Wikidata Local Business Coverage: What SEO Agencies Need to Know (2026)

When potential clients ask ChatGPT, Claude, or Perplexity for a “law firm in Austin” or “real estate agency near me,” the answers come from structured knowledge graphs—not from crawling every website. If your agency’s clients aren’t in those knowledge graphs, they’re invisible to AI-powered search no matter how strong their SEO is. This report presents March 2026 coverage statistics for US local businesses by industry and explains what the numbers mean for agencies offering Generative Engine Optimization (GEO) and AI visibility services.

Data as of March 2026. Numbers are from live SPARQL queries against the public Wikidata Query Service. Run our multi-industry coverage script to reproduce.

Key findings

• US law firms (with official website) in Wikidata: 314
  Entities that are instance of law firm (Q613142), in the United States (P17=Q30), with an official website (P856). For comparison, 813 law firms globally have a website in Wikidata.

• US medical clinics (with official website) in Wikidata: 34
  Health care facilities or businesses with a medical specialty, in the US, with a website, excluding hospitals. US hospitals in Wikidata: 3,278—so hospital coverage is far higher than clinic coverage.

• US real estate companies (with official website) in Wikidata: 52
  Entities that are instance of real estate company (Q1660104), in the US, with P856. 231 real estate companies globally have a website in Wikidata.

• Implication for agencies: The vast majority of US local businesses—law firms, medical practices, real estate agencies—are not in the knowledge graph that AI assistants query. That gap is a service opportunity: agencies that add “get your clients into the knowledge graph and monitor their AI visibility” can differentiate and grow retainers.

Why SEO agencies should care

Your clients are already being found—or missed—in AI answers. Most don’t know it yet. As an agency, you can:

1. Use the data in sales and strategy: Show prospects how few of their competitors are in Wikidata. “Most firms like yours aren’t in the data sources AI uses—here’s the gap.”
2. Package GEO as a service: Offer knowledge graph publishing plus AI visibility monitoring. Position it alongside SEO and content as a distinct line item.
3. Deliver with agency-grade tools: Use a platform that supports multi-client monitoring, white-label reports, and knowledge graph publishing so you can scale without custom development.

Agencies that add AI visibility now will own the category before “get me in ChatGPT” becomes a standard client request.

Methodology

We use the public Wikidata Query Service and consistent definitions:

• Law firms: instance of law firm (Q613142), country United States (P17=Q30), has official website (P856).
• Medical clinics: instance of health care facility (Q1774898) or business (Q4830453) with medical specialty (P1995), US, has website, excluding hospitals (Q16917).
• Real estate companies: instance of real estate company (Q1660104), US, has website.

Counts are produced by our multi-industry coverage script and written to reports/wikidata-multi-industry-coverage.json. For industry-specific definitions and deeper dives, see our US Legal Firms in Wikidata: Coverage Report and US Medical Clinics in Wikidata: Coverage Report.

What agency-grade looks like

To offer GEO and AI visibility at scale, agencies typically need:

• Multi-client visibility: Run AI visibility analyses for many clients from one dashboard (e.g. 50+ analyses per month).
• White-label reports: Client-ready reports with your agency’s logo and branding so you present the work as your own.
• Knowledge graph publishing: Publish client businesses to Wikidata (or equivalent) with the right properties so AI assistants can recommend them.
• Monitoring and reporting: See which prompts mention which clients, track trends, and show ROI.

Enterprise plans from GEO platforms are built for this: higher analysis limits, white-label report export, and support for multiple brands. If you’re evaluating options, look for these capabilities and for data that backs the need—like the coverage numbers in this report.

Next step: See AI Visibility for SEO Agencies for a summary of coverage by industry and how to add this service for your clients.

Internal links

• US Legal Firms in Wikidata: Coverage Report February 2026
• US Medical Clinics in Wikidata: Coverage Report February 2026
• Law Firm Visibility in ChatGPT
• Medical Clinic Visibility in ChatGPT
• Real Estate Agent Visibility in ChatGPT
• For Agencies