Best contact enrichment APIs, scored
APIs and platforms that add work emails, phone numbers and company data to a lead. 7 vendors ranked from pages read between 2026-10-18 and 2026-10-19.
How the scores work
Each product scores out of 100, from the vendor's own read record only: published terms 30, lowest price per 1,000 30, plans or packs priced 20, billing without a monthly minimum 20.
| Criterion | Weight | How it is computed |
|---|---|---|
| Published terms | 30 | Share of the 7 comparison terms (free option, free trial, credit expiry, contract minimum, API access, rate limits, support) that the vendor's own page states, times 30. |
| Lowest price per 1,000 | 30 | The lowest per-1,000 figure in US dollars in the vendor's price rows: printed on the page, or our arithmetic from a price per request. The cheapest on the list scores 30, the dearest scores 0, and the rest fall between them on a log scale. A vendor with no dollar per-1,000 figure, including one that prints its prices in another currency, scores 0 on this criterion. |
| Plans or packs priced | 20 | Price rows printed on the vendor's pages: three or more score 20, fewer score a proportional share. |
| Billing without a monthly minimum | 20 | Prepaid credits or per-request billing score 20, a mix of packs and subscriptions scores 10, and subscription, per-seat or quote-only billing scores 0. |
Ranked table
| Rank | Product | Score | Best for | Free result | How it bills | Cheapest per 1,000 | Sources |
|---|---|---|---|---|---|---|---|
| 1 | Anymailfinder | 87.1 | Lowest price per 1,000 on this list | Prepaid credits | about $4.99 | anymailfinder.com, anymailfinder.com | |
| 2 | FullEnrich | 76.9 | Billed by credits or per request, with no monthly minimum | Prepaid credits | about $35.00 | fullenrich.com, fullenrich.com, fullenrich.com | |
| 3 | Prospeo | 66.3 | Most comparison terms stated on its own page | A Free plan gives 100 credits a month with core filters and has no time limit. Source | Per seat | about $10 | prospeo.io |
| 4 | Lusha | 41.4 | Billed by credits or per request, with no monthly minimum | A free plan gives up to 40 credits per month plus basic prospecting, the browser extension and CRM integrations. Source | Prepaid credits | no dollar per-1,000 figure (read 2026-10-18) | lusha.com, lusha.com, lusha.com |
| 5 | People Data Labs | 33.8 | Buyers who want a choice of packs or a plan | Free tier gives up to 100 credits a month, with email, phone and address data hidden. Source | Credits and subscriptions | about $280.00 | peopledatalabs.com |
| 6 | Apollo | 31.4 | Most comparison terms stated on its own page | A free plan exists with no time limit, and email campaigns can be sent from connected Gmail accounts only. Source | Credits and subscriptions | no dollar per-1,000 figure (read 2026-10-18) | apollo.io, apollo.io |
| 7 | ZoomInfo | 17.1 | Buyers who are happy to ask for a quote | Quote only | no dollar per-1,000 figure (read 2026-10-18) | zoominfo.com |
Figures marked "about" are arithmetic or a reading of the page layout, not a number the vendor prints.
Why each vendor is on this list
- Anymailfinder: Anymailfinder sells an email finder and verifier on monthly or yearly credit plans plus one-time credit packs, charging only when a verified email is found. Larger plans lower the cost per credit. Source
- FullEnrich: FullEnrich sells B2B contact enrichment (work emails, personal emails and mobile numbers) paid for with monthly credits that are only spent when verified data is found. Per-credit cost falls as the monthly volume rises, and every plan includes unlimited users. Source
- Prospeo: Prospeo sells B2B contact and company data through per-user subscriptions that include a yearly or monthly credit allowance, with a free tier and larger credit add-ons. Source
- Lusha: Lusha sells B2B contact and company data through a credit system, where an email reveal costs fewer credits than a phone reveal, with a free tier and paid plans. Source
- People Data Labs: People Data Labs sells person and company data through APIs on a credit subscription, with a free testing tier and custom enterprise deals. The self-serve plan starts at a published monthly price with volume-based discounts. Source
- Apollo: Apollo sells a sales prospecting and outreach platform with a contact and company database, priced by plan tier and a monthly credit pool. Source
- ZoomInfo: ZoomInfo sells B2B contact and company data plus sales, marketing and recruiting applications, priced by feature level, number of licenses and credit use. The pricing page shows no dollar amounts and routes buyers to a form or a free trial. Source
LookValid
LookValid does not sell this product, so it is not ranked here.
More lists
Spot something wrong or out of date? Write to hello@meralume.com and we will review it.