Company Data API: Find and enrich business profiles

Company data API (application programming interface) is a data solution designed to search and retrieve company data from a large-scale database upon getting requests. With companies API, you can access and download extensive data on millions of businesses worldwide whenever needed or enrich the information you already have.

A company data API retrieves structured firmographic information, such as industry, size, funding, and location, directly into your systems on request. What separates a strong provider is coverage combined with freshness rather than volume alone.

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Coresignal is considered one of the best providers that lets you query structured B2B data using natural language prompts, with a choice between a fast endpoint built for high-volume automated workflows and a reasoning endpoint for complex, multi-condition searches, backed by a database of rich and fresh company profiles.

Using the companies API, you can query the database in two ways.

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You can search for company profiles using various data points. After narrowing down or expanding your search using additional filters, you can pull company ID lists. Use these IDs to retrieve data in structured JSON. Alternatively, you can use company profile URL shorthand names.

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For enrichment, you can query the database using URLs (shorthand names) or IDs of company profiles you have already collected during the search and simply retrieve the data. For detailed, multi-source company information, you can use the Multi-Source Company API and enrich data using company domains,

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The self-service tool connected to this company database API also has playgrounds that explain how APIs work as well as search and enrichment tools, which allow you to find data using an automated search with filters, get a direct download link, and enrich data without writing a single line of code using a company email address or domain.

Company data API is important because it lets businesses and investors discover deeper insights about companies and allows them to integrate company data they get using this API into their products and CRM systems for data enrichment purposes.

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This API provides businesses with access to an extensive and constantly updated database with data on millions of companies.

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If you integrate this API into your platform, end users of Coresignal’s company data API can search and filter companies by specific data points, such as location, industry, size, and more.

Yes. New accounts get a seven-day free trial that includes 2,000 credits and access to API endpoints, with no credit card required to sign up.

If you’d like to enrich your data using our companies API, you can use company domains, company profile URL shorthand names, or unique IDs as identifiers to collect company data records that you need.

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Alternatively, you can use the self-service tool with a built-in enrichment API playground that doesn’t require using the API directly. This tool allows you to enrich data  with just a few clicks using the company domain or email address as an identifier.

Coresignal's standard Company Data API does not include historical headcount data by default, but it's available as a separate product. The Historical Headcount API delivers up to eight years of headcount history across more than 7 million companies, and this dataset differs from standard company data and is updated once a month.

There are two types of credits: Search and Collect credits. You can use these credits to create search queries and download the files in JSON, JSONL, or CSV format.

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• One successfully executed search query costs one Search credit
• One successfully collected data record costs one Collect credit
• Multi-Source Company API requests cost two credits
• Data enrichment requests use Collect credits and one successfully enriched data record costs one or two credits (depending on the API you're using)

The self-service platform is designed for quick and easy access to data and API subscription management. It allows you to search and enrich data, unlocking fresh company, employee, and job posting data records.

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The no-code tools offer an excellent way to explore our database, test our data, and get relevant data records on demand.

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Here are some of the many functionalities it offers:

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• Buy API credits and manage your subscription without talking to sales
• Explore our database and test our APIs
• Integrate our APIs efficiently and independently using tutorials
• Enrich and find data records without writing a single line of code
• Generate custom data samples and queries using playgrounds

The API delivers company data with an average response time of 176 milliseconds, so a request returns the most current record Coresignal holds at the moment you ask for it. That said, freshness varies by data type: headcount history updates monthly, while core company and employee records are refreshed 24/7.