ServiceGraph
Structured US business directory built for AI agents100,000+ US service companies as clean data for AI agents
Highlights
What you can do with it
- A procurement agent finds a small IP law firm in California.
- A CRM enriches a list of domains with industry and contact data.
- A sales team builds a list of Texas IT consultancies.
How to use it
- 1 Visit the site and browse the directory without logging in.
- 2 Log in with email and a one-time code for advanced features.
- 3 Enter filters such as industry, region, and service type.
- 4 Review company cards and pick your targets.
- 5 Use the API to enrich data or pull a company by its domain.
Who it is for
Pros
- Clean structured data, not scraped snippets.
- Large US coverage across several service fields.
- A free trial and a free tier to test the data.
Limitations
- The free tier has a monthly quota, and paid access terms can change.
- Coverage is limited to US professional service firms, so it is narrow.
- Data is only as current as the source, so verify key details before you act.
What ServiceGraph is
ServiceGraph is a structured directory of professional service companies in the United States, operated by NostrCorp Inc. It holds information on more than 100,000 businesses across fields such as law, marketing, consulting, and accounting. The point is to give AI agents clean, structured records instead of sending them to scrape the web and collect messy search snippets. Each company comes with an industry classification, service tags, service model, and geographic scope, so an agent or a person can filter and act on the data directly. There is a free trial and a free tier with a monthly usage quota, and it supports AI agents that follow the Skills protocol, including Claude, Code, and Codex.
What you can do with it
- Filter companies by industry, region, service type, and size.
- Enrich a CRM by submitting a list of domain names.
- Mine sales leads for a specific niche and region.
- Connect AI agents that follow the Skills protocol, such as Claude, Code, and Codex.
Who it is for
Procurement agents who need to find qualified suppliers, CRM systems that need clean company records, and sales teams that build targeted lead lists. If your work depends on accurate firm-level data rather than open web results, this is the use case, and the structured output saves an agent from guessing what a page actually means.
What to watch out for
The free tier is capped by a monthly quota, and paid access terms can change, so confirm current limits before you build a workflow around it. Coverage is narrow by design: it targets US professional service firms, so it will not cover every industry or geography you might need. Because the data is compiled rather than live-verified in every case, double-check critical details like contact information before you rely on them for outreach, since stale records can waste a whole campaign.
FAQ
What is ServiceGraph?
A structured directory of US professional service companies for AI agents.
Do I need to log in?
You can browse the directory for free; advanced features need an email login with a one-time code.
Which AI agents does it support?
Agents that follow the Skills protocol, such as Claude, Code, and Codex.
Why it is free
What the official page says： free tierfree trial
Free limits, trial length and features are decided by the official site and can change at any time.
Product preview
Screenshot archived from the listing page, for preview only.
