for carriers, energy operators and regulated facilities.
Example: The FMCSA Motor Carrier Registrations census file covers truck and bus companies registered with FMCSA. DOT's description: "Contains contact information and demographic information (number of drivers, vehicles, commodities carried, etc)." For single lookups, the SAFER Company Snapshot searches by DOT number, MC/MX number or company name, one carrier at a time, free of charge. EPA's ECHO provides compliance and enforcement information, per its about page, "for more than one million regulated facilities nationwide."
Strengths: Driver and vehicle counts give you a size signal.
Gaps: A one-truck operator and a large fleet sit side by side in the file until you filter on those counts.
Best for: Trucking, logistics and environmental services.

9. Liens, distress & timing

What it is: UCC financing statements and judgment liens.
Example: The Texas Secretary of State UCC bulk order, a paid product. You can buy a Master Unload snapshot of the entire database, then subscribe to Daily Filing Updates, with files delivered in JSON. The record layout includes organization and individual debtor names.
Strengths: Liens are debt and asset signals. A filing shows who lends to the company and when, which hints at equipment intensity and refinancing moments. Pair it with trigger-based outreach.
Gaps: A lien tells you about debt and timing, and intent to sell still has to come from the owner. The Texas page warns that "the data needs to be imported into a database" before you can read it.
Best for: Timing your outreach.

10. Trade bodies & certification

What it is: Association member directories and certification databases.
Example: The ACCA contractor locator finds HVAC contractors "as identified by the non-profit Air Conditioning Contractors of America" by postal code, within a 5 to 100 mile radius.
Strengths: ACCA presents listed firms as Nationally Recognized contractors, a quality signal you can layer onto a list you already have.
Gaps: The page asks unlisted companies to join, so non-members do not appear.
Best for: Adding quality signals to an existing list.

11. Directories & marketplaces

What it is: Business-for-sale marketplaces and niche directories.
Example: BizBuySell, a business-for-sale listing marketplace.
Strengths: The owner has already decided to sell.
Gaps: You compete with every other buyer who sees the same listing.
Best for: Intent signals and asking-price comparisons, not off-market deals.

Comparison table

#	Source family	Public example	Owner or officer name?	Access	Main gap
1	Mainstream databases & local directories	BBB search	Sometimes	Search; bought exports	Same list as every buyer
2	Entity & officer filings	Florida Sunbiz	Yes, officers and agents	Search; free bulk in FL	No revenue or industry field
3	Contractor & trade licensing	California CSLB	Licensee and personnel	Search, lists by county	One state at a time
4	Healthcare & clinical licensing	NPPES NPI Registry	Authorized official	Search, monthly file	Self-reported taxonomy
5	Professional & financial registries	FINRA BrokerCheck	Individuals and firms	Search	One lookup at a time
6	Federal regulatory & safety	OSHA establishment search	No	Search	Only inspected sites
7	Franchise (FDD) registries	NASAA EFD	Franchisee information	Free search	Partial state participation
8	Transport, energy & environment	FMCSA census file	Contact information	Dataset, search	Needs size filtering
9	Liens, distress & timing	Texas SOS UCC bulk	Debtor names	Paid bulk	Signal, not intent
10	Trade bodies & certification	ACCA locator	Company listing	Search	Members only
11	Directories & marketplaces	BizBuySell	Listing contact	Search	Already on the market

How do you turn a list into owner conversations?

Five steps sit between a merged list and an owner meeting:

Resolve duplicates. If you pull a niche licensing board on top of the databases you already have, expect 70 to 95% of what comes back to be duplicate. The remaining slice holds the companies no one else is calling. Match name variants, DBAs and addresses down to one record per company.
Find a named owner. If you cannot put a person's name against a company, drop it, since a switchboard call wastes the attempt.
Verify the contact. Run contact-data providers in order until one verifies, check each email with two verifiers and run a line-type lookup on every phone number.
Contact the owner directly by phone, email, letter or social message, inside business hours in the owner's timezone, and stop at the first opt-out.
Qualify before the meeting. Confirm the person can sell, the company fits your buy box, there is a reason to talk now, and the owner knows who they are meeting.

We do this part for acquirers. We count the companies in your buy box, run 20+ contact-data providers in order to reach each owner, and put named, U.S.-based callers we selected and trained on the phone. They do not discuss price or what the business might be worth. You get an owner on your calendar with the call notes attached. Our process page walks through each stage, and our post on off-market deal sourcing channels compares the channels.

Frequently asked questions

Who can help me find off-market businesses to buy?

You have three options. Build the list yourself from the public sources in this guide, hire a buy-side search firm that runs a broader acquisition program, or hire an origination firm such as Axia, the firm behind this guide, which builds the target universe, runs outreach to owners and books qualified owner meetings.

How do I find businesses that are not listed for sale?

Start from the records operating companies file: Secretary of State entity filings, licence boards for regulated trades and professions, federal registries such as NPPES and FMCSA, franchise disclosure filings and UCC liens. Merge them, remove duplicates, find the owner's name, then contact the owner directly.

Are state business registries free to search?

The state sites in this guide, such as Florida Sunbiz and the California CSLB, offer one-at-a-time public search. Bulk access varies by state. Florida's Division of Corporations offers free daily and quarterly data downloads, while the Texas Secretary of State sells UCC data as a paid bulk order.

Which source gives you the owner's name?

Entity filings list officers and registered agents, NPPES lists an authorized official for organizations, and licence boards list the licensee or qualifier. Cross-check two sources before you call anyone.

How many data sources do I need?

Enough to cover your buy box. A regional HVAC search might need a few databases, one licence board and a trade directory. At Axia, our directory holds 200+ named sources across 11 families, and we draw the subset that matches each mandate, usually a few dozen.

Sources

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