Business Information Databases: Where to Find Company Data
Choose business directories, company registries, SEC filings, and other information sources by research task. Includes direct links and a company research checklist.
A business information database organizes records about companies. The right source depends on what you need: a list of local businesses, a legal-entity record, company financials, or a way to contact an organization. Start with the question and choose a source whose coverage fits it.
For local business discovery, use a map or business directory. For legal identity, consult the relevant company register. For SEC filings, use EDGAR. For business services and public contact routes, check the company's own website. This guide focuses on U.S. research, with some sources that also cover other countries.
In this guide
- Choose a source by the information you need
- Business databases and directories to start with
- How to match records to the right company
- A practical company research checklist
- When a local business research tool helps
- Frequently asked questions
Choose a source by the information you need
Use this table to choose a starting point. Coverage and available fields differ across jurisdictions, businesses, and subscription plans.
| Research question | Start here | Check before using the result |
|---|---|---|
| Which businesses operate in a city or category? | Google Maps, a local chamber, or an industry directory | Whether the listing is current and represents a company or a branch |
| What services does this business provide? | Its services and location pages | That the website belongs to the business you found |
| What is the registered legal entity? | The relevant government register; OpenCorporates can help locate records | Jurisdiction, entity identifier, and links back to the official source |
| Where can I find a filed company report? | SEC EDGAR for SEC filers | Filing entity, form, filing date, and reporting period |
| Where can I research company profiles or financial information? | D&B or a specialist company database identified through a library guide | Coverage, access requirements, field definitions, and estimate status |
| Which small businesses participate in federal contracting? | SBA Small Business Search | Capabilities and profile details relevant to the contracting task |
| How can I contact the business? | Its website or a suitable contact-data service | Publication source, role relevance, and how contact verification is defined |
An organization may appear in several of these sources under different names. Keep a trading name, legal name, and location name in separate fields when the relationship matters.
Business databases and directories to start with
Google Maps for operating locations and public business details
Google Maps is a practical starting point when you know the business category and area. Search a type of business with a city or region, open relevant listings, and follow the website link to confirm the match.
Google's Maps search help lists the kinds of place details you can find, including addresses, hours, phone numbers, websites, and reviews. Record which details are actually present for each business.
A listing can represent one operating site. Several listings may belong to the same organization. A missing website field means that the listing has no website recorded; check further before concluding that the business has no website.
Local chambers and industry directories for a defined community
A local chamber's member directory can help find businesses connected to a particular area. A trade association's directory can provide a narrower industry starting point. Check the directory's membership criteria and whether it lists organizations, individual practitioners, locations, or suppliers.
Treat membership as the directory's scope. Businesses outside that membership will be missing. Open the company's website to confirm its current services and location, and retain the directory URL as the discovery source.
D&B Business Directory for company profile research
The Dun & Bradstreet Business Directory offers a search by company name or D-U-N-S Number and describes company information available through its business records. It is a useful place to investigate an identified company and distinguish records with similar names.
Inspect the actual profile before assuming a field is available. Check which information is visible, which requires a product or account, how current it is, and whether any numerical field is estimated. Profile access does not automatically include bulk export rights.
Official company registers and OpenCorporates for legal entities
Search the government register for the jurisdiction where the entity is registered. For example, the Texas Secretary of State's business search resources link to its filing and search services. Access methods and available records vary by jurisdiction.
OpenCorporates brings legal-entity information from official sources into a searchable database. Use the jurisdiction and company identifier to locate the relevant record and follow its provenance back to the register when needed.
Keep the roles and address types exactly as described in the record. For example, the Texas registered agent FAQs explain that an agent may be an officer, owner, employee, or a separate service company. The agent label alone does not establish purchasing responsibility or beneficial ownership. A registered address may differ from a shop, office, or service area.
SEC EDGAR for filed reports and disclosures
SEC EDGAR supports searches using company names, tickers, CIK identifiers, keywords, and other filters. It is the appropriate starting point when the information you need is in an SEC filing.
Check the filing entity and the period covered before recording a financial figure. The filing date and reporting period are different fields. A parent company's consolidated figure also needs a different label from a single subsidiary's or branch's figures.
EDGAR covers filings submitted to the SEC. Many private local businesses will need other research sources.
SBA Small Business Search for federal contracting research
SBA Small Business Search is designed to help find small business contractors. Its search supports identifiers such as UEI and CAGE code alongside names and keywords.
The SBA's contracting guidance explains the database's purpose and its former name, Dynamic Small Business Search. Use it when capabilities and federal contracting are relevant to the research. Its scope differs from a general directory of every small business in a city.
Library guides for choosing specialized research databases
For deeper company analysis, Harvard Business School's Baker Library guide compares databases by research strengths and access requirements. It distinguishes purposes such as company profiles, financial analysis, private-company research, and early-stage company information.
The Library of Congress guide to subscription and free databases separates freely available sources from resources with access restrictions. Ask your own library which subscriptions you can use and under what conditions. A library subscription may limit access location, downloads, or permitted reuse.
Company websites for current services and published contact routes
Once you identify a business, review its official services, contact, location, and About pages. Save the specific pages supporting each finding. A legal name may appear in a footer or other company information, while the public brand appears in the logo.
An email address on a contact page is a published route to the business. Finding it does not establish mailbox deliverability or the recipient's buying authority. For owner and founder role research, continue with the existing public sources for company owner information guide.
How to match records to the right company
Start with a company name, then add identifiers that belong to the question. For a local operating business, compare its domain, address, and public business phone. For a legal entity, preserve its jurisdiction and registry identifier. For an SEC filer, preserve the CIK.
Review parent, subsidiary, franchise, and branch relationships before merging records. Sharing a brand or domain is useful evidence to investigate, but the buying account may require further confirmation.
As a hypothetical example, a directory lists “Cedar Accounting — North Office,” while a website lists North and South offices under one practice. Record the two operating locations under the same researched account if the website supports that relationship. If a registry returns a similarly named entity with no clear link to the website, leave that entity match unresolved.
Preserve disagreements between sources. An older directory address and a newer company contact page may describe a move. Record the dates and investigate before replacing one with the other.
A practical company research checklist
Keep a worksheet with these fields. Complete only the information relevant to the task.
| Field | What to save |
|---|---|
| Research purpose | Local discovery, company profile, legal identity, financial research, or contact research |
| Account and location | Trading name, relevant site, domain, and parent relationship where established |
| Source and identifier | Specific URL plus registry ID, CIK, or other relevant identifier |
| Finding | The observed value and its exact field meaning |
| Date and scope | Date checked, reporting period if applicable, company or branch level |
| Evidence status | Published by the company, filed, directory-listed, estimated, conflicting, or unknown |
| Next action | Fact to resolve, person assigned, and review date |
Before expanding the work, review a small sample:
- Does the source cover the kinds of companies you need?
- Do the names and identifiers match the intended businesses?
- Are the required fields present and sufficiently current?
- Can you distinguish company-level information from location-level information?
- Do the access and reuse terms support your intended workflow?
This review is more useful than comparing database sizes alone. A large source with poor coverage of your target industry can still produce a weak list.
When a local business research tool helps
OwnerClue fits the task of discovering local businesses and reviewing information published on their websites. Search a business type and location in the workspace, review the available business records, and research websites for published contact routes and supporting role evidence.
If you already have company domains, domain enrichment is the relevant starting point. Keep source URLs with your exported records so a reviewer can check where a contact or role was found. The data sources and verification documentation explains how to interpret those records.
Use other sources for research that requires complete employee counts, revenue, financing, or legal ownership. OwnerClue's contribution is the local discovery and public website research portion of the worksheet. The firmographic data guide explains how those business records fit alongside additional company attributes.
Frequently asked questions
Is there one database containing all company information?
Sources have different coverage and purposes. Combining an operating-business source, the company website, and a relevant registry or filing source often answers more of a research question than relying on one profile.
What is the difference between a business directory and a company registry?
A business directory helps people discover organizations, services, or locations. A company registry records legal entities within its jurisdiction. Match the source to whether you need an operating business or its legal identity.
Can I find company information for free?
Many company websites, business listings, and SEC filings can be viewed without a paid research subscription. Registry access, detailed profiles, exports, and specialist datasets can have separate requirements. Check the specific source and intended use.
Is a company contact database the same thing?
A contact database focuses on people and contact routes associated with organizations. Evaluate role coverage, source provenance, freshness, and the provider's definition of verification separately from company-profile coverage. A public company phone and a direct personal email solve different contact tasks.
How do I find local businesses before researching individual companies?
Begin with a business category and supported area in a map search or relevant directory. Check the website and location, review repeated branches, and apply your targeting rules. Use the firmographic segmentation worksheet to define those rules before growing the list.