MailCleanup vs The Companies API
A factual comparison of features, pricing, and capabilities.
MailCleanup
MailCleanup is an email verification and list cleaning service for one-time bulk uploads, sold as credit packs priced by list size with no monthly plans and no automatic renewals.
The Companies API
The Companies API is a company enrichment API that turns a domain name into a structured company profile with firmographics such as industry, employee count, founding year and revenue across 50 million companies. Plans are monthly credit allowances with a request-rate limit.
Pricing comparison.
Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.
Feature comparison.
| Feature | MailCleanup | The Companies API |
|---|---|---|
| Bulk email list verification and cleaning | ||
| One-time credit packs by list size | ||
| No monthly plans or automatic renewals | ||
| Volume from a few thousand to millions per upload | ||
| Custom plans for large lists | ||
| Domain to company profile enrichment | ||
| Access to all 50M companies | ||
| Firmographics: industry, employee count, founding year, revenue | ||
| Company lists | ||
| Additional credits at a per-1,000 rate | ||
| Rate-limited API by plan |
Native integrations.
MailCleanup
The Companies API
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Information gathered from official sources and may change. Pricing and features last verified 9/4/2026. Please visit the official websites for the most current information.