6 of the Best Company Enrichment APIs in 2026 (A Benchmark-Based Comparison)

When building applications that require company information, a company enrichment API can be a valuable tool. However, simply receiving a profile in response to a domain lookup may not provide all the necessary data for your application. CompanyEnrich led overall coverage and profile depth in a recent six-provider comparison, while competitors led in individual fields. This highlights the importance of considering required fields in your application workflow when choosing an API.

Enrichment may seem straightforward in a demo, but its practical use depends on whether your application can effectively use the returned data. For instance, a lead-routing workflow may require employee count and headquarters country, while a market-mapping product may need corporate relationships. An account research agent may prefer descriptions and reliable company identifiers. These different applications can reach different conclusions from the same response.

When selecting a company enrichment API, start by identifying the specific fields and decisions your application requires. A large response is helpful only if it contains the information your workflow needs. Our comparison of six providers can provide you with insights into their capabilities, limitations, and how to turn these results into a shortlist.

The benchmark for this comparison used CompanyEnrich's published benchmark, which evaluated 349 selected domains from the Majestic Million. These domains were alphabetic root .com domains balanced across prefixes. The comparison measured two main things: find rate (the share of submitted domains for which a provider returned a company profile) and profile depth (the number of populated fields among 27 normalized fields, averaged over that provider's returned profiles).

CompanyEnrich led the comparison on find rate and average profile depth, making it a reasonable starting point when an application needs several company attributes from a domain lookup. However, it did not lead in every field. For example, employee-count or range presence varied among providers. For instance, People Data Labs had a higher presence of employee-count fields at 60.2% compared to CompanyEnrich's 50.4%. This is crucial if employee count drives qualification rules in your application.

When evaluating APIs, consider not only the find rate and profile depth but also the specific fields present in the returned data. For example, Apollo, which placed second in the comparison, offered additional information such as industry, employee counts, revenue, funding, and corporate relationships. Apollo also had slightly higher presence of technology and funding fields than CompanyEnrich.

However, these differences are minor, so it is recommended to test the fields on your target accounts before making a final decision.

In summary, selecting a company enrichment API requires careful consideration of your application's specific needs. Start by identifying the required fields and evaluate providers based on their find rate and profile depth. Pay attention to the fields present in the returned data and test them with your target accounts before making a decision. By following these steps, you can choose an API that best supports your application's needs and provides the most relevant company information.